From nobody Sun Feb 8 01:21:33 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 B63DDC77B7A for ; Thu, 1 Jun 2023 17:04:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232370AbjFARD7 (ORCPT ); Thu, 1 Jun 2023 13:03:59 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46098 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231388AbjFARDu (ORCPT ); Thu, 1 Jun 2023 13:03:50 -0400 Received: from mail-lj1-x22b.google.com (mail-lj1-x22b.google.com [IPv6:2a00:1450:4864:20::22b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3E6CC192 for ; Thu, 1 Jun 2023 10:03:48 -0700 (PDT) Received: by mail-lj1-x22b.google.com with SMTP id 38308e7fff4ca-2b1a7e31dcaso5280421fa.2 for ; Thu, 01 Jun 2023 10:03:48 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amarulasolutions.com; s=google; t=1685639026; x=1688231026; 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=AYXAD9NgGprUIQkhXdsDo3LP+5BIf2ORjzEhEoh2Q0k=; b=YEyE4MplOuffKToNXoByaO0YIRahiBQrlXYzMq3NE7mD9SvEWvtIpQ4QjKuUjOkj1T U4ul77rYN2OwXiwDemsBFLPmcJRebNTIAm5Kwkux5fhC6HvvbvE+lDFgsh0rMaXTPln/ Y4fjlsmXpHr9EpCjwT0j/eKuVIyvv6ArA2k8U= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1685639026; x=1688231026; 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=AYXAD9NgGprUIQkhXdsDo3LP+5BIf2ORjzEhEoh2Q0k=; b=YM5XG6QJ7vzYluvjExTjpzmCjof1eC31fjp7lyv0eglO856tbgmlskEAdT5PCGtNIc LDYY7RtX2+OeBF/okFuk2XkJiq5jduy5ZgCzd+y/nmSeO6tTagYgtMrjj4Dd5/nNQUKB a+BF5SlkAm0YCaokbIdiYNfCTmgmO7ROVDHq8VgXjSrTvAmOMXJKis4IvPW8lTb3Vr+P sVkHirSWzmcJnxjFY7ffCRxYPSax6PGm7aAcSYnT2Gozf9qPkif1AEs0s3K+xBhzSKSC cOv9adnGr/xfN507wgRhJY09BW7HLpAH/oAs3JRoVyXCIuNkCRmWtJVXu3muekpLR/Ip MjBQ== X-Gm-Message-State: AC+VfDzj6j6DLYuR2JDaYQt/7GjIQn24iizSCET+SNgYfUIR8ClrxV17 Ruqe00+0NoIeBIaS25vcf485ohio7/rWvIp3f3wT/Q== X-Google-Smtp-Source: ACHHUZ7y/MadAmcG8+tiTZ3xPXcxTCxSt8Z6tfaDt1Gboo+wMV/9REfMseHNxiYgmiOmCfOJtQKSNA== X-Received: by 2002:a2e:8eca:0:b0:2b0:5a04:a5b6 with SMTP id e10-20020a2e8eca000000b002b05a04a5b6mr69305ljl.8.1685639026117; Thu, 01 Jun 2023 10:03:46 -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 bh25-20020a170906a0d900b0096165b2703asm10658522ejb.110.2023.06.01.10.03.44 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 01 Jun 2023 10:03:45 -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 1/6] ARM: dts: stm32: add ltdc support on stm32f746 MCU Date: Thu, 1 Jun 2023 19:03:15 +0200 Message-Id: <20230601170320.2845218-2-dario.binacchi@amarulasolutions.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20230601170320.2845218-1-dario.binacchi@amarulasolutions.com> References: <20230601170320.2845218-1-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 --- 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 01:21:33 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 BB630C77B7E for ; Thu, 1 Jun 2023 17:04:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232431AbjFAREC (ORCPT ); Thu, 1 Jun 2023 13:04:02 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46102 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231831AbjFARDu (ORCPT ); Thu, 1 Jun 2023 13:03:50 -0400 Received: from mail-ej1-x62e.google.com (mail-ej1-x62e.google.com [IPv6:2a00:1450:4864:20::62e]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id AEF33136 for ; Thu, 1 Jun 2023 10:03:49 -0700 (PDT) Received: by mail-ej1-x62e.google.com with SMTP id a640c23a62f3a-96f7377c86aso157447666b.1 for ; Thu, 01 Jun 2023 10:03:49 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amarulasolutions.com; s=google; t=1685639028; x=1688231028; 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=mcKcmUUCIxd110zie+CjXE9D2AXIydaNegCcV+6SNq0=; b=ONctjRxH7/blw2xSSjhjyNIP779YSdcSYRkUGkesaThER6cV4joKdyYdDD6JLkHkFT 9dPXPnNYVmtgtNsGmTVl5DwIAtdk9wF9Xdre4IvLfFtPZWvq1RutMaiLGPlmUPKE75ZQ kYi7DRj72VsybHu0nM8m82iG42xdjhwGoGEFE= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1685639028; x=1688231028; 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=mcKcmUUCIxd110zie+CjXE9D2AXIydaNegCcV+6SNq0=; b=ihA04vwWq08mieJ2qruNYqy+fhPDVLCbOCsEZkTjYvUAD6cStNEh5LMCdHxFuSVNm7 8VWVdeo1R1pJRdIUtUINBiZ3wKChbWBccvHVQKFr6bqaTsWFyk5eY6iW6LKCPKfJNyD1 KCrnxI6eVLmTOqWuCYB0+MqPyjc1C93pi8xlJJMGQDmsmYYuqYbk7AcmZ1aladSi++f7 jwxfrWMrgksrhZBMr+M7VMs2v8syBMfNB1Id5task82W/Fvw2xpsNL7A3yFqBN3KjWFY RyU3PHReGo3X7M8jnreGdU8dvk9kHl9yQ+74v6vwijYag1u5Iemdb0NCuIoSuAIDev3P dAYw== X-Gm-Message-State: AC+VfDyNyZ/7NqU3ZzxsYlTEzNQJ6TQ+4UUixKdNoOmtFF+tbL5+qWsM 5CU4MNqlDtJFX5imhT42ptHXzjy+A2Df0OFmsMxFHQ== X-Google-Smtp-Source: ACHHUZ5N3WWPiRYSAdp/Ws29GdL2rHIl5xREti1d8ZGXwyjdXbJK4oZ3W/krDLTO2yi+qhwVPxLgog== X-Received: by 2002:a17:907:ea4:b0:94f:2852:1d2b with SMTP id ho36-20020a1709070ea400b0094f28521d2bmr9669112ejc.72.1685639027798; Thu, 01 Jun 2023 10:03:47 -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 bh25-20020a170906a0d900b0096165b2703asm10658522ejb.110.2023.06.01.10.03.46 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 01 Jun 2023 10:03:47 -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 2/6] ARM: dts: stm32: add pin map for LTDC on stm32f7 Date: Thu, 1 Jun 2023 19:03:16 +0200 Message-Id: <20230601170320.2845218-3-dario.binacchi@amarulasolutions.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20230601170320.2845218-1-dario.binacchi@amarulasolutions.com> References: <20230601170320.2845218-1-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 --- 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 01:21:33 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 F21F2C7EE2A for ; Thu, 1 Jun 2023 17:04:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232504AbjFAREE (ORCPT ); Thu, 1 Jun 2023 13:04:04 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46132 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232250AbjFARDx (ORCPT ); Thu, 1 Jun 2023 13:03:53 -0400 Received: from mail-ej1-x629.google.com (mail-ej1-x629.google.com [IPv6:2a00:1450:4864:20::629]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 527E6136 for ; Thu, 1 Jun 2023 10:03:51 -0700 (PDT) Received: by mail-ej1-x629.google.com with SMTP id a640c23a62f3a-96f8d485ef3so154057666b.0 for ; Thu, 01 Jun 2023 10:03:51 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amarulasolutions.com; s=google; t=1685639029; x=1688231029; 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=UONz0K3nwm2zifFBUhCTgrepWK1oSDUw2LPUignW7i8=; b=UnYYUWSClBb0BsXFi3i7XAaGAFEzebmE7vqQAMf3PJ8WPIcuaZOHiSHB4JLYadsI56 KHjENvXyzXiGTZ8X2bUEIk9Hm+14AsxYTKsb0vOCfREuWnqw8cFzb98VTRnaZSv9Jmkh IMZz5GcmGNMrLNsbBUBQRucQhVPF0n+MOjoNs= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1685639029; x=1688231029; 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=UONz0K3nwm2zifFBUhCTgrepWK1oSDUw2LPUignW7i8=; b=cTAurk3YXjT8owpc8MIG/aXYj1aUB7WeE+ht/MXiQ2zBu4L/ZFARMmaJFREIZu1ZOc sKxt6VzgYrv/XX0UrMFkPjx7XAhj3eCNkxIeJy5h1B2t4wP9BzTs/tcAPMwN+VEd1+Ul Hz+VtmLIfVAtwtnEkpBlaf7/IvzaRoMZGl/XhAV0nf2qfIuIaOYww8Sb3MfJsNkPrNP1 C/Mtl5xtLEZobvmJUmwLiULcVckWpDjA9HR9g4s4KY8E5RlXBq6KFEXcgQHTDC250Z1Q /8lN7gdWrutxP1r89ZBPqN1pGWTJgX37Glrc8ZbdoNwmgxY98zPQewmlRjwHTcBPkaZh DDaA== X-Gm-Message-State: AC+VfDwhLkQ9fNKgormKppbs7VZmPEdhCgmaa15+CRUXgQ0EBQAUTN4C U8yydFVHFyt7dMN/JudSVFTe5a/wMuYKf64OBPVtpg== X-Google-Smtp-Source: ACHHUZ6q1AhVcxAlVz48b3Tk70s/OoY6OFc2SmdEUmp6hlYZs/bMvPFWf/VyyMQIDAXjCuBoS1i1rQ== X-Received: by 2002:a17:907:9495:b0:94e:43ce:95f6 with SMTP id dm21-20020a170907949500b0094e43ce95f6mr7856974ejc.47.1685639029478; Thu, 01 Jun 2023 10:03:49 -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 bh25-20020a170906a0d900b0096165b2703asm10658522ejb.110.2023.06.01.10.03.48 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 01 Jun 2023 10:03:48 -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 3/6] ARM: dts: stm32: support display on stm32f746-disco board Date: Thu, 1 Jun 2023 19:03:17 +0200 Message-Id: <20230601170320.2845218-4-dario.binacchi@amarulasolutions.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20230601170320.2845218-1-dario.binacchi@amarulasolutions.com> References: <20230601170320.2845218-1-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 --- 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 01:21:33 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 69AA9C77B7E for ; Thu, 1 Jun 2023 17:04:10 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232523AbjFAREI (ORCPT ); Thu, 1 Jun 2023 13:04:08 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46134 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232225AbjFARDx (ORCPT ); Thu, 1 Jun 2023 13:03:53 -0400 Received: from mail-ej1-x635.google.com (mail-ej1-x635.google.com [IPv6:2a00:1450:4864:20::635]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C56A418D for ; Thu, 1 Jun 2023 10:03:51 -0700 (PDT) Received: by mail-ej1-x635.google.com with SMTP id a640c23a62f3a-96fe2a1db26so148457266b.0 for ; Thu, 01 Jun 2023 10:03:51 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amarulasolutions.com; s=google; t=1685639031; x=1688231031; 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=TTcjRJtvmJkq+LZbJsn7Ql99XlhQeL7VF1cYGLTbIN0=; b=n7Sl+iCP+FVrRNRM+g0Sz9GCNp5AtH9LEbszoEgXP3nux2UZChxRBclTN0TV5Q+8Nj HcANmkqpCwpAKoTljNxUqZ/L0V2hRruf8GVkXgRhID9oQx82u1i3j1xk5wUs/Xz6jwhd fh4Yw9IOyWDEp8gpS/QhwOnfSJMFnUNspWCDY= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1685639031; x=1688231031; 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=TTcjRJtvmJkq+LZbJsn7Ql99XlhQeL7VF1cYGLTbIN0=; b=IXhhamlx3guoZAKWOpN5PyuE/tcUT0mPC3P6NIz8cJFt8O4Zs5yGCG2IEujSn1w4HH +S3FfzmQ8gdMfbS7V57Rn4cSAGPhiguCEykVzxhMUlc6K+ksuzj8pUWiFFydLJZNOFTi 79TU4uA6UukgUJ76LVTl8NKKpt02s+N/xf6wT4WH2ygkmqVq2FTBg93qeuQ5/YpF2eTn rneaRwlwPG7ahMXiOVPlzMmgxBBcxlntiuemsLteuPV65u8qQj5MHGbmOK5jgKeFCVAp ocKYLEwRzHyoxpsiU8RkOPyg6NcayODRJRbopBVYO0Ans4LItx6oFpxzjsrVcLYk8qUc b7Gw== X-Gm-Message-State: AC+VfDwdqBrT/Zd/Odq1QnaGlOfIZLPL/SwKaPV/gGAhCwTnRP56nlbu 7i4eT8abuToPeTZNvoRuIh3anvYB6qbnhQcQtWfSvg== X-Google-Smtp-Source: ACHHUZ4FzuZULxk+9erHkcf26CSBR1lbhOScIjaiZzQRVe4X/4sI5tkBoCLZAbqVQDR0tZeyiWty6A== X-Received: by 2002:a17:906:ee87:b0:96f:781e:a4d5 with SMTP id wt7-20020a170906ee8700b0096f781ea4d5mr7658970ejb.77.1685639031091; Thu, 01 Jun 2023 10:03:51 -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 bh25-20020a170906a0d900b0096165b2703asm10658522ejb.110.2023.06.01.10.03.49 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 01 Jun 2023 10:03:50 -0700 (PDT) From: Dario Binacchi To: linux-kernel@vger.kernel.org Cc: Amarula patchwork , michael@amarulasolutions.com, Dario Binacchi , 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 4/6] dt-bindings: display: simple: add Rocktech RK043FN48H Date: Thu, 1 Jun 2023 19:03:18 +0200 Message-Id: <20230601170320.2845218-5-dario.binacchi@amarulasolutions.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20230601170320.2845218-1-dario.binacchi@amarulasolutions.com> References: <20230601170320.2845218-1-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 --- .../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 01:21:33 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 6A1DFC77B7A for ; Thu, 1 Jun 2023 17:04:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232542AbjFAREM (ORCPT ); Thu, 1 Jun 2023 13:04:12 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46172 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232331AbjFARD4 (ORCPT ); Thu, 1 Jun 2023 13:03:56 -0400 Received: from mail-ej1-x630.google.com (mail-ej1-x630.google.com [IPv6:2a00:1450:4864:20::630]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6D7A3195 for ; Thu, 1 Jun 2023 10:03:54 -0700 (PDT) Received: by mail-ej1-x630.google.com with SMTP id a640c23a62f3a-96f850b32caso162950866b.3 for ; Thu, 01 Jun 2023 10:03:54 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amarulasolutions.com; s=google; t=1685639032; x=1688231032; 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=NdElKIu+1cRclMUkHfLP6gJRhgH3ar2X29sNtbMoMuI=; b=hMITaXHxvJ0/6V49p/77QVqaWFXoe1YjU/+69GevnlKUdpZYaRjWcwQTaTldImYEbq VZUBQS6w+K6g5jn5x14c7Lu+zj8LCcRN2SZojZ6nhvsZiy/MXSeEyed/a/4llYaWc8SL Xrvd7Inu3eC8+2XKLZ/mi0wAJEulmiAXs3/oo= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1685639032; x=1688231032; 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=NdElKIu+1cRclMUkHfLP6gJRhgH3ar2X29sNtbMoMuI=; b=kX533tdio/Sexg5QN6ukb60C9qtG6lW6UvKpc5FWbaR2Qe///mVRt0fDjTE6VQAe8+ rv+Uv5LpcSvgkCyYNmfg+9YJefdXqwgWTXcaHCj7tkUM2zarKkOpBkiZmCcsTSOTCJC7 hMiDy360VB52pmDgiXFeKZ6WzZOc7S930Hm6xqPuwXGaXbFHAziCwVK+WFTRhckmxBd6 Z6UcaGRI9H9G/R8UP37HVs7vn3+N6O1J9JVinU/Zw7atRvqUxm3rr1otsn2Naya4qVpb O+mb7dTVh8Fnu9zaecQjtmzEPZyNh7ayyb3ushl7e+WncOZARkArKE4GsYxM+xeOod2b tG2g== X-Gm-Message-State: AC+VfDy041IBHINPouD1SKTRX+jpLaz9zrxSI2g4lBOsGZVd4ct7mINi BUvg6N/bfijSe0F5siWb13i4pu5u2WC8kHWleZQt+Q== X-Google-Smtp-Source: ACHHUZ7q6ifChzQbDQBZTUfEt3PO1GbSHVs0LKyrGDjyYdrlmbXnspinqqOAtt/lVAsXNNCaykR6QA== X-Received: by 2002:a17:907:2d9f:b0:94e:e97b:c65 with SMTP id gt31-20020a1709072d9f00b0094ee97b0c65mr9290200ejc.60.1685639032574; Thu, 01 Jun 2023 10:03:52 -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 bh25-20020a170906a0d900b0096165b2703asm10658522ejb.110.2023.06.01.10.03.51 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 01 Jun 2023 10:03:52 -0700 (PDT) From: Dario Binacchi To: linux-kernel@vger.kernel.org Cc: Amarula patchwork , michael@amarulasolutions.com, Dario Binacchi , Daniel Vetter , David Airlie , Neil Armstrong , Sam Ravnborg , dri-devel@lists.freedesktop.org Subject: [PATCH 5/6] drm/panel: simple: add support for Rocktech RK043FN48H panel Date: Thu, 1 Jun 2023 19:03:19 +0200 Message-Id: <20230601170320.2845218-6-dario.binacchi@amarulasolutions.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20230601170320.2845218-1-dario.binacchi@amarulasolutions.com> References: <20230601170320.2845218-1-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 --- 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..e8e2b2a55f37 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 01:21:33 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 8EE97C77B7A for ; Thu, 1 Jun 2023 17:04:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232572AbjFAREP (ORCPT ); Thu, 1 Jun 2023 13:04:15 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46140 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232356AbjFARD5 (ORCPT ); Thu, 1 Jun 2023 13:03:57 -0400 Received: from mail-ej1-x62e.google.com (mail-ej1-x62e.google.com [IPv6:2a00:1450:4864:20::62e]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1A2F9198 for ; Thu, 1 Jun 2023 10:03:56 -0700 (PDT) Received: by mail-ej1-x62e.google.com with SMTP id a640c23a62f3a-96f7bf3cf9eso165764366b.0 for ; Thu, 01 Jun 2023 10:03:56 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amarulasolutions.com; s=google; t=1685639034; x=1688231034; 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=Ftjev7ny28lvJRfWKN2KXX1gaG/LDneackQ782m2++c=; b=RXpREj32QF9glE5vpN59wgL/+UV12KKLNYA9IA5/BKkN5MgZGAFTz0Twq/Y4ZK8Udq 3MKAomKMltBYpKajAE7tTaJq0jTEmWFCGs2ZhQaB1L+TuroGqIzUDmhiCBh2XBcq0rQR wyY6MJzAzVQZ1h79fJtF4m08kX4kf4xEXSOBc= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1685639034; x=1688231034; 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=Ftjev7ny28lvJRfWKN2KXX1gaG/LDneackQ782m2++c=; b=bW1YPLK2A+aRXPVkImeE8EThQAV3rrNsj+uOk9jkkCms2bgJZACpBQDyVhN71g1Y8u Imbzr6QhYEkoR8KbxMX/bp/5u4yajtdJOvhS6JQh8xnHRBVyUIhzHa5ayCTnNP/wdmjx 97gk2H2O5zVQT0Ggj9Ij35YlKDFQFE5WyWCvF1x4fbbYkuv5tTB2x8Nbu10bRBWfAkxm 3CfX6ieDsXr/+n6nlD7Z1W7uy9211cP5cQq8NtUpLYDHQRW8k+ijoupHzwvxN5Fnagea j8k+daSr906HQ8FhzTEdsS4HECvWzgKxhUpSfXhNdQxJhJjo0RUzOvy2ugFiP7J4A6Ub DIQw== X-Gm-Message-State: AC+VfDyemODmw8vwl1pkmvosoa1C+lJAYlmLIs4gadUxywy4Nxp6b4J4 rPSMR2DyUt+RHCj77iL3XBe6pvXd55FK+JeV3P+0JA== X-Google-Smtp-Source: ACHHUZ5oUVMAwFD6jXFbU87iuAQJMHlHZ+OpaWeKz6pu4pcRR1a2Pb6wyFg0KLbejd0vnRuywS3xIQ== X-Received: by 2002:a17:907:da3:b0:973:d2b6:f536 with SMTP id go35-20020a1709070da300b00973d2b6f536mr9135641ejc.21.1685639034375; Thu, 01 Jun 2023 10:03:54 -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 bh25-20020a170906a0d900b0096165b2703asm10658522ejb.110.2023.06.01.10.03.52 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 01 Jun 2023 10:03:54 -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 6/6] drm/stm: add an option to change FB bpp Date: Thu, 1 Jun 2023 19:03:20 +0200 Message-Id: <20230601170320.2845218-7-dario.binacchi@amarulasolutions.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20230601170320.2845218-1-dario.binacchi@amarulasolutions.com> References: <20230601170320.2845218-1-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 --- 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