From patchwork Mon Aug 14 13:28:44 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Dario Binacchi X-Patchwork-Id: 13352881 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 4F4CDC001DB for ; Mon, 14 Aug 2023 13:29:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=CtHFQTZi5p9jNpcrEAUpxNQBHAzej486a5I6aZtxLLA=; b=r0IHoNQPmBjPYD 5IAZXg2RbT5wMAIhJsdREWBaVgNO+mfZHk1xi0lCttzEiSNoBRNM9YfQ6T7YS6RWyAnGSNZoSQLYN pFShz6MpAMrSYC3AX2RBzgcB2hq1owu3FkPNQFSlfiIZWzNXyQJH3M+smrhGqHTc4238tKHER14PY sk3N+pwDJekQfdNyhq0NkCz/ouRuSPeowGAciiui6zy+USJJf7WhyemO05hnKnkcgY7sFP27ROwYk XyaZvhyp8z2DK88uZETmd0MXH9fc2QxnGqcchppmj9fNh/dIdp/W63r+RyjQFnKF2azUjVNaAIgS9 C3GGiOa6jqA8wW6Qyi3w==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qVXdB-00H9oP-1e; Mon, 14 Aug 2023 13:29:13 +0000 Received: from mail-ej1-x641.google.com ([2a00:1450:4864:20::641]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1qVXcu-00H9jL-1Y for linux-arm-kernel@lists.infradead.org; Mon, 14 Aug 2023 13:28:58 +0000 Received: by mail-ej1-x641.google.com with SMTP id a640c23a62f3a-99c136ee106so577937966b.1 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=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=aakC/rmUkCIvRIbDWtF64LB5d/SqIzrsg29mBA+U1n+xolLfQYDonLQ0qKHCErEVO4 9ybz0H5lwHmb+Eb9C5/HU7bw3mt4kEFFHMmpKu9XRwByEFQ7Mvt50pVXTkUeOnsrZUYg 0mzFAoSWMrkCSjQyNNlCDiVPiMLzLgyfEACHMIUTI0TPvcyWcen5sRs6cjSNx3CrtWFT dpSAD4q20fMj11knYG3KWNqlBSJkFHTuYfll6koAnK9eX26XEFA0WUHBGdTON6bcq0CR alTgAaymamGgvEHt5AWgdu9vxusaHy3v8Y0NK9iX85ciQv++Ca5c904f0Ub0K3Kvy9xB uzWQ== X-Gm-Message-State: AOJu0YxD/yIGmi1XA/T7AbDAkdRQPZTh2T376zAbad8uWduJSvSFLUOV TnGLU6Z+DWwMaIXsJBuLa5MK5Q== 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 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230814_062856_521621_F5E2AF32 X-CRM114-Status: GOOD ( 16.36 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Add support to Rocktech RK043FN48H display on stm32f746-disco board. Signed-off-by: Dario Binacchi Reviewed-by: Raphaël 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.binacchi@amarulasolutions.com/T/ - Add 'Reviewed-by' tag I forgot in v6. https://lore.kernel.org/linux-arm-kernel/20230629083726.84910-1-dario.binacchi@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 boards, but I need some time to understand if and how to introduce this functionality. Therefore, I drop the following patches to allow the series to be fully merged: - [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 depth. 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=c42a37a27c777d63961dd634a30f7c887949491a - 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=13cdd12a9f934158f4ec817cf048fcb4384aa9dc 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/st/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 = <0xC0000000 0x800000>; }; + reserved-memory { + #address-cells = <1>; + #size-cells = <1>; + ranges; + + linux,cma { + compatible = "shared-dma-pool"; + no-map; + size = <0x80000>; + linux,dma-default; + }; + }; + aliases { serial0 = &usart1; }; @@ -85,6 +98,25 @@ vcc_3v3: vcc-3v3 { regulator-min-microvolt = <3300000>; regulator-max-microvolt = <3300000>; }; + + backlight: backlight { + compatible = "gpio-backlight"; + gpios = <&gpiok 3 GPIO_ACTIVE_HIGH>; + status = "okay"; + }; + + panel_rgb: panel-rgb { + compatible = "rocktech,rk043fn48h"; + power-supply = <&vcc_3v3>; + backlight = <&backlight>; + enable-gpios = <&gpioi 12 GPIO_ACTIVE_HIGH>; + status = "okay"; + port { + panel_in_rgb: endpoint { + remote-endpoint = <<dc_out_rgb>; + }; + }; + }; }; &clk_hse { @@ -99,6 +131,18 @@ &i2c1 { status = "okay"; }; +<dc { + pinctrl-0 = <<dc_pins_a>; + pinctrl-names = "default"; + status = "okay"; + + port { + ltdc_out_rgb: endpoint { + remote-endpoint = <&panel_in_rgb>; + }; + }; +}; + &sdio1 { status = "okay"; vmmc-supply = <&vcc_3v3>;