| Message ID | 20210922025640.11600-3-zhiyong.tao@mediatek.com |
|---|---|
| State | New |
| Headers | show |
| Series | Mediatek pinctrl patch on mt8195 | expand |
On Wed, Sep 22, 2021 at 10:56:37AM +0800, Zhiyong Tao wrote: > For supporting SI units in "bias-pull-down" & "bias-pull-up", > Change pull up/down description > > Signed-off-by: Zhiyong Tao <zhiyong.tao@mediatek.com> > --- > .../bindings/pinctrl/pinctrl-mt8195.yaml | 65 ++++++++++++++++++- > 1 file changed, 63 insertions(+), 2 deletions(-) > > diff --git a/Documentation/devicetree/bindings/pinctrl/pinctrl-mt8195.yaml b/Documentation/devicetree/bindings/pinctrl/pinctrl-mt8195.yaml > index 2f12ec59eee5..2f2afabbe4fc 100644 > --- a/Documentation/devicetree/bindings/pinctrl/pinctrl-mt8195.yaml > +++ b/Documentation/devicetree/bindings/pinctrl/pinctrl-mt8195.yaml > @@ -85,9 +85,70 @@ patternProperties: > 2/4/6/8/10/12/14/16mA in mt8195. > enum: [0, 1, 2, 3, 4, 5, 6, 7] > > - bias-pull-down: true > + bias-pull-down: > + description: | > + For pull down type is normal, it don't need add RSEL & R1R0 define > + and resistance value. > + For pull down type is PUPD/R0/R1 type, it can add R1R0 define to > + set different resistance. It can support "MTK_PUPD_SET_R1R0_00" & > + "MTK_PUPD_SET_R1R0_01" & "MTK_PUPD_SET_R1R0_10" & "MTK_PUPD_SET_R1R0_11" > + define in mt8195. > + For pull down type is RSEL, it can add RSEL define & resistance value(ohm) > + to set different resistance by identifying property "mediatek,rsel_resistance_in_si_unit". > + It can support "MTK_PULL_SET_RSEL_000" & "MTK_PULL_SET_RSEL_001" > + & "MTK_PULL_SET_RSEL_010" & "MTK_PULL_SET_RSEL_011" & "MTK_PULL_SET_RSEL_100" > + & "MTK_PULL_SET_RSEL_101" & "MTK_PULL_SET_RSEL_110" & "MTK_PULL_SET_RSEL_111" > + define in mt8195. It can also support resistance value(ohm) "75000" & "5000" in mt8195. Please make a schema: oneOf: - enum: [ 0, 1, ...7 ] - description: MT8195... enum: [ 5000, 75000 ] > + An example of using RSEL define: > + pincontroller { > + i2c0_pin { > + pinmux = <PINMUX_GPIO8__FUNC_SDA0>; > + bias-pull-down = <MTK_PULL_SET_RSEL_001>; > + }; > + }; > + An example of using si unit resistance value(ohm): > + &pio { > + mediatek,rsel_resistance_in_si_unit; > + } > + pincontroller { > + i2c0_pin { > + pinmux = <PINMUX_GPIO8__FUNC_SDA0>; > + bias-pull-down = <75000>; > + }; > + }; > > - bias-pull-up: true > + bias-pull-up: > + description: | > + For pull up type is normal, it don't need add RSEL & R1R0 define > + and resistance value. > + For pull up type is PUPD/R0/R1 type, it can add R1R0 define to > + set different resistance. It can support "MTK_PUPD_SET_R1R0_00" & > + "MTK_PUPD_SET_R1R0_01" & "MTK_PUPD_SET_R1R0_10" & "MTK_PUPD_SET_R1R0_11" > + define in mt8195. > + For pull up type is RSEL, it can add RSEL define & resistance value(ohm) > + to set different resistance by identifying property "mediatek,rsel_resistance_in_si_unit". > + It can support "MTK_PULL_SET_RSEL_000" & "MTK_PULL_SET_RSEL_001" > + & "MTK_PULL_SET_RSEL_010" & "MTK_PULL_SET_RSEL_011" & "MTK_PULL_SET_RSEL_100" > + & "MTK_PULL_SET_RSEL_101" & "MTK_PULL_SET_RSEL_110" & "MTK_PULL_SET_RSEL_111" > + define in mt8195. It can also support resistance value(ohm) > + "1000" & "1500" & "2000" & "3000" & "4000" & "5000" & "10000" & "75000" in mt8195. Same here. > + An example of using RSEL define: > + pincontroller { > + i2c0_pin { > + pinmux = <PINMUX_GPIO8__FUNC_SDA0>; > + bias-pull-up = <MTK_PULL_SET_RSEL_001>; > + }; > + }; > + An example of using si unit resistance value(ohm): > + &pio { > + mediatek,rsel_resistance_in_si_unit; > + } > + pincontroller { > + i2c0_pin { > + pinmux = <PINMUX_GPIO8__FUNC_SDA0>; > + bias-pull-up = <1000>; > + }; > + }; > > bias-disable: true > > -- > 2.25.1 > >
diff --git a/Documentation/devicetree/bindings/pinctrl/pinctrl-mt8195.yaml b/Documentation/devicetree/bindings/pinctrl/pinctrl-mt8195.yaml index 2f12ec59eee5..2f2afabbe4fc 100644 --- a/Documentation/devicetree/bindings/pinctrl/pinctrl-mt8195.yaml +++ b/Documentation/devicetree/bindings/pinctrl/pinctrl-mt8195.yaml @@ -85,9 +85,70 @@ patternProperties: 2/4/6/8/10/12/14/16mA in mt8195. enum: [0, 1, 2, 3, 4, 5, 6, 7] - bias-pull-down: true + bias-pull-down: + description: | + For pull down type is normal, it don't need add RSEL & R1R0 define + and resistance value. + For pull down type is PUPD/R0/R1 type, it can add R1R0 define to + set different resistance. It can support "MTK_PUPD_SET_R1R0_00" & + "MTK_PUPD_SET_R1R0_01" & "MTK_PUPD_SET_R1R0_10" & "MTK_PUPD_SET_R1R0_11" + define in mt8195. + For pull down type is RSEL, it can add RSEL define & resistance value(ohm) + to set different resistance by identifying property "mediatek,rsel_resistance_in_si_unit". + It can support "MTK_PULL_SET_RSEL_000" & "MTK_PULL_SET_RSEL_001" + & "MTK_PULL_SET_RSEL_010" & "MTK_PULL_SET_RSEL_011" & "MTK_PULL_SET_RSEL_100" + & "MTK_PULL_SET_RSEL_101" & "MTK_PULL_SET_RSEL_110" & "MTK_PULL_SET_RSEL_111" + define in mt8195. It can also support resistance value(ohm) "75000" & "5000" in mt8195. + An example of using RSEL define: + pincontroller { + i2c0_pin { + pinmux = <PINMUX_GPIO8__FUNC_SDA0>; + bias-pull-down = <MTK_PULL_SET_RSEL_001>; + }; + }; + An example of using si unit resistance value(ohm): + &pio { + mediatek,rsel_resistance_in_si_unit; + } + pincontroller { + i2c0_pin { + pinmux = <PINMUX_GPIO8__FUNC_SDA0>; + bias-pull-down = <75000>; + }; + }; - bias-pull-up: true + bias-pull-up: + description: | + For pull up type is normal, it don't need add RSEL & R1R0 define + and resistance value. + For pull up type is PUPD/R0/R1 type, it can add R1R0 define to + set different resistance. It can support "MTK_PUPD_SET_R1R0_00" & + "MTK_PUPD_SET_R1R0_01" & "MTK_PUPD_SET_R1R0_10" & "MTK_PUPD_SET_R1R0_11" + define in mt8195. + For pull up type is RSEL, it can add RSEL define & resistance value(ohm) + to set different resistance by identifying property "mediatek,rsel_resistance_in_si_unit". + It can support "MTK_PULL_SET_RSEL_000" & "MTK_PULL_SET_RSEL_001" + & "MTK_PULL_SET_RSEL_010" & "MTK_PULL_SET_RSEL_011" & "MTK_PULL_SET_RSEL_100" + & "MTK_PULL_SET_RSEL_101" & "MTK_PULL_SET_RSEL_110" & "MTK_PULL_SET_RSEL_111" + define in mt8195. It can also support resistance value(ohm) + "1000" & "1500" & "2000" & "3000" & "4000" & "5000" & "10000" & "75000" in mt8195. + An example of using RSEL define: + pincontroller { + i2c0_pin { + pinmux = <PINMUX_GPIO8__FUNC_SDA0>; + bias-pull-up = <MTK_PULL_SET_RSEL_001>; + }; + }; + An example of using si unit resistance value(ohm): + &pio { + mediatek,rsel_resistance_in_si_unit; + } + pincontroller { + i2c0_pin { + pinmux = <PINMUX_GPIO8__FUNC_SDA0>; + bias-pull-up = <1000>; + }; + }; bias-disable: true
For supporting SI units in "bias-pull-down" & "bias-pull-up", Change pull up/down description Signed-off-by: Zhiyong Tao <zhiyong.tao@mediatek.com> --- .../bindings/pinctrl/pinctrl-mt8195.yaml | 65 ++++++++++++++++++- 1 file changed, 63 insertions(+), 2 deletions(-)