From patchwork Wed Mar 24 07:56:31 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hermes Zhang X-Patchwork-Id: 408497 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-18.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 841CFC433E2 for ; Wed, 24 Mar 2021 07:58:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 46B7161A05 for ; Wed, 24 Mar 2021 07:58:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235959AbhCXH5v (ORCPT ); Wed, 24 Mar 2021 03:57:51 -0400 Received: from smtp2.axis.com ([195.60.68.18]:32629 "EHLO smtp2.axis.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235974AbhCXH5d (ORCPT ); Wed, 24 Mar 2021 03:57:33 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=axis.com; q=dns/txt; s=axis-central1; t=1616572653; x=1648108653; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=mFdWLTGtRF/mvjQCBNmal6km7ou+oaXMQ5r2PDBTfKI=; b=GEbU7jKOWpjYTH7rx6T81Kf0xbZUjKBqrRvBfYkdj74Rr3oG42xWvEU1 KiIDtkMIbW7IG9d/yXCZEB1W08LdcxVMNJLQ0MR0JuXzMiY71nWQmJWlD /ahWLGdvyU3RHb5BNzScJkn7C9JpbykCtHwU3HO2Ny8COVWoPDouzCLfh uck0GAUa082TgNRIk2jNzhrYlVXlR+q8xKUC9E/+SuUYhOJypHclqL6KV lAWe0HoJAvneMUdUb3zuKvqObGL7r5c+9ghg3DKAF4a1uZadpOoli8rOl PGiZhI9cgKa1xyND3FTauK6QtQJXY2hQZPX6Q7HJC/90CScrEUwx2S6LB Q==; From: Hermes Zhang To: , , CC: , , , , , Subject: [PATCH 2/2] dt-binding: leds: Document leds-multi-gpio bindings Date: Wed, 24 Mar 2021 15:56:31 +0800 Message-ID: <20210324075631.5004-3-chenhui.zhang@axis.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20210324075631.5004-1-chenhui.zhang@axis.com> References: <20210324075631.5004-1-chenhui.zhang@axis.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-leds@vger.kernel.org From: Hermes Zhang Document the device tree bindings of the multiple GPIOs LED driver Documentation/devicetree/bindings/leds/leds-multi-gpio.yaml. Signed-off-by: Hermes Zhang --- .../bindings/leds/leds-multi-gpio.yaml | 50 +++++++++++++++++++ 1 file changed, 50 insertions(+) create mode 100644 Documentation/devicetree/bindings/leds/leds-multi-gpio.yaml diff --git a/Documentation/devicetree/bindings/leds/leds-multi-gpio.yaml b/Documentation/devicetree/bindings/leds/leds-multi-gpio.yaml new file mode 100644 index 000000000000..6f2b47487b90 --- /dev/null +++ b/Documentation/devicetree/bindings/leds/leds-multi-gpio.yaml @@ -0,0 +1,50 @@ +# SPDX-License-Identifier: GPL-2.0 +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/leds/leds-multi-gpio.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Multiple GPIOs LED driver + +maintainers: + - Hermes Zhang + +description: + This will support some LED made of multiple GPIOs and the brightness of the + LED could map to different states of the GPIOs. + +properties: + compatible: + const: multi-gpio-led + + led-gpios: + description: Array of one or more GPIOs pins used to control the LED. + minItems: 1 + maxItems: 8 # Should be enough + + led-states: + description: | + The array list the supported states here which will map to brightness + from 0 to maximum. Each item in the array will present all the GPIOs + value by bit. + $ref: /schemas/types.yaml#/definitions/uint8-array + minItems: 1 + maxItems: 16 # Should be enough + +required: + - compatible + - led-gpios + - led-states + +additionalProperties: false + +examples: + - | + gpios-led { + compatible = "multi-gpio-led"; + + led-gpios = <&gpio0 23 0x1>, + <&gpio0 24 0x1>; + led-states = /bits/ 8 <0x00 0x01 0x02 0x03>; + }; +...