From patchwork Fri Mar 11 17:02:37 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christophe Branchereau X-Patchwork-Id: 12778394 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 37195C4332F for ; Fri, 11 Mar 2022 17:03:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1350509AbiCKREB (ORCPT ); Fri, 11 Mar 2022 12:04:01 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38108 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1350508AbiCKREA (ORCPT ); Fri, 11 Mar 2022 12:04:00 -0500 Received: from mail-wr1-x42b.google.com (mail-wr1-x42b.google.com [IPv6:2a00:1450:4864:20::42b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7F983A9E2D; Fri, 11 Mar 2022 09:02:56 -0800 (PST) Received: by mail-wr1-x42b.google.com with SMTP id u10so13865582wra.9; 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Fri, 11 Mar 2022 09:02:54 -0800 (PST) Received: from monk.home ([2a01:cb10:430:ec00:4737:d56e:186b:af1]) by smtp.gmail.com with ESMTPSA id z5-20020a05600c0a0500b0037bb8df81a2sm14067733wmp.13.2022.03.11.09.02.53 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 11 Mar 2022 09:02:54 -0800 (PST) From: Christophe Branchereau To: Paul Cercueil , David Airlie , Daniel Vetter , Thierry Reding , Sam Ravnborg , Rob Herring Cc: linux-kernel@vger.kernel.org, linux-mips@vger.kernel.org, dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org Subject: [PATCH v4 1/4] drm/ingenic : add ingenic_drm_bridge_atomic_enable Date: Fri, 11 Mar 2022 18:02:37 +0100 Message-Id: <20220311170240.173846-2-cbranchereau@gmail.com> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220311170240.173846-1-cbranchereau@gmail.com> References: <20220311170240.173846-1-cbranchereau@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-mips@vger.kernel.org This allows the CRTC to be enabled after panels have slept out, and before their display is turned on, solving a graphical bug on the newvision nv3502c Signed-off-by: Christophe Branchereau --- drivers/gpu/drm/ingenic/ingenic-drm-drv.c | 19 +++++++++++++------ 1 file changed, 13 insertions(+), 6 deletions(-) diff --git a/drivers/gpu/drm/ingenic/ingenic-drm-drv.c b/drivers/gpu/drm/ingenic/ingenic-drm-drv.c index dcf44cb00821..51512f41263e 100644 --- a/drivers/gpu/drm/ingenic/ingenic-drm-drv.c +++ b/drivers/gpu/drm/ingenic/ingenic-drm-drv.c @@ -226,6 +226,18 @@ static int ingenic_drm_update_pixclk(struct notifier_block *nb, } } +static void ingenic_drm_bridge_atomic_enable(struct drm_bridge *bridge, + struct drm_bridge_state *old_bridge_state) +{ + struct ingenic_drm *priv = drm_device_get_priv(bridge->dev); + + regmap_write(priv->map, JZ_REG_LCD_STATE, 0); + + regmap_update_bits(priv->map, JZ_REG_LCD_CTRL, + JZ_LCD_CTRL_ENABLE | JZ_LCD_CTRL_DISABLE, + JZ_LCD_CTRL_ENABLE); +} + static void ingenic_drm_crtc_atomic_enable(struct drm_crtc *crtc, struct drm_atomic_state *state) { @@ -237,17 +249,11 @@ static void ingenic_drm_crtc_atomic_enable(struct drm_crtc *crtc, if (WARN_ON(IS_ERR(priv_state))) return; - regmap_write(priv->map, JZ_REG_LCD_STATE, 0); - /* Set addresses of our DMA descriptor chains */ next_id = priv_state->use_palette ? HWDESC_PALETTE : 0; regmap_write(priv->map, JZ_REG_LCD_DA0, dma_hwdesc_addr(priv, next_id)); regmap_write(priv->map, JZ_REG_LCD_DA1, dma_hwdesc_addr(priv, 1)); - regmap_update_bits(priv->map, JZ_REG_LCD_CTRL, - JZ_LCD_CTRL_ENABLE | JZ_LCD_CTRL_DISABLE, - JZ_LCD_CTRL_ENABLE); - drm_crtc_vblank_on(crtc); } @@ -968,6 +974,7 @@ static const struct drm_encoder_helper_funcs ingenic_drm_encoder_helper_funcs = static const struct drm_bridge_funcs ingenic_drm_bridge_funcs = { .attach = ingenic_drm_bridge_attach, + .atomic_enable = ingenic_drm_bridge_atomic_enable, .atomic_check = ingenic_drm_bridge_atomic_check, .atomic_reset = drm_atomic_helper_bridge_reset, .atomic_duplicate_state = drm_atomic_helper_bridge_duplicate_state, From patchwork Fri Mar 11 17:02:38 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christophe Branchereau X-Patchwork-Id: 12778395 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 D6268C433FE for ; Fri, 11 Mar 2022 17:03:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1350520AbiCKREG (ORCPT ); Fri, 11 Mar 2022 12:04:06 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38246 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1350521AbiCKRED (ORCPT ); Fri, 11 Mar 2022 12:04:03 -0500 Received: from mail-wm1-x32d.google.com (mail-wm1-x32d.google.com [IPv6:2a00:1450:4864:20::32d]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DF947B0D36; Fri, 11 Mar 2022 09:02:58 -0800 (PST) Received: by mail-wm1-x32d.google.com with SMTP id i66so5452722wma.5; Fri, 11 Mar 2022 09:02:58 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=mCuWMYhNtCMokvR9SkFl+dh4F1YeiqfMkn0EViz8Ang=; b=c7xpMQhzs4QIEOUHwhAAYuwiWrZT3+u5s+4394t9fe250Ge9+lPoL+2t3w1Zm/pnrK rF+sOIBRcM/rsMYBffHgFi+2LDgmWsx8qyXGZDAE7ZAke2EhnYCn4VZHtUrf0oap0+E0 qAoefv23ICSp6goQPNMGbX/2npExe7ZLJOlovpIvpAhAJI/Ijxi3Ftvnjf9O6fGWYg3a xg/crPqtz9Ws50bjDNLa+IIsGkn57/EDKLwcTlRXGq7Hhvvrj5Qs9Ne8DX/dzdwBO+Hp rUozkEmOrtkOjINlPUHzGMTUNtyounddQeegx2KG1n8y24Ipq418SPU7XJ8Bo9I3q7OS bT0g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=mCuWMYhNtCMokvR9SkFl+dh4F1YeiqfMkn0EViz8Ang=; b=mK9+T9h86+e1rPG15IcVwTff4wZ4TFJTN5nrjfV+AReX2upBR0iqyAqqTTW4YJuP3t e75HAVLreYSNPaWhrmszPsZ15jDDGIrY3XuNLzGLJo5mPPmXJrhlx+tRJndQy38ahDQg vhgz5NUIIKAFd9NUZ5WNGIFblPOagVWO0P0tKmg7ma403VZvdaTC7WSxQgDDNBuJCdUn 9O/ycyvIvqlBKgDqlBqCrzkBukcgC2vXvjfOnaqNeWAirv7k9WvjZ3xt0wRkhl3k05s4 gXd5qx8IVAqdcDLM+IZd2sF9fGAEDB+F9u6KvtNZYLVQWN6f8iSFvZXezhBT8sXX/1u7 /m/w== X-Gm-Message-State: AOAM532RUSmXl3JPitId77/jCzIBxA5TadyjIa1thySqip7QsW1aWZgd WXO1udKaT5vvldkup5q7/HU= X-Google-Smtp-Source: ABdhPJzSXpY8ayJFppY53g7gLVP4tnT0Fu4B/axvLS0WIY5mdTauByD0P+qqwASW/HmpnDYLFAijIw== X-Received: by 2002:a05:600c:4f87:b0:389:e648:1ee9 with SMTP id n7-20020a05600c4f8700b00389e6481ee9mr6336352wmq.77.1647018177278; Fri, 11 Mar 2022 09:02:57 -0800 (PST) Received: from monk.home ([2a01:cb10:430:ec00:4737:d56e:186b:af1]) by smtp.gmail.com with ESMTPSA id z5-20020a05600c0a0500b0037bb8df81a2sm14067733wmp.13.2022.03.11.09.02.56 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 11 Mar 2022 09:02:56 -0800 (PST) From: Christophe Branchereau To: Paul Cercueil , David Airlie , Daniel Vetter , Thierry Reding , Sam Ravnborg , Rob Herring Cc: linux-kernel@vger.kernel.org, linux-mips@vger.kernel.org, dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org Subject: [PATCH v4 2/4] drm/panel: Add panel driver for NewVision NV3052C based LCDs Date: Fri, 11 Mar 2022 18:02:38 +0100 Message-Id: <20220311170240.173846-3-cbranchereau@gmail.com> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220311170240.173846-1-cbranchereau@gmail.com> References: <20220311170240.173846-1-cbranchereau@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-mips@vger.kernel.org This driver supports the NewVision NV3052C based LCDs. Right now, it only supports the LeadTek LTK035C5444T 2.4" 640x480 TFT LCD panel, which can be found in the Anbernic RG-350M handheld console. Signed-off-by: Christophe Branchereau Reviewed-by: Sam Ravnborg --- drivers/gpu/drm/panel/Kconfig | 9 + drivers/gpu/drm/panel/Makefile | 1 + .../gpu/drm/panel/panel-newvision-nv3052c.c | 497 ++++++++++++++++++ 3 files changed, 507 insertions(+) create mode 100644 drivers/gpu/drm/panel/panel-newvision-nv3052c.c diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig index bb2e47229c68..40084f709789 100644 --- a/drivers/gpu/drm/panel/Kconfig +++ b/drivers/gpu/drm/panel/Kconfig @@ -283,6 +283,15 @@ config DRM_PANEL_NEC_NL8048HL11 panel (found on the Zoom2/3/3630 SDP boards). To compile this driver as a module, choose M here. +config DRM_PANEL_NEWVISION_NV3052C + tristate "NewVision NV3052C RGB/SPI panel" + depends on OF && SPI + depends on BACKLIGHT_CLASS_DEVICE + select DRM_MIPI_DBI + help + Say Y here if you want to enable support for the panels built + around the NewVision NV3052C display controller. + config DRM_PANEL_NOVATEK_NT35510 tristate "Novatek NT35510 RGB panel driver" depends on OF diff --git a/drivers/gpu/drm/panel/Makefile b/drivers/gpu/drm/panel/Makefile index 5740911f637c..42a7ab54234b 100644 --- a/drivers/gpu/drm/panel/Makefile +++ b/drivers/gpu/drm/panel/Makefile @@ -26,6 +26,7 @@ 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_NEC_NL8048HL11) += panel-nec-nl8048hl11.o +obj-$(CONFIG_DRM_PANEL_NEWVISION_NV3052C) += panel-newvision-nv3052c.o obj-$(CONFIG_DRM_PANEL_NOVATEK_NT35510) += panel-novatek-nt35510.o obj-$(CONFIG_DRM_PANEL_NOVATEK_NT35560) += panel-novatek-nt35560.o obj-$(CONFIG_DRM_PANEL_NOVATEK_NT35950) += panel-novatek-nt35950.o diff --git a/drivers/gpu/drm/panel/panel-newvision-nv3052c.c b/drivers/gpu/drm/panel/panel-newvision-nv3052c.c new file mode 100644 index 000000000000..fc31df0dee12 --- /dev/null +++ b/drivers/gpu/drm/panel/panel-newvision-nv3052c.c @@ -0,0 +1,497 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * NevVision NV3052C IPS LCD panel driver + * + * Copyright (C) 2020, Paul Cercueil + * Copyright (C) 2022, Christophe Branchereau + */ + +#include +#include +#include +#include +#include +#include +#include +#include + +#include