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,sm4250-lpass-lpi-pinctrl.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: Qualcomm SM4250 SoC LPASS LPI TLMM
8
9 maintainers:
10 - Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
11
12 description:
13 Top Level Mode Multiplexer pin controller in the Low Power Audio SubSystem
14 (LPASS) Low Power Island (LPI) of Qualcomm SM4250 SoC.
15
16 properties:
17 compatible:
18 const: qcom,sm4250-lpass-lpi-pinctrl
19
20 reg:
21 items:
22 - description: LPASS LPI TLMM Control and Status registers
23 - description: LPASS LPI MCC registers
24
25 clocks:
26 items:
27 - description: LPASS Audio voting clock
28
29 clock-names:
30 items:
31 - const: audio
32
33 patternProperties:
34 "-state$":
35 oneOf:
36 - $ref: "#/$defs/qcom-sm4250-lpass-state"
37 - patternProperties:
38 "-pins$":
39 $ref: "#/$defs/qcom-sm4250-lpass-state"
40 additionalProperties: false
41
42 $defs:
43 qcom-sm4250-lpass-state:
44 type: object
45 description:
46 Pinctrl node's client devices use subnodes for desired pin configuration.
47 Client device subnodes use below standard properties.
48 $ref: qcom,lpass-lpi-common.yaml#/$defs/qcom-tlmm-state
49 unevaluatedProperties: false
50
51 properties:
52 pins:
53 description:
54 List of gpio pins affected by the properties specified in this
55 subnode.
56 items:
57 pattern: "^gpio([0-9]|1[0-9]|2[0-6])$"
58
59 function:
60 enum: [ gpio, dmic01_clk, dmic01_data, dmic23_clk, dmic23_data,
61 dmic4_clk, dmic4_data, ext_mclk0_a, ext_mclk0_b, ext_mclk1_a,
62 ext_mclk1_b, ext_mclk1_c, i2s1_clk, i2s1_data, i2s1_ws,
63 i2s2_clk, i2s2_data, i2s2_ws, i2s3_clk, i2s3_data, i2s3_ws,
64 qua_mi2s_data, qua_mi2s_sclk, qua_mi2s_ws, slim_clk, slim_data,
65 swr_rx_clk, swr_rx_data, swr_tx_clk, swr_tx_data, swr_wsa_clk,
66 swr_wsa_data ]
67 description:
68 Specify the alternative function to be configured for the specified
69 pins.
70
71 allOf:
72 - $ref: qcom,lpass-lpi-common.yaml#
73
74 required:
75 - compatible
76 - reg
77 - clocks
78 - clock-names
79
80 unevaluatedProperties: false
81
82 examples:
83 - |
84 #include <dt-bindings/sound/qcom,q6afe.h>
85 lpi_tlmm: pinctrl@a7c0000 {
86 compatible = "qcom,sm4250-lpass-lpi-pinctrl";
87 reg = <0xa7c0000 0x20000>,
88 <0xa950000 0x10000>;
89 clocks = <&q6afecc LPASS_HW_DCODEC_VOTE LPASS_CLK_ATTRIBUTE_COUPLE_NO>;
90 clock-names = "audio";
91 gpio-controller;
92 #gpio-cells = <2>;
93 gpio-ranges = <&lpi_tlmm 0 0 19>;
94
95 i2s2-active-state {
96 clk-pins {
97 pins = "gpio10";
98 function = "i2s2_clk";
99 drive-strength = <2>;
100 slew-rate = <1>;
101 bias-disable;
102 };
103
104 data-pins {
105 pins = "gpio12";
106 function = "i2s2_data";
107 drive-strength = <2>;
108 slew-rate = <1>;
109 };
110 };
111
112 i2s2-sleep-clk-state {
113 pins = "gpio10";
114 function = "i2s2_clk";
115 drive-strength = <2>;
116 bias-pull-down;
117 };
118 };
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