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[90.182.211.1]) by smtp.gmail.com with ESMTPSA id cw13-20020a056000090d00b003112f836d4esm15266322wrb.85.2023.06.29.01.37.35 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 29 Jun 2023 01:37:36 -0700 (PDT) From: Dario Binacchi To: linux-kernel@vger.kernel.org Cc: michael@amarulasolutions.com, Amarula patchwork , Philippe Cornu , Raphael Gallais-Pou , 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 v5 1/3] ARM: dts: stm32: add ltdc support on stm32f746 MCU Date: Thu, 29 Jun 2023 10:37:24 +0200 Message-Id: <20230629083726.84910-2-dario.binacchi@amarulasolutions.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20230629083726.84910-1-dario.binacchi@amarulasolutions.com> References: <20230629083726.84910-1-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 Reviewed-by: Rapha=C3=ABl Gallais-Pou --- (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 05:30:29 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 54C9AEB64DC for ; Thu, 29 Jun 2023 08:42:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232593AbjF2Img (ORCPT ); Thu, 29 Jun 2023 04:42:36 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52420 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231269AbjF2IlN (ORCPT ); Thu, 29 Jun 2023 04:41:13 -0400 Received: from mail-lf1-x12c.google.com (mail-lf1-x12c.google.com [IPv6:2a00:1450:4864:20::12c]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1FC793C3E for ; Thu, 29 Jun 2023 01:37:43 -0700 (PDT) Received: by mail-lf1-x12c.google.com with SMTP id 2adb3069b0e04-4f86fbe5e4fso602408e87.2 for ; Thu, 29 Jun 2023 01:37:43 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amarulasolutions.com; s=google; t=1688027861; x=1690619861; 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=VnEheSovvunB6I3AktXE1UaU+sD3f90l2AKOrWC4PB8=; b=oCEJRBlG0q5Ikznr8GnTiR7wyzuqUQJcL9dD0uLR9k1UXS1TZdpar3ejEUbVR+bDH6 43CxGZR5xJ2xDm5CrSisUeIA08iUGV81j12q/2VL+/d53Y16nX3ROAHyE5J+zxR8UyWR 7h7G2JGf4Is/EMG4PN/cthIR2+XFnzBCM5FZQ= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1688027861; x=1690619861; 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=VnEheSovvunB6I3AktXE1UaU+sD3f90l2AKOrWC4PB8=; b=Kb/YbkmXXeIwx63Vy/Di963LyeM2Bct3SxOUookexEdc+FKYi4fAT2tsNpcPp/tx8I Eumiq6/PDsEcbv1oc8lPRXzxkpTgX6Bbf6W4Bncp1aErj4Zvr56xaZIdbkWC6nxOJuUp HgumGT4DR+7A7qIjpFqP2cwjc+JdW+F/Fax43luWIB+deG+MArw7e8fTkVj8wOQE2+hJ bnuMaQZZEsN0WAZqxiBm2dNSG/kFCbR//9YGRJVMxTToUZH++sNXLjyResdHGOh9L+Uh Pokeya93nApxZMRDpWb5eEnkbxZwPLbVeE/NE7gTt5oTXL4dSnE/cC3eenNqDXRFjaXf PuSg== X-Gm-Message-State: AC+VfDywUQkrqUlDMU6AYiAPxn/WldM6UeHnRgxfmSNWVoXcrl7WMrN7 RjQh1e+p3zkiT9y0GxHwZmnkg1HlDw79ttGfhm+yFg== X-Google-Smtp-Source: ACHHUZ7ByXysxvPaeuaHZIwK2Y1GqQD+cRUR2oy+pDeGtRreuognjKejfzOBHomUFPstE+PBAaMMKg== X-Received: by 2002:a05:6512:33c4:b0:4fb:89e2:fc27 with SMTP id d4-20020a05651233c400b004fb89e2fc27mr5492157lfg.54.1688027860684; Thu, 29 Jun 2023 01:37:40 -0700 (PDT) Received: from dario-ThinkPad-T14s-Gen-2i.praguecc.cz (90-182-211-1.rcp.o2.cz. [90.182.211.1]) by smtp.gmail.com with ESMTPSA id cw13-20020a056000090d00b003112f836d4esm15266322wrb.85.2023.06.29.01.37.37 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 29 Jun 2023 01:37:40 -0700 (PDT) From: Dario Binacchi To: linux-kernel@vger.kernel.org Cc: michael@amarulasolutions.com, Amarula patchwork , Philippe Cornu , Raphael Gallais-Pou , 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 v5 2/3] ARM: dts: stm32: add pin map for LTDC on stm32f7 Date: Thu, 29 Jun 2023 10:37:25 +0200 Message-Id: <20230629083726.84910-3-dario.binacchi@amarulasolutions.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20230629083726.84910-1-dario.binacchi@amarulasolutions.com> References: <20230629083726.84910-1-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 v3) Changes in v3: - rename ltdc-pins-a-0 to ltdc-0. 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..36dad40dd0c7 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-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 05:30:29 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 90B49C0015E for ; Thu, 29 Jun 2023 08:42:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232449AbjF2Imn (ORCPT ); Thu, 29 Jun 2023 04:42:43 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52444 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230060AbjF2IlP (ORCPT ); Thu, 29 Jun 2023 04:41:15 -0400 Received: from mail-lf1-x12a.google.com (mail-lf1-x12a.google.com [IPv6:2a00:1450:4864:20::12a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CD8724201 for ; Thu, 29 Jun 2023 01:37:44 -0700 (PDT) Received: by mail-lf1-x12a.google.com with SMTP id 2adb3069b0e04-4fb73ba3b5dso649667e87.1 for ; Thu, 29 Jun 2023 01:37:44 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amarulasolutions.com; s=google; t=1688027863; x=1690619863; 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=vRivB2eYzBBWqVP0G0XxZsVcBa1nGVGm8hEC37qyLwQ=; b=CNQGj3hB+rCrshBipZ0MX3vpp/y9RPxRreIJWOV0F/i1WR100z5M9uqm55GUAson9o hc8hy0uiAlEAua+6jDEcQEOSmGk1wzbzHpvL3fOyAjtULk/eM15n10LRffn/OFXNbYXp ZpkNB0KZT3V8ZoA/WPfrk1O2quqGbBNRCMU2g= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1688027863; x=1690619863; 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=vRivB2eYzBBWqVP0G0XxZsVcBa1nGVGm8hEC37qyLwQ=; b=U0OkqhsEkxoM/SpO3phjFaWwqGlASV7UBEr0OdRwawjRLk3hVV2EZUiuORkE9dTBj+ WuRSGKuPi4ItOiSXT/ZaD3c7o2tSDCmUQjmHaSwI7ktyCMPKkgyoO0QvPFOLYsuhYs7G nCpq0TLV50ZXj2u9yZUbshpfZkcu1ctwx5veUOp0seUPM5JXjeoKJ3o3y4GkvhQQhuO8 07q24iYIEg7PluYxtkKjHckmjcG1VGzYhunNIIZ+fghkz6+uazpY72VM1Ukh+1lCo/+J ROi45PjFvhG1kOQ//LKoijaL753i8/IlrrKcosI4+ADEu5TaT3XSAdOl3SQJiM0Keu7i Cpvw== X-Gm-Message-State: AC+VfDxvhk3fICnJOdI/QjFMfaYoAZLbNP1wTjZVLOoG1tdgKrI7qFnZ T5mOutTqoCmBtrUSUjcSFbMDYa95qpYGK8Eg12+5qQ== X-Google-Smtp-Source: ACHHUZ5KOV5MVb+5IzTuUGKgWgu5AddyTMF9q1z9E2a3dxwfA1VxZrTHd7CbPomjR48KBgslJdh86Q== X-Received: by 2002:a19:5f5e:0:b0:4f8:554f:36aa with SMTP id a30-20020a195f5e000000b004f8554f36aamr21722850lfj.29.1688027862797; Thu, 29 Jun 2023 01:37:42 -0700 (PDT) Received: from dario-ThinkPad-T14s-Gen-2i.praguecc.cz (90-182-211-1.rcp.o2.cz. [90.182.211.1]) by smtp.gmail.com with ESMTPSA id cw13-20020a056000090d00b003112f836d4esm15266322wrb.85.2023.06.29.01.37.40 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 29 Jun 2023 01:37:42 -0700 (PDT) From: Dario Binacchi To: linux-kernel@vger.kernel.org Cc: michael@amarulasolutions.com, Amarula patchwork , Philippe Cornu , Raphael Gallais-Pou , 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 v5 3/3] ARM: dts: stm32: support display on stm32f746-disco board Date: Thu, 29 Jun 2023 10:37:26 +0200 Message-Id: <20230629083726.84910-4-dario.binacchi@amarulasolutions.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20230629083726.84910-1-dario.binacchi@amarulasolutions.com> References: <20230629083726.84910-1-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 --- Changes in v5: I am confident that framebuffer sizing is a real requirement for STM32 boar= ds, but I need some time to understand if and how to introduce this functionali= ty. Therefore, I drop the following patches to allow the series to be fully mer= ged: - [4/6] dt-bindings: display: stm32-ltdc: add optional st,fb-bpp property - [5/6] ARM: dts: stm32: set framebuffer bit depth on stm32f746-disco - [6/6] drm/stm: set framebuffer bit depth through DTS property Changes in v4: - Use DTS property instead of module parameter to set the framebuffer bit d= epth. Changes in v3: - drop [4/6] dt-bindings: display: simple: add Rocktech RK043FN48H Applied to https://anongit.freedesktop.org/git/drm/drm-misc.git (drm-misc= -next): https://cgit.freedesktop.org/drm/drm-misc/commit/?id=3Dc42a37a27c777d6396= 1dd634a30f7c887949491a - drop [5/6] drm/panel: simple: add support for Rocktech RK043FN48H panel Applied to https://anongit.freedesktop.org/git/drm/drm-misc.git (drm-misc= -next) https://cgit.freedesktop.org/drm/drm-misc/commit/?id=3D13cdd12a9f934158f4= ec817cf048fcb4384aa9dc 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