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dt-bindings: pinctrl: mt8186: Add and use drive-strength-microamp
Commit e5fabbe ("pinctrl: mediatek: paris: Support generic PIN_CONFIG_DRIVE_STRENGTH_UA") added support for using drive-strength-microamp instead of mediatek,drive-strength-adv. Similarly to the mt8192 and mt8195, there's no user of property 'mediatek,drive-strength-adv', hence removing it is safe. Fixes: 338e953 ("dt-bindings: pinctrl: mt8186: add pinctrl file and binding document") Signed-off-by: Allen-KH Cheng <allen-kh.cheng@mediatek.com> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Reviewed-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20220725110702.11362-3-allen-kh.cheng@mediatek.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Documentation/devicetree/bindings/pinctrl/pinctrl-mt8186.yaml

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@@ -107,31 +107,8 @@ patternProperties:
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drive-strength:
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enum: [2, 4, 6, 8, 10, 12, 14, 16]
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mediatek,drive-strength-adv:
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description: |
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Describe the specific driving setup property.
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For I2C pins, the existing generic driving setup can only support
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2/4/6/8/10/12/14/16mA driving. But in specific driving setup, they
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can support 0.125/0.25/0.5/1mA adjustment. If we enable specific
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driving setup, the existing generic setup will be disabled.
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The specific driving setup is controlled by E1E0EN.
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When E1=0/E0=0, the strength is 0.125mA.
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When E1=0/E0=1, the strength is 0.25mA.
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When E1=1/E0=0, the strength is 0.5mA.
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When E1=1/E0=1, the strength is 1mA.
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EN is used to enable or disable the specific driving setup.
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Valid arguments are described as below:
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0: (E1, E0, EN) = (0, 0, 0)
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1: (E1, E0, EN) = (0, 0, 1)
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2: (E1, E0, EN) = (0, 1, 0)
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3: (E1, E0, EN) = (0, 1, 1)
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4: (E1, E0, EN) = (1, 0, 0)
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5: (E1, E0, EN) = (1, 0, 1)
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6: (E1, E0, EN) = (1, 1, 0)
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7: (E1, E0, EN) = (1, 1, 1)
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So the valid arguments are from 0 to 7.
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$ref: /schemas/types.yaml#/definitions/uint32
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enum: [0, 1, 2, 3, 4, 5, 6, 7]
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drive-strength-microamp:
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enum: [125, 250, 500, 1000]
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bias-pull-down:
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oneOf:
@@ -293,7 +270,7 @@ examples:
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pinmux = <PINMUX_GPIO127__FUNC_SCL0>,
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<PINMUX_GPIO128__FUNC_SDA0>;
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bias-pull-up = <MTK_PULL_SET_RSEL_001>;
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mediatek,drive-strength-adv = <7>;
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drive-strength-microamp = <1000>;
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};
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};
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};

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