1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
4 $id: http://devicetree.org/schemas/pinctrl/mediatek,mt6795-pinctrl.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: MediaTek MT6795 Pin Controller
10 - AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
11 - Sean Wang <sean.wang@kernel.org>
14 The MediaTek's MT6795 Pin controller is used to control SoC pins.
18 const: mediatek,mt6795-pinctrl
24 Number of cells in GPIO specifier. Since the generic GPIO binding is used,
25 the amount of cells must be specified as 2. See the below
26 mentioned gpio binding representation for description of particular cells.
30 description: GPIO valid number range.
35 Physical address base for gpio base and eint registers.
43 interrupt-controller: true
49 description: Interrupt outputs to the system interrupt controller (sysirq).
52 - description: EINT interrupt
53 - description: EINT event_b interrupt
55 # PIN CONFIGURATION NODES
59 additionalProperties: false
63 additionalProperties: false
65 A pinctrl node should contain at least one subnodes representing the
66 pinctrl groups available on the machine. Each subnode will list the
67 pins it needs, and how they should be configured, with regard to muxer
68 configuration, pullups, drive strength, input enable/disable and
70 An example of using macro:
72 /* GPIO0 set as multifunction GPIO0 */
75 pinmux = <PINMUX_GPIO0__FUNC_GPIO0>;
78 /* GPIO45 set as multifunction SDA0 */
81 pinmux = <PINMUX_GPIO45__FUNC_SDA0>;
85 $ref: "pinmux-node.yaml"
90 Integer array, represents gpio pin number and mux setting.
91 Supported pin number and mux varies for different SoCs, and are
92 defined as macros in dt-bindings/pinctrl/<soc>-pinfunc.h
96 enum: [2, 4, 6, 8, 10, 12, 14, 16]
101 - enum: [100, 101, 102, 103]
102 description: mt6795 pull down PUPD/R0/R1 type define value.
104 For normal pull down type, it is not necessary to specify R1R0
105 values; When pull down type is PUPD/R0/R1, adding R1R0 defines
106 will set different resistance values.
111 - enum: [100, 101, 102, 103]
112 description: mt6795 pull up PUPD/R0/R1 type define value.
114 For normal pull up type, it is not necessary to specify R1R0
115 values; When pull up type is PUPD/R0/R1, adding R1R0 defines
116 will set different resistance values.
128 input-schmitt-enable: true
130 input-schmitt-disable: true
132 mediatek,pull-up-adv:
134 Pull up setings for 2 pull resistors, R0 and R1. User can
135 configure those special pins. Valid arguments are described as below:
136 0: (R1, R0) = (0, 0) which means R1 disabled and R0 disabled.
137 1: (R1, R0) = (0, 1) which means R1 disabled and R0 enabled.
138 2: (R1, R0) = (1, 0) which means R1 enabled and R0 disabled.
139 3: (R1, R0) = (1, 1) which means R1 enabled and R0 enabled.
140 $ref: /schemas/types.yaml#/definitions/uint32
143 mediatek,pull-down-adv:
145 Pull down settings for 2 pull resistors, R0 and R1. User can
146 configure those special pins. Valid arguments are described as below:
147 0: (R1, R0) = (0, 0) which means R1 disabled and R0 disabled.
148 1: (R1, R0) = (0, 1) which means R1 disabled and R0 enabled.
149 2: (R1, R0) = (1, 0) which means R1 enabled and R0 disabled.
150 3: (R1, R0) = (1, 1) which means R1 enabled and R0 enabled.
151 $ref: /schemas/types.yaml#/definitions/uint32
158 - $ref: "pinctrl.yaml#"
165 - interrupt-controller
171 additionalProperties: false
175 #include <dt-bindings/interrupt-controller/arm-gic.h>
176 #include <dt-bindings/interrupt-controller/irq.h>
177 #include <dt-bindings/pinctrl/mt6795-pinfunc.h>
180 #address-cells = <2>;
183 pio: pinctrl@10005000 {
184 compatible = "mediatek,mt6795-pinctrl";
185 reg = <0 0x10005000 0 0x1000>, <0 0x1000b000 0 0x1000>;
186 reg-names = "base", "eint";
189 gpio-ranges = <&pio 0 0 196>;
190 interrupt-controller;
191 interrupts = <GIC_SPI 153 IRQ_TYPE_LEVEL_HIGH>;
192 #interrupt-cells = <2>;
196 pinmux = <PINMUX_GPIO45__FUNC_SDA0>,
197 <PINMUX_GPIO46__FUNC_SCL0>;
203 pinmux = <PINMUX_GPIO154__FUNC_MSDC0_DAT0>,
204 <PINMUX_GPIO155__FUNC_MSDC0_DAT1>,
205 <PINMUX_GPIO156__FUNC_MSDC0_DAT2>,
206 <PINMUX_GPIO157__FUNC_MSDC0_DAT3>,
207 <PINMUX_GPIO158__FUNC_MSDC0_DAT4>,
208 <PINMUX_GPIO159__FUNC_MSDC0_DAT5>,
209 <PINMUX_GPIO160__FUNC_MSDC0_DAT6>,
210 <PINMUX_GPIO161__FUNC_MSDC0_DAT7>,
211 <PINMUX_GPIO162__FUNC_MSDC0_CMD>;
213 bias-pull-up = <MTK_PUPD_SET_R1R0_01>;
217 pinmux = <PINMUX_GPIO163__FUNC_MSDC0_CLK>;
218 bias-pull-down = <MTK_PUPD_SET_R1R0_10>;
222 pinmux = <PINMUX_GPIO165__FUNC_MSDC0_RSTB>;
223 bias-pull-up = <MTK_PUPD_SET_R1R0_10>;