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[80.180.23.204]) by smtp.gmail.com with ESMTPSA id e3-20020a170906248300b0099d02ca4327sm5662066ejb.54.2023.08.14.06.28.48 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 14 Aug 2023 06:28:49 -0700 (PDT) From: Dario Binacchi To: linux-kernel@vger.kernel.org Cc: Philippe Cornu , michael@amarulasolutions.com, Amarula patchwork , 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 v8 1/4] ARM: dts: stm32: add ltdc support on stm32f746 MCU Date: Mon, 14 Aug 2023 15:28:41 +0200 Message-Id: <20230814132844.113312-2-dario.binacchi@amarulasolutions.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230814132844.113312-1-dario.binacchi@amarulasolutions.com> References: <20230814132844.113312-1-dario.binacchi@amarulasolutions.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add LTDC (Lcd-tft Display Controller) support. Signed-off-by: Dario Binacchi Reviewed-by: Rapha=C3=ABl Gallais-Pou --- (no changes since v7) Changes in v7: - Add 'Reviewed-by' tag I forgot in v6. https://lore.kernel.org/linux-arm-kernel/20230629083726.84910-1-dario.bin= acchi@amarulasolutions.com/T/ arch/arm/boot/dts/st/stm32f746.dtsi | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/arch/arm/boot/dts/st/stm32f746.dtsi b/arch/arm/boot/dts/st/stm= 32f746.dtsi index d1802efd067c..36eda1562e83 100644 --- a/arch/arm/boot/dts/st/stm32f746.dtsi +++ b/arch/arm/boot/dts/st/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 2.34.1 From nobody Thu Sep 11 16:54:13 2025 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 DEA83C04FE1 for ; Mon, 14 Aug 2023 13:29:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231252AbjHNN3R (ORCPT ); Mon, 14 Aug 2023 09:29:17 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47124 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231287AbjHNN2y (ORCPT ); Mon, 14 Aug 2023 09:28:54 -0400 Received: from mail-lj1-x244.google.com (mail-lj1-x244.google.com [IPv6:2a00:1450:4864:20::244]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C538312D for ; Mon, 14 Aug 2023 06:28:53 -0700 (PDT) Received: by mail-lj1-x244.google.com with SMTP id 38308e7fff4ca-2b9d3dacb33so66908171fa.1 for ; Mon, 14 Aug 2023 06:28:53 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amarulasolutions.com; s=google; t=1692019732; x=1692624532; 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=1Cnwn24kWjSS9OZzuaLMB+FQOsa9xOiEu2l5Cypy8oM=; b=Ha0Lm/5JdJ+EloMPJUOSpXMRWOPusaImnP7V/U5+8tMTS1ERCl75AHL7jpF4TCk2AH eNHzuPSNiU6sD4pknfspH08DiANuJzxXyAqQwA7OidU/U1EO6dqy78zMXcZosmBWTtw3 tgc0SrYZDE6uKdIHejhn/Sp/PvAgQ2hgylhZ0= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1692019732; x=1692624532; 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=1Cnwn24kWjSS9OZzuaLMB+FQOsa9xOiEu2l5Cypy8oM=; b=bSXL6Ek8JvIH7Ezznzzr4XwBfX7UWDvRXiS+rR7afCgLMjmgf5qu4ukenXtXvaOmjr wO6b+PBuLpCY5rJAG2gbDvkEM4MfTudVqAE96VjsocPXRyU7dQsRaNYCWFeFLxkDA1w9 C1jaLQI9KR1/2vUijDKqQyZ0GAglV4Smhgt/ywkq1vlpJaTdwF2uHC9DiOPul5xzaxT+ Pp83+a7Bwk7ny0UzjnBIAeTBsKPMN0U+sRYFJu76u8AVfqG4zfx2AdBlmoClOrnXZP+g HqrCc1aMXW4rSSopKVmg7JmlUemULXUV/dzhLnnOVKjQFFJz/wXrj30TRKpSrV/NgVJr aU7w== X-Gm-Message-State: AOJu0YxIvRFAGIgPsdoUeTWzrGWQ5G36I32bqx+TMD3HwzCY+uApmguu Tu2aCsbiBEGd1V/TlZXMGHLf2rSXv0X2frreMuIirS6B X-Google-Smtp-Source: AGHT+IHymIkz+nFWS5gxRgDUIjIaONVHvk3MTNBjHs9LM8OVGKYOcHxf76OnwMmZW5wRJc+vAG/nTA== X-Received: by 2002:a2e:b177:0:b0:2b6:e618:b5a0 with SMTP id a23-20020a2eb177000000b002b6e618b5a0mr6918864ljm.6.1692019731835; Mon, 14 Aug 2023 06:28:51 -0700 (PDT) Received: from dario-ThinkPad-T14s-Gen-2i.homenet.telecomitalia.it (host-80-180-23-204.pool80180.interbusiness.it. [80.180.23.204]) by smtp.gmail.com with ESMTPSA id e3-20020a170906248300b0099d02ca4327sm5662066ejb.54.2023.08.14.06.28.50 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 14 Aug 2023 06:28:51 -0700 (PDT) From: Dario Binacchi To: linux-kernel@vger.kernel.org Cc: Philippe Cornu , michael@amarulasolutions.com, Amarula patchwork , 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 v8 2/4] ARM: dts: stm32: add pin map for LTDC on stm32f7 Date: Mon, 14 Aug 2023 15:28:42 +0200 Message-Id: <20230814132844.113312-3-dario.binacchi@amarulasolutions.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230814132844.113312-1-dario.binacchi@amarulasolutions.com> References: <20230814132844.113312-1-dario.binacchi@amarulasolutions.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add pin configurations for using LTDC (LCD-tft Display Controller) on stm32f746-disco board. Signed-off-by: Dario Binacchi Reviewed-by: Rapha=C3=ABl Gallais-Pou --- (no changes since v7) Changes in v7: - Add 'Reviewed-by' tag I forgot in v6. https://lore.kernel.org/linux-arm-kernel/20230629083726.84910-1-dario.bin= acchi@amarulasolutions.com/T/ Changes in v3: - rename ltdc-pins-a-0 to ltdc-0. arch/arm/boot/dts/st/stm32f7-pinctrl.dtsi | 35 +++++++++++++++++++++++ 1 file changed, 35 insertions(+) diff --git a/arch/arm/boot/dts/st/stm32f7-pinctrl.dtsi b/arch/arm/boot/dts/= st/stm32f7-pinctrl.dtsi index 9f65403295ca..36dad40dd0c7 100644 --- a/arch/arm/boot/dts/st/stm32f7-pinctrl.dtsi +++ b/arch/arm/boot/dts/st/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 2.34.1 From nobody Thu Sep 11 16:54:13 2025 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 ECD32C05052 for ; Mon, 14 Aug 2023 13:29:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231307AbjHNN3S (ORCPT ); Mon, 14 Aug 2023 09:29:18 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47140 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231295AbjHNN24 (ORCPT ); Mon, 14 Aug 2023 09:28:56 -0400 Received: from mail-ej1-x631.google.com (mail-ej1-x631.google.com [IPv6:2a00:1450:4864:20::631]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 384B0D1 for ; Mon, 14 Aug 2023 06:28:55 -0700 (PDT) Received: by mail-ej1-x631.google.com with SMTP id a640c23a62f3a-9936b3d0286so613525066b.0 for ; Mon, 14 Aug 2023 06:28:55 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amarulasolutions.com; s=google; t=1692019733; x=1692624533; 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=nzDesMH0Rl8r5eYsX/SIRdNEzTscR6QCg7fSNhCB0vk=; b=MQgLNcDYQmvN7uT6SDWKD3NsfK4SledTLTrDPRLfkNlRqZC6jYQJviTAMkbpRD6B8L rEvMsDFoOWVc8ZQMwPCWnrOGeRfv0ClQH5mPeBGH12edBFScvSlgwlaEsDzDJ012ogQF HIBGaZ5G5asPiSgniOZ4j+HV2/FCk2hD8vsis= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1692019733; x=1692624533; 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=nzDesMH0Rl8r5eYsX/SIRdNEzTscR6QCg7fSNhCB0vk=; b=A+ygXQqfV58TmDECO8HKFbEzqE+miHf/wW0WaCvWmiGBf+pxpTaDh8YjyPosI4Ifft Mt/7Aw6SXE+TJ38Qi8+mXs05GeL8CEOlkGLeHkFpUZ88tcX6ckyAvXt/O/7IKOMe0dIb lX6ezITz8batfpULtgokE4QZEVQal+eujamdPNpk++Tx73YGeMKOKPTFTh+5Q4ZDZaQP OhVI5qLP9TYQfEO5arrZ1/yAg/tUZR50PNagkUM6YL/ClC5IggXNAL8/2vhH9hKLBn9H NnR8TsldXQd+z1436CpLBxab2sUnbE/4Q1BA7pIo/UB3E3L+75if5qxF21gSnKyYw7Pe T3BQ== X-Gm-Message-State: AOJu0YxygV/44WjG6jjGgwq5Z5lkQWJ712yCJhMah8PqCjZ8Ksf/D5vX PogEXGyU1Wkx1zmAr19YewIwWF0csIK11TALWRTmYw== X-Google-Smtp-Source: AGHT+IETZ6FarzVDypPuqWg73eGRUFR/48vMRN3Lk2qC2taThkHQZ1OzGY5Od1lINS8WuYxn/U+QSw== X-Received: by 2002:a17:907:1def:b0:99c:22e3:3eed with SMTP id og47-20020a1709071def00b0099c22e33eedmr8170672ejc.73.1692019733450; Mon, 14 Aug 2023 06:28:53 -0700 (PDT) Received: from dario-ThinkPad-T14s-Gen-2i.homenet.telecomitalia.it (host-80-180-23-204.pool80180.interbusiness.it. [80.180.23.204]) by smtp.gmail.com with ESMTPSA id e3-20020a170906248300b0099d02ca4327sm5662066ejb.54.2023.08.14.06.28.52 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 14 Aug 2023 06:28:53 -0700 (PDT) From: Dario Binacchi To: linux-kernel@vger.kernel.org Cc: Philippe Cornu , michael@amarulasolutions.com, Amarula patchwork , 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 v8 3/4] ARM: dts: stm32: rename mmc_vcard to vcc-3v3 on stm32f746-disco Date: Mon, 14 Aug 2023 15:28:43 +0200 Message-Id: <20230814132844.113312-4-dario.binacchi@amarulasolutions.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230814132844.113312-1-dario.binacchi@amarulasolutions.com> References: <20230814132844.113312-1-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" In the schematics of document UM1907, the power supply for the micro SD card is the same 3v3 voltage that is used to power other devices on the board. By generalizing the name of the voltage regulator, it can be referenced by other nodes in the device tree without creating misunderstandings. This patch is preparatory for future developments. Signed-off-by: Dario Binacchi --- (no changes since v1) arch/arm/boot/dts/st/stm32f746-disco.dts | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/arm/boot/dts/st/stm32f746-disco.dts b/arch/arm/boot/dts/s= t/stm32f746-disco.dts index c11616ed5fc6..4e785039ba5a 100644 --- a/arch/arm/boot/dts/st/stm32f746-disco.dts +++ b/arch/arm/boot/dts/st/stm32f746-disco.dts @@ -79,9 +79,9 @@ vcc5v_otg_fs: vcc5v-otg-fs-regulator { regulator-always-on; }; =20 - mmc_vcard: mmc_vcard { + vcc_3v3: vcc-3v3 { compatible =3D "regulator-fixed"; - regulator-name =3D "mmc_vcard"; + regulator-name =3D "vcc_3v3"; regulator-min-microvolt =3D <3300000>; regulator-max-microvolt =3D <3300000>; }; @@ -101,7 +101,7 @@ &i2c1 { =20 &sdio1 { status =3D "okay"; - vmmc-supply =3D <&mmc_vcard>; + vmmc-supply =3D <&vcc_3v3>; cd-gpios =3D <&gpioc 13 GPIO_ACTIVE_LOW>; pinctrl-names =3D "default", "opendrain"; pinctrl-0 =3D <&sdio_pins_a>; --=20 2.34.1 From nobody Thu Sep 11 16:54:13 2025 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 16BB8C04FE2 for ; Mon, 14 Aug 2023 13:29:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231340AbjHNN3U (ORCPT ); Mon, 14 Aug 2023 09:29:20 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47150 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231297AbjHNN25 (ORCPT ); Mon, 14 Aug 2023 09:28:57 -0400 Received: from mail-ej1-x643.google.com (mail-ej1-x643.google.com [IPv6:2a00:1450:4864:20::643]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 83493D1 for ; Mon, 14 Aug 2023 06:28:56 -0700 (PDT) Received: by mail-ej1-x643.google.com with SMTP id a640c23a62f3a-99357737980so576581466b.2 for ; Mon, 14 Aug 2023 06:28:56 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amarulasolutions.com; s=google; t=1692019735; x=1692624535; 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=XdPyv6Fu9+Y66puo5x11N4oIzMH43gN51/s59ClZHmA=; b=IuSnIBz6z82KUjtI6wiKj8hJa4qftmemd9mgMzAI8h4Fv1kKPo/PALBaB1etMp0+fL g9B6+R4et7rMOQeiLPpqPatGThPnvfTBcOExV/MYm4EA0QtAOJV3H9QQUDF840RuySA7 NfCiwGniqosro+lHICC4CutCFEeVaYoc+qF9c= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1692019735; x=1692624535; 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=XdPyv6Fu9+Y66puo5x11N4oIzMH43gN51/s59ClZHmA=; b=JXLrMjfw1g60S/mMTiROHYmnPcopbeGPTRc3uPm8D5V+YWRax3Ad1mMmLHcVOK8vhS JjG8kdmA5Kh5GxOB2VRq8gRqM6Rd/RvkZtkSm2s0VzCa5oRuqm6Ny2fL7wsmcYTJ7kfa /RXv21sHK1kG5tzh2lJZkh/p7CL8cv05p9Do76cCfYuPmSc2aMsu4GEz4u40YNa15qhp SzjIhojBIX6ikiEUCWcu307/FUktv1jAlTBI15OoPso4W4esVUHMmlxZINYZ73OsHYld yikxHyC6JCxuoRrfaV7IiJxDAXUpb33GJEaFr+lcpu1vM6MOZFT5lta+dQcONjBZjtMV k3Lw== X-Gm-Message-State: AOJu0YxveknAEuiarHFcy6Ci8ttrtnQyudjzrrF2q4cAtpADTpeivb7F 98GmxVM0J569Vo1vbKKl+X4BHirWX+3yPNVUaTUv53FC X-Google-Smtp-Source: AGHT+IGFjehVMqUTz4FbuoG5ps0I4stw/UjQAKeX7ZcjzJkQpFgCENcR7WDugJj6HQ82X4gP+YQRew== X-Received: by 2002:a17:906:9ca:b0:99c:441:ffa with SMTP id r10-20020a17090609ca00b0099c04410ffamr7926229eje.29.1692019734816; Mon, 14 Aug 2023 06:28:54 -0700 (PDT) Received: from dario-ThinkPad-T14s-Gen-2i.homenet.telecomitalia.it (host-80-180-23-204.pool80180.interbusiness.it. [80.180.23.204]) by smtp.gmail.com with ESMTPSA id e3-20020a170906248300b0099d02ca4327sm5662066ejb.54.2023.08.14.06.28.53 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 14 Aug 2023 06:28:54 -0700 (PDT) From: Dario Binacchi To: linux-kernel@vger.kernel.org Cc: Philippe Cornu , michael@amarulasolutions.com, Amarula patchwork , 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 v8 4/4] ARM: dts: stm32: support display on stm32f746-disco board Date: Mon, 14 Aug 2023 15:28:44 +0200 Message-Id: <20230814132844.113312-5-dario.binacchi@amarulasolutions.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230814132844.113312-1-dario.binacchi@amarulasolutions.com> References: <20230814132844.113312-1-dario.binacchi@amarulasolutions.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add support to Rocktech RK043FN48H display on stm32f746-disco board. Signed-off-by: Dario Binacchi Reviewed-by: Rapha=C3=ABl Gallais-Pou --- Changes in v8: - Add the 'power-supply' property to panel-rgb node. - Move backlight and panel-rgb nodes after the vcc-3v3 node. Changes in v7: - Add 'Reviewed-by' tags I forgot in v6. https://lore.kernel.org/linux-arm-kernel/20230629083726.84910-1-dario.bin= acchi@amarulasolutions.com/T/ - Add 'Reviewed-by' tag I forgot in v6. https://lore.kernel.org/linux-arm-kernel/20230629083726.84910-1-dario.bin= acchi@amarulasolutions.com/T/ Changes in v6: - Remove dma nodes from stm32f746-disco.dts, they are not used by LTDC, so there is no need to enable them. 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/st/stm32f746-disco.dts | 44 ++++++++++++++++++++++++ 1 file changed, 44 insertions(+) diff --git a/arch/arm/boot/dts/st/stm32f746-disco.dts b/arch/arm/boot/dts/s= t/stm32f746-disco.dts index 4e785039ba5a..bf91f6b1c0f3 100644 --- a/arch/arm/boot/dts/st/stm32f746-disco.dts +++ b/arch/arm/boot/dts/st/stm32f746-disco.dts @@ -60,6 +60,19 @@ 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; }; @@ -85,6 +98,25 @@ vcc_3v3: vcc-3v3 { regulator-min-microvolt =3D <3300000>; regulator-max-microvolt =3D <3300000>; }; + + backlight: backlight { + compatible =3D "gpio-backlight"; + gpios =3D <&gpiok 3 GPIO_ACTIVE_HIGH>; + status =3D "okay"; + }; + + panel_rgb: panel-rgb { + compatible =3D "rocktech,rk043fn48h"; + power-supply =3D <&vcc_3v3>; + 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>; + }; + }; + }; }; =20 &clk_hse { @@ -99,6 +131,18 @@ &i2c1 { status =3D "okay"; }; =20 +<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 <&vcc_3v3>; --=20 2.34.1