aboutsummaryrefslogtreecommitdiffstats
path: root/Documentation/devicetree/bindings/pinctrl/mediatek,mt8196-pinctrl.yaml
diff options
context:
space:
mode:
Diffstat (limited to 'Documentation/devicetree/bindings/pinctrl/mediatek,mt8196-pinctrl.yaml')
-rw-r--r--Documentation/devicetree/bindings/pinctrl/mediatek,mt8196-pinctrl.yaml236
1 files changed, 236 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/pinctrl/mediatek,mt8196-pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/mediatek,mt8196-pinctrl.yaml
new file mode 100644
index 000000000000..9082bd625e2f
--- /dev/null
+++ b/Documentation/devicetree/bindings/pinctrl/mediatek,mt8196-pinctrl.yaml
@@ -0,0 +1,236 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pinctrl/mediatek,mt8196-pinctrl.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MediaTek MT8196 Pin Controller
+
+maintainers:
+ - Lei Xue <lei.xue@mediatek.com>
+ - Cathy Xu <ot_cathy.xu@mediatek.com>
+
+description:
+ The MediaTek's MT8196 Pin controller is used to control SoC pins.
+
+properties:
+ compatible:
+ const: mediatek,mt8196-pinctrl
+
+ reg:
+ items:
+ - description: gpio base
+ - description: rt group IO
+ - description: rm1 group IO
+ - description: rm2 group IO
+ - description: rb group IO
+ - description: bm1 group IO
+ - description: bm2 group IO
+ - description: bm3 group IO
+ - description: lt group IO
+ - description: lm1 group IO
+ - description: lm2 group IO
+ - description: lb1 group IO
+ - description: lb2 group IO
+ - description: tm1 group IO
+ - description: tm2 group IO
+ - description: tm3 group IO
+ - description: eint0 group IO
+ - description: eint1 group IO
+ - description: eint2 group IO
+ - description: eint3 group IO
+ - description: eint4 group IO
+
+ reg-names:
+ items:
+ - const: base
+ - const: rt
+ - const: rm1
+ - const: rm2
+ - const: rb
+ - const: bm1
+ - const: bm2
+ - const: bm3
+ - const: lt
+ - const: lm1
+ - const: lm2
+ - const: lb1
+ - const: lb2
+ - const: tm1
+ - const: tm2
+ - const: tm3
+ - const: eint0
+ - const: eint1
+ - const: eint2
+ - const: eint3
+ - const: eint4
+
+ interrupts:
+ description: The interrupt outputs to sysirq.
+ maxItems: 1
+
+ interrupt-controller: true
+
+ '#interrupt-cells':
+ const: 2
+
+ gpio-controller: true
+
+ '#gpio-cells':
+ description:
+ Number of cells in GPIO specifier, should be two. The first cell is the
+ pin number, the second cell is used to specify optional parameters which
+ are defined in <dt-bindings/gpio/gpio.h>.
+ const: 2
+
+ gpio-ranges:
+ maxItems: 1
+
+ gpio-line-names: true
+
+# PIN CONFIGURATION NODES
+patternProperties:
+ '-pins$':
+ type: object
+ additionalProperties: false
+
+ patternProperties:
+ '^pins':
+ type: object
+ $ref: /schemas/pinctrl/pincfg-node.yaml
+ additionalProperties: false
+ description:
+ A pinctrl node should contain at least one subnode 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.
+
+ 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 arch/arm64/boot/dts/mediatek/mt8196-pinfunc.h
+ directly, for this SoC.
+
+ drive-strength:
+ enum: [2, 4, 6, 8, 10, 12, 14, 16]
+
+ bias-pull-down:
+ oneOf:
+ - type: boolean
+ - enum: [100, 101, 102, 103]
+ description: mt8196 pull down PUPD/R0/R1 type define value.
+ - enum: [75000, 5000]
+ description: mt8196 pull down RSEL type si unit value(ohm).
+ description: |
+ For pull down type is normal, it doesn't need add 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 mt8196.
+ For pull down type is PD/RSEL, it can add resistance value(ohm)
+ to set different resistance by identifying property
+ "mediatek,rsel-resistance-in-si-unit". It can support resistance
+ value(ohm) "75000" & "5000" in mt8196.
+
+ bias-pull-up:
+ oneOf:
+ - type: boolean
+ - enum: [100, 101, 102, 103]
+ description: mt8196 pull up PUPD/R0/R1 type define value.
+ - enum: [1000, 1500, 2000, 3000, 4000, 5000, 75000]
+ description: mt8196 pull up RSEL type si unit value(ohm).
+ description: |
+ For pull up type is normal, it don't need add 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 mt8196.
+ For pull up type is PU/RSEL, it can add resistance value(ohm)
+ to set different resistance by identifying property
+ "mediatek,rsel-resistance-in-si-unit". It can support resistance
+ value(ohm) "1000" & "1500" & "2000" & "3000" & "4000" & "5000" &
+ "75000" in mt8196.
+
+ 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
+ - reg
+ - interrupts
+ - interrupt-controller
+ - '#interrupt-cells'
+ - gpio-controller
+ - '#gpio-cells'
+ - gpio-ranges
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/pinctrl/mt65xx.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #define PINMUX_GPIO99__FUNC_SCL0 (MTK_PIN_NO(99) | 1)
+ #define PINMUX_GPIO100__FUNC_SDA0 (MTK_PIN_NO(100) | 1)
+
+ pio: pinctrl@1002d000 {
+ compatible = "mediatek,mt8196-pinctrl";
+ reg = <0x1002d000 0x1000>,
+ <0x12000000 0x1000>,
+ <0x12020000 0x1000>,
+ <0x12040000 0x1000>,
+ <0x12060000 0x1000>,
+ <0x12820000 0x1000>,
+ <0x12840000 0x1000>,
+ <0x12860000 0x1000>,
+ <0x13000000 0x1000>,
+ <0x13020000 0x1000>,
+ <0x13040000 0x1000>,
+ <0x130f0000 0x1000>,
+ <0x13110000 0x1000>,
+ <0x13800000 0x1000>,
+ <0x13820000 0x1000>,
+ <0x13860000 0x1000>,
+ <0x12080000 0x1000>,
+ <0x12880000 0x1000>,
+ <0x13080000 0x1000>,
+ <0x13880000 0x1000>,
+ <0x1c54a000 0x1000>;
+ reg-names = "base", "rt", "rm1", "rm2", "rb" , "bm1",
+ "bm2", "bm3", "lt", "lm1", "lm2", "lb1",
+ "lb2", "tm1", "tm2", "tm3", "eint0", "eint1",
+ "eint2", "eint3", "eint4";
+ gpio-controller;
+ #gpio-cells = <2>;
+ gpio-ranges = <&pio 0 0 271>;
+ interrupt-controller;
+ interrupts = <GIC_SPI 396 IRQ_TYPE_LEVEL_HIGH 0>;
+ #interrupt-cells = <2>;
+
+ i2c0-pins {
+ pins {
+ pinmux = <PINMUX_GPIO99__FUNC_SCL0>,
+ <PINMUX_GPIO100__FUNC_SDA0>;
+ bias-disable;
+ };
+ };
+ };
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.