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[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; + };