From patchwork Mon Mar 22 08:31:45 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hermes Zhang X-Patchwork-Id: 406345 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 3E871C433E0 for ; Mon, 22 Mar 2021 08:33:07 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E664A6196E for ; Mon, 22 Mar 2021 08:33:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229665AbhCVIc3 (ORCPT ); Mon, 22 Mar 2021 04:32:29 -0400 Received: from smtp1.axis.com ([195.60.68.17]:36704 "EHLO smtp1.axis.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229647AbhCVIcV (ORCPT ); Mon, 22 Mar 2021 04:32:21 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=axis.com; q=dns/txt; s=axis-central1; t=1616401942; x=1647937942; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=WWBdYwCLBvXlp84iLsNbcu996K9YdjCoBkIe4q9fA74=; b=WSO5wb5zeJdLUm5wGg+5521fPYLWBcKRIzl4QEVplC3N50w8qnPDMXi2 bM47wkUkpzJPEMgMLS7M+YBRPFTpvTy/NhUA7zk4wfnfRJuOxExnC11Y4 8mTWXEhgg0+fSOCRE9ckR+M4T3mW96wNQnLTRQt5bS2Ek3j+MUsoTXSBe Zch+X923EpzCQtdFQ5eliQCqy9RSDRYOGb0GAHiph3ySEl6Ij/zh+SWdt 0oRKlHNgR2Cr9XF5Xz4ywVC/76YCOAdK/KH/AoXrwoeG/hl+4BE8XEpgv LZhwb3g9SEZyDqvt8+OjEritKXfurUqpqQYr6pS2fYshsEteA1Mb+OrUG w==; From: Hermes Zhang To: Pavel Machek , Dan Murphy , Rob Herring , Hermes Zhang CC: , , , Subject: [PATCH] dt-binding: leds: Document leds-multi-gpio bindings Date: Mon, 22 Mar 2021 16:31:45 +0800 Message-ID: <20210322083145.10919-1-chenhui.zhang@axis.com> X-Mailer: git-send-email 2.20.1 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 | 47 +++++++++++++++++++ 1 file changed, 47 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..09e7b60a800e --- /dev/null +++ b/Documentation/devicetree/bindings/leds/leds-multi-gpio.yaml @@ -0,0 +1,47 @@ +# 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 + +required: + - compatible + - led-gpios + - led-states + +examples: + - | + gpios-led { + compatible = "multi-gpio-led"; + + led-gpios = <&gpio0 23 0x1>, + <&gpio0 24 0x1>; + led-states = /bit/ 8 <0x00 0x01 0x02 0x03>; + }; +...