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Date: Sun, 12 Dec 2021 04:40:13 +0800
From: Tinghan Shen <tinghan.shen@...iatek.com>
To: <robh+dt@...nel.org>, <linus.walleij@...aro.org>,
<matthias.bgg@...il.com>, <broonie@...nel.org>
CC: <bgolaszewski@...libre.com>, <sean.wang@...iatek.com>,
<bayi.cheng@...iatek.com>, <gch981213@...il.com>,
<devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
<linux-gpio@...r.kernel.org>,
<linux-arm-kernel@...ts.infradead.org>,
<linux-mediatek@...ts.infradead.org>, <linux-spi@...r.kernel.org>,
<Project_Global_Chrome_Upstream_Group@...iatek.com>,
Tinghan Shen <tinghan.shen@...iatek.com>
Subject: [PATCH v6 3/4] dt-bindings: pinctrl: mt8195: add 'pins' wrapping node
The mt8195 pinctrl driver requires a 'pins' subnode to wrap pin properties.
Signed-off-by: Tinghan Shen <tinghan.shen@...iatek.com>
---
.../bindings/pinctrl/pinctrl-mt8195.yaml | 307 +++++++++---------
1 file changed, 160 insertions(+), 147 deletions(-)
diff --git a/Documentation/devicetree/bindings/pinctrl/pinctrl-mt8195.yaml b/Documentation/devicetree/bindings/pinctrl/pinctrl-mt8195.yaml
index 5e2bb2bf3a55..2035bf164740 100644
--- a/Documentation/devicetree/bindings/pinctrl/pinctrl-mt8195.yaml
+++ b/Documentation/devicetree/bindings/pinctrl/pinctrl-mt8195.yaml
@@ -59,133 +59,143 @@ properties:
patternProperties:
'-pins$':
type: object
- description: |
- A pinctrl node should contain at least one subnodes representing the
- pinctrl groups available on the machine. Each subnode will list the
- pins it needs, and how they should be configured, with regard to muxer
- configuration, pullups, drive strength, input enable/disable and
- input schmitt.
- An example of using macro:
- pincontroller {
- /* GPIO0 set as multifunction GPIO0 */
- gpio_pin {
- pinmux = <PINMUX_GPIO0__FUNC_GPIO0>;
- };
- /* GPIO8 set as multifunction SDA0 */
- i2c0_pin {
- pinmux = <PINMUX_GPIO8__FUNC_SDA0>;
- };
- };
- $ref: "pinmux-node.yaml"
-
- properties:
- pinmux:
- description: |
- Integer array, represents gpio pin number and mux setting.
- Supported pin number and mux varies for different SoCs, and are defined
- as macros in dt-bindings/pinctrl/<soc>-pinfunc.h directly.
-
- drive-strength:
- enum: [2, 4, 6, 8, 10, 12, 14, 16]
-
- 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.
- oneOf:
- - enum: [100, 101, 102, 103]
- - description: mt8195 pull down PUPD/R0/R1 type define value.
- - enum: [200, 201, 202, 203, 204, 205, 206, 207]
- - description: mt8195 pull down RSEL type define value.
- - enum: [75000, 5000]
- - description: mt8195 pull down RSEL type si unit value(ohm).
-
- 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:
+ additionalProperties: false
+ patternProperties:
+ 'pins':
+ type: object
+ additionalProperties: false
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.
- oneOf:
- - enum: [100, 101, 102, 103]
- - description: mt8195 pull up PUPD/R0/R1 type define value.
- - enum: [200, 201, 202, 203, 204, 205, 206, 207]
- - description: mt8195 pull up RSEL type define value.
- - enum: [1000, 1500, 2000, 3000, 4000, 5000, 10000, 75000]
- - description: mt8195 pull up RSEL type si unit value(ohm).
- An example of using RSEL define:
+ A pinctrl node should contain at least one subnodes representing the
+ pinctrl groups available on the machine. Each subnode will list the
+ pins it needs, and how they should be configured, with regard to muxer
+ configuration, pullups, drive strength, input enable/disable and
+ input schmitt.
+ An example of using macro:
pincontroller {
- i2c0_pin {
- pinmux = <PINMUX_GPIO8__FUNC_SDA0>;
- bias-pull-up = <MTK_PULL_SET_RSEL_001>;
+ /* GPIO0 set as multifunction GPIO0 */
+ gpio_pin {
+ pinmux = <PINMUX_GPIO0__FUNC_GPIO0>;
};
- };
- An example of using si unit resistance value(ohm):
- &pio {
- mediatek,rsel_resistance_in_si_unit;
- }
- pincontroller {
+ /* GPIO8 set as multifunction SDA0 */
i2c0_pin {
pinmux = <PINMUX_GPIO8__FUNC_SDA0>;
- bias-pull-up = <1000>;
};
};
-
- bias-disable: true
-
- output-high: true
-
- output-low: true
-
- input-enable: true
-
- input-disable: true
-
- input-schmitt-enable: true
-
- input-schmitt-disable: true
-
- required:
- - pinmux
-
- additionalProperties: false
+ $ref: "pinmux-node.yaml"
+
+ properties:
+ pinmux:
+ description: |
+ Integer array, represents gpio pin number and mux setting.
+ Supported pin number and mux varies for different SoCs, and are
+ defined as macros in dt-bindings/pinctrl/<soc>-pinfunc.h
+ directly.
+
+ drive-strength:
+ enum: [2, 4, 6, 8, 10, 12, 14, 16]
+
+ 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.
+ oneOf:
+ - enum: [100, 101, 102, 103]
+ - description: mt8195 pull down PUPD/R0/R1 type define value.
+ - enum: [200, 201, 202, 203, 204, 205, 206, 207]
+ - description: mt8195 pull down RSEL type define value.
+ - enum: [75000, 5000]
+ - description: mt8195 pull down RSEL type si unit value(ohm).
+
+ 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:
+ 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.
+ oneOf:
+ - enum: [100, 101, 102, 103]
+ - description: mt8195 pull up PUPD/R0/R1 type define value.
+ - enum: [200, 201, 202, 203, 204, 205, 206, 207]
+ - description: mt8195 pull up RSEL type define value.
+ - enum: [1000, 1500, 2000, 3000, 4000, 5000, 10000, 75000]
+ - description: mt8195 pull up RSEL type si unit value(ohm).
+ 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
+
+ output-high: true
+
+ output-low: true
+
+ input-enable: true
+
+ input-disable: true
+
+ input-schmitt-enable: true
+
+ input-schmitt-disable: true
+
+ required:
+ - pinmux
required:
- compatible
@@ -201,30 +211,33 @@ additionalProperties: false
examples:
- |
- #include <dt-bindings/pinctrl/mt8195-pinfunc.h>
- #include <dt-bindings/interrupt-controller/arm-gic.h>
- pio: pinctrl@...05000 {
- compatible = "mediatek,mt8195-pinctrl";
- reg = <0x10005000 0x1000>,
- <0x11d10000 0x1000>,
- <0x11d30000 0x1000>,
- <0x11d40000 0x1000>,
- <0x11e20000 0x1000>,
- <0x11eb0000 0x1000>,
- <0x11f40000 0x1000>,
- <0x1000b000 0x1000>;
- reg-names = "iocfg0", "iocfg_bm", "iocfg_bl",
- "iocfg_br", "iocfg_lm", "iocfg_rb",
- "iocfg_tl", "eint";
- gpio-controller;
- #gpio-cells = <2>;
- gpio-ranges = <&pio 0 0 144>;
- interrupt-controller;
- interrupts = <GIC_SPI 225 IRQ_TYPE_LEVEL_HIGH 0>;
- #interrupt-cells = <2>;
-
- pio-pins {
- pinmux = <PINMUX_GPIO0__FUNC_GPIO0>;
- output-low;
- };
- };
+ #include <dt-bindings/pinctrl/mt8195-pinfunc.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #
+ pio: pinctrl@...05000 {
+ compatible = "mediatek,mt8195-pinctrl";
+ reg = <0x10005000 0x1000>,
+ <0x11d10000 0x1000>,
+ <0x11d30000 0x1000>,
+ <0x11d40000 0x1000>,
+ <0x11e20000 0x1000>,
+ <0x11eb0000 0x1000>,
+ <0x11f40000 0x1000>,
+ <0x1000b000 0x1000>;
+ reg-names = "iocfg0", "iocfg_bm", "iocfg_bl",
+ "iocfg_br", "iocfg_lm", "iocfg_rb",
+ "iocfg_tl", "eint";
+ gpio-controller;
+ #gpio-cells = <2>;
+ gpio-ranges = <&pio 0 0 144>;
+ interrupt-controller;
+ interrupts = <GIC_SPI 225 IRQ_TYPE_LEVEL_HIGH 0>;
+ #interrupt-cells = <2>;
+
+ pio-pins {
+ pins_bus {
+ pinmux = <PINMUX_GPIO0__FUNC_GPIO0>;
+ output-low;
+ };
+ };
+ };
--
2.18.0
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