From patchwork Thu Jan 26 14:44:10 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jagan Teki X-Patchwork-Id: 13117263 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3D338C54E94 for ; Thu, 26 Jan 2023 14:45:10 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229641AbjAZOpJ (ORCPT ); Thu, 26 Jan 2023 09:45:09 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53394 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229629AbjAZOpJ (ORCPT ); Thu, 26 Jan 2023 09:45:09 -0500 Received: from mail-pl1-x636.google.com (mail-pl1-x636.google.com [IPv6:2607:f8b0:4864:20::636]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A8B1740D9 for ; Thu, 26 Jan 2023 06:45:07 -0800 (PST) Received: by mail-pl1-x636.google.com with SMTP id g23so1972278plq.12 for ; Thu, 26 Jan 2023 06:45:07 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amarulasolutions.com; s=google; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=WK+2n5leeCN1ZUwhUDdriDW81kYnEsZfkVBz+dLgw2o=; b=InagqSKu9q+zYUh5/aSsIvy4NOiifEqAWyKy1cNmKJODY4AiKrDncx5F+ZoQSbUxmG rIWrKRdJCrUXBMc8ptNwgMTsSdpWM4pOYGO00TdtuCjLfGKdVbmv3bmEXxf7dPNMZhZO Cc1yIbIFsLM7wVitZN/uzb/mL+vxuK+IEqs8o= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=WK+2n5leeCN1ZUwhUDdriDW81kYnEsZfkVBz+dLgw2o=; b=MNHjmP5tIZ9/mSSOOg4IZ/Pi7mbgXmfyQfqxKW506Aw3fJw3W9MFOKhU3tUr862xCL qwjM3Z0La6/64NWvFf9kFmGNXoGpcTOEtnvpFILXBS6hLnGWkZ6i5hGsu4hFbX5lZYO/ 1OkzGXGUBTiTth3l9METPjWcY+u1S7ZETC88QHtB4zsf2OkQZ2s1tQ2dUOuahKGu7vUX uDdCVmgF0KzBytKNRBbFD3+VFPjVutZCznYdyvI/qhIvnlR6TlOJcuTNeC1olyjpZK9q kEp8/aphEsaabVaXdkPGK/VrN7bvIjmDaK9SZWvou57fSaAfMymy3DbcE9/JU+c/VTGC M5Yw== X-Gm-Message-State: AFqh2kqGjVd2JKMbRPXibYXTEHmBA9B9kx2CeaGbT9SZNF+tUAg0TZv7 5s0egsHzLaFHllqaiuUO4S41yA== X-Google-Smtp-Source: AMrXdXsyu6H4pTL9FyvrFWGqrqMWD2nvcoHbwqHils/x5P/YrkbiA+2vFMpeCy8vt05H4yQhmWiU9w== X-Received: by 2002:a17:90b:17cb:b0:22b:b9f4:4ad1 with SMTP id me11-20020a17090b17cb00b0022bb9f44ad1mr22793352pjb.34.1674744306993; Thu, 26 Jan 2023 06:45:06 -0800 (PST) Received: from localhost.localdomain ([2405:201:c00a:a238:3cb1:2156:ef87:8af5]) by smtp.gmail.com with ESMTPSA id d197-20020a6336ce000000b0042988a04bfdsm823660pga.9.2023.01.26.06.44.52 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 26 Jan 2023 06:45:06 -0800 (PST) From: Jagan Teki To: Andrzej Hajda , Inki Dae , Marek Szyprowski , Seung-Woo Kim , Kyungmin Park , Frieder Schrempf , Tim Harvey , Adam Ford , Robert Foss , Laurent Pinchart , Marek Vasut Cc: Matteo Lisi , dri-devel@lists.freedesktop.org, linux-samsung-soc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, NXP Linux Team , linux-amarula , Jagan Teki , Maxime Ripard , Linus Walleij , Maarten Lankhorst Subject: [PATCH v12 01/18] drm: of: Lookup if child node has DSI panel or bridge Date: Thu, 26 Jan 2023 20:14:10 +0530 Message-Id: <20230126144427.607098-2-jagan@amarulasolutions.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230126144427.607098-1-jagan@amarulasolutions.com> References: <20230126144427.607098-1-jagan@amarulasolutions.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-samsung-soc@vger.kernel.org Devices can also be child nodes when we also control that device through the upstream device (ie, MIPI-DCS for a MIPI-DSI device). Unlike the drm_of_find_panel_or_bridge helper it requires a special case to lookup a child node of the given parent that isn't either port or ports. Lookup for a child DSI node of the given parent that isn't either port or ports. If it is found then it will directly find the panel or bridge otherwise lookup for the child node with a given port and endpoint number as drm_of_find_panel_or_bridge does. Supporting this feature via existing drm_of_find_panel_or_bridge found several issues while handling usecases. Here is the previously failed attempt of similar and the same has been reverted later. commit <80253168dbfd> ("drm: of: Lookup if child node has panel or bridge") So, add a separate helper to handle this DSI use case. Example OF graph representation of DSI host, which has port but not has ports and has child panel node. dsi { compatible = "allwinner,sun6i-a31-mipi-dsi"; #address-cells = <1>; #size-cells = <0>; port { dsi_in_tcon0: endpoint { remote-endpoint = ; }; panel@0 { reg = <0>; }; }; Example OF graph representation of DSI host, which has ports but not has port and has child panel node. dsi { compatible = "samsung,exynos5433-mipi-dsi"; #address-cells = <1>; #size-cells = <0>; ports { #address-cells = <1>; #size-cells = <0>; port@0 { reg = <0>; dsi_to_mic: endpoint { remote-endpoint = <&mic_to_dsi>; }; }; }; panel@0 { reg = <0>; }; }; Example OF graph representation of DSI host, which has neither a port nor a ports but has child panel node. dsi0 { compatible = "ste,mcde-dsi"; #address-cells = <1>; #size-cells = <0>; panel@0 { reg = <0>; }; }; Cc: Maxime Ripard Cc: Laurent Pinchart Cc: Linus Walleij Cc: Maarten Lankhorst Signed-off-by: Jagan Teki --- Changes for v12: - none Changes for v11: - drop extra line Changes for v10: - new patch drivers/gpu/drm/drm_of.c | 112 ++++++++++++++++++++++++++++++++------- include/drm/drm_of.h | 12 +++++ 2 files changed, 104 insertions(+), 20 deletions(-) diff --git a/drivers/gpu/drm/drm_of.c b/drivers/gpu/drm/drm_of.c index 7bbcb999bb75..e165951e3545 100644 --- a/drivers/gpu/drm/drm_of.c +++ b/drivers/gpu/drm/drm_of.c @@ -216,6 +216,35 @@ int drm_of_encoder_active_endpoint(struct device_node *node, } EXPORT_SYMBOL_GPL(drm_of_encoder_active_endpoint); +static int of_drm_find_panel_or_bridge(struct device_node *remote, + struct drm_panel **panel, + struct drm_bridge **bridge) +{ + int ret = -EPROBE_DEFER; + + if (panel) { + *panel = of_drm_find_panel(remote); + if (!IS_ERR(*panel)) + ret = 0; + else + *panel = NULL; + } + + /* No panel found yet, check for a bridge next. */ + if (bridge) { + if (ret) { + *bridge = of_drm_find_bridge(remote); + if (*bridge) + ret = 0; + } else { + *bridge = NULL; + } + } + + of_node_put(remote); + return ret; +} + /** * drm_of_find_panel_or_bridge - return connected panel or bridge device * @np: device tree node containing encoder output ports @@ -238,7 +267,6 @@ int drm_of_find_panel_or_bridge(const struct device_node *np, struct drm_panel **panel, struct drm_bridge **bridge) { - int ret = -EPROBE_DEFER; struct device_node *remote; if (!panel && !bridge) @@ -259,30 +287,74 @@ int drm_of_find_panel_or_bridge(const struct device_node *np, if (!remote) return -ENODEV; - if (panel) { - *panel = of_drm_find_panel(remote); - if (!IS_ERR(*panel)) - ret = 0; - else - *panel = NULL; - } + return of_drm_find_panel_or_bridge(remote, panel, bridge); +} +EXPORT_SYMBOL_GPL(drm_of_find_panel_or_bridge); - /* No panel found yet, check for a bridge next. */ - if (bridge) { - if (ret) { - *bridge = of_drm_find_bridge(remote); - if (*bridge) - ret = 0; - } else { - *bridge = NULL; - } +/** + * drm_of_dsi_find_panel_or_bridge - return connected DSI panel or bridge device + * @np: device tree node containing encoder output ports + * @port: port in the device tree node + * @endpoint: endpoint in the device tree node + * @panel: pointer to hold returned drm_panel + * @bridge: pointer to hold returned drm_bridge + * + * Lookup for a child DSI node of the given parent that isn't either port + * or ports. If it is found then it will directly find the panel or bridge + * otherwise lookup for the child node with a given port and endpoint number + * as drm_of_find_panel_or_bridge does. + * + * Lookup a given child DSI node or a DT node's port and endpoint number, + * find the connected node and return either the associated struct drm_panel + * or drm_bridge device. Either @panel or @bridge must not be NULL. + * + * Returns zero if successful, or one of the standard error codes if it fails. + */ +int drm_of_dsi_find_panel_or_bridge(const struct device_node *np, + int port, int endpoint, + struct drm_panel **panel, + struct drm_bridge **bridge) +{ + struct device_node *remote; + + if (!panel && !bridge) + return -EINVAL; + if (panel) + *panel = NULL; + /** + * Devices can also be child nodes when we also control that device + * through the upstream device (ie, MIPI-DCS for a MIPI-DSI device). + * + * Lookup for a child node of the given parent that isn't either port + * or ports. + */ + for_each_available_child_of_node(np, remote) { + if (of_node_name_eq(remote, "port") || + of_node_name_eq(remote, "ports")) + continue; + + goto of_find_panel_or_bridge; } - of_node_put(remote); - return ret; + /* + * of_graph_get_remote_node() produces a noisy error message if port + * node isn't found and the absence of the port is a legit case here, + * so at first we silently check whether graph presents in the + * device-tree node. + */ + if (!of_graph_is_present(np)) + return -ENODEV; + + remote = of_graph_get_remote_node(np, port, endpoint); + +of_find_panel_or_bridge: + if (!remote) + return -ENODEV; + + return of_drm_find_panel_or_bridge(remote, panel, bridge); } -EXPORT_SYMBOL_GPL(drm_of_find_panel_or_bridge); +EXPORT_SYMBOL_GPL(drm_of_dsi_find_panel_or_bridge); enum drm_of_lvds_pixels { DRM_OF_LVDS_EVEN = BIT(0), diff --git a/include/drm/drm_of.h b/include/drm/drm_of.h index 10ab58c40746..7a97157c1fa0 100644 --- a/include/drm/drm_of.h +++ b/include/drm/drm_of.h @@ -47,6 +47,10 @@ int drm_of_find_panel_or_bridge(const struct device_node *np, int port, int endpoint, struct drm_panel **panel, struct drm_bridge **bridge); +int drm_of_dsi_find_panel_or_bridge(const struct device_node *np, + int port, int endpoint, + struct drm_panel **panel, + struct drm_bridge **bridge); int drm_of_lvds_get_dual_link_pixel_order(const struct device_node *port1, const struct device_node *port2); int drm_of_lvds_get_data_mapping(const struct device_node *port); @@ -99,6 +103,14 @@ static inline int drm_of_find_panel_or_bridge(const struct device_node *np, return -EINVAL; } +static inline int drm_of_dsi_find_panel_or_bridge(const struct device_node *np, + int port, int endpoint, + struct drm_panel **panel, + struct drm_bridge **bridge) +{ + return -EINVAL; +} + static inline int drm_of_lvds_get_dual_link_pixel_order(const struct device_node *port1, const struct device_node *port2) From patchwork Thu Jan 26 14:44:11 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jagan Teki X-Patchwork-Id: 13117264 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id AF0B0C05027 for ; Thu, 26 Jan 2023 14:45:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229629AbjAZOpR (ORCPT ); Thu, 26 Jan 2023 09:45:17 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53440 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229533AbjAZOpQ (ORCPT ); Thu, 26 Jan 2023 09:45:16 -0500 Received: from mail-pl1-x62c.google.com (mail-pl1-x62c.google.com [IPv6:2607:f8b0:4864:20::62c]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 64BB53AB6 for ; Thu, 26 Jan 2023 06:45:15 -0800 (PST) Received: by mail-pl1-x62c.google.com with SMTP id a18so2023087plm.2 for ; Thu, 26 Jan 2023 06:45:15 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amarulasolutions.com; s=google; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=BbuFui50T2yH9lXHDgl2DPCW0nuBgP82n9Kixz8u2B4=; b=NjLrpZiH1F8NfMSVlPGCbh2EXunTVmLORQW5P/C5teDrIczUd3nWuuN6Mi3mZ/1XOR k/jCFOhNFtwUOH8qTRtktsPukWie3yr7fX2KOQV7u5GsHUefv64ViQf0ioPooTyp/Pwu Yoc8wNKq8vOZgEh5zBCYvebG0jowdv3ORf2ug= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=BbuFui50T2yH9lXHDgl2DPCW0nuBgP82n9Kixz8u2B4=; b=dWCatW35EZsJepFuezlLvYP3Hso6ecvwVQ27z7D/xC66gjxMw4QqDrgJTThsUhpA8K yT1pMcktLCXDvNWoNz1r16MH0zuZroRq9hB2ozbosPzHnXAgwH/7hBa3d8wgkNeFODB4 XTtPutIbME8amtiSyNZ+U7PaMCh7Zsf68TnGR4tuFTAVt1RX+pFWFLkH+vfQiuj2V9F6 r6CqVKkcVw5Owt0MahvXgUGht/ORdxSbxoEMM3wslaLx90MuiHxMul4a+U2n0r4aAgli 0qggwpjAFN9YUhbOVkAMUMiCr0zfwIF/aLXsjBqK66eWCGD5IchGatsmUYPRH5gBQhGQ DP4Q== X-Gm-Message-State: AFqh2krYnoOn0FD8qXJm4Krh+xxD8NRBT5FiQflFM1xpYuLRo9yrQXq9 xOShFOfgJLeJDM9yvw/7V/ms+g== X-Google-Smtp-Source: AMrXdXt1zDNXhAfKJemBXBmmAcO4SK8gFBozDTPfPU1zLylCQgg6AqhLhORHuZpVHNZ94YcpMf6kEg== X-Received: by 2002:a05:6a20:1611:b0:b4:6f9:ef7d with SMTP id l17-20020a056a20161100b000b406f9ef7dmr46784387pzj.35.1674744314855; Thu, 26 Jan 2023 06:45:14 -0800 (PST) Received: from localhost.localdomain ([2405:201:c00a:a238:3cb1:2156:ef87:8af5]) by smtp.gmail.com with ESMTPSA id d197-20020a6336ce000000b0042988a04bfdsm823660pga.9.2023.01.26.06.45.07 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 26 Jan 2023 06:45:14 -0800 (PST) From: Jagan Teki To: Andrzej Hajda , Inki Dae , Marek Szyprowski , Seung-Woo Kim , Kyungmin Park , Frieder Schrempf , Tim Harvey , Adam Ford , Robert Foss , Laurent Pinchart , Marek Vasut Cc: Matteo Lisi , dri-devel@lists.freedesktop.org, linux-samsung-soc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, NXP Linux Team , linux-amarula , Jagan Teki , Maxime Ripard , Linus Walleij , Maarten Lankhorst Subject: [PATCH v12 02/18] drm: bridge: panel: Add devm_drm_of_dsi_get_bridge helper Date: Thu, 26 Jan 2023 20:14:11 +0530 Message-Id: <20230126144427.607098-3-jagan@amarulasolutions.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230126144427.607098-1-jagan@amarulasolutions.com> References: <20230126144427.607098-1-jagan@amarulasolutions.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-samsung-soc@vger.kernel.org Add devm OF helper to return the next DSI bridge in the chain. Unlike general bridge return helper devm_drm_of_get_bridge, this helper uses the dsi specific panel_or_bridge helper to find the next DSI device in the pipeline. Helper lookup a given child DSI node or a DT node's port and endpoint number, find the connected node and return either the associated struct drm_panel or drm_bridge device. Cc: Maxime Ripard Cc: Laurent Pinchart Cc: Linus Walleij Cc: Maarten Lankhorst Signed-off-by: Jagan Teki --- Changes for v12, v11: - none Changes for v10: - new patch drivers/gpu/drm/bridge/panel.c | 34 ++++++++++++++++++++++++++++++++++ include/drm/drm_bridge.h | 2 ++ 2 files changed, 36 insertions(+) diff --git a/drivers/gpu/drm/bridge/panel.c b/drivers/gpu/drm/bridge/panel.c index e8aae3cdc73d..be281eb26356 100644 --- a/drivers/gpu/drm/bridge/panel.c +++ b/drivers/gpu/drm/bridge/panel.c @@ -499,4 +499,38 @@ struct drm_bridge *drmm_of_get_bridge(struct drm_device *drm, } EXPORT_SYMBOL(drmm_of_get_bridge); +/** + * devm_drm_of_dsi_get_bridge - Return next DSI bridge in the chain + * @dev: device to tie the bridge lifetime to + * @np: device tree node containing encoder output ports + * @port: port in the device tree node + * @endpoint: endpoint in the device tree node + * + * Lookup a given child DSI node or a DT node's port and endpoint number, + * find the connected node and return either the associated struct drm_panel + * or drm_bridge device. Either @panel or @bridge must not be NULL. + * + * Returns a pointer to the bridge if successful, or an error pointer + * otherwise. + */ +struct drm_bridge *devm_drm_of_dsi_get_bridge(struct device *dev, + struct device_node *np, + u32 port, u32 endpoint) +{ + struct drm_bridge *bridge; + struct drm_panel *panel; + int ret; + + ret = drm_of_dsi_find_panel_or_bridge(np, port, endpoint, + &panel, &bridge); + if (ret) + return ERR_PTR(ret); + + if (panel) + bridge = devm_drm_panel_bridge_add(dev, panel); + + return bridge; +} +EXPORT_SYMBOL(devm_drm_of_dsi_get_bridge); + #endif diff --git a/include/drm/drm_bridge.h b/include/drm/drm_bridge.h index 42f86327b40a..ccb14e361d3f 100644 --- a/include/drm/drm_bridge.h +++ b/include/drm/drm_bridge.h @@ -931,6 +931,8 @@ struct drm_bridge *devm_drm_of_get_bridge(struct device *dev, struct device_node u32 port, u32 endpoint); struct drm_bridge *drmm_of_get_bridge(struct drm_device *drm, struct device_node *node, u32 port, u32 endpoint); +struct drm_bridge *devm_drm_of_dsi_get_bridge(struct device *dev, struct device_node *node, + u32 port, u32 endpoint); #else static inline struct drm_bridge *devm_drm_of_get_bridge(struct device *dev, struct device_node *node, From patchwork Thu Jan 26 14:44:12 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Jagan Teki X-Patchwork-Id: 13117265 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 67200C61D97 for ; Thu, 26 Jan 2023 14:45:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229639AbjAZOpY (ORCPT ); Thu, 26 Jan 2023 09:45:24 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53446 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229533AbjAZOpX (ORCPT ); Thu, 26 Jan 2023 09:45:23 -0500 Received: from mail-pj1-x102e.google.com (mail-pj1-x102e.google.com [IPv6:2607:f8b0:4864:20::102e]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C36CB3AB6 for ; Thu, 26 Jan 2023 06:45:21 -0800 (PST) Received: by mail-pj1-x102e.google.com with SMTP id j5so1705404pjn.5 for ; Thu, 26 Jan 2023 06:45:21 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amarulasolutions.com; s=google; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=szahjNSumSDXHid0fYalhBWCMxVcircmAlXVe0dAaOg=; b=GMHSCK0VlGTKgtoBtSvuboOBZKfQwGe4VvGA8evVShcGrPNRrBynjw4wC7iXSFwNVz zBS5X10R6Pk8GfyYwEQxWRxFeD9+4y/H+TYuvignx2TzI9MqWOQ+lu1xpSTbfYEdkD7T Q3qOeWLfiJ9MnsF6WzBC2b7HyINNXUhBqhvYY= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=szahjNSumSDXHid0fYalhBWCMxVcircmAlXVe0dAaOg=; b=C0G414i0iw/gNkRvIDCK2Fi2YeNus2w6yqdibjuuD91eTxs/sepOffwvMozbXSHnp2 ZmhLutDXDkS2ohNoev1IiTae2RlTiyZo5E7blnyEaer2UYbndoxxB8FCbyU3zqpykwa8 2lb9dT4qkyDE4iD3fna3483DcXFQOCgZjE9Ef4q49eFI0exjEY7FG7+3fGWLgJvvsgFi 0Ri+M2z0uLwCKiSzAL/n1z7R/4YLONE41tuJgClzbxGvWhUnsYW/TeolSuZR3LLe1UIq 1eg2duuzFjTtn5h7YgErFh0wzPK95q3mJI16vEOYkMqtzO/+WhhtjZaKDogMhYfcZyQ0 4C1g== X-Gm-Message-State: AO0yUKVmktUtgo5JNf+7H3wJtw6kwu9PsSKhYiWG1m852fXm080aOTFA 23ahdpheJgAMuxIEFOqMA9+BHg== X-Google-Smtp-Source: AK7set8viY2FGvSkAuaTk1msXSlH4Fh1y7TTnoO52wKvjLois8RZieo3sfS0/ThWzwObgzjlVHRa+w== X-Received: by 2002:a05:6a20:3950:b0:b8:6a9c:fe21 with SMTP id r16-20020a056a20395000b000b86a9cfe21mr2839859pzg.51.1674744321250; Thu, 26 Jan 2023 06:45:21 -0800 (PST) Received: from localhost.localdomain ([2405:201:c00a:a238:3cb1:2156:ef87:8af5]) by smtp.gmail.com with ESMTPSA id d197-20020a6336ce000000b0042988a04bfdsm823660pga.9.2023.01.26.06.45.15 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 26 Jan 2023 06:45:20 -0800 (PST) From: Jagan Teki To: Andrzej Hajda , Inki Dae , Marek Szyprowski , Seung-Woo Kim , Kyungmin Park , Frieder Schrempf , Tim Harvey , Adam Ford , Robert Foss , Laurent Pinchart , Marek Vasut Cc: Matteo Lisi , dri-devel@lists.freedesktop.org, linux-samsung-soc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, NXP Linux Team , linux-amarula , Jagan Teki Subject: [PATCH v12 03/18] drm: exynos: dsi: Drop explicit call to bridge detach Date: Thu, 26 Jan 2023 20:14:12 +0530 Message-Id: <20230126144427.607098-4-jagan@amarulasolutions.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230126144427.607098-1-jagan@amarulasolutions.com> References: <20230126144427.607098-1-jagan@amarulasolutions.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-samsung-soc@vger.kernel.org Exynos DSI already converted into a bridge driver, so bridge detach will suppose happened during bridge chain removal done by the bridge core. Drop the explicit call chain to detach the bridge. Signed-off-by: Jagan Teki --- Changes for v12, v11: - none Changes for v10: - new patch drivers/gpu/drm/exynos/exynos_drm_dsi.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/drivers/gpu/drm/exynos/exynos_drm_dsi.c b/drivers/gpu/drm/exynos/exynos_drm_dsi.c index 06d6513ddaae..df15501b1075 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_dsi.c +++ b/drivers/gpu/drm/exynos/exynos_drm_dsi.c @@ -1531,8 +1531,6 @@ static int exynos_dsi_host_detach(struct mipi_dsi_host *host, struct exynos_dsi *dsi = host_to_dsi(host); struct drm_device *drm = dsi->encoder.dev; - if (dsi->out_bridge->funcs->detach) - dsi->out_bridge->funcs->detach(dsi->out_bridge); dsi->out_bridge = NULL; if (drm->mode_config.poll_enabled) From patchwork Thu Jan 26 14:44:13 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jagan Teki X-Patchwork-Id: 13117266 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8AA4DC05027 for ; Thu, 26 Jan 2023 14:45:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229533AbjAZOpc (ORCPT ); Thu, 26 Jan 2023 09:45:32 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53466 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229781AbjAZOpb (ORCPT ); Thu, 26 Jan 2023 09:45:31 -0500 Received: from mail-pl1-x62a.google.com (mail-pl1-x62a.google.com [IPv6:2607:f8b0:4864:20::62a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1E58240D9 for ; Thu, 26 Jan 2023 06:45:30 -0800 (PST) Received: by mail-pl1-x62a.google.com with SMTP id a18so2023787plm.2 for ; Thu, 26 Jan 2023 06:45:30 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amarulasolutions.com; s=google; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=+otNyxyXWcvyXtJMZVAopiBO8ADOw+cl3pmhYxy9GFM=; b=eXOCY6fEwa1JrUYgLzhqoNqUhakM22BvEl43yn19idNsGR+O6No3F5Bq4A/xaTf4xZ 745lwgYE0mn6euJXiQ1QuJG6QTobS8z0nE6n8bphXGLpqJ8BW1KWkyysgi/EHGlpp7AA hbcdWsoO4+FWpPACsw+mi56ljGfDZqR/dmzzE= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=+otNyxyXWcvyXtJMZVAopiBO8ADOw+cl3pmhYxy9GFM=; b=zhMqqYs06u74vZ0yzK7fNuaL50G0Bg5ruFDR7nKiQZo9k4lUq01j/9h/dGW65RcaPW 8/TEUC+UZx+kL7lZ7y6rzAHS5gmYGAsGA1gYw/OT4+Jx5owmklD0v1IsfKeU52FkEG6o IGhi/l4IcggNjes88F7uphRATNSSw84pAc+GAXHAeZgZyOksTWGla3XUIzM8evqBLih3 A/OwEA9hvqdEDVWQsvfdR4+LXRGwn2oazic/R3I5T5y+AHfrQSidB4aBgZojsOJqA6I2 yFwCEC8hW7lulkzVSkJ+niXAiZjqTlWfSzIjQQtWzrx21WrmdwIi7LNMcUgmr+DCAF+U OTOg== X-Gm-Message-State: AFqh2koavPexExkq3+pVC8aIPeip/uHztrHCEYu3nq7+XFouCvbCOaYg YJ5QHVHpXjZtS+kPbIDzO6sK7A== X-Google-Smtp-Source: AMrXdXuNdw1GnUQgFqRPC5d02u5dQmcpQR8QFkHUIq13Y/hHY9DQ4R191oCz8HOpqTIIevqOMLTBuA== X-Received: by 2002:a05:6a20:8b88:b0:b8:aca6:b64f with SMTP id m8-20020a056a208b8800b000b8aca6b64fmr34401167pzh.34.1674744329524; Thu, 26 Jan 2023 06:45:29 -0800 (PST) Received: from localhost.localdomain ([2405:201:c00a:a238:3cb1:2156:ef87:8af5]) by smtp.gmail.com with ESMTPSA id d197-20020a6336ce000000b0042988a04bfdsm823660pga.9.2023.01.26.06.45.21 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 26 Jan 2023 06:45:28 -0800 (PST) From: Jagan Teki To: Andrzej Hajda , Inki Dae , Marek Szyprowski , Seung-Woo Kim , Kyungmin Park , Frieder Schrempf , Tim Harvey , Adam Ford , Robert Foss , Laurent Pinchart , Marek Vasut Cc: Matteo Lisi , dri-devel@lists.freedesktop.org, linux-samsung-soc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, NXP Linux Team , linux-amarula , Jagan Teki Subject: [PATCH v12 04/18] drm: exynos: dsi: Switch to devm_drm_of_dsi_get_bridge Date: Thu, 26 Jan 2023 20:14:13 +0530 Message-Id: <20230126144427.607098-5-jagan@amarulasolutions.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230126144427.607098-1-jagan@amarulasolutions.com> References: <20230126144427.607098-1-jagan@amarulasolutions.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-samsung-soc@vger.kernel.org devm_drm_of_dsi_get_bridge is capable of looking up the downstream DSI bridge and panel and trying to add a panel bridge if the panel is found. Replace explicit finding calls with devm_drm_of_dsi_get_bridge. Signed-off-by: Jagan Teki --- Changes for v12, v11: - none Changes for v10: - new patch drivers/gpu/drm/exynos/exynos_drm_dsi.c | 13 +------------ 1 file changed, 1 insertion(+), 12 deletions(-) diff --git a/drivers/gpu/drm/exynos/exynos_drm_dsi.c b/drivers/gpu/drm/exynos/exynos_drm_dsi.c index df15501b1075..4a165764121d 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_dsi.c +++ b/drivers/gpu/drm/exynos/exynos_drm_dsi.c @@ -1470,18 +1470,9 @@ static int exynos_dsi_host_attach(struct mipi_dsi_host *host, struct device *dev = dsi->dev; struct drm_encoder *encoder = &dsi->encoder; struct drm_device *drm = encoder->dev; - struct drm_panel *panel; int ret; - panel = of_drm_find_panel(device->dev.of_node); - if (!IS_ERR(panel)) { - dsi->out_bridge = devm_drm_panel_bridge_add(dev, panel); - } else { - dsi->out_bridge = of_drm_find_bridge(device->dev.of_node); - if (!dsi->out_bridge) - dsi->out_bridge = ERR_PTR(-EINVAL); - } - + dsi->out_bridge = devm_drm_of_dsi_get_bridge(dev, dev->of_node, 1, 0); if (IS_ERR(dsi->out_bridge)) { ret = PTR_ERR(dsi->out_bridge); DRM_DEV_ERROR(dev, "failed to find the bridge: %d\n", ret); @@ -1531,8 +1522,6 @@ static int exynos_dsi_host_detach(struct mipi_dsi_host *host, struct exynos_dsi *dsi = host_to_dsi(host); struct drm_device *drm = dsi->encoder.dev; - dsi->out_bridge = NULL; - if (drm->mode_config.poll_enabled) drm_kms_helper_hotplug_event(drm); From patchwork Thu Jan 26 14:44:14 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jagan Teki X-Patchwork-Id: 13117267 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id F2A25C54E94 for ; Thu, 26 Jan 2023 14:45:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229781AbjAZOpo (ORCPT ); Thu, 26 Jan 2023 09:45:44 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53472 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229642AbjAZOpm (ORCPT ); Thu, 26 Jan 2023 09:45:42 -0500 Received: from mail-pl1-x62b.google.com (mail-pl1-x62b.google.com [IPv6:2607:f8b0:4864:20::62b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5FDFF3AB6 for ; Thu, 26 Jan 2023 06:45:41 -0800 (PST) Received: by mail-pl1-x62b.google.com with SMTP id 5so2020883plo.3 for ; Thu, 26 Jan 2023 06:45:41 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amarulasolutions.com; s=google; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=BaDUbyvaCyU9ZYo1dnwr9WAZI/IyrlPNZL6ZHPBz5Bk=; b=ThwyGZGdOeWLAVxgJnCuRyaLP3g/9BmANXXNJCjyZo7NVzwAb9YxdHJ8tDHHb8JYxh ULFPoZCOTdW8yfup82Mv9VxQ4oOKpg7y9//LLj2a06uJdyo0M6YMQC4mJ0+qJJVa8fV8 eNhVsMUiMbYI7TvJxoFwBWrz8FBCH2zkc+SQs= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=BaDUbyvaCyU9ZYo1dnwr9WAZI/IyrlPNZL6ZHPBz5Bk=; b=RUCWAOe2ySNCbxZXdJty1DEMOAqVTqTKOrb6sRMQrX3uMIiPO1a+MNuff8RwJbt/Sm GYL2clads/N6CvWkfn9NIQEB8nRsBRdLuDhAE9ddu6CBdSMEYsOsbtEYOc0ehtdPtY+h Qv6CAJp3mHT7XQrJNrTdIcbGqvst+lx/+1rGHgJMW/LJJpsH3/DqJjGoYPFDAH0ZbA4R 44gaARGLVvFvnkpHcdvNkPyQ3j8+ubWupBqRawyx0wd1LirCH2JAv6KqEbozC094oSWJ k8bUPoGj+VNRwzsxNUaD5sdSd30uXpFjS93kNrsEgEaz0ozYfv6hxxFB8fqb4z4u0u6d oGlQ== X-Gm-Message-State: AO0yUKV4HZABmPPKNsux6kSYf7itjeS7SkmCcReQT9ljwTXWE/8PusdL RPfV8mbIPsFJKgT14nx+j8ilW3JkmYHUP9y7rUY= X-Google-Smtp-Source: AK7set8F1v98xH49xiuoWfSvm5Xn6Ukd+Rk/o2nUU+2RLymR+7uEmXIJEIqvwGAIwwqW+WFGQ56yZw== X-Received: by 2002:a05:6a20:7d83:b0:bb:cf2f:3b09 with SMTP id v3-20020a056a207d8300b000bbcf2f3b09mr8145162pzj.51.1674744340798; Thu, 26 Jan 2023 06:45:40 -0800 (PST) Received: from localhost.localdomain ([2405:201:c00a:a238:3cb1:2156:ef87:8af5]) by smtp.gmail.com with ESMTPSA id d197-20020a6336ce000000b0042988a04bfdsm823660pga.9.2023.01.26.06.45.30 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 26 Jan 2023 06:45:40 -0800 (PST) From: Jagan Teki To: Andrzej Hajda , Inki Dae , Marek Szyprowski , Seung-Woo Kim , Kyungmin Park , Frieder Schrempf , Tim Harvey , Adam Ford , Robert Foss , Laurent Pinchart , Marek Vasut Cc: Matteo Lisi , dri-devel@lists.freedesktop.org, linux-samsung-soc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, NXP Linux Team , linux-amarula , Jagan Teki Subject: [PATCH v12 05/18] drm: exynos: dsi: Mark PHY as optional Date: Thu, 26 Jan 2023 20:14:14 +0530 Message-Id: <20230126144427.607098-6-jagan@amarulasolutions.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230126144427.607098-1-jagan@amarulasolutions.com> References: <20230126144427.607098-1-jagan@amarulasolutions.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-samsung-soc@vger.kernel.org The same Samsung MIPI DSIM master can also be used in NXP's i.MX8M Mini/Nano/Plus SoC. In i.MX8M Mini/Nano/Plus SoC the DSI Phy requires a MIPI DPHY bit to reset in order to activate the PHY and that can be done via upstream i.MX8M blk-ctrl driver. So, mark the phy get as optional. Reviewed-by: Frieder Schrempf Reviewed-by: Marek Vasut Signed-off-by: Jagan Teki --- Changes for v12: - none Changes for v11: - collect Frieder RB Changes for v10: - add Plus in commit message - collect Marek RB Changes for v9, v8, v7, v6, v5, v4, v3, v2: - none Changes for v1: - new patch drivers/gpu/drm/exynos/exynos_drm_dsi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/exynos/exynos_drm_dsi.c b/drivers/gpu/drm/exynos/exynos_drm_dsi.c index 4a165764121d..5918d31127aa 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_dsi.c +++ b/drivers/gpu/drm/exynos/exynos_drm_dsi.c @@ -1687,7 +1687,7 @@ static int exynos_dsi_probe(struct platform_device *pdev) if (IS_ERR(dsi->reg_base)) return PTR_ERR(dsi->reg_base); - dsi->phy = devm_phy_get(dev, "dsim"); + dsi->phy = devm_phy_optional_get(dev, "dsim"); if (IS_ERR(dsi->phy)) { dev_info(dev, "failed to get dsim phy\n"); return PTR_ERR(dsi->phy); From patchwork Thu Jan 26 14:44:15 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jagan Teki X-Patchwork-Id: 13117268 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0048EC05027 for ; Thu, 26 Jan 2023 14:45:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229642AbjAZOp5 (ORCPT ); Thu, 26 Jan 2023 09:45:57 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53512 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229512AbjAZOp4 (ORCPT ); Thu, 26 Jan 2023 09:45:56 -0500 Received: from mail-pj1-x1033.google.com (mail-pj1-x1033.google.com [IPv6:2607:f8b0:4864:20::1033]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 78B555FFF for ; Thu, 26 Jan 2023 06:45:55 -0800 (PST) Received: by mail-pj1-x1033.google.com with SMTP id z9-20020a17090a468900b00226b6e7aeeaso1921953pjf.1 for ; Thu, 26 Jan 2023 06:45:55 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amarulasolutions.com; s=google; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=fCKziNtWsgASij+dWWGaDpyDhpD6z6/DqCOerXlFmzI=; b=rOfFYHAKORMBAsDbvmhXC9docArZMSXO5NJd6EXpuu1shW8vQGvscEZhSVEO07IhZx plUjpN4BdGz8pHwqSKZ7kyKVi/shAcU8LCO2Uq05OGd7/Yzc2+8jMDg+TOf6tMYMpx9h g/eJydgeYV9eoAnqjNCpa6V93Qjzhd5e40NpM= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=fCKziNtWsgASij+dWWGaDpyDhpD6z6/DqCOerXlFmzI=; b=5FiyaxJ0Sqfx10fjUpZogdshBKxnIBiYSA8CyI3C1UzPGOHI9MyZoQru1V7HOZp2t3 VCUaC1jEqb6HX7r863hiFcL7GObTPvsMj1amXbQjBrn1NlbaL7Tg7zjBHtR3Rx8Oahb1 N5uDZlxuHEDHrPKEeJZH1bQIO7eNICHSd6UgJzGdOgaBnhqMVgVdUj3z7+wDeGPwKr0g FhxqG68Zt2pWWK5LwrXRfvAVwjPNz+mEUuxp+/UFaiUDv9thq1I1MrA3gfxqmkibmUJZ 7EjTc0dL/Ep8J2vb92NG094B6Kdh0Wm3CYMBIflB+cWGkZnU9HNn1KMlIqcpSge+WzPI 20rA== X-Gm-Message-State: AFqh2krOsNqVO8pWGiWqZdKWvjeH8BLmxAcFFFNvAI/SZEE6yAMK6s7k sdecMNDkevBGswtkq7Tnj5jKUA== X-Google-Smtp-Source: AMrXdXsx8jLbNuwIzpEmJpc94JGEd3SiLRYNoLiyE8CiARZx9DzavPmd2ownQUPZOBWdh1bJiJVcqg== X-Received: by 2002:a05:6a20:8f0d:b0:a3:6f97:e658 with SMTP id b13-20020a056a208f0d00b000a36f97e658mr50988661pzk.58.1674744354967; Thu, 26 Jan 2023 06:45:54 -0800 (PST) Received: from localhost.localdomain ([2405:201:c00a:a238:3cb1:2156:ef87:8af5]) by smtp.gmail.com with ESMTPSA id d197-20020a6336ce000000b0042988a04bfdsm823660pga.9.2023.01.26.06.45.41 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 26 Jan 2023 06:45:54 -0800 (PST) From: Jagan Teki To: Andrzej Hajda , Inki Dae , Marek Szyprowski , Seung-Woo Kim , Kyungmin Park , Frieder Schrempf , Tim Harvey , Adam Ford , Robert Foss , Laurent Pinchart , Marek Vasut Cc: Matteo Lisi , dri-devel@lists.freedesktop.org, linux-samsung-soc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, NXP Linux Team , linux-amarula , Jagan Teki Subject: [PATCH v12 06/18] drm: exynos: dsi: Add platform PLL_P (PMS_P) offset Date: Thu, 26 Jan 2023 20:14:15 +0530 Message-Id: <20230126144427.607098-7-jagan@amarulasolutions.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230126144427.607098-1-jagan@amarulasolutions.com> References: <20230126144427.607098-1-jagan@amarulasolutions.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-samsung-soc@vger.kernel.org Look like PLL PMS_P offset value varies between platforms that have Samsung DSIM IP. However, there is no clear evidence for it as both Exynos and i.MX 8M Mini Application Processor Reference Manual is still referring the PMS_P offset as 13. The offset 13 is not working for i.MX8M Mini SoCs but the downstream NXP sec-dsim.c driver is using offset 14 for i.MX8M Mini SoC platforms [1] [2]. PMS_P value set in sec_mipi_dsim_check_pll_out using PLLCTRL_SET_P() with offset 13 and then an additional offset of one bit added in sec_mipi_dsim_config_pll via PLLCTRL_SET_PMS(). Not sure whether it is reference manual documentation or something else but this patch trusts the downstream code and handle PLL_P offset via platform driver data so-that imx8mm driver data shall use pll_p_offset to 14. Similar to Mini the i.MX8M Nano/Plus also has P=14, unlike Exynos. [1] https://source.codeaurora.org/external/imx/linux-imx/tree/drivers/gpu/drm/bridge/sec-dsim.c?h=imx_5.4.47_2.2.0#n210 [2] https://source.codeaurora.org/external/imx/linux-imx/tree/drivers/gpu/drm/bridge/sec-dsim.c?h=imx_5.4.47_2.2.0#n211 Reviewed-by: Marek Vasut Signed-off-by: Frieder Schrempf Signed-off-by: Jagan Teki --- Changes for v12, v11, v10, v9: - none Changes for v8: - updated commit message for 8M Nano/Plus Changes for v7, v6: - none Changes for v5: - updated clear commit message Changes for v4, v3, v2: - none Changes for v1: - updated commit message - add downstream driver link drivers/gpu/drm/exynos/exynos_drm_dsi.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/exynos/exynos_drm_dsi.c b/drivers/gpu/drm/exynos/exynos_drm_dsi.c index 5918d31127aa..7a845badb1b2 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_dsi.c +++ b/drivers/gpu/drm/exynos/exynos_drm_dsi.c @@ -194,7 +194,7 @@ /* DSIM_PLLCTRL */ #define DSIM_FREQ_BAND(x) ((x) << 24) #define DSIM_PLL_EN (1 << 23) -#define DSIM_PLL_P(x) ((x) << 13) +#define DSIM_PLL_P(x, offset) ((x) << (offset)) #define DSIM_PLL_M(x) ((x) << 4) #define DSIM_PLL_S(x) ((x) << 1) @@ -263,6 +263,7 @@ struct exynos_dsi_driver_data { unsigned int max_freq; unsigned int wait_for_reset; unsigned int num_bits_resol; + unsigned int pll_p_offset; const unsigned int *reg_values; }; @@ -471,6 +472,7 @@ static const struct exynos_dsi_driver_data exynos3_dsi_driver_data = { .max_freq = 1000, .wait_for_reset = 1, .num_bits_resol = 11, + .pll_p_offset = 13, .reg_values = reg_values, }; @@ -483,6 +485,7 @@ static const struct exynos_dsi_driver_data exynos4_dsi_driver_data = { .max_freq = 1000, .wait_for_reset = 1, .num_bits_resol = 11, + .pll_p_offset = 13, .reg_values = reg_values, }; @@ -493,6 +496,7 @@ static const struct exynos_dsi_driver_data exynos5_dsi_driver_data = { .max_freq = 1000, .wait_for_reset = 1, .num_bits_resol = 11, + .pll_p_offset = 13, .reg_values = reg_values, }; @@ -504,6 +508,7 @@ static const struct exynos_dsi_driver_data exynos5433_dsi_driver_data = { .max_freq = 1500, .wait_for_reset = 0, .num_bits_resol = 12, + .pll_p_offset = 13, .reg_values = exynos5433_reg_values, }; @@ -515,6 +520,7 @@ static const struct exynos_dsi_driver_data exynos5422_dsi_driver_data = { .max_freq = 1500, .wait_for_reset = 1, .num_bits_resol = 12, + .pll_p_offset = 13, .reg_values = exynos5422_reg_values, }; @@ -628,7 +634,8 @@ static unsigned long exynos_dsi_set_pll(struct exynos_dsi *dsi, writel(driver_data->reg_values[PLL_TIMER], dsi->reg_base + driver_data->plltmr_reg); - reg = DSIM_PLL_EN | DSIM_PLL_P(p) | DSIM_PLL_M(m) | DSIM_PLL_S(s); + reg = DSIM_PLL_EN | DSIM_PLL_P(p, driver_data->pll_p_offset) | + DSIM_PLL_M(m) | DSIM_PLL_S(s); if (driver_data->has_freqband) { static const unsigned long freq_bands[] = { From patchwork Thu Jan 26 14:44:16 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jagan Teki X-Patchwork-Id: 13117269 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id A0A43C05027 for ; Thu, 26 Jan 2023 14:46:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229512AbjAZOqJ (ORCPT ); Thu, 26 Jan 2023 09:46:09 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53554 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229468AbjAZOqI (ORCPT ); Thu, 26 Jan 2023 09:46:08 -0500 Received: from mail-pl1-x635.google.com (mail-pl1-x635.google.com [IPv6:2607:f8b0:4864:20::635]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5138D3AB6 for ; Thu, 26 Jan 2023 06:46:07 -0800 (PST) Received: by mail-pl1-x635.google.com with SMTP id k13so2062740plg.0 for ; Thu, 26 Jan 2023 06:46:07 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amarulasolutions.com; s=google; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=4zNn/ghEcnKtGn+53b6UsMOLZnA5YwEKlrMufet3kNE=; b=atzopN0ZDC+BI5nKHYN4OwBbkm4JgSg3YVZ96drKPQZdTEEqXXfYiZvrP8TvHCAQdY H8o4k8h3Q+0ndCq2mYW//rhRLBtPqdmLfdAvpcFUHuye+WFGEBYm/QxeCaSddCOrG+yq QSRqMm823xecpsKd1XHNo/ZAA+YBE/3aLliY8= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=4zNn/ghEcnKtGn+53b6UsMOLZnA5YwEKlrMufet3kNE=; b=GNJ+O7GGa4JnJIfhSq51j2s9ICRYcXd8HKJ8utRLoIwGZVXxVSLQRMr9jYaxh7YLRC YZBWuNtK+9k820zKMp+NvI/DNe7GJ3hubTd4/ScANeixVfQFomW5xommkkE193B1GZVa L+y7ysn+LsExgmEmdp4aB2QET4ZGeQx87Ibv2NyiOcxnI2cW78UheRHKNDLbmhQ8DkeA rNm+e4op8ZP56OjbGHCmHh2clzjBVjhX1frtLFZIgdCRNP0KxT7G3igQVkoCdmWwwq0f rlxnUHI7XGfQa30JhsEq0gHUk0gbsxEmPpL0T06DgyX22VpdiB4t7mgQFVcAnrs+jcTZ LMFw== X-Gm-Message-State: AO0yUKVs6qretPzxW27IxqoIncXZ5V7h4epU4O7SF2j7kq/Ry+Wnyyzz 8l/MpniPWm/eQxxOOPJDtajQHA== X-Google-Smtp-Source: AK7set8Io5qmdz2swsuCOE/AuwpOuVEAOjAfCNA6n5caSkeGgOvBO1fvHuDgdxbJl7icMhr//TDlyw== X-Received: by 2002:a17:90b:4b83:b0:22b:eb43:a1b9 with SMTP id lr3-20020a17090b4b8300b0022beb43a1b9mr10827566pjb.41.1674744366758; Thu, 26 Jan 2023 06:46:06 -0800 (PST) Received: from localhost.localdomain ([2405:201:c00a:a238:3cb1:2156:ef87:8af5]) by smtp.gmail.com with ESMTPSA id d197-20020a6336ce000000b0042988a04bfdsm823660pga.9.2023.01.26.06.45.55 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 26 Jan 2023 06:46:06 -0800 (PST) From: Jagan Teki To: Andrzej Hajda , Inki Dae , Marek Szyprowski , Seung-Woo Kim , Kyungmin Park , Frieder Schrempf , Tim Harvey , Adam Ford , Robert Foss , Laurent Pinchart , Marek Vasut Cc: Matteo Lisi , dri-devel@lists.freedesktop.org, linux-samsung-soc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, NXP Linux Team , linux-amarula , Jagan Teki Subject: [PATCH v12 07/18] drm: exynos: dsi: Introduce hw_type platform data Date: Thu, 26 Jan 2023 20:14:16 +0530 Message-Id: <20230126144427.607098-8-jagan@amarulasolutions.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230126144427.607098-1-jagan@amarulasolutions.com> References: <20230126144427.607098-1-jagan@amarulasolutions.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-samsung-soc@vger.kernel.org Samsung MIPI DSIM controller is common DSI IP that can be used in various SoCs like Exynos, i.MX8M Mini/Nano/Plus. Add hw_type enum via platform_data so that accessing the different controller data between various platforms becomes easy and meaningful. Reviewed-by: Marek Vasut Reviewed-by: Frieder Schrempf Suggested-by: Marek Szyprowski Signed-off-by: Jagan Teki --- Changes for v12: - collect RB from Marek Changes for v11: - collect RB from Frieder - drop extra line Changes for v10: - split from previous series patch "drm: bridge: Generalize Exynos-DSI driver into a Samsung DSIM bridge" - update enum type names drivers/gpu/drm/exynos/exynos_drm_dsi.c | 83 ++++++++++++++++++++----- 1 file changed, 68 insertions(+), 15 deletions(-) diff --git a/drivers/gpu/drm/exynos/exynos_drm_dsi.c b/drivers/gpu/drm/exynos/exynos_drm_dsi.c index 7a845badb1b2..902bd46964cb 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_dsi.c +++ b/drivers/gpu/drm/exynos/exynos_drm_dsi.c @@ -254,6 +254,15 @@ struct exynos_dsi_transfer { #define DSIM_STATE_CMD_LPM BIT(2) #define DSIM_STATE_VIDOUT_AVAILABLE BIT(3) +enum exynos_dsi_type { + DSIM_TYPE_EXYNOS3250, + DSIM_TYPE_EXYNOS4210, + DSIM_TYPE_EXYNOS5410, + DSIM_TYPE_EXYNOS5422, + DSIM_TYPE_EXYNOS5433, + DSIM_TYPE_COUNT, +}; + struct exynos_dsi_driver_data { const unsigned int *reg_ofs; unsigned int plltmr_reg; @@ -267,6 +276,10 @@ struct exynos_dsi_driver_data { const unsigned int *reg_values; }; +struct exynos_dsi_plat_data { + enum exynos_dsi_type hw_type; +}; + struct exynos_dsi { struct drm_encoder encoder; struct mipi_dsi_host dsi_host; @@ -297,6 +310,7 @@ struct exynos_dsi { struct list_head transfer_list; const struct exynos_dsi_driver_data *driver_data; + const struct exynos_dsi_plat_data *plat_data; }; #define host_to_dsi(host) container_of(host, struct exynos_dsi, dsi_host) @@ -524,18 +538,13 @@ static const struct exynos_dsi_driver_data exynos5422_dsi_driver_data = { .reg_values = exynos5422_reg_values, }; -static const struct of_device_id exynos_dsi_of_match[] = { - { .compatible = "samsung,exynos3250-mipi-dsi", - .data = &exynos3_dsi_driver_data }, - { .compatible = "samsung,exynos4210-mipi-dsi", - .data = &exynos4_dsi_driver_data }, - { .compatible = "samsung,exynos5410-mipi-dsi", - .data = &exynos5_dsi_driver_data }, - { .compatible = "samsung,exynos5422-mipi-dsi", - .data = &exynos5422_dsi_driver_data }, - { .compatible = "samsung,exynos5433-mipi-dsi", - .data = &exynos5433_dsi_driver_data }, - { } +static const struct exynos_dsi_driver_data * +exynos_dsi_types[DSIM_TYPE_COUNT] = { + [DSIM_TYPE_EXYNOS3250] = &exynos3_dsi_driver_data, + [DSIM_TYPE_EXYNOS4210] = &exynos4_dsi_driver_data, + [DSIM_TYPE_EXYNOS5410] = &exynos5_dsi_driver_data, + [DSIM_TYPE_EXYNOS5422] = &exynos5422_dsi_driver_data, + [DSIM_TYPE_EXYNOS5433] = &exynos5433_dsi_driver_data, }; static void exynos_dsi_wait_for_reset(struct exynos_dsi *dsi) @@ -1468,8 +1477,6 @@ static const struct drm_bridge_funcs exynos_dsi_bridge_funcs = { .attach = exynos_dsi_attach, }; -MODULE_DEVICE_TABLE(of, exynos_dsi_of_match); - static int exynos_dsi_host_attach(struct mipi_dsi_host *host, struct mipi_dsi_device *device) { @@ -1659,7 +1666,8 @@ static int exynos_dsi_probe(struct platform_device *pdev) dsi->dsi_host.dev = dev; dsi->dev = dev; - dsi->driver_data = of_device_get_match_data(dev); + dsi->plat_data = of_device_get_match_data(dev); + dsi->driver_data = exynos_dsi_types[dsi->plat_data->hw_type]; dsi->supplies[0].supply = "vddcore"; dsi->supplies[1].supply = "vddio"; @@ -1817,6 +1825,51 @@ static const struct dev_pm_ops exynos_dsi_pm_ops = { pm_runtime_force_resume) }; +static const struct exynos_dsi_plat_data exynos3250_dsi_pdata = { + .hw_type = DSIM_TYPE_EXYNOS3250, +}; + +static const struct exynos_dsi_plat_data exynos4210_dsi_pdata = { + .hw_type = DSIM_TYPE_EXYNOS4210, +}; + +static const struct exynos_dsi_plat_data exynos5410_dsi_pdata = { + .hw_type = DSIM_TYPE_EXYNOS5410, +}; + +static const struct exynos_dsi_plat_data exynos5422_dsi_pdata = { + .hw_type = DSIM_TYPE_EXYNOS5422, +}; + +static const struct exynos_dsi_plat_data exynos5433_dsi_pdata = { + .hw_type = DSIM_TYPE_EXYNOS5433, +}; + +static const struct of_device_id exynos_dsi_of_match[] = { + { + .compatible = "samsung,exynos3250-mipi-dsi", + .data = &exynos3250_dsi_pdata, + }, + { + .compatible = "samsung,exynos4210-mipi-dsi", + .data = &exynos4210_dsi_pdata, + }, + { + .compatible = "samsung,exynos5410-mipi-dsi", + .data = &exynos5410_dsi_pdata, + }, + { + .compatible = "samsung,exynos5422-mipi-dsi", + .data = &exynos5422_dsi_pdata, + }, + { + .compatible = "samsung,exynos5433-mipi-dsi", + .data = &exynos5433_dsi_pdata, + }, + { /* sentinel. */ } +}; +MODULE_DEVICE_TABLE(of, exynos_dsi_of_match); + struct platform_driver dsi_driver = { .probe = exynos_dsi_probe, .remove = exynos_dsi_remove, From patchwork Thu Jan 26 14:44:17 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jagan Teki X-Patchwork-Id: 13117270 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 91C00C05027 for ; Thu, 26 Jan 2023 14:46:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230040AbjAZOqT (ORCPT ); Thu, 26 Jan 2023 09:46:19 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53594 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229468AbjAZOqS (ORCPT ); Thu, 26 Jan 2023 09:46:18 -0500 Received: from mail-pj1-x102b.google.com (mail-pj1-x102b.google.com [IPv6:2607:f8b0:4864:20::102b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 134723AB6 for ; Thu, 26 Jan 2023 06:46:17 -0800 (PST) Received: by mail-pj1-x102b.google.com with SMTP id nn18-20020a17090b38d200b0022bfb584987so1915278pjb.2 for ; Thu, 26 Jan 2023 06:46:17 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amarulasolutions.com; s=google; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=aUy6DNNvAiPX9eeWAOGTVXrnTQlr6Vuyr0HCYZSKb9Q=; b=dh6luB/qRaLS7gvu5TpqMAIr02u7Fjrfvnmrw61ngdnlECseug3s5QUtEDdLjizuC0 FR+VfCiuQG+SHFWpLtMBwHLvHmZLywc/Zc8GS0L6eCzYSU++s9wUmAGReJ1aKkq0YfoP CDKO3pyqimC1wU/0d/D2WFtaPGq2g9h8Atm/Y= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=aUy6DNNvAiPX9eeWAOGTVXrnTQlr6Vuyr0HCYZSKb9Q=; b=URkcN1uBP4VzKzKtlIZelxVrVGdFk3ZJ1TFGvSDukikrkvqTShD9oaf9J9LglMwcrp fWuvkjksq3LWKFNFFtxJwPhwuv93mU2bgWzLBhqlUEddvx0zPwip4fHQ+nP9cEawfAZf nlFemSexUdCCchaQQXaqwIya9RIiwHkAnAMuEQLl4xIw9yGnF37XWAKlxrrRxo2K95v2 kI47Vk/2yLhRRi7Gv9HEiunbmPdn3KuWr9vulzo4gf2Sv2lBPBe5DUhRVkjA18WWhHLM KrOm7Xslbe+higeT8uWZ1cv39jw1q3+dv1vvqDhqgZHG+iY37j+SclJG6Rrocroz67jI DzHg== X-Gm-Message-State: AO0yUKV3aMgIWHDa+FpSRWYWXo5Y2DlYd4ynXZ1qCvPo2hPG2jb9rpob fjgaCegNQRk9GfUTE6RQR8M0Rw== X-Google-Smtp-Source: AK7set/oBf1SiZHL0FSQHPOMS+OpOG2xNWQFQDQZQLMBlGqjs1UhUpN0TR0TN+Cn8irMMp6MRI/yGA== X-Received: by 2002:a05:6a20:a89c:b0:bb:b945:4865 with SMTP id ca28-20020a056a20a89c00b000bbb9454865mr6751320pzb.8.1674744376555; Thu, 26 Jan 2023 06:46:16 -0800 (PST) Received: from localhost.localdomain ([2405:201:c00a:a238:3cb1:2156:ef87:8af5]) by smtp.gmail.com with ESMTPSA id d197-20020a6336ce000000b0042988a04bfdsm823660pga.9.2023.01.26.06.46.07 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 26 Jan 2023 06:46:15 -0800 (PST) From: Jagan Teki To: Andrzej Hajda , Inki Dae , Marek Szyprowski , Seung-Woo Kim , Kyungmin Park , Frieder Schrempf , Tim Harvey , Adam Ford , Robert Foss , Laurent Pinchart , Marek Vasut Cc: Matteo Lisi , dri-devel@lists.freedesktop.org, linux-samsung-soc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, NXP Linux Team , linux-amarula , Jagan Teki Subject: [PATCH v12 08/18] drm: exynos: dsi: Handle proper host initialization Date: Thu, 26 Jan 2023 20:14:17 +0530 Message-Id: <20230126144427.607098-9-jagan@amarulasolutions.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230126144427.607098-1-jagan@amarulasolutions.com> References: <20230126144427.607098-1-jagan@amarulasolutions.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-samsung-soc@vger.kernel.org From: Marek Szyprowski Host transfer() in the DSI master will invoke only when the DSI commands are sent from DSI devices like DSI Panel or DSI bridges and this host the transfer wouldn't invoke for I2C-based-DSI bridge drivers. Handling DSI host initialization in transfer calls misses the controller setup for I2C configured DSI bridges. This patch updates the DSI host initialization by calling host to init from bridge pre_enable as the bridge pre_enable API is invoked by core as it is common across all classes of DSI device drivers. The host init during pre_enable is conditional and not invoked for Exynos as existing downstream drm panels and bridges in Exynos are expecting the host initialization during DSI transfer. Reviewed-by: Marek Vasut Reviewed-by: Frieder Schrempf Signed-off-by: Marek Szyprowski Signed-off-by: Jagan Teki --- Changes for v12: - collect RB from Marek Changes for v11: - collect RB from Frieder Changes for v10: - update the to simple logic to handle all platforms Changs for v9 - v8: - none Changes for v2: - check initialized state in samsung_dsim_init Changes for v1: - keep DSI init in host transfer drivers/gpu/drm/exynos/exynos_drm_dsi.c | 27 +++++++++++++++++++------ 1 file changed, 21 insertions(+), 6 deletions(-) diff --git a/drivers/gpu/drm/exynos/exynos_drm_dsi.c b/drivers/gpu/drm/exynos/exynos_drm_dsi.c index 902bd46964cb..d4a976d86f08 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_dsi.c +++ b/drivers/gpu/drm/exynos/exynos_drm_dsi.c @@ -254,6 +254,9 @@ struct exynos_dsi_transfer { #define DSIM_STATE_CMD_LPM BIT(2) #define DSIM_STATE_VIDOUT_AVAILABLE BIT(3) +#define exynos_dsi_hw_is_exynos(hw) \ + ((hw) >= DSIM_TYPE_EXYNOS3250 && (hw) <= DSIM_TYPE_EXYNOS5433) + enum exynos_dsi_type { DSIM_TYPE_EXYNOS3250, DSIM_TYPE_EXYNOS4210, @@ -1343,6 +1346,9 @@ static int exynos_dsi_init(struct exynos_dsi *dsi) { const struct exynos_dsi_driver_data *driver_data = dsi->driver_data; + if (dsi->state & DSIM_STATE_INITIALIZED) + return 0; + exynos_dsi_reset(dsi); exynos_dsi_enable_irq(dsi); @@ -1355,6 +1361,8 @@ static int exynos_dsi_init(struct exynos_dsi *dsi) exynos_dsi_set_phy_ctrl(dsi); exynos_dsi_init_link(dsi); + dsi->state |= DSIM_STATE_INITIALIZED; + return 0; } @@ -1410,6 +1418,16 @@ static void exynos_dsi_atomic_pre_enable(struct drm_bridge *bridge, } dsi->state |= DSIM_STATE_ENABLED; + + /* + * For Exynos-DSIM the downstream bridge, or panel are expecting + * the host initialization during DSI transfer. + */ + if (!exynos_dsi_hw_is_exynos(dsi->plat_data->hw_type)) { + ret = exynos_dsi_init(dsi); + if (ret) + return; + } } static void exynos_dsi_atomic_enable(struct drm_bridge *bridge, @@ -1556,12 +1574,9 @@ static ssize_t exynos_dsi_host_transfer(struct mipi_dsi_host *host, if (!(dsi->state & DSIM_STATE_ENABLED)) return -EINVAL; - if (!(dsi->state & DSIM_STATE_INITIALIZED)) { - ret = exynos_dsi_init(dsi); - if (ret) - return ret; - dsi->state |= DSIM_STATE_INITIALIZED; - } + ret = exynos_dsi_init(dsi); + if (ret) + return ret; ret = mipi_dsi_create_packet(&xfer.packet, msg); if (ret < 0) From patchwork Thu Jan 26 14:44:18 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jagan Teki X-Patchwork-Id: 13117271 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4BAD1C61D97 for ; Thu, 26 Jan 2023 14:46:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229468AbjAZOqd (ORCPT ); Thu, 26 Jan 2023 09:46:33 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53620 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229446AbjAZOqd (ORCPT ); Thu, 26 Jan 2023 09:46:33 -0500 Received: from mail-pj1-x1032.google.com (mail-pj1-x1032.google.com [IPv6:2607:f8b0:4864:20::1032]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 14E4B3AB6 for ; Thu, 26 Jan 2023 06:46:32 -0800 (PST) Received: by mail-pj1-x1032.google.com with SMTP id nm12-20020a17090b19cc00b0022c2155cc0bso1894234pjb.4 for ; Thu, 26 Jan 2023 06:46:32 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amarulasolutions.com; s=google; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=c4Zt0Fx4HYrC+EA7BQu40bK0DS9Q1S4wdUAYAMr7AkA=; b=nnNSrk9XqUihNoOrwl2DdVzuRJWqTChqyGbY5xa2qBcsl5d50b8RWOz3tniUMgO/Cb VjCZg2G8yiCR8ZnRs1tKHJQ8ESx7kqhueMA8hty2BukeYVRYG/GGJaRAua8O9p0nEQyQ 91BWjpLUkhVs9XdkS0CZkpZyF87+za9rYUFbE= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=c4Zt0Fx4HYrC+EA7BQu40bK0DS9Q1S4wdUAYAMr7AkA=; b=sXPdAqp8E3V8iHiDxfkLSJDiz3kS8i6WDp7hKY6Vgdo0N7euF9Wd+8fyrki7S3EA/d xcwArEBwnOvr/UTmlflzWooJRAHWoYzcxBVaEeAgM5STxF6eObgRq5WjYwhbnSsNZfa+ lGrvuUHTNOU46Gq6jPAIsTzIlyxSo6w8yPGO/GDwikWKdeMf+XlTE4HjqyDf9sXERipt qZAu2+z5lq/mhDqygXC3KtwlMjyoiS/Ub+hEHoQo8ABTPUb0Y1PXLNZY/onmW1kKKOcR 2+GBH6PjqkJOEHAVF4/hg3XKv72bfCO8lP2m9aWZE6n2wsq7XphYsotUMS4PHae15Ljv cqzw== X-Gm-Message-State: AO0yUKXMFrb7/it2BuptFN2AbZohAssAxhxFqMp7CGa+vgsmOvCwUSPL +iLM3N9zo94D5ne2dNMxhZHDZA== X-Google-Smtp-Source: AK7set9JVEd32JABr+ccMpKxRzgjywtwItuQOmzFSzKKuKt0J618iQ09CnYCm2akYidtK6cJVxOn/w== X-Received: by 2002:a05:6a20:ce49:b0:bb:9aee:f6d3 with SMTP id id9-20020a056a20ce4900b000bb9aeef6d3mr10489096pzb.46.1674744391517; Thu, 26 Jan 2023 06:46:31 -0800 (PST) Received: from localhost.localdomain ([2405:201:c00a:a238:3cb1:2156:ef87:8af5]) by smtp.gmail.com with ESMTPSA id d197-20020a6336ce000000b0042988a04bfdsm823660pga.9.2023.01.26.06.46.20 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 26 Jan 2023 06:46:30 -0800 (PST) From: Jagan Teki To: Andrzej Hajda , Inki Dae , Marek Szyprowski , Seung-Woo Kim , Kyungmin Park , Frieder Schrempf , Tim Harvey , Adam Ford , Robert Foss , Laurent Pinchart , Marek Vasut Cc: Matteo Lisi , dri-devel@lists.freedesktop.org, linux-samsung-soc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, NXP Linux Team , linux-amarula , Jagan Teki Subject: [PATCH v12 09/18] drm: exynos: dsi: Add atomic check Date: Thu, 26 Jan 2023 20:14:18 +0530 Message-Id: <20230126144427.607098-10-jagan@amarulasolutions.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230126144427.607098-1-jagan@amarulasolutions.com> References: <20230126144427.607098-1-jagan@amarulasolutions.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-samsung-soc@vger.kernel.org Look like an explicit fixing up of mode_flags is required for DSIM IP present in i.MX8M Mini/Nano SoCs. At least the LCDIF + DSIM needs active low sync polarities in order to correlate the correct sync flags of the surrounding components in the chain to make sure the whole pipeline can work properly. On the other hand the i.MX 8M Mini Applications Processor Reference Manual, Rev. 3, 11/2020 says. "13.6.3.5.2 RGB interface Vsync, Hsync, and VDEN are active high signals." i.MX 8M Mini Applications Processor Reference Manual Rev. 3, 11/2020 3.6.3.5.2 RGB interface i.MX 8M Nano Applications Processor Reference Manual Rev. 2, 07/2022 13.6.2.7.2 RGB interface both claim "Vsync, Hsync, and VDEN are active high signals.", the LCDIF must generate inverted HS/VS/DE signals, i.e. active LOW. No clear evidence about whether it can be documentation issues or something, so added proper comments on the code. Comments are suggested by Marek Vasut. Reviewed-by: Marek Vasut Reviewed-by: Frieder Schrempf Signed-off-by: Jagan Teki --- Changes for v12: - collect RB from Marek Changes for v11: - collect RB from Frieder - fix commit message Changes for v10, v9: - none Changes for v8: - update the comments about sync signals polarities - added clear commit message by including i.MX8M Nano details Changes for v7: - fix the hw_type checking logic Changes for v6: - none Changes for v5: - rebase based new bridge changes [mszyprow] - remove DSIM_QUIRK_FIXUP_SYNC_POL - add hw_type check for sync polarities change. Changes for v4: - none Changes for v3: - add DSIM_QUIRK_FIXUP_SYNC_POL to handle mode_flasg fixup Changes for v2: - none Changes for v1: - fix mode flags in atomic_check instead of mode_fixup drivers/gpu/drm/exynos/exynos_drm_dsi.c | 28 +++++++++++++++++++++++++ 1 file changed, 28 insertions(+) diff --git a/drivers/gpu/drm/exynos/exynos_drm_dsi.c b/drivers/gpu/drm/exynos/exynos_drm_dsi.c index d4a976d86f08..d8958838ab7b 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_dsi.c +++ b/drivers/gpu/drm/exynos/exynos_drm_dsi.c @@ -263,6 +263,7 @@ enum exynos_dsi_type { DSIM_TYPE_EXYNOS5410, DSIM_TYPE_EXYNOS5422, DSIM_TYPE_EXYNOS5433, + DSIM_TYPE_IMX8MM, DSIM_TYPE_COUNT, }; @@ -1465,6 +1466,32 @@ static void exynos_dsi_atomic_post_disable(struct drm_bridge *bridge, pm_runtime_put_sync(dsi->dev); } +static int exynos_dsi_atomic_check(struct drm_bridge *bridge, + struct drm_bridge_state *bridge_state, + struct drm_crtc_state *crtc_state, + struct drm_connector_state *conn_state) +{ + struct exynos_dsi *dsi = bridge_to_dsi(bridge); + struct drm_display_mode *adjusted_mode = &crtc_state->adjusted_mode; + + /* + * The i.MX8M Mini/Nano glue logic between LCDIF and DSIM + * inverts HS/VS/DE sync signals polarity, therefore, while + * i.MX 8M Mini Applications Processor Reference Manual Rev. 3, 11/2020 + * 13.6.3.5.2 RGB interface + * i.MX 8M Nano Applications Processor Reference Manual Rev. 2, 07/2022 + * 13.6.2.7.2 RGB interface + * both claim "Vsync, Hsync, and VDEN are active high signals.", the + * LCDIF must generate inverted HS/VS/DE signals, i.e. active LOW. + */ + if (dsi->plat_data->hw_type == DSIM_TYPE_IMX8MM) { + adjusted_mode->flags |= (DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC); + adjusted_mode->flags &= ~(DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC); + } + + return 0; +} + static void exynos_dsi_mode_set(struct drm_bridge *bridge, const struct drm_display_mode *mode, const struct drm_display_mode *adjusted_mode) @@ -1487,6 +1514,7 @@ static const struct drm_bridge_funcs exynos_dsi_bridge_funcs = { .atomic_duplicate_state = drm_atomic_helper_bridge_duplicate_state, .atomic_destroy_state = drm_atomic_helper_bridge_destroy_state, .atomic_reset = drm_atomic_helper_bridge_reset, + .atomic_check = exynos_dsi_atomic_check, .atomic_pre_enable = exynos_dsi_atomic_pre_enable, .atomic_enable = exynos_dsi_atomic_enable, .atomic_disable = exynos_dsi_atomic_disable, From patchwork Thu Jan 26 14:44:19 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jagan Teki X-Patchwork-Id: 13117272 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 09450C54E94 for ; Thu, 26 Jan 2023 14:46:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230203AbjAZOqw (ORCPT ); Thu, 26 Jan 2023 09:46:52 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53686 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230366AbjAZOqs (ORCPT ); Thu, 26 Jan 2023 09:46:48 -0500 Received: from mail-pj1-x102a.google.com (mail-pj1-x102a.google.com [IPv6:2607:f8b0:4864:20::102a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 94FFD1205F for ; Thu, 26 Jan 2023 06:46:45 -0800 (PST) Received: by mail-pj1-x102a.google.com with SMTP id lp10so1714357pjb.4 for ; Thu, 26 Jan 2023 06:46:45 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amarulasolutions.com; s=google; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=CCVYG25W1pHQNxSfAOiHmaNQidizxzXKd6AiL4XAwms=; b=J5r6PKryB1ljLmvqcvclVHC92p0hV+3a4T0wmynl5mHdjZSWBaxln6B+q2Q+RNzYmc uHsB87C/M9RCMhUC5jRCjRXQE6QFfrjK+1qEpuMXkJbZqgbgE85Rlr0YBNUdI9hRilyz vhIEGJ0oWoB9vqhtmRgisKViEnW8Ql14VL9nM= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=CCVYG25W1pHQNxSfAOiHmaNQidizxzXKd6AiL4XAwms=; b=L5iq6UpRIYZxiwodNwBhVTkQmjk2PpGB9m7zoi5xR2p/ypNbzCh1sGXaI8EsX4Sr1h SN5Se2pUbyubZsP4TB5z3FfC2K02nLmZ1Q/Pi3doX8N0GDfCceCv+ysVY1XgIVtcV5JY 606m6ZQZCI8Yq8sy5+SbYshWaZVWn33/qnA+rv8oh/saktwYqfge32u0HqkmOXXIz6W6 zaXcabZzdfmKIlVZ2Bi0gBxVZqrTl6bZvIYbFYVBp1YFVUCTOKCddbt+wE6p5i0dJokJ 2s1fHpLMWF4dCUzhk1jM4iBEfrU+BCtiNX12GmX/t2Ad6XwvwgMA+tnM7yZIfxftKW4R MOKw== X-Gm-Message-State: AFqh2kok1Ce4CzZYxB8gkaPFflmZEOnefuAU5IRfuNk65flM5xVwBYlu DF/aRYW79b45Bq/yq54XT6J3Tw== X-Google-Smtp-Source: AMrXdXtJ5fZLKtk38j0oZHe+QIkIVQDfMF/e1R47vrpGkb7LfA21PmqqZvKVYx0jfa7t4ZjIOLqVfQ== X-Received: by 2002:a05:6a20:3942:b0:b8:50fd:fd1a with SMTP id r2-20020a056a20394200b000b850fdfd1amr50376881pzg.19.1674744405018; Thu, 26 Jan 2023 06:46:45 -0800 (PST) Received: from localhost.localdomain ([2405:201:c00a:a238:3cb1:2156:ef87:8af5]) by smtp.gmail.com with ESMTPSA id d197-20020a6336ce000000b0042988a04bfdsm823660pga.9.2023.01.26.06.46.32 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 26 Jan 2023 06:46:44 -0800 (PST) From: Jagan Teki To: Andrzej Hajda , Inki Dae , Marek Szyprowski , Seung-Woo Kim , Kyungmin Park , Frieder Schrempf , Tim Harvey , Adam Ford , Robert Foss , Laurent Pinchart , Marek Vasut Cc: Matteo Lisi , dri-devel@lists.freedesktop.org, linux-samsung-soc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, NXP Linux Team , linux-amarula , Jagan Teki Subject: [PATCH v12 10/18] drm: exynos: dsi: Add input_bus_flags Date: Thu, 26 Jan 2023 20:14:19 +0530 Message-Id: <20230126144427.607098-11-jagan@amarulasolutions.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230126144427.607098-1-jagan@amarulasolutions.com> References: <20230126144427.607098-1-jagan@amarulasolutions.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-samsung-soc@vger.kernel.org LCDIF-DSIM glue logic inverts the HS/VS/DE signals and expecting the i.MX8M Mini/Nano DSI host to add additional Data Enable signal active low (DE_LOW). This makes the valid data transfer on each horizontal line. So, add additional bus flags DE_LOW setting via input_bus_flags for i.MX8M Mini/Nano platforms. Reviewed-by: Marek Vasut Reviewed-by: Frieder Schrempf Suggested-by: Marek Vasut Signed-off-by: Jagan Teki --- Changes for v12: - collect RB from Marek Changes for v11: - collect RB from Frieder Changes for v10, v9: - none Changes for v8: - add DE_LOW for i.MX8M Mini/Nano platforms. Changes for v7, v6: - none Changes for v5: - rebased based on updated bridge changes Changes for v4 - v1: - none drivers/gpu/drm/exynos/exynos_drm_dsi.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/gpu/drm/exynos/exynos_drm_dsi.c b/drivers/gpu/drm/exynos/exynos_drm_dsi.c index d8958838ab7b..5518d92c8455 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_dsi.c +++ b/drivers/gpu/drm/exynos/exynos_drm_dsi.c @@ -1691,6 +1691,10 @@ static const struct component_ops exynos_dsi_component_ops = { .unbind = exynos_dsi_unbind, }; +static const struct drm_bridge_timings dsim_bridge_timings_de_low = { + .input_bus_flags = DRM_BUS_FLAG_DE_LOW, +}; + static int exynos_dsi_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; @@ -1777,6 +1781,10 @@ static int exynos_dsi_probe(struct platform_device *pdev) dsi->bridge.type = DRM_MODE_CONNECTOR_DSI; dsi->bridge.pre_enable_prev_first = true; + /* DE_LOW: i.MX8M Mini/Nano LCDIF-DSIM glue logic inverts HS/VS/DE */ + if (dsi->plat_data->hw_type == DSIM_TYPE_IMX8MM) + dsi->bridge.timings = &dsim_bridge_timings_de_low; + ret = component_add(dev, &exynos_dsi_component_ops); if (ret) goto err_disable_runtime; From patchwork Thu Jan 26 14:44:20 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jagan Teki X-Patchwork-Id: 13117273 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8F188C61DB3 for ; Thu, 26 Jan 2023 14:47:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229446AbjAZOrB (ORCPT ); Thu, 26 Jan 2023 09:47:01 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53708 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230334AbjAZOq6 (ORCPT ); Thu, 26 Jan 2023 09:46:58 -0500 Received: from mail-pj1-x1033.google.com (mail-pj1-x1033.google.com [IPv6:2607:f8b0:4864:20::1033]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id F312440D9 for ; Thu, 26 Jan 2023 06:46:57 -0800 (PST) Received: by mail-pj1-x1033.google.com with SMTP id nn18-20020a17090b38d200b0022bfb584987so1917614pjb.2 for ; Thu, 26 Jan 2023 06:46:57 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amarulasolutions.com; s=google; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=FIzwHk3KlOuotRd1vtFiT01NZHo9fUxqS1kmRS+uxAM=; b=jw5dG3mm8odtdyRm5Uo9QEAIU1wwhd6wFLqTbk27sdst8UXiLXs2nEBoe8I0sM9Lfi SsPkVrC73Lj0LjFKEcAzCo1hfuWhGr57ChLPoMIuQIHhzTz3SjCFp69+4g3F0ypISUjE V3xjmWFKINF/27yN4fqYWreCZVvjit1dWaS+k= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=FIzwHk3KlOuotRd1vtFiT01NZHo9fUxqS1kmRS+uxAM=; b=g/dY1dUn4C5oDcAkeRf6CoOY1MMT//qHGw/ME40siAsXw5QkPY6V4lCMIs0zhloVT/ JzKsOeF4agNWBEvmnYQiY5nW4pCRxep/PRzi2nZCt3D5kPZXptDT3rH61TCsslV3SVbl MLqvXDxgaGIScR6/p7jdLmNADY7Wqfd03RZTPCbz1Kg6ivET6J26qtIAzJQVM6+2iboh BRX6hczbbkmSjogMM3ULDNBwtIyCeGHTmbf31b+bXBVdwgET8bDQoFa8u0byyRx7V/qr o4q+41Kzuia6LrOzXmpYh3SZml6evQmOHvIxmcIHPlZl1onmvjahLWwKKaZzjjqYYDXf wRPw== X-Gm-Message-State: AO0yUKX5AFj1SVGAh08/KW1Z/cWQtlkQxJtORK9XTyOvRIn2uubJ7uNe H/RXn6ffBbDydryoSY89a7de3w== X-Google-Smtp-Source: AK7set+WxXq5opVnH938Rg5wF9L4yKLutOFDJAC1/CzLyA+UxZairVq9vwV1Lkoz3tfXgUbBGp93FQ== X-Received: by 2002:a17:90b:4a4f:b0:22c:4e1:94f with SMTP id lb15-20020a17090b4a4f00b0022c04e1094fmr6906913pjb.13.1674744417491; Thu, 26 Jan 2023 06:46:57 -0800 (PST) Received: from localhost.localdomain ([2405:201:c00a:a238:3cb1:2156:ef87:8af5]) by smtp.gmail.com with ESMTPSA id d197-20020a6336ce000000b0042988a04bfdsm823660pga.9.2023.01.26.06.46.45 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 26 Jan 2023 06:46:57 -0800 (PST) From: Jagan Teki To: Andrzej Hajda , Inki Dae , Marek Szyprowski , Seung-Woo Kim , Kyungmin Park , Frieder Schrempf , Tim Harvey , Adam Ford , Robert Foss , Laurent Pinchart , Marek Vasut Cc: Matteo Lisi , dri-devel@lists.freedesktop.org, linux-samsung-soc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, NXP Linux Team , linux-amarula , Jagan Teki Subject: [PATCH v12 11/18] drm: exynos: dsi: Add atomic_get_input_bus_fmts Date: Thu, 26 Jan 2023 20:14:20 +0530 Message-Id: <20230126144427.607098-12-jagan@amarulasolutions.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230126144427.607098-1-jagan@amarulasolutions.com> References: <20230126144427.607098-1-jagan@amarulasolutions.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-samsung-soc@vger.kernel.org Finding the right input bus format throughout the pipeline is hard so add atomic_get_input_bus_fmts callback and initialize with the proper input format from list of supported output formats. This format can be used in pipeline for negotiating bus format between the DSI-end of this bridge and the other component closer to pipeline components. List of Pixel formats are taken from, AN13573 i.MX 8/RT MIPI DSI/CSI-2, Rev. 0, 21 March 2022 3.7.4 Pixel formats Table 14. DSI pixel packing formats Reviewed-by: Frieder Schrempf Tested-by: Marek Szyprowski Signed-off-by: Jagan Teki Reviewed-by: Marek Vasut --- Changes for v12: - update the logic suggested by Marek Changes for v11: - collect RB from Frieder - drop extra line Changes for v10: - none Changes for v9: - added MEDIA_BUS_FMT_FIXED - return MEDIA_BUS_FMT_RGB888_1X24 output_fmt if supported output_fmt list is unsupported. - added MEDIA_BUS_FMT_YUYV10_1X20, MEDIA_BUS_FMT_YUYV12_1X24 Changes for v8: - added pixel formats supported by NXP AN13573 i.MX 8/RT MIPI DSI/CSI-2 Changes for v7 - v4: - none Changes for v3: - include media-bus-format.h Changes for v2: - none Changes for v1: - new patch drivers/gpu/drm/exynos/exynos_drm_dsi.c | 62 +++++++++++++++++++++++++ 1 file changed, 62 insertions(+) diff --git a/drivers/gpu/drm/exynos/exynos_drm_dsi.c b/drivers/gpu/drm/exynos/exynos_drm_dsi.c index 5518d92c8455..9459c138d0e0 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_dsi.c +++ b/drivers/gpu/drm/exynos/exynos_drm_dsi.c @@ -12,6 +12,7 @@ #include #include #include +#include #include #include #include @@ -1466,6 +1467,66 @@ static void exynos_dsi_atomic_post_disable(struct drm_bridge *bridge, pm_runtime_put_sync(dsi->dev); } +/* + * This pixel output formats list referenced from, + * AN13573 i.MX 8/RT MIPI DSI/CSI-2, Rev. 0, 21 March 2022 + * 3.7.4 Pixel formats + * Table 14. DSI pixel packing formats + */ +static const u32 exynos_dsi_pixel_output_fmts[] = { + MEDIA_BUS_FMT_YUYV10_1X20, + MEDIA_BUS_FMT_YUYV12_1X24, + MEDIA_BUS_FMT_UYVY8_1X16, + MEDIA_BUS_FMT_RGB101010_1X30, + MEDIA_BUS_FMT_RGB121212_1X36, + MEDIA_BUS_FMT_RGB565_1X16, + MEDIA_BUS_FMT_RGB666_1X18, + MEDIA_BUS_FMT_RGB888_1X24, +}; + +static bool exynos_dsi_pixel_output_fmt_supported(u32 fmt) +{ + int i; + + if (fmt == MEDIA_BUS_FMT_FIXED) + return false; + + for (i = 0; i < ARRAY_SIZE(exynos_dsi_pixel_output_fmts); i++) { + if (exynos_dsi_pixel_output_fmts[i] == fmt) + return true; + } + + return false; +} + +static u32 * +exynos_dsi_atomic_get_input_bus_fmts(struct drm_bridge *bridge, + struct drm_bridge_state *bridge_state, + struct drm_crtc_state *crtc_state, + struct drm_connector_state *conn_state, + u32 output_fmt, + unsigned int *num_input_fmts) +{ + u32 *input_fmts; + + input_fmts = kmalloc(sizeof(*input_fmts), GFP_KERNEL); + if (!input_fmts) + return NULL; + + if (!exynos_dsi_pixel_output_fmt_supported(output_fmt)) + /* + * Some bridge/display drivers are still not able to pass the + * correct format, so handle those pipelines by falling back + * to the default format till the supported formats finalized. + */ + output_fmt = MEDIA_BUS_FMT_RGB888_1X24; + + input_fmts[0] = output_fmt; + *num_input_fmts = 1; + + return input_fmts; +} + static int exynos_dsi_atomic_check(struct drm_bridge *bridge, struct drm_bridge_state *bridge_state, struct drm_crtc_state *crtc_state, @@ -1514,6 +1575,7 @@ static const struct drm_bridge_funcs exynos_dsi_bridge_funcs = { .atomic_duplicate_state = drm_atomic_helper_bridge_duplicate_state, .atomic_destroy_state = drm_atomic_helper_bridge_destroy_state, .atomic_reset = drm_atomic_helper_bridge_reset, + .atomic_get_input_bus_fmts = exynos_dsi_atomic_get_input_bus_fmts, .atomic_check = exynos_dsi_atomic_check, .atomic_pre_enable = exynos_dsi_atomic_pre_enable, .atomic_enable = exynos_dsi_atomic_enable, From patchwork Thu Jan 26 14:44:21 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Jagan Teki X-Patchwork-Id: 13117274 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4CB59C61D97 for ; Thu, 26 Jan 2023 14:47:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231766AbjAZOrQ (ORCPT ); Thu, 26 Jan 2023 09:47:16 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53974 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231800AbjAZOrN (ORCPT ); Thu, 26 Jan 2023 09:47:13 -0500 Received: from mail-pj1-x102b.google.com (mail-pj1-x102b.google.com [IPv6:2607:f8b0:4864:20::102b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1B84168103 for ; Thu, 26 Jan 2023 06:47:10 -0800 (PST) Received: by mail-pj1-x102b.google.com with SMTP id e8-20020a17090a9a8800b0022c387f0f93so414326pjp.3 for ; Thu, 26 Jan 2023 06:47:10 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amarulasolutions.com; s=google; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=yo9iZG7thbeh/Q27IofLDMHgJmskqvn2YbJQaVoxMqQ=; b=CUCJGPZqVeTNxZhmD8kbxeX54VEw10wH07dpyKYcsRZGhiKPYPaJ3tTUPJmo5eUQxJ QuJivUx8h+omIpIPCX2ZP0c7rr2N8m7qBdbDflnBP0FKWp0/aISKcQ4buviXQtpXp2HE s7/QtKSGhE5X8z1WNrQwfn5M+89JuNiZROfXQ= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=yo9iZG7thbeh/Q27IofLDMHgJmskqvn2YbJQaVoxMqQ=; b=q2F3kcsOCMc5hljJTPsG46NtBBVtLaCXmBkt9WXmR6rxdVfmh99lWYVEozqKI64CNr zMgeCuf5yP395insnI780VplthEKnUUVtSewZOJwds1KvCj1QAMGy+3jS3rxxTqWRjEw uXn5T5k4G8i1cjlZ+SOysQhnyYZBlgPjKVnCMbd3Set4IRlMXSHxI3USGIAfP6w0Olst O+V3wjARcf+BcKA+vFM27PrX4Hk5va57eQLo509GJ/YfWYExthLhnBa9/waPvBoUTOWP AeuMjavgnHoqgyRIej0R6+yc+g8vb/07ZFfGlqFxWNMexzYD7owGdmmnyMycsaSJEqGQ xDuA== X-Gm-Message-State: AFqh2koCYp7QAskbaE22n6ci2OcFy4oA+EJH1EMXTb+sexsbLNnEc913 ni2GQs+NP+AgdvxMIT2xEfQ+PQ== X-Google-Smtp-Source: AMrXdXsGaDL5rMpUBoKG3U8u8dTLn/jnhIssGrjijm66UICzJGvcAWDkbJy2ZF+O5rTZxT4vKqWLYg== X-Received: by 2002:a17:90b:4c43:b0:22b:b392:96be with SMTP id np3-20020a17090b4c4300b0022bb39296bemr23651311pjb.6.1674744429421; Thu, 26 Jan 2023 06:47:09 -0800 (PST) Received: from localhost.localdomain ([2405:201:c00a:a238:3cb1:2156:ef87:8af5]) by smtp.gmail.com with ESMTPSA id d197-20020a6336ce000000b0042988a04bfdsm823660pga.9.2023.01.26.06.46.58 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 26 Jan 2023 06:47:08 -0800 (PST) From: Jagan Teki To: Andrzej Hajda , Inki Dae , Marek Szyprowski , Seung-Woo Kim , Kyungmin Park , Frieder Schrempf , Tim Harvey , Adam Ford , Robert Foss , Laurent Pinchart , Marek Vasut Cc: Matteo Lisi , dri-devel@lists.freedesktop.org, linux-samsung-soc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, NXP Linux Team , linux-amarula , Jagan Teki Subject: [PATCH v12 12/18] drm: exynos: dsi: Consolidate component and bridge Date: Thu, 26 Jan 2023 20:14:21 +0530 Message-Id: <20230126144427.607098-13-jagan@amarulasolutions.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230126144427.607098-1-jagan@amarulasolutions.com> References: <20230126144427.607098-1-jagan@amarulasolutions.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-samsung-soc@vger.kernel.org DSI host registration, attach and detach operations are quite different for the component and bridge-based DRM drivers.  Supporting generic bridge driver to use both component and bridge based DRM drivers can be tricky and would require additional host related operation hooks. Add host operation hooks for registering and unregistering Exynos and generic drivers, where Exynos hooks are used in existing Exynos component based DRM drivers and generic hooks are used in i.MX8M bridge based DRM drivers.  Add host attach and detach operation hooks for Exynos component DRM drivers and those get invoked while DSI core host attach and detach gets called. Reviewed-by: Marek Vasut Signed-off-by: Marek Szyprowski Signed-off-by: Jagan Teki --- Changes for v12: - fix unneeded decleration - collect RB from Marek Changes for v11: - none Changes for v10: - split from previous series patch "drm: bridge: Generalize Exynos-DSI driver into a Samsung DSIM bridge" drivers/gpu/drm/exynos/exynos_drm_dsi.c | 169 +++++++++++++++++++----- 1 file changed, 134 insertions(+), 35 deletions(-) diff --git a/drivers/gpu/drm/exynos/exynos_drm_dsi.c b/drivers/gpu/drm/exynos/exynos_drm_dsi.c index 9459c138d0e0..488fae218205 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_dsi.c +++ b/drivers/gpu/drm/exynos/exynos_drm_dsi.c @@ -283,10 +283,10 @@ struct exynos_dsi_driver_data { struct exynos_dsi_plat_data { enum exynos_dsi_type hw_type; + const struct exynos_dsim_host_ops *host_ops; }; struct exynos_dsi { - struct drm_encoder encoder; struct mipi_dsi_host dsi_host; struct drm_bridge bridge; struct drm_bridge *out_bridge; @@ -316,6 +316,19 @@ struct exynos_dsi { const struct exynos_dsi_driver_data *driver_data; const struct exynos_dsi_plat_data *plat_data; + + void *priv; +}; + +struct exynos_dsim_host_ops { + int (*register_host)(struct exynos_dsi *dsim); + void (*unregister_host)(struct exynos_dsi *dsim); + int (*attach)(struct exynos_dsi *dsim, struct mipi_dsi_device *device); + int (*detach)(struct exynos_dsi *dsim, struct mipi_dsi_device *device); +}; + +struct exynos_dsi_enc { + struct drm_encoder encoder; }; #define host_to_dsi(host) container_of(host, struct exynos_dsi, dsi_host) @@ -1320,7 +1333,8 @@ static irqreturn_t exynos_dsi_irq(int irq, void *dev_id) static irqreturn_t exynos_dsi_te_irq_handler(int irq, void *dev_id) { struct exynos_dsi *dsi = (struct exynos_dsi *)dev_id; - struct drm_encoder *encoder = &dsi->encoder; + struct exynos_dsi_enc *dsi_enc = dsi->priv; + struct drm_encoder *encoder = &dsi_enc->encoder; if (dsi->state & DSIM_STATE_VIDOUT_AVAILABLE) exynos_drm_crtc_te_handler(encoder->crtc); @@ -1589,9 +1603,8 @@ static int exynos_dsi_host_attach(struct mipi_dsi_host *host, struct mipi_dsi_device *device) { struct exynos_dsi *dsi = host_to_dsi(host); + const struct exynos_dsi_plat_data *pdata = dsi->plat_data; struct device *dev = dsi->dev; - struct drm_encoder *encoder = &dsi->encoder; - struct drm_device *drm = encoder->dev; int ret; dsi->out_bridge = devm_drm_of_dsi_get_bridge(dev, dev->of_node, 1, 0); @@ -1605,35 +1618,15 @@ static int exynos_dsi_host_attach(struct mipi_dsi_host *host, drm_bridge_add(&dsi->bridge); - drm_bridge_attach(encoder, &dsi->bridge, - list_first_entry_or_null(&encoder->bridge_chain, - struct drm_bridge, - chain_node), 0); - - /* - * This is a temporary solution and should be made by more generic way. - * - * If attached panel device is for command mode one, dsi should register - * TE interrupt handler. - */ - if (!(device->mode_flags & MIPI_DSI_MODE_VIDEO)) { - ret = exynos_dsi_register_te_irq(dsi, &device->dev); - if (ret) + if (pdata->host_ops && pdata->host_ops->attach) { + ret = pdata->host_ops->attach(dsi, device); + if (ret < 0) return ret; } - mutex_lock(&drm->mode_config.mutex); - dsi->lanes = device->lanes; dsi->format = device->format; dsi->mode_flags = device->mode_flags; - exynos_drm_crtc_get_by_type(drm, EXYNOS_DISPLAY_TYPE_LCD)->i80_mode = - !(dsi->mode_flags & MIPI_DSI_MODE_VIDEO); - - mutex_unlock(&drm->mode_config.mutex); - - if (drm->mode_config.poll_enabled) - drm_kms_helper_hotplug_event(drm); return 0; } @@ -1642,12 +1635,14 @@ static int exynos_dsi_host_detach(struct mipi_dsi_host *host, struct mipi_dsi_device *device) { struct exynos_dsi *dsi = host_to_dsi(host); - struct drm_device *drm = dsi->encoder.dev; - - if (drm->mode_config.poll_enabled) - drm_kms_helper_hotplug_event(drm); + const struct exynos_dsi_plat_data *pdata = dsi->plat_data; + int ret; - exynos_dsi_unregister_te_irq(dsi); + if (pdata->host_ops && pdata->host_ops->detach) { + ret = pdata->host_ops->detach(dsi, device); + if (ret < 0) + return ret; + } drm_bridge_remove(&dsi->bridge); @@ -1721,11 +1716,67 @@ static int exynos_dsi_parse_dt(struct exynos_dsi *dsi) return 0; } +static int _exynos_dsi_host_attach(struct exynos_dsi *dsim, + struct mipi_dsi_device *device) +{ + struct exynos_dsi_enc *dsi_enc = dsim->priv; + struct drm_encoder *encoder = &dsi_enc->encoder; + struct drm_device *drm = encoder->dev; + int ret; + + drm_bridge_attach(encoder, &dsim->bridge, + list_first_entry_or_null(&encoder->bridge_chain, + struct drm_bridge, + chain_node), 0); + + /* + * This is a temporary solution and should be made by more generic way. + * + * If attached panel device is for command mode one, dsi should register + * TE interrupt handler. + */ + if (!(device->mode_flags & MIPI_DSI_MODE_VIDEO)) { + ret = exynos_dsi_register_te_irq(dsim, &device->dev); + if (ret) + return ret; + } + + mutex_lock(&drm->mode_config.mutex); + + dsim->lanes = device->lanes; + dsim->format = device->format; + dsim->mode_flags = device->mode_flags; + exynos_drm_crtc_get_by_type(drm, EXYNOS_DISPLAY_TYPE_LCD)->i80_mode = + !(dsim->mode_flags & MIPI_DSI_MODE_VIDEO); + + mutex_unlock(&drm->mode_config.mutex); + + if (drm->mode_config.poll_enabled) + drm_kms_helper_hotplug_event(drm); + + return 0; +} + +static int _exynos_dsi_host_detach(struct exynos_dsi *dsim, + struct mipi_dsi_device *device) +{ + struct exynos_dsi_enc *dsi_enc = dsim->priv; + struct drm_device *drm = dsi_enc->encoder.dev; + + if (drm->mode_config.poll_enabled) + drm_kms_helper_hotplug_event(drm); + + exynos_dsi_unregister_te_irq(dsim); + + return 0; +} + static int exynos_dsi_bind(struct device *dev, struct device *master, void *data) { struct exynos_dsi *dsi = dev_get_drvdata(dev); - struct drm_encoder *encoder = &dsi->encoder; + struct exynos_dsi_enc *dsi_enc = dsi->priv; + struct drm_encoder *encoder = &dsi_enc->encoder; struct drm_device *drm_dev = data; int ret; @@ -1743,7 +1794,7 @@ static void exynos_dsi_unbind(struct device *dev, struct device *master, { struct exynos_dsi *dsi = dev_get_drvdata(dev); - exynos_dsi_atomic_disable(&dsi->bridge, NULL); + dsi->bridge.funcs->atomic_disable(&dsi->bridge, NULL); mipi_dsi_host_unregister(&dsi->dsi_host); } @@ -1753,6 +1804,40 @@ static const struct component_ops exynos_dsi_component_ops = { .unbind = exynos_dsi_unbind, }; +static int exynos_dsi_register_host(struct exynos_dsi *dsim) +{ + struct exynos_dsi_enc *dsi_enc; + + dsi_enc = devm_kzalloc(dsim->dev, sizeof(*dsi_enc), GFP_KERNEL); + if (!dsi_enc) + return -ENOMEM; + + dsim->priv = dsi_enc; + dsim->bridge.pre_enable_prev_first = true; + + return component_add(dsim->dev, &exynos_dsi_component_ops); +} + +static void exynos_dsi_unregister_host(struct exynos_dsi *dsim) +{ + component_del(dsim->dev, &exynos_dsi_component_ops); +} + +static int generic_dsim_register_host(struct exynos_dsi *dsim) +{ + return mipi_dsi_host_register(&dsim->dsi_host); +} + +static void generic_dsim_unregister_host(struct exynos_dsi *dsim) +{ + mipi_dsi_host_unregister(&dsim->dsi_host); +} + +static const struct exynos_dsim_host_ops generic_dsim_host_ops = { + .register_host = generic_dsim_register_host, + .unregister_host = generic_dsim_unregister_host, +}; + static const struct drm_bridge_timings dsim_bridge_timings_de_low = { .input_bus_flags = DRM_BUS_FLAG_DE_LOW, }; @@ -1847,7 +1932,9 @@ static int exynos_dsi_probe(struct platform_device *pdev) if (dsi->plat_data->hw_type == DSIM_TYPE_IMX8MM) dsi->bridge.timings = &dsim_bridge_timings_de_low; - ret = component_add(dev, &exynos_dsi_component_ops); + if (dsi->plat_data->host_ops && dsi->plat_data->host_ops->register_host) + ret = dsi->plat_data->host_ops->register_host(dsi); + if (ret) goto err_disable_runtime; @@ -1938,24 +2025,36 @@ static const struct dev_pm_ops exynos_dsi_pm_ops = { pm_runtime_force_resume) }; +static const struct exynos_dsim_host_ops exynos_dsi_host_ops = { + .register_host = exynos_dsi_register_host, + .unregister_host = exynos_dsi_unregister_host, + .attach = _exynos_dsi_host_attach, + .detach = _exynos_dsi_host_detach, +}; + static const struct exynos_dsi_plat_data exynos3250_dsi_pdata = { .hw_type = DSIM_TYPE_EXYNOS3250, + .host_ops = &exynos_dsi_host_ops, }; static const struct exynos_dsi_plat_data exynos4210_dsi_pdata = { .hw_type = DSIM_TYPE_EXYNOS4210, + .host_ops = &exynos_dsi_host_ops, }; static const struct exynos_dsi_plat_data exynos5410_dsi_pdata = { .hw_type = DSIM_TYPE_EXYNOS5410, + .host_ops = &exynos_dsi_host_ops, }; static const struct exynos_dsi_plat_data exynos5422_dsi_pdata = { .hw_type = DSIM_TYPE_EXYNOS5422, + .host_ops = &exynos_dsi_host_ops, }; static const struct exynos_dsi_plat_data exynos5433_dsi_pdata = { .hw_type = DSIM_TYPE_EXYNOS5433, + .host_ops = &exynos_dsi_host_ops, }; static const struct of_device_id exynos_dsi_of_match[] = { From patchwork Thu Jan 26 14:44:22 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Jagan Teki X-Patchwork-Id: 13117275 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id A8841C05027 for ; Thu, 26 Jan 2023 14:47:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230360AbjAZOrc (ORCPT ); Thu, 26 Jan 2023 09:47:32 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54494 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230482AbjAZOrc (ORCPT ); Thu, 26 Jan 2023 09:47:32 -0500 Received: from mail-pl1-x630.google.com (mail-pl1-x630.google.com [IPv6:2607:f8b0:4864:20::630]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5FF336A31F for ; Thu, 26 Jan 2023 06:47:23 -0800 (PST) Received: by mail-pl1-x630.google.com with SMTP id be8so2005355plb.7 for ; Thu, 26 Jan 2023 06:47:23 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amarulasolutions.com; s=google; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=A1BDEAt+rxWWloQDlKB/2I6ZLTZG0ASWjyAAcB7oGTE=; b=lMOybId87xz2ZyOHJXou8xZjJy2Gienx1uyxdWQ0pNTgLk+M2+B9DN4O5BJIr5Pji+ XW6Xp6rjEnaG7YFn/hj/Oh93k0G7s506IcxiYqxAg4dAN2bBej0MOTA+2h77TSGv5DcS XBUawWXccLWOHRppDnOqp1h5c8rU/sGkxnT8c= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=A1BDEAt+rxWWloQDlKB/2I6ZLTZG0ASWjyAAcB7oGTE=; b=hgdvB6ZmOjsyLQOP0N13ERc0bxahGLYHiUd2DJtHQdjTQHMwdssdTkK0RBGcwmqCDy iQNlo0UoDzmxOwclj8v3DuuwBg1VSxShzEubLpCVRWIp5XZWB5Ojw4KrtZhDKw2ixZNm 1kGhoL23zeo/Ciug2Ma961ziqZsCjCDAaOO2ocVOXXlxCTAHIf5jQug99sSU34JBEqsB OQXcFvWfkFw0C+4KKoXPl+Yrf7E541B0GQigvrRIU0OY3SI8uruuYU/NUfexzYG9cxZp w9KjPANctPEcKd0+MMZpixR9jRgKjOmd+OI40oirAPcpZgxxmshZBx3Fe0Pv+aQ3Y4zz OhiA== X-Gm-Message-State: AFqh2kope224jmBTRhnYCORJF1PHAGwyUb4EVZCfWQ+iP47ZlBdX2WLX Wsugtwyw9fKwaEjQ/2XEEXGH8qg7pbxHSUOzpbI= X-Google-Smtp-Source: AMrXdXsQ9iGnU7hZJbbFFwwp29B7k3r1WFplJKzJsKhS/P+qYxclQigi3wIX8J/engpZhelsyuPTsg== X-Received: by 2002:a05:6a21:3381:b0:af:6cc0:5b3d with SMTP id yy1-20020a056a21338100b000af6cc05b3dmr50400165pzb.7.1674744442878; Thu, 26 Jan 2023 06:47:22 -0800 (PST) Received: from localhost.localdomain ([2405:201:c00a:a238:3cb1:2156:ef87:8af5]) by smtp.gmail.com with ESMTPSA id d197-20020a6336ce000000b0042988a04bfdsm823660pga.9.2023.01.26.06.47.09 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 26 Jan 2023 06:47:22 -0800 (PST) From: Jagan Teki To: Andrzej Hajda , Inki Dae , Marek Szyprowski , Seung-Woo Kim , Kyungmin Park , Frieder Schrempf , Tim Harvey , Adam Ford , Robert Foss , Laurent Pinchart , Marek Vasut Cc: Matteo Lisi , dri-devel@lists.freedesktop.org, linux-samsung-soc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, NXP Linux Team , linux-amarula , Jagan Teki Subject: [PATCH v12 13/18] drm: exynos: dsi: Add host helper for te_irq_handler Date: Thu, 26 Jan 2023 20:14:22 +0530 Message-Id: <20230126144427.607098-14-jagan@amarulasolutions.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230126144427.607098-1-jagan@amarulasolutions.com> References: <20230126144427.607098-1-jagan@amarulasolutions.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-samsung-soc@vger.kernel.org IRQ handler for te-gpio seems to be common across DSIM host. However, Exynos is handling this via CRTC drivers but there is no clear evidence on how the same has been handled in i.MX8MM. Keeping the handler as-it-is can be a viable option but adding DSIM bridge core in upcoming patches is not possible to call Exynos CRTC handler as DSIM bridge has to be common across DRM bridge core instead of platform specific DRM drivers like Exynos here. So, this patch handles the handler via platform host helper, so-that handling platform specific hook across Exynos and generic can be reasonable till it makes it generic across all platforms. Signed-off-by: Jagan Teki --- Changes for v12: - updated patch - suggested by Marek V Changes for v11: - none Changes for v10: - split from previous series patch "drm: bridge: Generalize Exynos-DSI driver into a Samsung DSIM bridge" drivers/gpu/drm/exynos/exynos_drm_dsi.c | 20 ++++++++++++++++---- 1 file changed, 16 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/exynos/exynos_drm_dsi.c b/drivers/gpu/drm/exynos/exynos_drm_dsi.c index 488fae218205..1d95909391e2 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_dsi.c +++ b/drivers/gpu/drm/exynos/exynos_drm_dsi.c @@ -325,6 +325,7 @@ struct exynos_dsim_host_ops { void (*unregister_host)(struct exynos_dsi *dsim); int (*attach)(struct exynos_dsi *dsim, struct mipi_dsi_device *device); int (*detach)(struct exynos_dsi *dsim, struct mipi_dsi_device *device); + irqreturn_t (*te_irq_handler)(struct exynos_dsi *dsim); }; struct exynos_dsi_enc { @@ -1333,11 +1334,10 @@ static irqreturn_t exynos_dsi_irq(int irq, void *dev_id) static irqreturn_t exynos_dsi_te_irq_handler(int irq, void *dev_id) { struct exynos_dsi *dsi = (struct exynos_dsi *)dev_id; - struct exynos_dsi_enc *dsi_enc = dsi->priv; - struct drm_encoder *encoder = &dsi_enc->encoder; + const struct exynos_dsi_plat_data *pdata = dsi->plat_data; - if (dsi->state & DSIM_STATE_VIDOUT_AVAILABLE) - exynos_drm_crtc_te_handler(encoder->crtc); + if (pdata->host_ops && pdata->host_ops->te_irq_handler) + return pdata->host_ops->te_irq_handler(dsi); return IRQ_HANDLED; } @@ -1716,6 +1716,17 @@ static int exynos_dsi_parse_dt(struct exynos_dsi *dsi) return 0; } +static irqreturn_t _exynos_dsi_te_irq_handler(struct exynos_dsi *dsim) +{ + struct exynos_dsi_enc *dsi_enc = dsim->priv; + struct drm_encoder *encoder = &dsi_enc->encoder; + + if (dsim->state & DSIM_STATE_VIDOUT_AVAILABLE) + exynos_drm_crtc_te_handler(encoder->crtc); + + return IRQ_HANDLED; +} + static int _exynos_dsi_host_attach(struct exynos_dsi *dsim, struct mipi_dsi_device *device) { @@ -2030,6 +2041,7 @@ static const struct exynos_dsim_host_ops exynos_dsi_host_ops = { .unregister_host = exynos_dsi_unregister_host, .attach = _exynos_dsi_host_attach, .detach = _exynos_dsi_host_detach, + .te_irq_handler = _exynos_dsi_te_irq_handler, }; static const struct exynos_dsi_plat_data exynos3250_dsi_pdata = { From patchwork Thu Jan 26 14:44:24 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jagan Teki X-Patchwork-Id: 13117276 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id BEF3BC54E94 for ; Thu, 26 Jan 2023 14:47:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231774AbjAZOrv (ORCPT ); Thu, 26 Jan 2023 09:47:51 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54794 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229512AbjAZOrt (ORCPT ); Thu, 26 Jan 2023 09:47:49 -0500 Received: from mail-pj1-x102f.google.com (mail-pj1-x102f.google.com [IPv6:2607:f8b0:4864:20::102f]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5B4FC5B9E for ; Thu, 26 Jan 2023 06:47:47 -0800 (PST) Received: by mail-pj1-x102f.google.com with SMTP id nn18-20020a17090b38d200b0022bfb584987so1920611pjb.2 for ; Thu, 26 Jan 2023 06:47:47 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amarulasolutions.com; s=google; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=FKvIfsgTCLn2iGe+HpUVx9o6FL0YoXL442NeJHKNz98=; b=X29/6osZcjOtOFC3eOXcmKegkdt5nLJA5TpQngO3n6xH1dUg+tytfzZThy11s/MN/b wrQktVIfqeU4cCD2UmtJVqbF3BnleC94tu8sjdQlAsGzGCT+SVCE4p83q1LLPLnefMdt Ypy7D3kWWtRZaM0bCjJGH/TGC1AGlYce+ArC0= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=FKvIfsgTCLn2iGe+HpUVx9o6FL0YoXL442NeJHKNz98=; b=Xph/Kudx2Ht8SLGsS2tv/zPi43O6V9pwyRPLMsGeJM5zhUIntCvV7v1AdUWkCrjPfg JJ9XmjczKT8bCfETA/mWd/vG6BBijlec7KNeMcblzcmk48T6DC9wP6GuC6xuYiwhv/c8 fNLkHUXdu4mj9AI2n1jG6BkdQk/JYJ2rQ9zaaWPJ52NUAV6cllg9RQPoZndQgi19ue/a 6LvOXud9COI0CtWtAfAw7P9I7PaTSrDXFgHbNwIkv0t52Y5fpM1DLv+POr6f9w5KblDw 8lzl+b5Mm25C5Kxj5EEGBfrfWoytOsbxtesDSYomKtve6CsyJt2+yDE8puYF5T3zGhbL Zl2w== X-Gm-Message-State: AO0yUKW01YM+PewSoA+AHwUGHJPPNU9UYMG1OQOetvtNwz/ojTtkItD3 8AxpVmM0E22SgicgIHikhh+Rkw== X-Google-Smtp-Source: AK7set8wiMGoS8PVtAcDz5VuT7TAfu74EE9tHJ2M1XbqS6aOtXVUMjlQ7DaXK2j9N9sy4hFYZBu3SA== X-Received: by 2002:a05:6a20:7d83:b0:bb:cf2f:3b09 with SMTP id v3-20020a056a207d8300b000bbcf2f3b09mr8154537pzj.51.1674744466787; Thu, 26 Jan 2023 06:47:46 -0800 (PST) Received: from localhost.localdomain ([2405:201:c00a:a238:3cb1:2156:ef87:8af5]) by smtp.gmail.com with ESMTPSA id d197-20020a6336ce000000b0042988a04bfdsm823660pga.9.2023.01.26.06.47.34 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 26 Jan 2023 06:47:45 -0800 (PST) From: Jagan Teki To: Andrzej Hajda , Inki Dae , Marek Szyprowski , Seung-Woo Kim , Kyungmin Park , Frieder Schrempf , Tim Harvey , Adam Ford , Robert Foss , Laurent Pinchart , Marek Vasut Cc: Matteo Lisi , dri-devel@lists.freedesktop.org, linux-samsung-soc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, NXP Linux Team , linux-amarula , Jagan Teki , Rob Herring Subject: [PATCH v12 15/18] dt-bindings: display: exynos: dsim: Add NXP i.MX8M Mini/Nano support Date: Thu, 26 Jan 2023 20:14:24 +0530 Message-Id: <20230126144427.607098-16-jagan@amarulasolutions.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230126144427.607098-1-jagan@amarulasolutions.com> References: <20230126144427.607098-1-jagan@amarulasolutions.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-samsung-soc@vger.kernel.org Samsung MIPI DSIM bridge can also be found in i.MX8M Mini/Nano SoC. Add dt-bingings for it. Reviewed-by: Marek Vasut Acked-by: Rob Herring Signed-off-by: Jagan Teki --- Changes for v12: - collect RB from Marek Changes for v11, v10, v9: - none Changes for v8: - add comment to include i.MX8M Nano. Changes for v7, v6, v5, v4: - none Changes for v3: - collect Rob Acked-by Changes for v2: - updated comments Changes for v1: - new patch Documentation/devicetree/bindings/display/exynos/exynos_dsim.txt | 1 + 1 file changed, 1 insertion(+) diff --git a/Documentation/devicetree/bindings/display/exynos/exynos_dsim.txt b/Documentation/devicetree/bindings/display/exynos/exynos_dsim.txt index be377786e8cd..5133d4d39190 100644 --- a/Documentation/devicetree/bindings/display/exynos/exynos_dsim.txt +++ b/Documentation/devicetree/bindings/display/exynos/exynos_dsim.txt @@ -7,6 +7,7 @@ Required properties: "samsung,exynos5410-mipi-dsi" /* for Exynos5410/5420/5440 SoCs */ "samsung,exynos5422-mipi-dsi" /* for Exynos5422/5800 SoCs */ "samsung,exynos5433-mipi-dsi" /* for Exynos5433 SoCs */ + "fsl,imx8mm-mipi-dsim" /* for i.MX8M Mini/Nano SoCs */ - reg: physical base address and length of the registers set for the device - interrupts: should contain DSI interrupt - clocks: list of clock specifiers, must contain an entry for each required From patchwork Thu Jan 26 14:44:25 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jagan Teki X-Patchwork-Id: 13117277 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id D849FC05027 for ; Thu, 26 Jan 2023 14:48:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230484AbjAZOsG (ORCPT ); Thu, 26 Jan 2023 09:48:06 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55358 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230003AbjAZOsF (ORCPT ); Thu, 26 Jan 2023 09:48:05 -0500 Received: from mail-pj1-x1029.google.com (mail-pj1-x1029.google.com [IPv6:2607:f8b0:4864:20::1029]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B2CB8126D2 for ; Thu, 26 Jan 2023 06:48:00 -0800 (PST) Received: by mail-pj1-x1029.google.com with SMTP id z1-20020a17090a66c100b00226f05b9595so1955938pjl.0 for ; Thu, 26 Jan 2023 06:48:00 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amarulasolutions.com; s=google; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=RVt6cqLgzh0ZQuUHgJ1jTOMS/S45HwG4L9ZBObbs1DA=; b=nwRbCdV+AdA8BRCL39dtOGpyP5Iskx7t+HuRZN7TMEE9ItvopktPlulXGfXIQypLri iopdSszNQuCef1GsAfWqAg62jvjrahuPGF09UtkX/MXjDVLJckmPkBsbrXxDcwO3WZNm Ch+xOZRyn1/mzay6yhYYq1MkYdhy56ETlheTQ= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=RVt6cqLgzh0ZQuUHgJ1jTOMS/S45HwG4L9ZBObbs1DA=; b=b9VNPgi6HgVIzTr1ICl12z6TLQVsoX2szLeMhRJZf+7P1PSw5Ga8W/8fwMGLLt7+T4 1XgVavOpjBfqKpX1iccy8K6BIIV06o2/8lXnL7LKAsIl9pHLUWodaaZCkxdduJCSw05H d6yxxrBPsOjP/2FCn93uLWEtRp1jObKG5AUkRV4ZBH2K1xK6Itd5Pkf27nMF33hmgiw/ VHOcdNirdvZCQkYHt3MbaLty4DRXuSzlIU/rTtqPgN2f8XXoSh2SB7tkAXNXvVMg3cWk urcXc2c54UHDnM4IjZeM6nOPEkvggrgtwgzJVcgPGeHIifmH+8Jv1XvFC5Q8NGiyYjvZ Huiw== X-Gm-Message-State: AO0yUKWqyuk9vRzVSBp+UYn+4V0yVpc7rvR+l7/rkuiJMLsScJkhwjUK W3d9YYdZU9MNe78BIV3voI5Wnw== X-Google-Smtp-Source: AK7set9CsD0938Tc3HLBRoT86skCSX4fICcKgseb7qXp0urX+EGNd/9tVSr9ITgyyaI8GA7rjj31pQ== X-Received: by 2002:a05:6a20:9f8e:b0:bb:b903:d836 with SMTP id mm14-20020a056a209f8e00b000bbb903d836mr7232205pzb.54.1674744479974; Thu, 26 Jan 2023 06:47:59 -0800 (PST) Received: from localhost.localdomain ([2405:201:c00a:a238:3cb1:2156:ef87:8af5]) by smtp.gmail.com with ESMTPSA id d197-20020a6336ce000000b0042988a04bfdsm823660pga.9.2023.01.26.06.47.47 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 26 Jan 2023 06:47:59 -0800 (PST) From: Jagan Teki To: Andrzej Hajda , Inki Dae , Marek Szyprowski , Seung-Woo Kim , Kyungmin Park , Frieder Schrempf , Tim Harvey , Adam Ford , Robert Foss , Laurent Pinchart , Marek Vasut Cc: Matteo Lisi , dri-devel@lists.freedesktop.org, linux-samsung-soc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, NXP Linux Team , linux-amarula , Jagan Teki , Laurent Pinchart Subject: [PATCH v12 16/18] drm: bridge: samsung-dsim: Add i.MX8M Mini/Nano support Date: Thu, 26 Jan 2023 20:14:25 +0530 Message-Id: <20230126144427.607098-17-jagan@amarulasolutions.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230126144427.607098-1-jagan@amarulasolutions.com> References: <20230126144427.607098-1-jagan@amarulasolutions.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-samsung-soc@vger.kernel.org Samsung MIPI DSIM master can also be found in i.MX8M Mini/Nano SoC. Add compatible and associated driver_data for it. Reviewed-by: Marek Vasut Reviewed-by: Frieder Schrempf Acked-by: Robert Foss Reviewed-by: Laurent Pinchart Signed-off-by: Marek Szyprowski Signed-off-by: Jagan Teki --- Changes for v12: - collect RB from Marek Changes for v11: - collect RB from Frieder - collect ACK from Robert Changes for v10, v9: - none Changed for v8: - fix and update the comment Changes for v7, v6: - none Changes for v3: - enable DSIM_QUIRK_FIXUP_SYNC_POL quirk Changes for v5: - [mszyprow] rebased and adjusted to the new driver initialization - drop quirk Changes for v4: - none Changes for v3: - enable DSIM_QUIRK_FIXUP_SYNC_POL quirk Changes for v2: - collect Laurent r-b Changes for v1: - none drivers/gpu/drm/bridge/samsung-dsim.c | 44 +++++++++++++++++++++++++++ 1 file changed, 44 insertions(+) diff --git a/drivers/gpu/drm/bridge/samsung-dsim.c b/drivers/gpu/drm/bridge/samsung-dsim.c index c90314c4d205..fd042dbcd8d6 100644 --- a/drivers/gpu/drm/bridge/samsung-dsim.c +++ b/drivers/gpu/drm/bridge/samsung-dsim.c @@ -376,6 +376,24 @@ static const unsigned int exynos5433_reg_values[] = { [PHYTIMING_HS_TRAIL] = DSIM_PHYTIMING2_HS_TRAIL(0x0c), }; +static const unsigned int imx8mm_dsim_reg_values[] = { + [RESET_TYPE] = DSIM_SWRST, + [PLL_TIMER] = 500, + [STOP_STATE_CNT] = 0xf, + [PHYCTRL_ULPS_EXIT] = 0, + [PHYCTRL_VREG_LP] = 0, + [PHYCTRL_SLEW_UP] = 0, + [PHYTIMING_LPX] = DSIM_PHYTIMING_LPX(0x06), + [PHYTIMING_HS_EXIT] = DSIM_PHYTIMING_HS_EXIT(0x0b), + [PHYTIMING_CLK_PREPARE] = DSIM_PHYTIMING1_CLK_PREPARE(0x07), + [PHYTIMING_CLK_ZERO] = DSIM_PHYTIMING1_CLK_ZERO(0x26), + [PHYTIMING_CLK_POST] = DSIM_PHYTIMING1_CLK_POST(0x0d), + [PHYTIMING_CLK_TRAIL] = DSIM_PHYTIMING1_CLK_TRAIL(0x08), + [PHYTIMING_HS_PREPARE] = DSIM_PHYTIMING2_HS_PREPARE(0x08), + [PHYTIMING_HS_ZERO] = DSIM_PHYTIMING2_HS_ZERO(0x0d), + [PHYTIMING_HS_TRAIL] = DSIM_PHYTIMING2_HS_TRAIL(0x0b), +}; + static const struct samsung_dsim_driver_data exynos3_dsi_driver_data = { .reg_ofs = exynos_reg_ofs, .plltmr_reg = 0x50, @@ -437,6 +455,22 @@ static const struct samsung_dsim_driver_data exynos5422_dsi_driver_data = { .reg_values = exynos5422_reg_values, }; +static const struct samsung_dsim_driver_data imx8mm_dsi_driver_data = { + .reg_ofs = exynos5433_reg_ofs, + .plltmr_reg = 0xa0, + .has_clklane_stop = 1, + .num_clks = 2, + .max_freq = 2100, + .wait_for_reset = 0, + .num_bits_resol = 12, + /* + * Unlike Exynos, PLL_P(PMS_P) offset 14 is used in i.MX8M Mini/Nano/Plus + * downstream driver - drivers/gpu/drm/bridge/sec-dsim.c + */ + .pll_p_offset = 14, + .reg_values = imx8mm_dsim_reg_values, +}; + static const struct samsung_dsim_driver_data * samsung_dsim_types[DSIM_TYPE_COUNT] = { [DSIM_TYPE_EXYNOS3250] = &exynos3_dsi_driver_data, @@ -444,6 +478,7 @@ samsung_dsim_types[DSIM_TYPE_COUNT] = { [DSIM_TYPE_EXYNOS5410] = &exynos5_dsi_driver_data, [DSIM_TYPE_EXYNOS5422] = &exynos5422_dsi_driver_data, [DSIM_TYPE_EXYNOS5433] = &exynos5433_dsi_driver_data, + [DSIM_TYPE_IMX8MM] = &imx8mm_dsi_driver_data, }; static inline struct samsung_dsim *host_to_dsi(struct mipi_dsi_host *h) @@ -1832,7 +1867,16 @@ const struct dev_pm_ops samsung_dsim_pm_ops = { }; EXPORT_SYMBOL_GPL(samsung_dsim_pm_ops); +static const struct samsung_dsim_plat_data samsung_dsim_imx8mm_pdata = { + .hw_type = DSIM_TYPE_IMX8MM, + .host_ops = &generic_dsim_host_ops, +}; + static const struct of_device_id samsung_dsim_of_match[] = { + { + .compatible = "fsl,imx8mm-mipi-dsim", + .data = &samsung_dsim_imx8mm_pdata, + }, { /* sentinel. */ } }; MODULE_DEVICE_TABLE(of, samsung_dsim_of_match); From patchwork Thu Jan 26 14:44:26 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jagan Teki X-Patchwork-Id: 13117278 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 765E4C54E94 for ; Thu, 26 Jan 2023 14:48:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229446AbjAZOsR (ORCPT ); Thu, 26 Jan 2023 09:48:17 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55544 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231835AbjAZOsP (ORCPT ); Thu, 26 Jan 2023 09:48:15 -0500 Received: from mail-pl1-x629.google.com (mail-pl1-x629.google.com [IPv6:2607:f8b0:4864:20::629]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BFCDA16301 for ; Thu, 26 Jan 2023 06:48:11 -0800 (PST) Received: by mail-pl1-x629.google.com with SMTP id a18so2031101plm.2 for ; Thu, 26 Jan 2023 06:48:11 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amarulasolutions.com; s=google; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=WWJre9MokG3OwazBJKO8AFvo6cc1OP5hw5VIrxt3xjQ=; b=LuI6OpP67H5DxxzNzy/f9orpV3i2pMvWTDYGBNdDw02li0Frn2nfgEd6Lpzg1sgz3S xBjMKQd3RVxgZZjN90ipW/IPhuoZr+vjEGC6hkRw7Yc+35Hf0cLCYVErGtg36+rvhKSc 3NT4WSxCGc2rSznvQ4Lw0hg6BtjSIUfjSrrAs= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=WWJre9MokG3OwazBJKO8AFvo6cc1OP5hw5VIrxt3xjQ=; b=dONtEwHGPJUQbZcp7GbobPNXRLTK8mo9Cj0BUFGQsFSPU5KpBpIpfPEqpbK46F7nEe E38fxWJ8oSGNO6s70FUj2hR49Rq3aHzBHDB+7ztPnZ+xf+BndB6WVDpR2fZXVFJLPAd6 ghOWwcJ2nTm9zPsT9pri8UVlzSybtgRo+tbj6YkxKJxwEhhN2EDBzXoZw3lrjFB33gsG kNgA08BFtL9NkUbNc9DtDeH2iNHUB6qjYNuHokifVEvaNjWF9mkWiYHYWvoFtLCnmCd/ Lwclkq7sFQxwhxzoRSr5ji9dY2ybjQfQnmfyzFfNFXYXgL0MZdlMfjQspAyujDATtdEO c8Lw== X-Gm-Message-State: AO0yUKXRH07DOYN9BDlj/VEKRdvnGuSLSoVY48UaVW/kta4qHkOwuYIZ ZjgxAj7A0E3ou/g7lMm540w8cw== X-Google-Smtp-Source: AK7set/GdOWdGOkGUzErY4GPI2EXHPei2U02oxcKkoPna8tnYMtQ0aF3vC8ST2FEWFeJMqW6jz/zug== X-Received: by 2002:a05:6a20:3943:b0:a5:7700:2a4a with SMTP id r3-20020a056a20394300b000a577002a4amr2862336pzg.51.1674744491317; Thu, 26 Jan 2023 06:48:11 -0800 (PST) Received: from localhost.localdomain ([2405:201:c00a:a238:3cb1:2156:ef87:8af5]) by smtp.gmail.com with ESMTPSA id d197-20020a6336ce000000b0042988a04bfdsm823660pga.9.2023.01.26.06.48.00 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 26 Jan 2023 06:48:10 -0800 (PST) From: Jagan Teki To: Andrzej Hajda , Inki Dae , Marek Szyprowski , Seung-Woo Kim , Kyungmin Park , Frieder Schrempf , Tim Harvey , Adam Ford , Robert Foss , Laurent Pinchart , Marek Vasut Cc: Matteo Lisi , dri-devel@lists.freedesktop.org, linux-samsung-soc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, NXP Linux Team , linux-amarula , Jagan Teki , Rob Herring Subject: [PATCH v12 17/18] dt-bindings: display: exynos: dsim: Add NXP i.MX8M Plus support Date: Thu, 26 Jan 2023 20:14:26 +0530 Message-Id: <20230126144427.607098-18-jagan@amarulasolutions.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230126144427.607098-1-jagan@amarulasolutions.com> References: <20230126144427.607098-1-jagan@amarulasolutions.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-samsung-soc@vger.kernel.org Samsung MIPI DSIM bridge can also be found in i.MX8M Plus SoC. Add dt-bingings for it. Reviewed-by: Marek Vasut Acked-by: Rob Herring Signed-off-by: Jagan Teki --- Changes for v12: - collect RB from Marek Changes for v11: - collect ACK from Rob Changes for v10, v9: - none Documentation/devicetree/bindings/display/exynos/exynos_dsim.txt | 1 + 1 file changed, 1 insertion(+) diff --git a/Documentation/devicetree/bindings/display/exynos/exynos_dsim.txt b/Documentation/devicetree/bindings/display/exynos/exynos_dsim.txt index 5133d4d39190..2a5f0889ec32 100644 --- a/Documentation/devicetree/bindings/display/exynos/exynos_dsim.txt +++ b/Documentation/devicetree/bindings/display/exynos/exynos_dsim.txt @@ -8,6 +8,7 @@ Required properties: "samsung,exynos5422-mipi-dsi" /* for Exynos5422/5800 SoCs */ "samsung,exynos5433-mipi-dsi" /* for Exynos5433 SoCs */ "fsl,imx8mm-mipi-dsim" /* for i.MX8M Mini/Nano SoCs */ + "fsl,imx8mp-mipi-dsim" /* for i.MX8M Plus SoCs */ - reg: physical base address and length of the registers set for the device - interrupts: should contain DSI interrupt - clocks: list of clock specifiers, must contain an entry for each required From patchwork Thu Jan 26 14:44:27 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jagan Teki X-Patchwork-Id: 13117279 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9010BC05027 for ; Thu, 26 Jan 2023 14:48:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230371AbjAZOs3 (ORCPT ); Thu, 26 Jan 2023 09:48:29 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55750 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229639AbjAZOs2 (ORCPT ); Thu, 26 Jan 2023 09:48:28 -0500 Received: from mail-pl1-x62a.google.com (mail-pl1-x62a.google.com [IPv6:2607:f8b0:4864:20::62a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 430083D098 for ; Thu, 26 Jan 2023 06:48:26 -0800 (PST) Received: by mail-pl1-x62a.google.com with SMTP id v23so2034912plo.1 for ; Thu, 26 Jan 2023 06:48:26 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amarulasolutions.com; s=google; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=mMIeNlQX1kpLCSK2213Nh/t20sw/zDBNyvoSqBTr940=; b=F7NyYLMycjIoMjaP3DOlXk6uH4cBhJSK095XAZrEqeiEhtY0234kpDJ/jCKP5Ar58q nWPzD0tNrOIdogcYU4PeAARxyDFgIjaIESTbr4eRvYsJPKKfF2Dl7aVIiYivl6+xeDXZ c1AQfTvFB19+pXXKriuFj/n9hZE4e5muXIMLE= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=mMIeNlQX1kpLCSK2213Nh/t20sw/zDBNyvoSqBTr940=; b=P5C2161eNPixiE8QmuhBtu8xj/r9IQXk7xCkoRteFtneMxiKKdgIO7G48tupOCvOi9 CzyRa7jMVkazTjxtCnqlLl4UM4qTPjk9mOlXuArQgNWO1f5bU0j0Krt0epM63AkxM+eU PTJn2JqeyOp0Y3Mrx9E2H0dxHImXQzz/anHMDHl/oH1LikCp/q3SIF5QuJGVou9VOOOd pRfz3ROeslpG7p5/Ge9Uo7OR0s1WP9hsfjbHoFllTUxsRy+k67s1z7x4mWB0Cf7MO4J6 KsEoWYNzL0olRXGCQt7wiewHVwPnvHI+D21302Ni0pSNBp8StuO/gotywX2dGcTR4w0o Yzbg== X-Gm-Message-State: AO0yUKXlO1F2+nmloPu+3G8abwOzQRjsjPvAMKw5cHRTkgl9bv3LgwPX sZfKomiJPTYTUXsWoVN11vylsg== X-Google-Smtp-Source: AK7set8m7x1NPxEBd47AGk3fztqr+4pr/7FTzJtG4adsdxO8pdkbQBiGBxb1NTJBcAvA8X+J/mhTyA== X-Received: by 2002:a05:6a20:ba14:b0:b8:723f:e21b with SMTP id fa20-20020a056a20ba1400b000b8723fe21bmr2005411pzb.3.1674744505688; Thu, 26 Jan 2023 06:48:25 -0800 (PST) Received: from localhost.localdomain ([2405:201:c00a:a238:3cb1:2156:ef87:8af5]) by smtp.gmail.com with ESMTPSA id d197-20020a6336ce000000b0042988a04bfdsm823660pga.9.2023.01.26.06.48.13 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 26 Jan 2023 06:48:25 -0800 (PST) From: Jagan Teki To: Andrzej Hajda , Inki Dae , Marek Szyprowski , Seung-Woo Kim , Kyungmin Park , Frieder Schrempf , Tim Harvey , Adam Ford , Robert Foss , Laurent Pinchart , Marek Vasut Cc: Matteo Lisi , dri-devel@lists.freedesktop.org, linux-samsung-soc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, NXP Linux Team , linux-amarula , Jagan Teki Subject: [PATCH v12 18/18] drm: bridge: samsung-dsim: Add i.MX8M Plus support Date: Thu, 26 Jan 2023 20:14:27 +0530 Message-Id: <20230126144427.607098-19-jagan@amarulasolutions.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230126144427.607098-1-jagan@amarulasolutions.com> References: <20230126144427.607098-1-jagan@amarulasolutions.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-samsung-soc@vger.kernel.org From: Marek Vasut Add extras to support i.MX8M Plus. The main change is the removal of HS/VS/DE signal inversion in the LCDIFv3-DSIM glue logic, otherwise the implementation of this IP in i.MX8M Plus is very much compatible with the i.MX8M Mini/Nano one. Reviewed-by: Marek Vasut Reviewed-by: Frieder Schrempf Acked-by: Robert Foss Signed-off-by: Marek Vasut Signed-off-by: Jagan Teki --- Changes for v12: - collect RB from Marek Changes for v11: - collect RB from Frieder - collect ACK from Robert Changes for v10: - none Changes for v9: - added im8mp in DSIM_STATE_REINITIALIZED check - drop previous = NULL check drivers/gpu/drm/bridge/samsung-dsim.c | 23 +++++++++++++++++++++++ include/drm/bridge/samsung-dsim.h | 1 + 2 files changed, 24 insertions(+) diff --git a/drivers/gpu/drm/bridge/samsung-dsim.c b/drivers/gpu/drm/bridge/samsung-dsim.c index fd042dbcd8d6..ec4a2106d34f 100644 --- a/drivers/gpu/drm/bridge/samsung-dsim.c +++ b/drivers/gpu/drm/bridge/samsung-dsim.c @@ -479,6 +479,7 @@ samsung_dsim_types[DSIM_TYPE_COUNT] = { [DSIM_TYPE_EXYNOS5422] = &exynos5422_dsi_driver_data, [DSIM_TYPE_EXYNOS5433] = &exynos5433_dsi_driver_data, [DSIM_TYPE_IMX8MM] = &imx8mm_dsi_driver_data, + [DSIM_TYPE_IMX8MP] = &imx8mm_dsi_driver_data, }; static inline struct samsung_dsim *host_to_dsi(struct mipi_dsi_host *h) @@ -1452,10 +1453,17 @@ static int samsung_dsim_atomic_check(struct drm_bridge *bridge, * 13.6.2.7.2 RGB interface * both claim "Vsync, Hsync, and VDEN are active high signals.", the * LCDIF must generate inverted HS/VS/DE signals, i.e. active LOW. + * + * The i.MX8M Plus glue logic between LCDIFv3 and DSIM does not + * implement the same behavior, therefore LCDIFv3 must generate + * HS/VS/DE signals active HIGH. */ if (dsi->plat_data->hw_type == DSIM_TYPE_IMX8MM) { adjusted_mode->flags |= (DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC); adjusted_mode->flags &= ~(DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC); + } else if (dsi->plat_data->hw_type == DSIM_TYPE_IMX8MP) { + adjusted_mode->flags &= ~(DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC); + adjusted_mode->flags |= (DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC); } return 0; @@ -1678,6 +1686,10 @@ static const struct samsung_dsim_host_ops generic_dsim_host_ops = { .unregister_host = generic_dsim_unregister_host, }; +static const struct drm_bridge_timings samsung_dsim_bridge_timings_de_high = { + .input_bus_flags = DRM_BUS_FLAG_DE_HIGH, +}; + static const struct drm_bridge_timings samsung_dsim_bridge_timings_de_low = { .input_bus_flags = DRM_BUS_FLAG_DE_LOW, }; @@ -1767,6 +1779,8 @@ int samsung_dsim_probe(struct platform_device *pdev) /* DE_LOW: i.MX8M Mini/Nano LCDIF-DSIM glue logic inverts HS/VS/DE */ if (dsi->plat_data->hw_type == DSIM_TYPE_IMX8MM) dsi->bridge.timings = &samsung_dsim_bridge_timings_de_low; + else + dsi->bridge.timings = &samsung_dsim_bridge_timings_de_high; if (dsi->plat_data->host_ops && dsi->plat_data->host_ops->register_host) ret = dsi->plat_data->host_ops->register_host(dsi); @@ -1872,11 +1886,20 @@ static const struct samsung_dsim_plat_data samsung_dsim_imx8mm_pdata = { .host_ops = &generic_dsim_host_ops, }; +static const struct samsung_dsim_plat_data samsung_dsim_imx8mp_pdata = { + .hw_type = DSIM_TYPE_IMX8MP, + .host_ops = &generic_dsim_host_ops, +}; + static const struct of_device_id samsung_dsim_of_match[] = { { .compatible = "fsl,imx8mm-mipi-dsim", .data = &samsung_dsim_imx8mm_pdata, }, + { + .compatible = "fsl,imx8mp-mipi-dsim", + .data = &samsung_dsim_imx8mp_pdata, + }, { /* sentinel. */ } }; MODULE_DEVICE_TABLE(of, samsung_dsim_of_match); diff --git a/include/drm/bridge/samsung-dsim.h b/include/drm/bridge/samsung-dsim.h index 4ba387c958ae..fb923caf09e1 100644 --- a/include/drm/bridge/samsung-dsim.h +++ b/include/drm/bridge/samsung-dsim.h @@ -28,6 +28,7 @@ enum samsung_dsim_type { DSIM_TYPE_EXYNOS5422, DSIM_TYPE_EXYNOS5433, DSIM_TYPE_IMX8MM, + DSIM_TYPE_IMX8MP, DSIM_TYPE_COUNT, };