drm/bridge: Fix assignment of the of_node of the parent to aux bridge
[drm/drm-misc.git] / Documentation / devicetree / bindings / pinctrl / mediatek,mt6779-pinctrl.yaml
blob3bbc00df5548d4d5031b0bf82c7d7256b0e0ce2d
1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/pinctrl/mediatek,mt6779-pinctrl.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: MediaTek MT6779 Pin Controller
9 maintainers:
10   - Andy Teng <andy.teng@mediatek.com>
11   - Sean Wang <sean.wang@kernel.org>
13 description:
14   The MediaTek pin controller on MT6779 is used to control pin functions, pull
15   up/down resistance and drive strength options.
17 properties:
18   compatible:
19     enum:
20       - mediatek,mt6779-pinctrl
21       - mediatek,mt6797-pinctrl
23   reg:
24     description: Physical addresses for GPIO base(s) and EINT registers.
26   reg-names: true
28   gpio-controller: true
30   "#gpio-cells":
31     const: 2
32     description:
33       Number of cells in GPIO specifier. Since the generic GPIO binding is used,
34       the amount of cells must be specified as 2. See the below mentioned gpio
35       binding representation for description of particular cells.
37   gpio-ranges:
38     minItems: 1
39     maxItems: 5
40     description:
41       GPIO valid number range.
43   interrupt-controller: true
45   interrupts:
46     maxItems: 1
47     description:
48       Specifies the summary IRQ.
50   "#interrupt-cells":
51     const: 2
53 required:
54   - compatible
55   - reg
56   - reg-names
57   - gpio-controller
58   - "#gpio-cells"
60 allOf:
61   - $ref: pinctrl.yaml#
62   - if:
63       properties:
64         compatible:
65           contains:
66             const: mediatek,mt6779-pinctrl
67     then:
68       properties:
69         reg:
70           minItems: 9
71           maxItems: 9
73         reg-names:
74           items:
75             - const: gpio
76             - const: iocfg_rm
77             - const: iocfg_br
78             - const: iocfg_lm
79             - const: iocfg_lb
80             - const: iocfg_rt
81             - const: iocfg_lt
82             - const: iocfg_tl
83             - const: eint
84   - if:
85       properties:
86         compatible:
87           contains:
88             const: mediatek,mt6797-pinctrl
89     then:
90       properties:
91         reg:
92           minItems: 5
93           maxItems: 5
95         reg-names:
96           items:
97             - const: gpio
98             - const: iocfgl
99             - const: iocfgb
100             - const: iocfgr
101             - const: iocfgt
102   - if:
103       properties:
104         reg-names:
105           contains:
106             const: eint
107     then:
108       required:
109         - interrupts
110         - interrupt-controller
111         - "#interrupt-cells"
113 patternProperties:
114   '-[0-9]*$':
115     type: object
116     additionalProperties: false
118     patternProperties:
119       '-pins*$':
120         type: object
121         description:
122           A pinctrl node should contain at least one subnodes representing the
123           pinctrl groups available on the machine. Each subnode will list the
124           pins it needs, and how they should be configured, with regard to muxer
125           configuration, pullups, drive strength, input enable/disable and input
126           schmitt.
127         $ref: /schemas/pinctrl/pincfg-node.yaml
129         properties:
130           pinmux:
131             description:
132               Integer array, represents gpio pin number and mux setting.
133               Supported pin number and mux varies for different SoCs, and are
134               defined as macros in dt-bindings/pinctrl/<soc>-pinfunc.h directly.
136           bias-disable: true
138           bias-pull-up: true
140           bias-pull-down: true
142           input-enable: true
144           input-disable: true
146           output-low: true
148           output-high: true
150           input-schmitt-enable: true
152           input-schmitt-disable: true
154           drive-strength:
155             enum: [2, 4, 8, 12, 16]
157           slew-rate:
158             enum: [0, 1]
160           mediatek,pull-up-adv:
161             description: |
162               Pull up settings for 2 pull resistors, R0 and R1. User can
163               configure those special pins. Valid arguments are described as
164               below:
165               0: (R1, R0) = (0, 0) which means R1 disabled and R0 disabled.
166               1: (R1, R0) = (0, 1) which means R1 disabled and R0 enabled.
167               2: (R1, R0) = (1, 0) which means R1 enabled and R0 disabled.
168               3: (R1, R0) = (1, 1) which means R1 enabled and R0 enabled.
169             $ref: /schemas/types.yaml#/definitions/uint32
170             enum: [0, 1, 2, 3]
172           mediatek,pull-down-adv:
173             description: |
174               Pull down settings for 2 pull resistors, R0 and R1. User can
175               configure those special pins. Valid arguments are described as
176               below:
177               0: (R1, R0) = (0, 0) which means R1 disabled and R0 disabled.
178               1: (R1, R0) = (0, 1) which means R1 disabled and R0 enabled.
179               2: (R1, R0) = (1, 0) which means R1 enabled and R0 disabled.
180               3: (R1, R0) = (1, 1) which means R1 enabled and R0 enabled.
181             $ref: /schemas/types.yaml#/definitions/uint32
182             enum: [0, 1, 2, 3]
184         required:
185           - pinmux
187         additionalProperties: false
189 additionalProperties: false
191 examples:
192   - |
193     #include <dt-bindings/interrupt-controller/irq.h>
194     #include <dt-bindings/interrupt-controller/arm-gic.h>
195     #include <dt-bindings/pinctrl/mt6779-pinfunc.h>
197     soc {
198         #address-cells = <2>;
199         #size-cells = <2>;
201         pio: pinctrl@10005000 {
202             compatible = "mediatek,mt6779-pinctrl";
203             reg = <0 0x10005000 0 0x1000>,
204                 <0 0x11c20000 0 0x1000>,
205                 <0 0x11d10000 0 0x1000>,
206                 <0 0x11e20000 0 0x1000>,
207                 <0 0x11e70000 0 0x1000>,
208                 <0 0x11ea0000 0 0x1000>,
209                 <0 0x11f20000 0 0x1000>,
210                 <0 0x11f30000 0 0x1000>,
211                 <0 0x1000b000 0 0x1000>;
212             reg-names = "gpio", "iocfg_rm",
213               "iocfg_br", "iocfg_lm",
214               "iocfg_lb", "iocfg_rt",
215               "iocfg_lt", "iocfg_tl",
216               "eint";
217             gpio-controller;
218             #gpio-cells = <2>;
219             gpio-ranges = <&pio 0 0 210>;
220             interrupt-controller;
221             #interrupt-cells = <2>;
222             interrupts = <GIC_SPI 204 IRQ_TYPE_LEVEL_HIGH>;
224             mmc0_pins_default: mmc0-0 {
225                 cmd-dat-pins {
226                     pinmux = <PINMUX_GPIO168__FUNC_MSDC0_DAT0>,
227                         <PINMUX_GPIO172__FUNC_MSDC0_DAT1>,
228                         <PINMUX_GPIO169__FUNC_MSDC0_DAT2>,
229                         <PINMUX_GPIO177__FUNC_MSDC0_DAT3>,
230                         <PINMUX_GPIO170__FUNC_MSDC0_DAT4>,
231                         <PINMUX_GPIO173__FUNC_MSDC0_DAT5>,
232                         <PINMUX_GPIO171__FUNC_MSDC0_DAT6>,
233                         <PINMUX_GPIO174__FUNC_MSDC0_DAT7>,
234                         <PINMUX_GPIO167__FUNC_MSDC0_CMD>;
235                     input-enable;
236                     mediatek,pull-up-adv = <1>;
237                 };
238                 clk-pins {
239                     pinmux = <PINMUX_GPIO176__FUNC_MSDC0_CLK>;
240                     mediatek,pull-down-adv = <2>;
241                 };
242                 rst-pins {
243                     pinmux = <PINMUX_GPIO178__FUNC_MSDC0_RSTB>;
244                     mediatek,pull-up-adv = <0>;
245                 };
246             };
247         };
249         mmc0 {
250            pinctrl-0 = <&mmc0_pins_default>;
251            pinctrl-names = "default";
252         };
253     };