From mboxrd@z Thu Jan 1 00:00:00 1970 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 0AE8CC4332F for ; Sat, 31 Dec 2022 23:56:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235942AbiLaX4A (ORCPT ); Sat, 31 Dec 2022 18:56:00 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48280 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232200AbiLaXzv (ORCPT ); Sat, 31 Dec 2022 18:55:51 -0500 Received: from new2-smtp.messagingengine.com (new2-smtp.messagingengine.com [66.111.4.224]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E489C269; Sat, 31 Dec 2022 15:55:46 -0800 (PST) Received: from compute5.internal (compute5.nyi.internal [10.202.2.45]) by mailnew.nyi.internal (Postfix) with ESMTP id 424515817C0; Sat, 31 Dec 2022 18:55:45 -0500 (EST) Received: from mailfrontend1 ([10.202.2.162]) by compute5.internal (MEProxy); Sat, 31 Dec 2022 18:55:45 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sholland.org; h= cc:cc:content-transfer-encoding:date:date:from:from:in-reply-to :in-reply-to:message-id:mime-version:references:reply-to:sender :subject:subject:to:to; s=fm3; t=1672530945; x=1672538145; bh=UF t7Zu53zTl2BvEb0FKbdoPqlh94wIU/2L8iVmAGJ0w=; b=R/9TIWIUfc6fKZ05dK gK3un29z//PtV3pksMJcGCPRgpt43Rw5fj90SSx0FkHiIpNi6eXIxW6qCgRJR6ei AmD0jE8v5vyPynZMXkAdk/xcVW6G8gLMTllU/b9f7MRWZYlPhp/n8WvG8IG2o5ud 1r3lbDDYL8WQr8BMsT+6O79uln0g1P9i/Gr7UzRQFxdyS5VbiHfVIClQjMsxjOzb PaHOd45WityHUth+gWdugwFXsYFTJ11CkgwFPYB93AL+1nkMujTpgtkQJjsm2rrj us3HExKn9DQWgYaBEB4WP7YfbBjNeSsI/v9++EB3YIYkxumkOix08Sqa3CoV9wBJ jsHQ== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:cc:content-transfer-encoding:date:date :feedback-id:feedback-id:from:from:in-reply-to:in-reply-to :message-id:mime-version:references:reply-to:sender:subject :subject:to:to:x-me-proxy:x-me-proxy:x-me-sender:x-me-sender :x-sasl-enc; s=fm2; t=1672530945; x=1672538145; bh=UFt7Zu53zTl2B vEb0FKbdoPqlh94wIU/2L8iVmAGJ0w=; b=wk5PmdKcfiLHZTWg8AMugeM2Ry9VB f1DFICZnBmpCnNlNyQuHnOsH9GlfK0FKDNttRSbx8UZG1levqTEYxL+k+5Qa6P4u 15UO8W8bdtdRbK4wLrpWG/01wp1x22WjZdwOGRtjueSMki1dMmfw6LHIxuF9iHca 1TY1qi7h6UyjsfziY2Zns37Po0+3HMJ7Pp99DYJQIBkB3NCDKjfKV+9MPj6RUuTL NO/C43xGAvBmyGeK6R6NC3izcovjGErZMjM+olqFv6Jx+cOkpVk1XCa/5qkR814M xUw3d9bC/tByK91gAyyyohNvx8vQgX/R1qyjInrHGl9fDEQulhOjP0UkQ== X-ME-Sender: X-ME-Received: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedvhedrieelgddujecutefuodetggdotefrodftvf curfhrohhfihhlvgemucfhrghsthforghilhdpqfgfvfdpuffrtefokffrpgfnqfghnecu uegrihhlohhuthemuceftddtnecusecvtfgvtghiphhivghnthhsucdlqddutddtmdenuc fjughrpefhvfevufffkffojghfggfgsedtkeertdertddtnecuhfhrohhmpefurghmuhgv lhcujfholhhlrghnugcuoehsrghmuhgvlhesshhhohhllhgrnhgurdhorhhgqeenucggtf frrghtthgvrhhnpefghfevhffgheejhefgkeehueffgeehffejgeehueduueeffffhhfeu iefhueffhfenucffohhmrghinhepuggvvhhitggvthhrvggvrdhorhhgnecuvehluhhsth gvrhfuihiivgeptdenucfrrghrrghmpehmrghilhhfrhhomhepshgrmhhuvghlsehshhho lhhlrghnugdrohhrgh X-ME-Proxy: Feedback-ID: i0ad843c9:Fastmail Received: by mail.messagingengine.com (Postfix) with ESMTPA; Sat, 31 Dec 2022 18:55:43 -0500 (EST) From: Samuel Holland To: Lee Jones , Pavel Machek , linux-leds@vger.kernel.org, Chen-Yu Tsai , Jernej Skrabec Cc: Samuel Holland , Albert Ou , Conor Dooley , Guo Ren , Heiko Stuebner , Heiko Stuebner , Jisheng Zhang , Krzysztof Kozlowski , Palmer Dabbelt , Paul Walmsley , Philipp Zabel , Rob Herring , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org, linux-sunxi@lists.linux.dev, Maxime Ripard , Rob Herring Subject: [RESEND PATCH v7 1/5] dt-bindings: leds: Add Allwinner A100 LED controller Date: Sat, 31 Dec 2022 17:55:36 -0600 Message-Id: <20221231235541.13568-2-samuel@sholland.org> X-Mailer: git-send-email 2.37.4 In-Reply-To: <20221231235541.13568-1-samuel@sholland.org> References: <20221231235541.13568-1-samuel@sholland.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The Allwinner A100, R329, and D1 SoCs contain an LED controller designed to drive a series of RGB LED pixels. It supports PIO and DMA transfers, and has configurable timing and pixel format. All three implementations appear to be identical, so use the oldest as the fallback compatible. Acked-by: Maxime Ripard Reviewed-by: Rob Herring Signed-off-by: Samuel Holland --- (no changes since v5) Changes in v5: - A100 contains the original implementation, so use that as the base compatible string, and rename the binding to match - Add "unevaluatedProperties: false" to the child multi-led binding Changes in v4: - Use "default" instead of "maxItems" for timing properties Changes in v3: - Removed quotes from enumeration values - Added vendor prefix to timing/format properties - Renamed "format" property to "pixel-format" for clarity - Dropped "vled-supply" as it is unrelated to the controller hardware Changes in v2: - Fixed typo leading to duplicate t1h-ns property - Removed "items" layer in definition of dmas/dma-names - Replaced uint32 type reference with maxItems in timing properties .../leds/allwinner,sun50i-a100-ledc.yaml | 139 ++++++++++++++++++ 1 file changed, 139 insertions(+) create mode 100644 Documentation/devicetree/bindings/leds/allwinner,sun50i-a100-ledc.yaml diff --git a/Documentation/devicetree/bindings/leds/allwinner,sun50i-a100-ledc.yaml b/Documentation/devicetree/bindings/leds/allwinner,sun50i-a100-ledc.yaml new file mode 100644 index 000000000000..fc8ecf6f91e6 --- /dev/null +++ b/Documentation/devicetree/bindings/leds/allwinner,sun50i-a100-ledc.yaml @@ -0,0 +1,139 @@ +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/leds/allwinner,sun50i-a100-ledc.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Allwinner A100 LED Controller Bindings + +maintainers: + - Samuel Holland + +description: + The LED controller found in Allwinner sunxi SoCs uses a one-wire serial + interface to drive up to 1024 RGB LEDs. + +properties: + compatible: + oneOf: + - const: allwinner,sun50i-a100-ledc + - items: + - enum: + - allwinner,sun20i-d1-ledc + - allwinner,sun50i-r329-ledc + - const: allwinner,sun50i-a100-ledc + + reg: + maxItems: 1 + + "#address-cells": + const: 1 + + "#size-cells": + const: 0 + + interrupts: + maxItems: 1 + + clocks: + items: + - description: Bus clock + - description: Module clock + + clock-names: + items: + - const: bus + - const: mod + + resets: + maxItems: 1 + + dmas: + maxItems: 1 + description: TX DMA channel + + dma-names: + const: tx + + allwinner,pixel-format: + description: Pixel format (subpixel transmission order), default is "grb" + enum: + - bgr + - brg + - gbr + - grb + - rbg + - rgb + + allwinner,t0h-ns: + default: 336 + description: Length of high pulse when transmitting a "0" bit + + allwinner,t0l-ns: + default: 840 + description: Length of low pulse when transmitting a "0" bit + + allwinner,t1h-ns: + default: 882 + description: Length of high pulse when transmitting a "1" bit + + allwinner,t1l-ns: + default: 294 + description: Length of low pulse when transmitting a "1" bit + + allwinner,treset-ns: + default: 300000 + description: Minimum delay between transmission frames + +patternProperties: + "^multi-led@[0-9a-f]+$": + type: object + $ref: leds-class-multicolor.yaml# + unevaluatedProperties: false + properties: + reg: + minimum: 0 + maximum: 1023 + description: Index of the LED in the series (must be contiguous) + + required: + - reg + +required: + - compatible + - reg + - interrupts + - clocks + - clock-names + - resets + - dmas + - dma-names + +additionalProperties: false + +examples: + - | + #include + #include + + ledc: led-controller@2008000 { + compatible = "allwinner,sun20i-d1-ledc", + "allwinner,sun50i-a100-ledc"; + reg = <0x2008000 0x400>; + interrupts = <36 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&ccu 12>, <&ccu 34>; + clock-names = "bus", "mod"; + resets = <&ccu 12>; + dmas = <&dma 42>; + dma-names = "tx"; + #address-cells = <1>; + #size-cells = <0>; + + multi-led@0 { + reg = <0x0>; + color = ; + function = LED_FUNCTION_INDICATOR; + }; + }; + +... -- 2.37.4