From nobody Sun Feb 8 05:30:26 2026 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 EEE9AC7EE2C for ; Fri, 2 Jun 2023 10:21:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235314AbjFBKVm (ORCPT ); Fri, 2 Jun 2023 06:21:42 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45412 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235204AbjFBKVi (ORCPT ); Fri, 2 Jun 2023 06:21:38 -0400 Received: from mail-lj1-x22e.google.com (mail-lj1-x22e.google.com [IPv6:2a00:1450:4864:20::22e]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9A8BA194 for ; Fri, 2 Jun 2023 03:21:36 -0700 (PDT) Received: by mail-lj1-x22e.google.com with SMTP id 38308e7fff4ca-2afb2874e83so27138221fa.0 for ; Fri, 02 Jun 2023 03:21:36 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amarulasolutions.com; s=google; t=1685701294; x=1688293294; 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=2jBqOeBntw2+ThpWf4KE8BMuMRq2HYj3RR0u0oHiddc=; b=kDwCkNaE67Q0xUnrv6y3DR8jLIIS8R9c9QKIj9k4/HDG9shGyNJc2foYrF04sUyYzi wFf2hmqJMxPT9qwyw3s7IFZI9Z/9Su/GFyHb06gOC0kKp63hsWwD4ADpHRkRWIGPcUng 3IoJjsZ7X1XaHRY7eJBjBPRJRcW4sDECsPsC0= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1685701294; x=1688293294; 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=2jBqOeBntw2+ThpWf4KE8BMuMRq2HYj3RR0u0oHiddc=; b=jfGNcC3h/Fjw1AVv5QZNBIr2FaVLDfBFF4IRfXHdqO4oms1x0VX491jqo22TtoIdG1 NSv1xdpQpyJEcJo7nqBq6AsoHZN5ABDJNfaeYCOkk0E/bqYa3mXiwrhI/JB5gIdqk5O8 QCvgJQaOqoLOW/gNfxBSCZLESjZa1Uo1JDebBJm2oHX2pkyk7fXGIuycDGwF9rFLni/r IrcjhQJoUJSs6dVFQ7ZjPbXJKAMigzT+lCR8o2bl+aM+hQ1BuRg+hLQ+6eW6DcpjC4ml 8EkSZuK+cCk2jbexeGvN7wXv/Tqj+FiJam4ZxRS9EWPfUlzxKRn0KbGhcolu7TG7w8FI XB2g== X-Gm-Message-State: AC+VfDyOcsTpZHGPXkO2MnMoIvZwn+ABKsCC/bEqdGV5TVPkLzwOns0u QUNVaze8PX9hWVZGAg0mE4iB6pUaNv+7afWcNgAOuw== X-Google-Smtp-Source: ACHHUZ7qNYOTd62VO/6IL66B8KwBoBWo35rkkPU2puqC/C52R5d2ygI24jDexCF3WiO0CEv1gBe8iw== X-Received: by 2002:a2e:3a03:0:b0:2b1:abdb:8783 with SMTP id h3-20020a2e3a03000000b002b1abdb8783mr1002587lja.41.1685701294571; Fri, 02 Jun 2023 03:21:34 -0700 (PDT) Received: from dario-ThinkPad-T14s-Gen-2i.homenet.telecomitalia.it (host-95-248-31-20.retail.telecomitalia.it. [95.248.31.20]) by smtp.gmail.com with ESMTPSA id x24-20020aa7d398000000b0051499320435sm528887edq.14.2023.06.02.03.21.33 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 02 Jun 2023 03:21:34 -0700 (PDT) From: Dario Binacchi To: linux-kernel@vger.kernel.org Cc: Amarula patchwork , michael@amarulasolutions.com, Dario Binacchi , Alexandre Torgue , Conor Dooley , Krzysztof Kozlowski , Maxime Coquelin , Rob Herring , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-stm32@st-md-mailman.stormreply.com Subject: [PATCH v2 1/6] ARM: dts: stm32: add ltdc support on stm32f746 MCU Date: Fri, 2 Jun 2023 12:21:17 +0200 Message-Id: <20230602102123.3345587-2-dario.binacchi@amarulasolutions.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20230602102123.3345587-1-dario.binacchi@amarulasolutions.com> References: <20230602102123.3345587-1-dario.binacchi@amarulasolutions.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" Add LTDC (Lcd-tft Display Controller) support. Signed-off-by: Dario Binacchi --- (no changes since v1) arch/arm/boot/dts/stm32f746.dtsi | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/arch/arm/boot/dts/stm32f746.dtsi b/arch/arm/boot/dts/stm32f746= .dtsi index dc868e6da40e..9c4ba0b7f239 100644 --- a/arch/arm/boot/dts/stm32f746.dtsi +++ b/arch/arm/boot/dts/stm32f746.dtsi @@ -507,6 +507,16 @@ pwm { }; }; =20 + ltdc: display-controller@40016800 { + compatible =3D "st,stm32-ltdc"; + reg =3D <0x40016800 0x200>; + interrupts =3D <88>, <89>; + resets =3D <&rcc STM32F7_APB2_RESET(LTDC)>; + clocks =3D <&rcc 1 CLK_LCD>; + clock-names =3D "lcd"; + status =3D "disabled"; + }; + pwrcfg: power-config@40007000 { compatible =3D "st,stm32-power-config", "syscon"; reg =3D <0x40007000 0x400>; --=20 2.32.0 From nobody Sun Feb 8 05:30:26 2026 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 B6EF5C7EE24 for ; Fri, 2 Jun 2023 10:21:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235327AbjFBKVp (ORCPT ); Fri, 2 Jun 2023 06:21:45 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45428 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233982AbjFBKVj (ORCPT ); Fri, 2 Jun 2023 06:21:39 -0400 Received: from mail-ed1-x531.google.com (mail-ed1-x531.google.com [IPv6:2a00:1450:4864:20::531]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 139D5180 for ; Fri, 2 Jun 2023 03:21:38 -0700 (PDT) Received: by mail-ed1-x531.google.com with SMTP id 4fb4d7f45d1cf-5151934a4e3so2809373a12.1 for ; Fri, 02 Jun 2023 03:21:37 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amarulasolutions.com; s=google; t=1685701296; x=1688293296; 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=3QAQ0RCZfE4mrNQglSUgy3WeBMWWHrgZHNbJHgr6400=; b=MohSPCp+T2mvCwQJQkXDSr2pIIK7LMXED1x0wnhAoFrmm4pioP8C9Fn/ocKRM3MupC CI02i28lY02RqSnH2OZzpjdZoABhhGFzddmg8/goVFhG3mOlahW4m4iYu0WbNNGk/zvF iXyX4uwTIOY1CoqxTc9D+oePxqtntHmlW+ZS4= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1685701296; x=1688293296; 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=3QAQ0RCZfE4mrNQglSUgy3WeBMWWHrgZHNbJHgr6400=; b=SD3okflarI8oSJo4i+ECW7x2LB/5ktrHxUhF0KITWoa2YqRmoRBzqscmOh/f3mJOdf nLKXjPjGkpnOD3jbWjZH5okoR7gD5emKM7ivqC0WTiCbuEemUAXJx/seC3E2HYuWeeal WzVaJwSXesjIKpxupgvKDl5lAdAkNSSx/TOITaL0eJlVyQejH9M8B2SMGHNGMba8wMrh TQXL+8cRMSkR2LW2Ysd/y5iZ92vPfotQUcxRel5ONtHEdnJozHb6fYip/ROQp++EvReT AjaUeZGou5Q2v93ipKV0yX4JpNUiMFI93f4kvWAfZv3M1Rc+gmJkCdyKqz3uF4e5wc5E tOyg== X-Gm-Message-State: AC+VfDx2z/RaQrsQS5r1vk5DPSh6G8+hv1uTYMM5OTk6CkGfVT7SdHKP jKvbxDR9BBJwp8QekgS+vcka361RXfr2nQb+jRx/pg== X-Google-Smtp-Source: ACHHUZ4mSRyVJK7TLliTH0Gn8nnXNMMpX1PS+2bDrpqL11esL61U/z7qzKi946JmTQmikDOsCKgz4g== X-Received: by 2002:aa7:d441:0:b0:514:9e3c:d82e with SMTP id q1-20020aa7d441000000b005149e3cd82emr1755208edr.14.1685701296176; Fri, 02 Jun 2023 03:21:36 -0700 (PDT) Received: from dario-ThinkPad-T14s-Gen-2i.homenet.telecomitalia.it (host-95-248-31-20.retail.telecomitalia.it. [95.248.31.20]) by smtp.gmail.com with ESMTPSA id x24-20020aa7d398000000b0051499320435sm528887edq.14.2023.06.02.03.21.34 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 02 Jun 2023 03:21:35 -0700 (PDT) From: Dario Binacchi To: linux-kernel@vger.kernel.org Cc: Amarula patchwork , michael@amarulasolutions.com, Dario Binacchi , Alexandre Torgue , Conor Dooley , Krzysztof Kozlowski , Maxime Coquelin , Rob Herring , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-stm32@st-md-mailman.stormreply.com Subject: [PATCH v2 2/6] ARM: dts: stm32: add pin map for LTDC on stm32f7 Date: Fri, 2 Jun 2023 12:21:18 +0200 Message-Id: <20230602102123.3345587-3-dario.binacchi@amarulasolutions.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20230602102123.3345587-1-dario.binacchi@amarulasolutions.com> References: <20230602102123.3345587-1-dario.binacchi@amarulasolutions.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" Add pin configurations for using LTDC (LCD-tft Display Controller) on stm32f746-disco board. Signed-off-by: Dario Binacchi --- (no changes since v1) arch/arm/boot/dts/stm32f7-pinctrl.dtsi | 35 ++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) diff --git a/arch/arm/boot/dts/stm32f7-pinctrl.dtsi b/arch/arm/boot/dts/stm= 32f7-pinctrl.dtsi index 9f65403295ca..f3f90b9bcd61 100644 --- a/arch/arm/boot/dts/stm32f7-pinctrl.dtsi +++ b/arch/arm/boot/dts/stm32f7-pinctrl.dtsi @@ -365,6 +365,41 @@ pins2 { bias-pull-up; }; }; + + + ltdc_pins_a: ltdc-pins-a-0 { + pins { + pinmux =3D , /* LCD_B0 */ + , /* LCD_B4 */ + , /* LCD_VSYNC */ + , /* LCD_HSYNC */ + , /* LCD_CLK */ + , /* LCD_R0 */ + , /* LCD_R1 */ + , /* LCD_R2 */ + , /* LCD_R3 */ + , /* LCD_R4 */ + , /* LCD_R5 */ + , /* LCD_R6 */ + , /* LCD_R7 */ + , /* LCD_G0 */ + , /* LCD_G1 */ + , /* LCD_G2 */ + , /* LCD_G3 */ + , /* LCD_G4 */ + , /* LCD_B1 */ + , /* LCD_B2 */ + , /* LCD_B3 */ + , /* LCD_G5 */ + , /* LCD_G6 */ + , /* LCD_G7 */ + , /* LCD_B5 */ + , /* LCD_B6 */ + , /* LCD_B7 */ + ; /* LCD_DE */ + slew-rate =3D <2>; + }; + }; }; }; }; --=20 2.32.0 From nobody Sun Feb 8 05:30:26 2026 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 4B0F1C7EE29 for ; Fri, 2 Jun 2023 10:21:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234982AbjFBKVu (ORCPT ); Fri, 2 Jun 2023 06:21:50 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45440 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235309AbjFBKVk (ORCPT ); Fri, 2 Jun 2023 06:21:40 -0400 Received: from mail-ed1-x531.google.com (mail-ed1-x531.google.com [IPv6:2a00:1450:4864:20::531]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 754A6194 for ; Fri, 2 Jun 2023 03:21:39 -0700 (PDT) Received: by mail-ed1-x531.google.com with SMTP id 4fb4d7f45d1cf-51493ec65d8so2759070a12.2 for ; Fri, 02 Jun 2023 03:21:39 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amarulasolutions.com; s=google; t=1685701297; x=1688293297; 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=tlm5X0f1SJIUHEa+Ch7CRBAmlhS5LXsyaOP8GZ1/KKI=; b=dKNDTUc5GWxmNVpO0hSi+LT5wi86h1Qt4xjEcapRn/pCf5bEu4VvXaLEhGOqCbsemD 1GxvShFnnr5s80Jb8Ddo65hgCGg55+zcmpE8fjFyl+fHXMqreR9SMD/mHRb1mC6jtvkC addZVekgyLsnZlOZQgZfaIJRXy8Pm2lpJjTCA= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1685701297; x=1688293297; 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=tlm5X0f1SJIUHEa+Ch7CRBAmlhS5LXsyaOP8GZ1/KKI=; b=D1MtIWBTzzrAv8Rqed2YPX5B0SEcbOJj1hMh8B0itiwK5wjZgD6U51TizD2BcFoevr Qt4ugMo8yL3nEYfXUDO+d7XpX3kFTCLCi2qL13w3wVTppbiQSRvR8iwoimCgQAcyD5Ae bUJlU8sLAG8FTatT6CnO3lz9JAJ9hVLiYliRQFLK/s07JXbOq4EHq4LK6RL/PuEaFgzO nvIQrBfNH3QvKqMOuuXdj9e9viC72viK51cIJgOdBVcDDE8bwHrbdPqv9fpNkQ5ldAVl kxiRLK5vTAUqlrax+HPHZGPrYNC0PDXjoDCCF2ruy98yYcw9K9D4r6kBOBo7J4QCX2K0 xSbw== X-Gm-Message-State: AC+VfDxP/X1jMJngvhNbnHrNVbodPXNuxftt8TD0wlH/T8ck80ASXiH5 RYJl0+HcT7AojoP6PnrTbgfsv35P5hZbvlvvPc7g6w== X-Google-Smtp-Source: ACHHUZ6KUZCEHQmagmTjEK/HnGclXdX1cbLKZklW1ePFhWRcqd7vYKbYY6Cpp/PfHZR+wLKRik0eKA== X-Received: by 2002:aa7:c997:0:b0:50b:c630:a956 with SMTP id c23-20020aa7c997000000b0050bc630a956mr1635028edt.17.1685701297624; Fri, 02 Jun 2023 03:21:37 -0700 (PDT) Received: from dario-ThinkPad-T14s-Gen-2i.homenet.telecomitalia.it (host-95-248-31-20.retail.telecomitalia.it. [95.248.31.20]) by smtp.gmail.com with ESMTPSA id x24-20020aa7d398000000b0051499320435sm528887edq.14.2023.06.02.03.21.36 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 02 Jun 2023 03:21:37 -0700 (PDT) From: Dario Binacchi To: linux-kernel@vger.kernel.org Cc: Amarula patchwork , michael@amarulasolutions.com, Dario Binacchi , Alexandre Torgue , Conor Dooley , Krzysztof Kozlowski , Maxime Coquelin , Rob Herring , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-stm32@st-md-mailman.stormreply.com Subject: [PATCH v2 3/6] ARM: dts: stm32: support display on stm32f746-disco board Date: Fri, 2 Jun 2023 12:21:19 +0200 Message-Id: <20230602102123.3345587-4-dario.binacchi@amarulasolutions.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20230602102123.3345587-1-dario.binacchi@amarulasolutions.com> References: <20230602102123.3345587-1-dario.binacchi@amarulasolutions.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" Add support to Rocktech RK043FN48H display on stm32f746-disco board. Signed-off-by: Dario Binacchi --- (no changes since v1) arch/arm/boot/dts/stm32f746-disco.dts | 51 +++++++++++++++++++++++++++ 1 file changed, 51 insertions(+) diff --git a/arch/arm/boot/dts/stm32f746-disco.dts b/arch/arm/boot/dts/stm3= 2f746-disco.dts index c11616ed5fc6..cda423b6a874 100644 --- a/arch/arm/boot/dts/stm32f746-disco.dts +++ b/arch/arm/boot/dts/stm32f746-disco.dts @@ -60,10 +60,41 @@ memory@c0000000 { reg =3D <0xC0000000 0x800000>; }; =20 + reserved-memory { + #address-cells =3D <1>; + #size-cells =3D <1>; + ranges; + + linux,cma { + compatible =3D "shared-dma-pool"; + no-map; + size =3D <0x80000>; + linux,dma-default; + }; + }; + aliases { serial0 =3D &usart1; }; =20 + backlight: backlight { + compatible =3D "gpio-backlight"; + gpios =3D <&gpiok 3 GPIO_ACTIVE_HIGH>; + status =3D "okay"; + }; + + panel_rgb: panel-rgb { + compatible =3D "rocktech,rk043fn48h"; + backlight =3D <&backlight>; + enable-gpios =3D <&gpioi 12 GPIO_ACTIVE_HIGH>; + status =3D "okay"; + port { + panel_in_rgb: endpoint { + remote-endpoint =3D <<dc_out_rgb>; + }; + }; + }; + usbotg_hs_phy: usb-phy { #phy-cells =3D <0>; compatible =3D "usb-nop-xceiv"; @@ -99,6 +130,26 @@ &i2c1 { status =3D "okay"; }; =20 +&dma1 { + status =3D "okay"; +}; + +&dma2 { + status =3D "okay"; +}; + +<dc { + pinctrl-0 =3D <<dc_pins_a>; + pinctrl-names =3D "default"; + status =3D "okay"; + + port { + ltdc_out_rgb: endpoint { + remote-endpoint =3D <&panel_in_rgb>; + }; + }; +}; + &sdio1 { status =3D "okay"; vmmc-supply =3D <&mmc_vcard>; --=20 2.32.0 From nobody Sun Feb 8 05:30:26 2026 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 9490EC7EE24 for ; Fri, 2 Jun 2023 10:21:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235333AbjFBKVx (ORCPT ); Fri, 2 Jun 2023 06:21:53 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45472 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235317AbjFBKVn (ORCPT ); Fri, 2 Jun 2023 06:21:43 -0400 Received: from mail-ed1-x535.google.com (mail-ed1-x535.google.com [IPv6:2a00:1450:4864:20::535]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 42C09196 for ; Fri, 2 Jun 2023 03:21:41 -0700 (PDT) Received: by mail-ed1-x535.google.com with SMTP id 4fb4d7f45d1cf-5149e65c218so2751071a12.2 for ; Fri, 02 Jun 2023 03:21:41 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amarulasolutions.com; s=google; t=1685701299; x=1688293299; 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=+N6ncdPhuJx70XZ6yjaTOtXW/wJdhXZgpqu86CyLnmg=; b=FN+wcbGOSq0oaAGO68O3XS3iH/IcziIzYBzGbvG0X5hp7SCpf4EJJNAg1ZHmseAnew VPCMtcRQpkV5+FX+hVA0hl3xoaUG8TEfI/J/HgK+jzruhXOyLLGtoLcSSQIjLRIjohII VKnbARjYi/zDstgJJ4cvJWtQugRvzYaC5omoE= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1685701299; x=1688293299; 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=+N6ncdPhuJx70XZ6yjaTOtXW/wJdhXZgpqu86CyLnmg=; b=FngLqwiNesdtaz1Nod8AsoAWy/V+pbEBmJrhXw2ljMkBOmGP/mgb7nYqHiJn1dqcxW WHD16d6da9+re8n2iY/9/g6XJh0CmUDG3ACP8ILQ5mPaVLMQCVTBUyT5RKNlQ64FigKe X3Z5FborUYCWfTZo+hFUbjhyjBH5r8i9Eh5j2xF8FKMSAbur8h6gPTvfmh9pYZb3d/st Ry1FxDlqifAnR7lGr8H3vQ4fxGnTus0VWma4BsveE7W+7fwyuV0nLVVW2WxhSN2oINWu atrlcMh6RClipyQhGDPBiJTkhg3GXuQi490nXKxlSSE2s3YPaG5Au97M88JyeSAGeQHv n+Mw== X-Gm-Message-State: AC+VfDwCigrk9IlXdsN6nOmxsiff3PYT27SMU/v8rWWyHdgwicHL8a9P rJ7RlD+nMdWw7mpxuTZojbXjO93+1uSI5KyKPTczOw== X-Google-Smtp-Source: ACHHUZ4cxTRC+aOD1sVygvyNLnQtq32ncqv67n9fRQJ5jpcnMNundXDEtA2HWACi2ZfzZnSq8+CJvw== X-Received: by 2002:aa7:d817:0:b0:514:9d17:d6e8 with SMTP id v23-20020aa7d817000000b005149d17d6e8mr1521068edq.26.1685701299310; Fri, 02 Jun 2023 03:21:39 -0700 (PDT) Received: from dario-ThinkPad-T14s-Gen-2i.homenet.telecomitalia.it (host-95-248-31-20.retail.telecomitalia.it. [95.248.31.20]) by smtp.gmail.com with ESMTPSA id x24-20020aa7d398000000b0051499320435sm528887edq.14.2023.06.02.03.21.37 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 02 Jun 2023 03:21:38 -0700 (PDT) From: Dario Binacchi To: linux-kernel@vger.kernel.org Cc: Amarula patchwork , michael@amarulasolutions.com, Dario Binacchi , Conor Dooley , Conor Dooley , Daniel Vetter , David Airlie , Krzysztof Kozlowski , Neil Armstrong , Rob Herring , Sam Ravnborg , Thierry Reding , devicetree@vger.kernel.org, dri-devel@lists.freedesktop.org Subject: [PATCH v2 4/6] dt-bindings: display: simple: add Rocktech RK043FN48H Date: Fri, 2 Jun 2023 12:21:20 +0200 Message-Id: <20230602102123.3345587-5-dario.binacchi@amarulasolutions.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20230602102123.3345587-1-dario.binacchi@amarulasolutions.com> References: <20230602102123.3345587-1-dario.binacchi@amarulasolutions.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" Add compatible to panel-simple for Rocktech Displays Limited RK043FN48H 4.3" 480x272 LCD-TFT panel. Signed-off-by: Dario Binacchi Acked-by: Conor Dooley --- Changes in v2: - Add 'Acked-by' tag of Conor Dooley. .../devicetree/bindings/display/panel/panel-simple.yaml | 2 ++ 1 file changed, 2 insertions(+) diff --git a/Documentation/devicetree/bindings/display/panel/panel-simple.y= aml b/Documentation/devicetree/bindings/display/panel/panel-simple.yaml index 01560fe226dd..bd6a92d2b41c 100644 --- a/Documentation/devicetree/bindings/display/panel/panel-simple.yaml +++ b/Documentation/devicetree/bindings/display/panel/panel-simple.yaml @@ -280,6 +280,8 @@ properties: - rocktech,rk101ii01d-ct # Rocktech Display Ltd. RK070ER9427 800(RGB)x480 TFT LCD panel - rocktech,rk070er9427 + # Rocktech Display Ltd. RK043FN48H 4.3" 480x272 LCD-TFT panel + - rocktech,rk043fn48h # Samsung 13.3" FHD (1920x1080 pixels) eDP AMOLED panel - samsung,atna33xc20 # Samsung 12.2" (2560x1600 pixels) TFT LCD panel --=20 2.32.0 From nobody Sun Feb 8 05:30:26 2026 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 64781C7EE24 for ; Fri, 2 Jun 2023 10:21:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234217AbjFBKV5 (ORCPT ); Fri, 2 Jun 2023 06:21:57 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45490 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235323AbjFBKVo (ORCPT ); Fri, 2 Jun 2023 06:21:44 -0400 Received: from mail-lj1-x230.google.com (mail-lj1-x230.google.com [IPv6:2a00:1450:4864:20::230]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2FF86198 for ; Fri, 2 Jun 2023 03:21:43 -0700 (PDT) Received: by mail-lj1-x230.google.com with SMTP id 38308e7fff4ca-2b1b1635661so3805291fa.0 for ; Fri, 02 Jun 2023 03:21:43 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amarulasolutions.com; s=google; t=1685701301; x=1688293301; 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=QVzHDRPJNZ9IK1tuBeqT97BbWRZLa0+X8FPJl3jJUF8=; b=mMi7B8OLzoBy0XdAAy57UW6vUUYVs6mZUY0Eqj4wxd1azuZfGhxtdE7mSDOZMCdJVR IB2BbJdt79R6mNQXU43ev6H5pDzb6kBJbz06J8MyOaRw5PRn/2IQxDISZtggxt2HmCS0 YnQ66M5U89s0AEJmmT1tOXh+wO2SEOodTG4jo= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1685701301; x=1688293301; 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=QVzHDRPJNZ9IK1tuBeqT97BbWRZLa0+X8FPJl3jJUF8=; b=CHuT4p9Np/gYBLb9SJXpcWhgt45cq0p5B0P7I4mQipA6u0XgfnRYJUhPOLEGSHfpVh oEbTbDplBNu/a83OYN9Y1VxvtuPWTK7+WUvlDabOzCKF7xloE+DlC+qUEgi9leDDKlgL mlJfptQ3telWCcEikr3HL9UeVumOuxJ3R8iHa3Eq7l258Dg5TW63JdldNmfIB/ugYTvu 6vXvx6ycJm+7xAOF2W+GgOS8B/VjEk4fYNUtmClId2ASd6WzZhcJyTZU4oVoJwza3501 Ap1N5V9Nc131yGKfptedH2GAk0gVkZVttmfR+lAvsiG0YzqtL67xTnTU4dvBO9gwv6/s /w1Q== X-Gm-Message-State: AC+VfDwUva7BYZ3qgA1srwY6bXFLs9ZI55zxQZcoozFICPz6B0keRzM8 MlA5T3NCE5OmV79YTPBrJWv0XR6fjIK1jcgz+JnSEQ== X-Google-Smtp-Source: ACHHUZ6Ed45kcIADNWUp9NNVg26d/KpiaFAlx21eReeknhNRdp8zZ84PfjAecQZ4ZkYv7TO8lp7/GA== X-Received: by 2002:a2e:8e89:0:b0:2ac:d51f:2d60 with SMTP id z9-20020a2e8e89000000b002acd51f2d60mr1241778ljk.33.1685701301140; Fri, 02 Jun 2023 03:21:41 -0700 (PDT) Received: from dario-ThinkPad-T14s-Gen-2i.homenet.telecomitalia.it (host-95-248-31-20.retail.telecomitalia.it. [95.248.31.20]) by smtp.gmail.com with ESMTPSA id x24-20020aa7d398000000b0051499320435sm528887edq.14.2023.06.02.03.21.39 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 02 Jun 2023 03:21:40 -0700 (PDT) From: Dario Binacchi To: linux-kernel@vger.kernel.org Cc: Amarula patchwork , michael@amarulasolutions.com, Dario Binacchi , kernel test robot , Daniel Vetter , David Airlie , Neil Armstrong , Sam Ravnborg , dri-devel@lists.freedesktop.org Subject: [PATCH v2 5/6] drm/panel: simple: add support for Rocktech RK043FN48H panel Date: Fri, 2 Jun 2023 12:21:21 +0200 Message-Id: <20230602102123.3345587-6-dario.binacchi@amarulasolutions.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20230602102123.3345587-1-dario.binacchi@amarulasolutions.com> References: <20230602102123.3345587-1-dario.binacchi@amarulasolutions.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" Add support for Rocktech RK043FN48H 4.3" (480x272) LCD-TFT panel. Signed-off-by: Dario Binacchi Reported-by: kernel test robot Closes: https://lore.kernel.org/oe-kbuild-all/202306020343.jNTWeM0P-lkp@int= el.com/ --- Changes in v2: - Fix build warning reported by kernel test robot. - Add 'Reported-by' tag of kernel test robot. drivers/gpu/drm/panel/panel-simple.c | 29 ++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/p= anel-simple.c index 065f378bba9d..3b10e78d07d9 100644 --- a/drivers/gpu/drm/panel/panel-simple.c +++ b/drivers/gpu/drm/panel/panel-simple.c @@ -3188,6 +3188,32 @@ static const struct panel_desc qishenglong_gopher2b_= lcd =3D { .connector_type =3D DRM_MODE_CONNECTOR_DPI, }; =20 +static const struct display_timing rocktech_rk043fn48h_timing =3D { + .pixelclock =3D { 6000000, 9000000, 12000000 }, + .hactive =3D { 480, 480, 480 }, + .hback_porch =3D { 8, 43, 43 }, + .hfront_porch =3D { 2, 8, 8 }, + .hsync_len =3D { 1, 1, 1 }, + .vactive =3D { 272, 272, 272 }, + .vback_porch =3D { 2, 12, 12 }, + .vfront_porch =3D { 1, 4, 4 }, + .vsync_len =3D { 1, 10, 10 }, + .flags =3D DISPLAY_FLAGS_VSYNC_LOW | DISPLAY_FLAGS_HSYNC_LOW | + DISPLAY_FLAGS_DE_HIGH | DISPLAY_FLAGS_PIXDATA_POSEDGE, +}; + +static const struct panel_desc rocktech_rk043fn48h =3D { + .timings =3D &rocktech_rk043fn48h_timing, + .num_timings =3D 1, + .bpc =3D 8, + .size =3D { + .width =3D 95, + .height =3D 54, + }, + .bus_format =3D MEDIA_BUS_FMT_RGB888_1X24, + .connector_type =3D DRM_MODE_CONNECTOR_DPI, +}; + static const struct display_timing rocktech_rk070er9427_timing =3D { .pixelclock =3D { 26400000, 33300000, 46800000 }, .hactive =3D { 800, 800, 800 }, @@ -4218,6 +4244,9 @@ static const struct of_device_id platform_of_match[] = =3D { }, { .compatible =3D "qishenglong,gopher2b-lcd", .data =3D &qishenglong_gopher2b_lcd, + }, { + .compatible =3D "rocktech,rk043fn48h", + .data =3D &rocktech_rk043fn48h, }, { .compatible =3D "rocktech,rk070er9427", .data =3D &rocktech_rk070er9427, --=20 2.32.0 From nobody Sun Feb 8 05:30:26 2026 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 6A8B2C7EE24 for ; Fri, 2 Jun 2023 10:22:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235338AbjFBKWC (ORCPT ); Fri, 2 Jun 2023 06:22:02 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45516 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234526AbjFBKVq (ORCPT ); Fri, 2 Jun 2023 06:21:46 -0400 Received: from mail-lf1-x134.google.com (mail-lf1-x134.google.com [IPv6:2a00:1450:4864:20::134]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C2B3E18C for ; Fri, 2 Jun 2023 03:21:44 -0700 (PDT) Received: by mail-lf1-x134.google.com with SMTP id 2adb3069b0e04-4f60a27c4a2so2011213e87.2 for ; Fri, 02 Jun 2023 03:21:44 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amarulasolutions.com; s=google; t=1685701302; x=1688293302; 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=yAW+zzizoPdH0S/aO5WCXuWp95MvJ4568t/x7rERkZ8=; b=GsIwW50OWWABkFl4+MuMJVsJnIxd4RnUEQwdl1LBq+pD8w0HebLB/EDl2doqWRzJ8d FUc1iu7tzIbfsEjTdGKjveBeIhM3zz7X0KyRVROnmgYdIZH/WJXnskct5oE9wQHVFSwh lNzJ/DZ81S3JWUisdMUcVi1iR/gQGgqeymMQg= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1685701302; x=1688293302; 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=yAW+zzizoPdH0S/aO5WCXuWp95MvJ4568t/x7rERkZ8=; b=Hw3r5STD/1MUqQ7nali+P3HPZNPErI9+NOeKAPdpDlK0RknkfxBkQBvtXzp2oX+st2 O7+OSylM1FrCNDEvBwki+YCEdw5DYCI6cU3yWCenavykmP5MHj2xzmVJft4TZMRFCFIS LiOqs9ULoepEoNtglhzMPath+OgCWRQbGLZyUSemumpZ+Cwdz8fRwCpB+KmZGJkiPzl1 qh0N8JeieUY+1IElvX8nPH5Dn00E5uGZWdJN+bKMS7Qi5sg3i3dbNZO4a0Lejk9+3WPB VFeH5qY8V2Fl0Lf8/4guuYwLpRwRrvJjCx0gZ1j8Fj9qAZ4PRHVD69HW1LpA9irX8S1g FU7Q== X-Gm-Message-State: AC+VfDy424H5PPlhIT02yy6TfnL1SFEUzoMBI+OjHDkdZFwysv1c1TOy KcaqrWs+5O6OMUdQkMSdO0HmsFBR60aj6K6Ijtr16g== X-Google-Smtp-Source: ACHHUZ4v/QjfVIurcf6EcYp74yUStSbnTwORv45UFzpMUVWYQmmjYWbUpX5dFUE23r1qClGmatwwkg== X-Received: by 2002:a2e:9216:0:b0:2a7:7d70:6bb with SMTP id k22-20020a2e9216000000b002a77d7006bbmr1425706ljg.2.1685701302702; Fri, 02 Jun 2023 03:21:42 -0700 (PDT) Received: from dario-ThinkPad-T14s-Gen-2i.homenet.telecomitalia.it (host-95-248-31-20.retail.telecomitalia.it. [95.248.31.20]) by smtp.gmail.com with ESMTPSA id x24-20020aa7d398000000b0051499320435sm528887edq.14.2023.06.02.03.21.41 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 02 Jun 2023 03:21:42 -0700 (PDT) From: Dario Binacchi To: linux-kernel@vger.kernel.org Cc: Amarula patchwork , michael@amarulasolutions.com, Dario Binacchi , Alexandre Torgue , Daniel Vetter , David Airlie , Maxime Coquelin , Philippe Cornu , Raphael Gallais-Pou , Yannick Fertre , dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, linux-stm32@st-md-mailman.stormreply.com Subject: [PATCH v2 6/6] drm/stm: add an option to change FB bpp Date: Fri, 2 Jun 2023 12:21:22 +0200 Message-Id: <20230602102123.3345587-7-dario.binacchi@amarulasolutions.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20230602102123.3345587-1-dario.binacchi@amarulasolutions.com> References: <20230602102123.3345587-1-dario.binacchi@amarulasolutions.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" Boards that use the STM32F{4,7} series have limited amounts of RAM. The added parameter allows users to size, within certain limits, the memory footprint required by the framebuffer. Signed-off-by: Dario Binacchi --- (no changes since v1) drivers/gpu/drm/stm/drv.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/stm/drv.c b/drivers/gpu/drm/stm/drv.c index 422220df7d8c..65be2b442a6a 100644 --- a/drivers/gpu/drm/stm/drv.c +++ b/drivers/gpu/drm/stm/drv.c @@ -30,6 +30,11 @@ #define STM_MAX_FB_WIDTH 2048 #define STM_MAX_FB_HEIGHT 2048 /* same as width to handle orientation */ =20 +static uint stm_bpp =3D 16; + +MODULE_PARM_DESC(bpp, "bits-per-pixel (default: 16)"); +module_param_named(bpp, stm_bpp, uint, 0644); + static const struct drm_mode_config_funcs drv_mode_config_funcs =3D { .fb_create =3D drm_gem_fb_create, .atomic_check =3D drm_atomic_helper_check, @@ -93,6 +98,7 @@ static int drv_load(struct drm_device *ddev) ddev->mode_config.min_height =3D 0; ddev->mode_config.max_width =3D STM_MAX_FB_WIDTH; ddev->mode_config.max_height =3D STM_MAX_FB_HEIGHT; + ddev->mode_config.preferred_depth =3D stm_bpp; ddev->mode_config.funcs =3D &drv_mode_config_funcs; ddev->mode_config.normalize_zpos =3D true; =20 @@ -203,7 +209,7 @@ static int stm_drm_platform_probe(struct platform_devic= e *pdev) if (ret) goto err_put; =20 - drm_fbdev_dma_setup(ddev, 16); + drm_fbdev_dma_setup(ddev, stm_bpp); =20 return 0; =20 --=20 2.32.0