xref: /linux/Documentation/devicetree/bindings/pinctrl/qcom,sm8450-lpass-lpi-pinctrl.yaml (revision c532de5a67a70f8533d495f8f2aaa9a0491c3ad0) 
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/pinctrl/qcom,sm8450-lpass-lpi-pinctrl.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Qualcomm SM8450 SoC LPASS LPI TLMM
8
9maintainers:
10  - Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
11
12description:
13  Top Level Mode Multiplexer pin controller in the Low Power Audio SubSystem
14  (LPASS) Low Power Island (LPI) of Qualcomm SM8450 SoC.
15
16properties:
17  compatible:
18    const: qcom,sm8450-lpass-lpi-pinctrl
19
20  reg:
21    items:
22      - description: LPASS LPI TLMM Control and Status registers
23      - description: LPASS LPI MCC registers
24
25  clocks:
26    items:
27      - description: LPASS Core voting clock
28      - description: LPASS Audio voting clock
29
30  clock-names:
31    items:
32      - const: core
33      - const: audio
34
35patternProperties:
36  "-state$":
37    oneOf:
38      - $ref: "#/$defs/qcom-sm8450-lpass-state"
39      - patternProperties:
40          "-pins$":
41            $ref: "#/$defs/qcom-sm8450-lpass-state"
42        additionalProperties: false
43
44$defs:
45  qcom-sm8450-lpass-state:
46    type: object
47    description:
48      Pinctrl node's client devices use subnodes for desired pin configuration.
49      Client device subnodes use below standard properties.
50    $ref: qcom,lpass-lpi-common.yaml#/$defs/qcom-tlmm-state
51    unevaluatedProperties: false
52
53    properties:
54      pins:
55        description:
56          List of gpio pins affected by the properties specified in this
57          subnode.
58        items:
59          pattern: "^gpio([0-9]|1[0-9]|2[0-2])$"
60
61      function:
62        enum: [ swr_tx_clk, swr_tx_data, swr_rx_clk, swr_rx_data,
63                dmic1_clk, dmic1_data, dmic2_clk, dmic2_data, dmic4_clk,
64                dmic4_data, i2s2_clk, i2s2_ws, dmic3_clk, dmic3_data,
65                qua_mi2s_sclk, qua_mi2s_ws, qua_mi2s_data, i2s1_clk, i2s1_ws,
66                i2s1_data, wsa_swr_clk, wsa_swr_data, wsa2_swr_clk,
67                wsa2_swr_data, i2s2_data, i2s4_ws, i2s4_clk, i2s4_data,
68                slimbus_clk, i2s3_clk, i2s3_ws, i2s3_data, slimbus_data,
69                ext_mclk1_c, ext_mclk1_b, ext_mclk1_a, ext_mclk1_d,
70                ext_mclk1_e ]
71        description:
72          Specify the alternative function to be configured for the specified
73          pins.
74
75allOf:
76  - $ref: qcom,lpass-lpi-common.yaml#
77
78required:
79  - compatible
80  - reg
81  - clocks
82  - clock-names
83
84unevaluatedProperties: false
85
86examples:
87  - |
88    #include <dt-bindings/sound/qcom,q6afe.h>
89    pinctrl@3440000 {
90        compatible = "qcom,sm8450-lpass-lpi-pinctrl";
91        reg = <0x3440000 0x20000>,
92              <0x34d0000 0x10000>;
93        clocks = <&q6afecc LPASS_HW_MACRO_VOTE LPASS_CLK_ATTRIBUTE_COUPLE_NO>,
94                 <&q6afecc LPASS_HW_DCODEC_VOTE LPASS_CLK_ATTRIBUTE_COUPLE_NO>;
95        clock-names = "core", "audio";
96        gpio-controller;
97        #gpio-cells = <2>;
98        gpio-ranges = <&lpi_tlmm 0 0 23>;
99
100        wsa-swr-active-state {
101            clk-pins {
102                pins = "gpio10";
103                function = "wsa_swr_clk";
104                drive-strength = <2>;
105                slew-rate = <1>;
106                bias-disable;
107            };
108
109            data-pins {
110                pins = "gpio11";
111                function = "wsa_swr_data";
112                drive-strength = <2>;
113                slew-rate = <1>;
114            };
115        };
116
117        tx-swr-sleep-clk-state {
118            pins = "gpio0";
119            function = "swr_tx_clk";
120            drive-strength = <2>;
121            bias-pull-down;
122        };
123    };
124