1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
|
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/pinctrl/qcom,sm8550-lpass-lpi-pinctrl.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Qualcomm SM8550 SoC LPASS LPI TLMM
maintainers:
- Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
- Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
description:
Top Level Mode Multiplexer pin controller in the Low Power Audio SubSystem
(LPASS) Low Power Island (LPI) of Qualcomm SM8550 SoC.
properties:
compatible:
const: qcom,sm8550-lpass-lpi-pinctrl
reg:
items:
- description: LPASS LPI TLMM Control and Status registers
- description: LPASS LPI MCC registers
clocks:
items:
- description: LPASS Core voting clock
- description: LPASS Audio voting clock
clock-names:
items:
- const: core
- const: audio
gpio-controller: true
"#gpio-cells":
description: Specifying the pin number and flags, as defined in
include/dt-bindings/gpio/gpio.h
const: 2
gpio-ranges:
maxItems: 1
patternProperties:
"-state$":
oneOf:
- $ref: "#/$defs/qcom-sm8550-lpass-state"
- patternProperties:
"-pins$":
$ref: "#/$defs/qcom-sm8550-lpass-state"
additionalProperties: false
$defs:
qcom-sm8550-lpass-state:
type: object
description:
Pinctrl node's client devices use subnodes for desired pin configuration.
Client device subnodes use below standard properties.
$ref: /schemas/pinctrl/pincfg-node.yaml
properties:
pins:
description:
List of gpio pins affected by the properties specified in this
subnode.
items:
pattern: "^gpio([0-9]|1[0-9]|2[0-2])$"
function:
enum: [ dmic1_clk, dmic1_data, dmic2_clk, dmic2_data, dmic3_clk,
dmic3_data, dmic4_clk, dmic4_data, ext_mclk1_a, ext_mclk1_b,
ext_mclk1_c, ext_mclk1_d, ext_mclk1_e, gpio, i2s0_clk,
i2s0_data, i2s0_ws, i2s1_clk, i2s1_data, i2s1_ws, i2s2_clk,
i2s2_data, i2s2_ws, i2s3_clk, i2s3_data, i2s3_ws, i2s4_clk,
i2s4_data, i2s4_ws, slimbus_clk, slimbus_data, swr_rx_clk,
swr_rx_data, swr_tx_clk, swr_tx_data, wsa_swr_clk,
wsa_swr_data, wsa2_swr_clk, wsa2_swr_data ]
description:
Specify the alternative function to be configured for the specified
pins.
drive-strength:
enum: [2, 4, 6, 8, 10, 12, 14, 16]
default: 2
description:
Selects the drive strength for the specified pins, in mA.
slew-rate:
enum: [0, 1, 2, 3]
default: 0
description: |
0: No adjustments
1: Higher Slew rate (faster edges)
2: Lower Slew rate (slower edges)
3: Reserved (No adjustments)
bias-bus-hold: true
bias-pull-down: true
bias-pull-up: true
bias-disable: true
input-enable: true
output-high: true
output-low: true
required:
- pins
- function
additionalProperties: false
allOf:
- $ref: pinctrl.yaml#
required:
- compatible
- reg
- clocks
- clock-names
- gpio-controller
- "#gpio-cells"
- gpio-ranges
additionalProperties: false
examples:
- |
#include <dt-bindings/sound/qcom,q6dsp-lpass-ports.h>
lpass_tlmm: pinctrl@6e80000 {
compatible = "qcom,sm8550-lpass-lpi-pinctrl";
reg = <0x06e80000 0x20000>,
<0x0725a000 0x10000>;
clocks = <&q6prmcc LPASS_HW_MACRO_VOTE LPASS_CLK_ATTRIBUTE_COUPLE_NO>,
<&q6prmcc LPASS_HW_DCODEC_VOTE LPASS_CLK_ATTRIBUTE_COUPLE_NO>;
clock-names = "core", "audio";
gpio-controller;
#gpio-cells = <2>;
gpio-ranges = <&lpass_tlmm 0 0 23>;
tx-swr-sleep-clk-state {
pins = "gpio0";
function = "swr_tx_clk";
drive-strength = <2>;
bias-pull-down;
};
};
|
