From patchwork Fri Feb 23 09:14:48 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dharma Balasubiramani X-Patchwork-Id: 13568776 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 06C4AC5478C for ; Fri, 23 Feb 2024 09:17:07 +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:CC:To:Message-ID:MIME-Version:Subject: Date:From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=qPQYDJL8ErHCPAYp+sBcvW1yHftvASiJ2l6kQ3y3f/c=; b=DSyKXG5Ih/ZTjs 1mu/k6yW7//ti6UuQYpbGWiFus2xAeAYn/UW9ydA7P50jvGjei48zlUpkCiDVG9UsX8o2zS5qIxgA GiFBd3/ba/lEGx7zaSUAIWK8TLcsULMp6UPqLr48STxoGbApfRK8s/u+q9DjPgYM+gpewMWcAltGc AE4+qYZF/aexHxysS3NT2Act3ux94lNLGLu7Yqn3J5K5piP9q2BhenLVQY2Q5hpmfQ90aki3eXcDG H6VD4kPYoNEPfBXgwZCHi9nzvDn40FKRwmH+EICRk5G9XTu3ad2tjuJHehCrV26AFlIuzqxjrShah SOJFVfQeQAVqngXeHfIQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1rdRfP-00000008dEc-2jU3; Fri, 23 Feb 2024 09:16:41 +0000 Received: from esa.microchip.iphmx.com ([68.232.154.123]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1rdRfE-00000008dBY-2tf3 for linux-arm-kernel@lists.infradead.org; Fri, 23 Feb 2024 09:16:21 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=microchip.com; i=@microchip.com; q=dns/txt; s=mchp; t=1708679776; x=1740215776; h=from:date:subject:mime-version:content-transfer-encoding: message-id:to:cc; bh=9Vu1VRNAWtniGY/jtoOfNnxYyiQmtWAxgcCmBslvTO0=; b=cd0DL/31Pi9mEc0QWZK0wChePvL2qhW8cKlYdVfeYJ6LgD9PfI7G6OP2 spZ8lraGku2YyPgyAn2CeROfMTgypxNO4W4WTRztpjX058zljYIotMhcF 64MeSuiDXe2AzpXx1UGMe+KnXneRkwssnxWmIV+4SVr/j3CX9tkaJMI2v SDawDwfc+AG8C88AgOr1IK3PKJG/mg+yqWceddS4bN8U9fr/r1FhvTuxw 86tqdzj1ChvwYA9cXTZJ231onrJJ2Pac/gYUduYKz2BtnKSv1l7tyEd3g mAJdx31eb0LorW+hbGb0OiE6kCehiZh62NlQooWoSFBnP0T3LsQcSWPGc Q==; X-CSE-ConnectionGUID: xzqCRm/2QM6BAc1jATjzJA== X-CSE-MsgGUID: Zfo9vPMnSfmdi3vZldUFCA== X-IronPort-AV: E=Sophos;i="6.06,179,1705388400"; d="scan'208";a="17247390" X-Amp-Result: SKIPPED(no attachment in message) Received: from unknown (HELO email.microchip.com) ([170.129.1.10]) by esa2.microchip.iphmx.com with ESMTP/TLS/ECDHE-RSA-AES128-GCM-SHA256; 23 Feb 2024 02:16:06 -0700 Received: from chn-vm-ex04.mchp-main.com (10.10.85.152) by chn-vm-ex01.mchp-main.com (10.10.85.143) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.35; Fri, 23 Feb 2024 02:15:09 -0700 Received: from che-lt-i70843lx.microchip.com (10.10.85.11) by chn-vm-ex04.mchp-main.com (10.10.85.152) with Microsoft SMTP Server id 15.1.2507.35 via Frontend Transport; Fri, 23 Feb 2024 02:15:04 -0700 From: Dharma Balasubiramani Date: Fri, 23 Feb 2024 14:44:48 +0530 Subject: [PATCH] dt-bindings: display: atmel,lcdc: convert to dtschema MIME-Version: 1.0 Message-ID: <20240223-lcdc-fb-v1-1-4c64cb6277df@microchip.com> X-B4-Tracking: v=1; b=H4sIAAdi2GUC/6tWKk4tykwtVrJSqFYqSi3LLM7MzwNyDHUUlJIzE vPSU3UzU4B8JSMDIxMDIyNj3ZzklGTdtCTdJIsUo1SjNONkS0MTJaDqgqLUtMwKsEnRsbW1AF8 WmF1ZAAAA To: Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Daniel Vetter , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Nicolas Ferre , Alexandre Belloni , Claudiu Beznea CC: , , , , Dharma Balasubiramani X-Mailer: b4 0.12.4 X-Developer-Signature: v=1; a=ed25519-sha256; t=1708679703; l=7368; i=dharma.b@microchip.com; s=20240209; h=from:subject:message-id; bh=9Vu1VRNAWtniGY/jtoOfNnxYyiQmtWAxgcCmBslvTO0=; b=WtHfIsVvFXuF0Iwjp/BdSegvujxE26RubKhGI3LA7nPOdb2Pl02iAfiQEkXCy/LMwMP+U6Pup HUtmfMFt7gsB69GYwXblwVmJtzMI/hOvC2egN9xf9xlrCue/NQWzuuE X-Developer-Key: i=dharma.b@microchip.com; a=ed25519; pk=kCq31LcpLAe9HDfIz9ZJ1U7T+osjOi7OZSbe0gqtyQ4= X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240223_011617_658673_2001922C X-CRM114-Status: GOOD ( 16.74 ) 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 Convert the atmel,lcdc bindings to DT schema. Changes during conversion: add missing clocks and clock-names properties. Signed-off-by: Dharma Balasubiramani --- .../devicetree/bindings/display/atmel,lcdc.txt | 87 -------------- .../devicetree/bindings/display/atmel,lcdc.yaml | 133 +++++++++++++++++++++ 2 files changed, 133 insertions(+), 87 deletions(-) --- base-commit: ffd2cb6b718e189e7e2d5d0c19c25611f92e061a change-id: 20240223-lcdc-fb-b8d2e2f3c914 Best regards, diff --git a/Documentation/devicetree/bindings/display/atmel,lcdc.txt b/Documentation/devicetree/bindings/display/atmel,lcdc.txt deleted file mode 100644 index b5e355ada2fa..000000000000 --- a/Documentation/devicetree/bindings/display/atmel,lcdc.txt +++ /dev/null @@ -1,87 +0,0 @@ -Atmel LCDC Framebuffer ------------------------------------------------------ - -Required properties: -- compatible : - "atmel,at91sam9261-lcdc" , - "atmel,at91sam9263-lcdc" , - "atmel,at91sam9g10-lcdc" , - "atmel,at91sam9g45-lcdc" , - "atmel,at91sam9g45es-lcdc" , - "atmel,at91sam9rl-lcdc" , -- reg : Should contain 1 register ranges(address and length). - Can contain an additional register range(address and length) - for fixed framebuffer memory. Useful for dedicated memories. -- interrupts : framebuffer controller interrupt -- display: a phandle pointing to the display node - -Required nodes: -- display: a display node is required to initialize the lcd panel - This should be in the board dts. -- default-mode: a videomode within the display with timing parameters - as specified below. - -Optional properties: -- lcd-supply: Regulator for LCD supply voltage. - -Example: - - fb0: fb@00500000 { - compatible = "atmel,at91sam9g45-lcdc"; - reg = <0x00500000 0x1000>; - interrupts = <23 3 0>; - pinctrl-names = "default"; - pinctrl-0 = <&pinctrl_fb>; - display = <&display0>; - #address-cells = <1>; - #size-cells = <1>; - - }; - -Example for fixed framebuffer memory: - - fb0: fb@00500000 { - compatible = "atmel,at91sam9263-lcdc"; - reg = <0x00700000 0x1000 0x70000000 0x200000>; - [...] - }; - -Atmel LCDC Display ------------------------------------------------------ -Required properties (as per of_videomode_helper): - - - atmel,dmacon: dma controller configuration - - atmel,lcdcon2: lcd controller configuration - - atmel,guard-time: lcd guard time (Delay in frame periods) - - bits-per-pixel: lcd panel bit-depth. - -Optional properties (as per of_videomode_helper): - - atmel,lcdcon-backlight: enable backlight - - atmel,lcdcon-backlight-inverted: invert backlight PWM polarity - - atmel,lcd-wiring-mode: lcd wiring mode "RGB" or "BRG" - - atmel,power-control-gpio: gpio to power on or off the LCD (as many as needed) - -Example: - display0: display { - bits-per-pixel = <32>; - atmel,lcdcon-backlight; - atmel,dmacon = <0x1>; - atmel,lcdcon2 = <0x80008002>; - atmel,guard-time = <9>; - atmel,lcd-wiring-mode = <1>; - - display-timings { - native-mode = <&timing0>; - timing0: timing0 { - clock-frequency = <9000000>; - hactive = <480>; - vactive = <272>; - hback-porch = <1>; - hfront-porch = <1>; - vback-porch = <40>; - vfront-porch = <1>; - hsync-len = <45>; - vsync-len = <1>; - }; - }; - }; diff --git a/Documentation/devicetree/bindings/display/atmel,lcdc.yaml b/Documentation/devicetree/bindings/display/atmel,lcdc.yaml new file mode 100644 index 000000000000..4a1de5a8d64b --- /dev/null +++ b/Documentation/devicetree/bindings/display/atmel,lcdc.yaml @@ -0,0 +1,133 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/display/atmel,lcdc.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Microchip's LCDC Framebuffer + +maintainers: + - Nicolas Ferre + - Dharma Balasubiramani + +description: + The LCDC works with a framebuffer, which is a section of memory that contains + a complete frame of data representing pixel values for the display. The LCDC + reads the pixel data from the framebuffer and sends it to the LCD panel to + render the image. + +properties: + compatible: + enum: + - atmel,at91sam9261-lcdc + - atmel,at91sam9263-lcdc + - atmel,at91sam9g10-lcdc + - atmel,at91sam9g45-lcdc + - atmel,at91sam9g45es-lcdc + - atmel,at91sam9rl-lcdc + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + clocks: + maxItems: 2 + + clock-names: + items: + - const: hclk + - const: lcdc_clk + + display: + $ref: /schemas/types.yaml#/definitions/phandle + description: A phandle pointing to the display node. + + properties: + atmel,dmacon: + $ref: /schemas/types.yaml#/definitions/uint32 + description: dma controller configuration + + atmel,lcdcon2: + $ref: /schemas/types.yaml#/definitions/uint32 + description: lcd controller configuration + + atmel,guard-time: + $ref: /schemas/types.yaml#/definitions/uint32 + description: lcd guard time (Delay in frame periods) + + bits-per-pixel: + $ref: /schemas/types.yaml#/definitions/uint32 + description: lcd panel bit-depth. + + atmel,lcdcon-backlight: + $ref: /schemas/types.yaml#/definitions/flag + description: enable backlight + + atmel,lcdcon-backlight-inverted: + $ref: /schemas/types.yaml#/definitions/flag + description: invert backlight PWM polarity + + atmel,lcd-wiring-mode: + $ref: /schemas/types.yaml#/definitions/non-unique-string-array + description: lcd wiring mode "RGB" or "BRG" + + atmel,power-control-gpio: + description: gpio to power on or off the LCD (as many as needed) + + required: + - atmel,dmacon + - atmel,lcdcon2 + - atmel,guard-time + - bits-per-pixel + + additionalProperties: false + +required: + - compatible + - reg + - interrupts + - clocks + - clock-names + - display + +additionalProperties: false + +examples: + - | + #include + fb@500000 { + compatible = "atmel,at91sam9g45-lcdc"; + reg = <0x00500000 0x1000>; + interrupts = <23 3 0>; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_fb>; + clocks = <&pmc PMC_TYPE_PERIPHERAL 23>, <&pmc PMC_TYPE_PERIPHERAL 23>; + clock-names = "hclk", "lcdc_clk"; + display = <&display0>; + }; + + display { + bits-per-pixel = <32>; + atmel,lcdcon-backlight; + atmel,dmacon = <0x1>; + atmel,lcdcon2 = <0x80008002>; + atmel,guard-time = <9>; + atmel,lcd-wiring-mode = <1>; + + display-timings { + native-mode = <&timing0>; + timing0: timing0 { + clock-frequency = <9000000>; + hactive = <480>; + vactive = <272>; + hback-porch = <1>; + hfront-porch = <1>; + vback-porch = <40>; + vfront-porch = <1>; + hsync-len = <45>; + vsync-len = <1>; + }; + }; + };