xref: /linux/Documentation/devicetree/bindings/pinctrl/qcom,msm8226-pinctrl.yaml (revision 542898c5aa5c6a3179dffb1d1606884a63f75fed) 
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/pinctrl/qcom,msm8226-pinctrl.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Qualcomm Technologies, Inc. MSM8226 TLMM block
8
9maintainers:
10  - Bjorn Andersson <bjorn.andersson@linaro.org>
11
12description: |
13  This binding describes the Top Level Mode Multiplexer block found in the
14  MSM8226 platform.
15
16properties:
17  compatible:
18    const: qcom,msm8226-pinctrl
19
20  reg:
21    description: Specifies the base address and size of the TLMM register space
22    maxItems: 1
23
24  interrupts:
25    description: Specifies the TLMM summary IRQ
26    maxItems: 1
27
28  interrupt-controller: true
29
30  '#interrupt-cells':
31    description: Specifies the PIN numbers and Flags, as defined in
32      include/dt-bindings/interrupt-controller/irq.h
33    const: 2
34
35  gpio-controller: true
36
37  '#gpio-cells':
38    description: Specifying the pin number and flags, as defined in
39      include/dt-bindings/gpio/gpio.h
40    const: 2
41
42  gpio-ranges:
43    maxItems: 1
44
45  gpio-reserved-ranges:
46    maxItems: 1
47
48#PIN CONFIGURATION NODES
49patternProperties:
50  '-pins$':
51    type: object
52    description:
53      Pinctrl node's client devices use subnodes for desired pin configuration.
54      Client device subnodes use below standard properties.
55    $ref: "/schemas/pinctrl/pincfg-node.yaml"
56
57    properties:
58      pins:
59        description:
60          List of gpio pins affected by the properties specified in this
61          subnode.
62        items:
63          oneOf:
64            - pattern: "^gpio([0-9]|[1-9][0-9]|1[0-1][0-6])$"
65            - enum: [ sdc1_clk, sdc1_cmd, sdc1_data, sdc2_clk, sdc2_cmd, sdc2_data ]
66        minItems: 1
67        maxItems: 36
68
69      function:
70        description:
71          Specify the alternative function to be configured for the specified
72          pins. Functions are only valid for gpio pins.
73        enum: [ gpio, cci_i2c0, blsp_uim1, blsp_uim2, blsp_uim3, blsp_uim5,
74                blsp_i2c1, blsp_i2c2, blsp_i2c3, blsp_i2c5, blsp_spi1,
75                blsp_spi2, blsp_spi3, blsp_spi5, blsp_uart1, blsp_uart2,
76                blsp_uart3, blsp_uart5, cam_mclk0, cam_mclk1, wlan ]
77
78      drive-strength:
79        enum: [2, 4, 6, 8, 10, 12, 14, 16]
80        default: 2
81        description:
82          Selects the drive strength for the specified pins, in mA.
83
84      bias-pull-down: true
85
86      bias-pull-up: true
87
88      bias-disable: true
89
90      output-high: true
91
92      output-low: true
93
94    required:
95      - pins
96      - function
97
98    additionalProperties: false
99
100allOf:
101  - $ref: "pinctrl.yaml#"
102
103required:
104  - compatible
105  - reg
106  - interrupts
107  - interrupt-controller
108  - '#interrupt-cells'
109  - gpio-controller
110  - '#gpio-cells'
111  - gpio-ranges
112
113additionalProperties: false
114
115examples:
116  - |
117        #include <dt-bindings/interrupt-controller/arm-gic.h>
118        msmgpio: pinctrl@fd510000 {
119                compatible = "qcom,msm8226-pinctrl";
120                reg = <0xfd510000 0x4000>;
121
122                gpio-controller;
123                #gpio-cells = <2>;
124                gpio-ranges = <&msmgpio 0 0 117>;
125                interrupt-controller;
126                #interrupt-cells = <2>;
127                interrupts = <GIC_SPI 208 IRQ_TYPE_LEVEL_HIGH>;
128
129                serial-pins {
130                        pins = "gpio8", "gpio9";
131                        function = "blsp_uart3";
132                        drive-strength = <8>;
133                        bias-disable;
134                };
135        };
136