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dt-bindings: pinctrl: mt8186: Add and use drive-strength-microamp 

Commit e5fabbe43f ("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: 338e953f1b ("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>
This commit is contained in:
Allen-KH Cheng 2022-07-25 19:07:02 +08:00 committed by Linus Walleij
parent f174b668fe
commit f4526ae80d
1 changed files with 3 additions and 26 deletions
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29
Documentation/devicetree/bindings/pinctrl/pinctrl-mt8186.yaml
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@ -107,31 +107,8 @@ patternProperties:
drive-strength: drive-strength:
enum: [2, 4, 6, 8, 10, 12, 14, 16] enum: [2, 4, 6, 8, 10, 12, 14, 16]
mediatek,drive-strength-adv: drive-strength-microamp:
description: | enum: [125, 250, 500, 1000]
Describe the specific driving setup property.
For I2C pins, the existing generic driving setup can only support
2/4/6/8/10/12/14/16mA driving. But in specific driving setup, they
can support 0.125/0.25/0.5/1mA adjustment. If we enable specific
driving setup, the existing generic setup will be disabled.
The specific driving setup is controlled by E1E0EN.
When E1=0/E0=0, the strength is 0.125mA.
When E1=0/E0=1, the strength is 0.25mA.
When E1=1/E0=0, the strength is 0.5mA.
When E1=1/E0=1, the strength is 1mA.
EN is used to enable or disable the specific driving setup.
Valid arguments are described as below:
0: (E1, E0, EN) = (0, 0, 0)
1: (E1, E0, EN) = (0, 0, 1)
2: (E1, E0, EN) = (0, 1, 0)
3: (E1, E0, EN) = (0, 1, 1)
4: (E1, E0, EN) = (1, 0, 0)
5: (E1, E0, EN) = (1, 0, 1)
6: (E1, E0, EN) = (1, 1, 0)
7: (E1, E0, EN) = (1, 1, 1)
So the valid arguments are from 0 to 7.
$ref: /schemas/types.yaml#/definitions/uint32
enum: [0, 1, 2, 3, 4, 5, 6, 7]
bias-pull-down: bias-pull-down:
oneOf: oneOf:
@ -293,7 +270,7 @@ examples:
pinmux = <PINMUX_GPIO127__FUNC_SCL0>, pinmux = <PINMUX_GPIO127__FUNC_SCL0>,
<PINMUX_GPIO128__FUNC_SDA0>; <PINMUX_GPIO128__FUNC_SDA0>;
bias-pull-up = <MTK_PULL_SET_RSEL_001>; bias-pull-up = <MTK_PULL_SET_RSEL_001>;
mediatek,drive-strength-adv = <7>; drive-strength-microamp = <1000>;
}; };
}; };
}; };