From patchwork Wed Jan 18 13:10:01 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Jianhua Lu X-Patchwork-Id: 13106427 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 E9639C38159 for ; Wed, 18 Jan 2023 13:40:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230212AbjARNk4 (ORCPT ); Wed, 18 Jan 2023 08:40:56 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42776 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231421AbjARNkS (ORCPT ); Wed, 18 Jan 2023 08:40:18 -0500 Received: from mail-pf1-x432.google.com (mail-pf1-x432.google.com [IPv6:2607:f8b0:4864:20::432]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E6091BF8BE; Wed, 18 Jan 2023 05:10:14 -0800 (PST) Received: by mail-pf1-x432.google.com with SMTP id s3so23598321pfd.12; Wed, 18 Jan 2023 05:10:14 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=d5iDPqq2wL1x5UVYS+LC8NuxcAKp2OxFDi96DZphNLQ=; b=bL0JpCqTuGGGtqXInCGKfaFZvmIgRwEvI7ZIhN5WHvTzz7QAufN9+18EFo1BE6d22z Ayk4ytDiShS5yJEUDkgXcBbPvWrej1L01bX2ZuQjtFEgdwT/PvFzOJ81f36VXGYURKDQ droDZSV6kpJF15ux9kOn/2uoM5Zen/ViU5/ezUDbwlx1wtTjxpT5G2KKv7qXkLCVz1C9 96xtyIw5gtBwRnR+f4bFSefhFvsS9zdU/L9P2ZwlFoOUVTT43R4yG34iHYjdPvVvMXDg 0FKMGD3xzTOfWJKXn0C+Z0+aq8HzZsp4xZAROLMtnf5Qfps6EZXpJASdbruCJmoc9yyM KA/A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=d5iDPqq2wL1x5UVYS+LC8NuxcAKp2OxFDi96DZphNLQ=; b=BdyBKW0cC2aEVxdcPc6YmVmasGBDtFaSJwMW717QP/7pM6n5ngwjXA12968bHpoi70 rl0sDWjk0u6AcdQma2Y2UulITMXswYX0nYFvev0JyCxpTDxkmWAPuUAo683MC/yX3Uvf vpAKNHvzYaR9ZNBN17U+PxeRFNh0pBpwNBv0R9LQC8Rd2yl4xCfy1Z5EfDZjrfh/U+fJ oCiE24T35hHtrnm4INb29lpCoV5cw9lu8V6nBKcIhmWM+eNTVnhq2JQ031tDixsK+m+5 H8bZJ1WYIgEtSmnbvAc5urF3bHRG3sgUMfgeKTa1Umt9F0/865nudyChep3LQlpYSAAV hT7g== X-Gm-Message-State: AFqh2kp+mIrUH7872JwIv/dhS923qqToB34ZIZTmpU7RY8P8i9HXpysO T8x2uxasz7Qot8KMLUWhwPM= X-Google-Smtp-Source: AMrXdXu2yetaER0yc+qp8u9oWZL1aexMnTGa1KY3Tz1NL4YMJ3U5n7bI06w6myjw3yUh/5WCpowP2g== X-Received: by 2002:aa7:9182:0:b0:58d:987b:2e9 with SMTP id x2-20020aa79182000000b0058d987b02e9mr6643081pfa.24.1674047414000; Wed, 18 Jan 2023 05:10:14 -0800 (PST) Received: from localhost.localdomain (n220246252084.netvigator.com. [220.246.252.84]) by smtp.gmail.com with ESMTPSA id l123-20020a622581000000b005818d429d98sm21959880pfl.136.2023.01.18.05.10.09 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 18 Jan 2023 05:10:13 -0800 (PST) From: Jianhua Lu To: Lee Jones , Daniel Thompson , Jingoo Han , Pavel Machek , Rob Herring , Krzysztof Kozlowski , Helge Deller Cc: linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-leds@vger.kernel.org, devicetree@vger.kernel.org, linux-fbdev@vger.kernel.org, Jianhua Lu Subject: [PATCH v6 1/2] dt-bindings: leds: backlight: Add Kinetic KTZ8866 backlight Date: Wed, 18 Jan 2023 21:10:01 +0800 Message-Id: <20230118131002.15453-1-lujianhua000@gmail.com> X-Mailer: git-send-email 2.39.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-fbdev@vger.kernel.org Add Kinetic KTZ8866 backlight binding documentation. Signed-off-by: Jianhua Lu --- Changes in v2: - Remove "items" between "compatible" and "const: kinetic,ktz8866" - Change "additionalProperties" to "unevaluatedProperties" Changes in v3: - Add Krzysztof's R-b Changes in v4: - Drop Krzysztof's R-b - Add some new properties Changes in v5: - Add missing enum under property description. - Rename uncorrect properties. Changes in v6: - Correct wrong property suffix and description. .../leds/backlight/kinetic,ktz8866.yaml | 59 +++++++++++++++++++ 1 file changed, 59 insertions(+) create mode 100644 Documentation/devicetree/bindings/leds/backlight/kinetic,ktz8866.yaml diff --git a/Documentation/devicetree/bindings/leds/backlight/kinetic,ktz8866.yaml b/Documentation/devicetree/bindings/leds/backlight/kinetic,ktz8866.yaml new file mode 100644 index 000000000000..ca0deba14523 --- /dev/null +++ b/Documentation/devicetree/bindings/leds/backlight/kinetic,ktz8866.yaml @@ -0,0 +1,59 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/leds/backlight/kinetic,ktz8866.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Kinetic Technologies KTZ8866 backlight + +maintainers: + - Jianhua Lu + +description: | + The Kinetic Technologies KTZ8866 is a high efficiency 6-sinks led backlight + with dual lcd bias power. + https://www.kinet-ic.com/ktz8866/ + +allOf: + - $ref: common.yaml# + +properties: + compatible: + const: kinetic,ktz8866 + + current-num-sinks: + description: Number of LED current sinks. + enum: [1, 2, 3, 4, 5, 6] + + current-ramping-time-ms: + description: LED current ramping time in milliseconds. + enum: [2, 4, 8, 16, 32, 64, 128, 192, 256, 320, 384, 448, 512, 576, 640] + + led-ramping-time-ms: + description: | + LED on/off ramping time in milliseconds, note that the case 0 will be mapped + to 512μs because ktz8866 can't ramp faster than it. + enum: [0, 1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, 4096, 8192, 16384] + + enable-lcd-bias: + description: Set if we want to output bias power supply for LCD. + type: boolean + +required: + - compatible + +unevaluatedProperties: false + +examples: + - | + backlight { + compatible = "kinetic,ktz8866"; + + pinctrl-names = "default"; + pinctrl-0 = <&bl_en_default>; + + current-num-sinks = <5>; + current-ramping-time-ms = <128>; + led-ramping-time-ms = <1>; + enable-lcd-bias; + };