From patchwork Thu Jan 12 17:53:55 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chris Morgan X-Patchwork-Id: 13098533 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 gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 84AB5C63797 for ; Thu, 12 Jan 2023 17:54:21 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id DCF8E10E31F; Thu, 12 Jan 2023 17:54:17 +0000 (UTC) Received: from mail-oa1-x32.google.com (mail-oa1-x32.google.com [IPv6:2001:4860:4864:20::32]) by gabe.freedesktop.org (Postfix) with ESMTPS id 83FB210E31B for ; Thu, 12 Jan 2023 17:54:05 +0000 (UTC) Received: by mail-oa1-x32.google.com with SMTP id 586e51a60fabf-15027746720so19659633fac.13 for ; Thu, 12 Jan 2023 09:54:05 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; 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=tbQtC6VR/FF2nTlwiIZ/sGihRVBeIvN5iTfkeWtgBLM=; b=qPTD6c3rS1AIGdJd/IqwreRStSbgDKPzxdzC184rjfwMWhuSAyM+9w6ZlOnS18n5Ac Ur5lWfjTQpEn6+CjmmWae26MLrYu/Mm1MC5GHtyb2l8Lwji+JZzBG6JXDbL3BFisoZuO xUanSW2hmFOJ1mYsDeQ5wElTceOuKCkqGF03Ny/zR9PtsZhuLPXrODXy82BwbFL8gs1+ qK/MPEa8VfwCRl9hMLlz4dE/0wo/LraqHGrjFFJg7Rqo3Nw4oyalzSpyVm7wiMI0Za5U mSsfdgEgjLMhZBN8OwcXOwpSJAY648bSybKLME8kZ/zA+94/bwebwd6LzXu8PDvVcyDv K3UQ== 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=tbQtC6VR/FF2nTlwiIZ/sGihRVBeIvN5iTfkeWtgBLM=; b=yS5LPW7ZnQexHc6dp4h4Yb9cr/X5a0oy56dLVgcwNaidbmrVVeHnOEt/S2RY3ukBpZ rXCry8g4u4N4TROCPmaKKloWkq78YoB84auWz4a+5fanSQzGxWZA02WtCvsaEFH0X2FY 7NYyW2ySeOsOXwk9uRrSbxeJ2Hc1tBy3w6+F8E7k4HqAh+qifpfGwZpiDyDt8loOYmny 1TXrSjfB3D59SLw3MO9TT2LGw82ZHXxkx/5oCxZXHE1ONOD0TYKlhhMUHxxKhSnxK5CP MztTxI/LEcxo7XQcKG4AsgD+h68UCob4qVJNPCQRqsNizWRuhQj6IFG3SKPgDTVFh5Uo CvNg== X-Gm-Message-State: AFqh2koj9Fu6xdUTXSYsEw9Z/72Fk0jFJ5SOQOB43LBeI+GKjg44Jcj/ 6UZ/ZL8jS2Ab6Y8CoXHt3v8emS1P8z4= X-Google-Smtp-Source: AMrXdXuatgeeWB+YNvfU20Yql1rz5X827vbxrDwe2VY8Li5QrKB8iTXVl6QQLGb8ofIMG+3MqP+4vg== X-Received: by 2002:a05:6870:9f0d:b0:15e:ae80:4733 with SMTP id xl13-20020a0568709f0d00b0015eae804733mr2519457oab.6.1673546044553; Thu, 12 Jan 2023 09:54:04 -0800 (PST) Received: from localhost.localdomain (76-244-6-13.lightspeed.rcsntx.sbcglobal.net. [76.244.6.13]) by smtp.gmail.com with ESMTPSA id v17-20020a05687105d100b0014866eb34cesm9317049oan.48.2023.01.12.09.54.03 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 12 Jan 2023 09:54:04 -0800 (PST) From: Chris Morgan To: dri-devel@lists.freedesktop.org Subject: [PATCH V10 1/4] drm: of: Add drm_of_get_dsi_bus helper function Date: Thu, 12 Jan 2023 11:53:55 -0600 Message-Id: <20230112175358.421975-2-macroalpha82@gmail.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230112175358.421975-1-macroalpha82@gmail.com> References: <20230112175358.421975-1-macroalpha82@gmail.com> MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, Chris Morgan , krzysztof.kozlowski+dt@linaro.org, sam@ravnborg.org, linux-rockchip@lists.infradead.org, robh+dt@kernel.org, thierry.reding@gmail.com, tzimmermann@suse.de, maccraft123mc@gmail.com Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" From: Chris Morgan Add helper function to find DSI host for devices where DSI panel is not a minor of a DSI bus (such as the Samsung AMS495QA01 panel or the official Raspberry Pi touchscreen display). Signed-off-by: Chris Morgan Signed-off-by: Maya Matuszczyk --- drivers/gpu/drm/drm_of.c | 70 ++++++++++++++++++++++++++++++++++++++++ include/drm/drm_of.h | 10 ++++++ 2 files changed, 80 insertions(+) diff --git a/drivers/gpu/drm/drm_of.c b/drivers/gpu/drm/drm_of.c index 7bbcb999bb75..6c2c97a716fe 100644 --- a/drivers/gpu/drm/drm_of.c +++ b/drivers/gpu/drm/drm_of.c @@ -10,6 +10,7 @@ #include #include #include +#include #include #include @@ -493,3 +494,72 @@ int drm_of_get_data_lanes_count_ep(const struct device_node *port, return ret; } EXPORT_SYMBOL_GPL(drm_of_get_data_lanes_count_ep); + +#if IS_ENABLED(CONFIG_DRM_MIPI_DSI) + +/** + * drm_of_get_dsi_bus - find the DSI bus for a given device + * @dev: parent device of display (SPI, I2C) + * @info: DSI device info to be updated with DSI node. This is optional + * and if not needed can be NULL. + * + * Gets parent DSI bus for a DSI device controlled through a bus other + * than MIPI-DCS (SPI, I2C, etc.) using the Device Tree. + * + * Returns pointer to mipi_dsi_host if successful, -EINVAL if the + * request is unsupported, -EPROBE_DEFER if the DSI host is found but + * not available, or -ENODEV otherwise. + */ +struct mipi_dsi_host *drm_of_get_dsi_bus(struct device *dev, + struct mipi_dsi_device_info *info) +{ + struct mipi_dsi_host *dsi_host; + struct device_node *endpoint, *dsi_host_node; + + /* + * Get first endpoint child from device. + */ + endpoint = of_graph_get_next_endpoint(dev->of_node, NULL); + if (!endpoint) + return ERR_PTR(-ENODEV); + + /* + * Follow the first endpoint to get the DSI host node. + */ + dsi_host_node = of_graph_get_remote_port_parent(endpoint); + if (!dsi_host_node) + goto error; + + /* + * Get the DSI host from the DSI host node. If we get an error + * or the return is null assume we're not ready to probe just + * yet. Release the DSI host node since we're done with it. + */ + dsi_host = of_find_mipi_dsi_host_by_node(dsi_host_node); + of_node_put(dsi_host_node); + if (IS_ERR_OR_NULL(dsi_host)) { + of_node_put(endpoint); + return ERR_PTR(-EPROBE_DEFER); + } + + /* + * Set the node of the mipi_dsi_device_info to the correct node + * and then release the endpoint node since we're done with it. + * since this is optional, check if the info is NULL first. + */ + if (info) { + info->node = of_graph_get_remote_port(endpoint); + if (IS_ERR_OR_NULL(info->node)) + goto error; + } + + of_node_put(endpoint); + return dsi_host; + +error: + of_node_put(endpoint); + return ERR_PTR(-ENODEV); +} +EXPORT_SYMBOL_GPL(drm_of_get_dsi_bus); + +#endif /* CONFIG_DRM_MIPI_DSI */ diff --git a/include/drm/drm_of.h b/include/drm/drm_of.h index 10ab58c40746..705ea2caa494 100644 --- a/include/drm/drm_of.h +++ b/include/drm/drm_of.h @@ -15,6 +15,8 @@ struct drm_encoder; struct drm_panel; struct drm_bridge; struct device_node; +struct mipi_dsi_device_info; +struct mipi_dsi_host; /** * enum drm_lvds_dual_link_pixels - Pixel order of an LVDS dual-link connection @@ -56,6 +58,8 @@ int drm_of_get_data_lanes_count_ep(const struct device_node *port, int port_reg, int reg, const unsigned int min, const unsigned int max); +struct mipi_dsi_host *drm_of_get_dsi_bus(struct device *dev, + struct mipi_dsi_device_info *info); #else static inline uint32_t drm_of_crtc_port_mask(struct drm_device *dev, struct device_node *port) @@ -127,6 +131,12 @@ drm_of_get_data_lanes_count_ep(const struct device_node *port, { return -EINVAL; } +static inline struct +mipi_dsi_host *drm_of_get_dsi_bus(struct device *dev, + struct mipi_dsi_device_info *info) +{ + return ERR_PTR(-EINVAL); +} #endif /* From patchwork Thu Jan 12 17:53:56 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chris Morgan X-Patchwork-Id: 13098531 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 gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id D9F9DC54EBE for ; Thu, 12 Jan 2023 17:54:15 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 6773F10E322; Thu, 12 Jan 2023 17:54:10 +0000 (UTC) Received: from mail-oa1-x2e.google.com (mail-oa1-x2e.google.com [IPv6:2001:4860:4864:20::2e]) by gabe.freedesktop.org (Postfix) with ESMTPS id 4823210E31B for ; Thu, 12 Jan 2023 17:54:06 +0000 (UTC) Received: by mail-oa1-x2e.google.com with SMTP id 586e51a60fabf-150b06cb1aeso19676277fac.11 for ; Thu, 12 Jan 2023 09:54:06 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; 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=dgMx+QidzWwZB9d8EFxiQBvCTRSPbMX2JTxiBtWNFyk=; b=jvSE9f+Bm4PM6i8gp+gG4lmnpImnH3/NoZWA86JpoIpZsIyfAv3iy/IcwO742mXB3u /zwAgiKkKw69OmqnlJQwdbOzQXySY40V3rlIB/jwkae/+gsxQSqZCTJQx/gZauR3s428 EDAxO/BBILo+PDAjVT+iilsVBqYbiQuAmWLcb7/qcuz1ksyDL6fveCJf54EUvW7PcbYx +URrq4S29msEGO3LZ0hAgBNFAFIvRYoBY7ycyujotelk4tS86PVtpY0IJhX4TXuRu8f0 5eBQzT9bl59CeqxMTtCfVOaiMf50aMfIbuFjq7ug/tTKiChesrZSAbda3CKBjt5uKMHo icGA== 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=dgMx+QidzWwZB9d8EFxiQBvCTRSPbMX2JTxiBtWNFyk=; b=gGTqRtBm2wxQWz8XRCvW7zlArc1gjjJ0ITDcfDXYe9Al/e+OCB1yVRbqDWJHJXo9m+ uGg0GkXWQsiTitGcrLd33zMWv8Ji0p5KS9j9iVq3j98O381dDeR+7qEn6ihucdXbmNj/ oVGh9h6X3JcetzTb73MTwErBnXFWXjpgIWRcoxz692MQu/FlJa5PZhrZuV7ZXWEbBKGs B8/dx1Tv8KyQVuCpIXOZ8jjMQ6a+ZJE+S8LpTHg57iI5yCoNboJPx3tNgo+7gpbzTFp1 nz9JE+moXnTOvCE2PtgI9uvDTks8LDxoc9hboO1enhJYp+lIa2pirUHDgsUb1YE48sTK /tKw== X-Gm-Message-State: AFqh2kpLssYK150GiN4reJGploghVry1Vc6VuTgG5kdjoxb4Ls16DUWY DpWBKTG9+4zA1tEXcIggG5YXO0VMUd8= X-Google-Smtp-Source: AMrXdXsEeZ++yki3Zow70/z39R4DHq5FMuMU/XBn8Ia0aX+tI4LICosOB8DxRU6z5e6gylKLEcSwzQ== X-Received: by 2002:a05:6870:3e0e:b0:150:878c:d4c with SMTP id lk14-20020a0568703e0e00b00150878c0d4cmr22371019oab.3.1673546045296; Thu, 12 Jan 2023 09:54:05 -0800 (PST) Received: from localhost.localdomain (76-244-6-13.lightspeed.rcsntx.sbcglobal.net. [76.244.6.13]) by smtp.gmail.com with ESMTPSA id v17-20020a05687105d100b0014866eb34cesm9317049oan.48.2023.01.12.09.54.04 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 12 Jan 2023 09:54:05 -0800 (PST) From: Chris Morgan To: dri-devel@lists.freedesktop.org Subject: [PATCH V10 2/4] dt-bindings: display: panel: Add Samsung AMS495QA01 Date: Thu, 12 Jan 2023 11:53:56 -0600 Message-Id: <20230112175358.421975-3-macroalpha82@gmail.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230112175358.421975-1-macroalpha82@gmail.com> References: <20230112175358.421975-1-macroalpha82@gmail.com> MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, Chris Morgan , krzysztof.kozlowski+dt@linaro.org, sam@ravnborg.org, linux-rockchip@lists.infradead.org, robh+dt@kernel.org, thierry.reding@gmail.com, tzimmermann@suse.de, maccraft123mc@gmail.com Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" From: Chris Morgan Add documentation for Samsung AMS495QA01 panel (with Magnachip D53E6EA8966 controller IC). Signed-off-by: Chris Morgan Signed-off-by: Maya Matuszczyk Reviewed-by: Rob Herring --- .../display/panel/samsung,ams495qa01.yaml | 57 +++++++++++++++++++ 1 file changed, 57 insertions(+) create mode 100644 Documentation/devicetree/bindings/display/panel/samsung,ams495qa01.yaml diff --git a/Documentation/devicetree/bindings/display/panel/samsung,ams495qa01.yaml b/Documentation/devicetree/bindings/display/panel/samsung,ams495qa01.yaml new file mode 100644 index 000000000000..58fa073ce258 --- /dev/null +++ b/Documentation/devicetree/bindings/display/panel/samsung,ams495qa01.yaml @@ -0,0 +1,57 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/display/panel/samsung,ams495qa01.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Samsung AMS495QA01 panel with Magnachip D53E6EA8966 controller + +maintainers: + - Chris Morgan + +allOf: + - $ref: panel-common.yaml# + +properties: + compatible: + const: samsung,ams495qa01 + + reg: true + reset-gpios: + description: reset gpio, must be GPIO_ACTIVE_LOW + elvdd-supply: + description: regulator that supplies voltage to the panel display + enable-gpios: true + port: true + vdd-supply: + description: regulator that supplies voltage to panel logic + +required: + - compatible + - reg + - reset-gpios + - vdd-supply + +additionalProperties: false + +examples: + - | + #include + spi { + #address-cells = <1>; + #size-cells = <0>; + panel@0 { + compatible = "samsung,ams495qa01"; + reg = <0>; + reset-gpios = <&gpio4 0 GPIO_ACTIVE_LOW>; + vdd-supply = <&vcc_3v3>; + + port { + mipi_in_panel: endpoint { + remote-endpoint = <&mipi_out_panel>; + }; + }; + }; + }; + +... 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[76.244.6.13]) by smtp.gmail.com with ESMTPSA id v17-20020a05687105d100b0014866eb34cesm9317049oan.48.2023.01.12.09.54.05 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 12 Jan 2023 09:54:05 -0800 (PST) From: Chris Morgan To: dri-devel@lists.freedesktop.org Subject: [PATCH V10 3/4] drm/panel: Add Magnachip D53E6EA8966 Panel Driver Date: Thu, 12 Jan 2023 11:53:57 -0600 Message-Id: <20230112175358.421975-4-macroalpha82@gmail.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230112175358.421975-1-macroalpha82@gmail.com> References: <20230112175358.421975-1-macroalpha82@gmail.com> MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, Chris Morgan , krzysztof.kozlowski+dt@linaro.org, sam@ravnborg.org, linux-rockchip@lists.infradead.org, robh+dt@kernel.org, thierry.reding@gmail.com, tzimmermann@suse.de, maccraft123mc@gmail.com Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" From: Chris Morgan Support Magnachip D53E6EA8966 based panels such as the Samsung AMS495QA01 panel as found on the Anbernic RG503. Note this driver supports only the AMS495QA01 today which receives video signals via DSI, however it receives commands via 3-wire SPI using DBI. Signed-off-by: Chris Morgan Signed-off-by: Maya Matuszczyk --- drivers/gpu/drm/panel/Kconfig | 11 + drivers/gpu/drm/panel/Makefile | 1 + .../drm/panel/panel-magnachip-d53e6ea8966.c | 522 ++++++++++++++++++ 3 files changed, 534 insertions(+) create mode 100644 drivers/gpu/drm/panel/panel-magnachip-d53e6ea8966.c diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig index 737edcdf9eef..204b84a83604 100644 --- a/drivers/gpu/drm/panel/Kconfig +++ b/drivers/gpu/drm/panel/Kconfig @@ -298,6 +298,17 @@ config DRM_PANEL_LG_LG4573 Say Y here if you want to enable support for LG4573 RGB panel. To compile this driver as a module, choose M here. +config DRM_PANEL_MAGNACHIP_D53E6EA8966 + tristate "Magnachip D53E6EA8966 DSI panel" + depends on OF && SPI + depends on DRM_MIPI_DSI + depends on BACKLIGHT_CLASS_DEVICE + select DRM_MIPI_DBI + help + DRM panel driver for the Samsung AMS495QA01 panel controlled + with the Magnachip D53E6EA8966 panel IC. This panel receives + video data via DSI but commands via 9-bit SPI using DBI. + config DRM_PANEL_NEC_NL8048HL11 tristate "NEC NL8048HL11 RGB panel" depends on GPIOLIB && OF && SPI diff --git a/drivers/gpu/drm/panel/Makefile b/drivers/gpu/drm/panel/Makefile index f8f9d9f6a307..20de312aa5e9 100644 --- a/drivers/gpu/drm/panel/Makefile +++ b/drivers/gpu/drm/panel/Makefile @@ -27,6 +27,7 @@ obj-$(CONFIG_DRM_PANEL_LEADTEK_LTK050H3146W) += panel-leadtek-ltk050h3146w.o obj-$(CONFIG_DRM_PANEL_LEADTEK_LTK500HD1829) += panel-leadtek-ltk500hd1829.o obj-$(CONFIG_DRM_PANEL_LG_LB035Q02) += panel-lg-lb035q02.o obj-$(CONFIG_DRM_PANEL_LG_LG4573) += panel-lg-lg4573.o +obj-$(CONFIG_DRM_PANEL_MAGNACHIP_D53E6EA8966) += panel-magnachip-d53e6ea8966.o obj-$(CONFIG_DRM_PANEL_NEC_NL8048HL11) += panel-nec-nl8048hl11.o obj-$(CONFIG_DRM_PANEL_NEWVISION_NV3051D) += panel-newvision-nv3051d.o obj-$(CONFIG_DRM_PANEL_NEWVISION_NV3052C) += panel-newvision-nv3052c.o diff --git a/drivers/gpu/drm/panel/panel-magnachip-d53e6ea8966.c b/drivers/gpu/drm/panel/panel-magnachip-d53e6ea8966.c new file mode 100644 index 000000000000..09ee12f0a147 --- /dev/null +++ b/drivers/gpu/drm/panel/panel-magnachip-d53e6ea8966.c @@ -0,0 +1,522 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Magnachip d53e6ea8966 MIPI-DSI panel driver + * Copyright (C) 2023 Chris Morgan + */ + +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include