1# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/pinctrl/qcom,pmic-gpio.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Qualcomm PMIC GPIO block
8
9maintainers:
10  - Bjorn Andersson <bjorn.andersson@linaro.org>
11
12description:
13  This binding describes the GPIO block(s) found in the 8xxx series of
14  PMIC's from Qualcomm.
15
16properties:
17  compatible:
18    items:
19      - enum:
20          - qcom,pm660-gpio
21          - qcom,pm660l-gpio
22          - qcom,pm6150-gpio
23          - qcom,pm6150l-gpio
24          - qcom,pm7325-gpio
25          - qcom,pm8005-gpio
26          - qcom,pm8008-gpio
27          - qcom,pm8018-gpio
28          - qcom,pm8038-gpio
29          - qcom,pm8058-gpio
30          - qcom,pm8150-gpio
31          - qcom,pm8150b-gpio
32          - qcom,pm8350-gpio
33          - qcom,pm8350b-gpio
34          - qcom,pm8350c-gpio
35          - qcom,pm8916-gpio
36          - qcom,pm8917-gpio
37          - qcom,pm8921-gpio
38          - qcom,pm8941-gpio
39          - qcom,pm8950-gpio
40          - qcom,pm8994-gpio
41          - qcom,pm8998-gpio
42          - qcom,pma8084-gpio
43          - qcom,pmi8950-gpio
44          - qcom,pmi8994-gpio
45          - qcom,pmi8998-gpio
46          - qcom,pmk8350-gpio
47          - qcom,pmr735a-gpio
48          - qcom,pmr735b-gpio
49          - qcom,pms405-gpio
50          - qcom,pmx55-gpio
51
52      - enum:
53          - qcom,spmi-gpio
54          - qcom,ssbi-gpio
55
56  reg:
57    maxItems: 1
58
59  interrupt-controller: true
60
61  '#interrupt-cells':
62    const: 2
63
64  gpio-controller: true
65
66  gpio-ranges:
67    maxItems: 1
68
69  '#gpio-cells':
70    const: 2
71    description:
72      The first cell will be used to define gpio number and the
73      second denotes the flags for this gpio
74
75additionalProperties: false
76
77required:
78  - compatible
79  - reg
80  - gpio-controller
81  - '#gpio-cells'
82  - gpio-ranges
83  - interrupt-controller
84
85patternProperties:
86  '-state$':
87    oneOf:
88      - $ref: "#/$defs/qcom-pmic-gpio-state"
89      - patternProperties:
90          ".*":
91            $ref: "#/$defs/qcom-pmic-gpio-state"
92
93$defs:
94  qcom-pmic-gpio-state:
95    type: object
96    allOf:
97      - $ref: "pinmux-node.yaml"
98      - $ref: "pincfg-node.yaml"
99    properties:
100      pins:
101        description:
102          List of gpio pins affected by the properties specified in
103          this subnode.  Valid pins are
104                 - gpio1-gpio10 for pm6150
105                 - gpio1-gpio12 for pm6150l
106                 - gpio1-gpio10 for pm7325
107                 - gpio1-gpio4 for pm8005
108                 - gpio1-gpio2 for pm8008
109                 - gpio1-gpio6 for pm8018
110                 - gpio1-gpio12 for pm8038
111                 - gpio1-gpio40 for pm8058
112                 - gpio1-gpio10 for pm8150 (holes on gpio2, gpio5,
113                                            gpio7 and gpio8)
114                 - gpio1-gpio12 for pm8150b (holes on gpio3, gpio4
115                                             and gpio7)
116                 - gpio1-gpio12 for pm8150l (hole on gpio7)
117                 - gpio1-gpio4 for pm8916
118                 - gpio1-gpio10 for pm8350
119                 - gpio1-gpio8 for pm8350b
120                 - gpio1-gpio9 for pm8350c
121                 - gpio1-gpio38 for pm8917
122                 - gpio1-gpio44 for pm8921
123                 - gpio1-gpio36 for pm8941
124                 - gpio1-gpio8 for pm8950 (hole on gpio3)
125                 - gpio1-gpio22 for pm8994
126                 - gpio1-gpio26 for pm8998
127                 - gpio1-gpio22 for pma8084
128                 - gpio1-gpio2 for pmi8950
129                 - gpio1-gpio10 for pmi8994
130                 - gpio1-gpio4 for pmk8350
131                 - gpio1-gpio4 for pmr735a
132                 - gpio1-gpio4 for pmr735b
133                 - gpio1-gpio12 for pms405 (holes on gpio1, gpio9
134                                            and gpio10)
135                 - gpio1-gpio11 for pmx55 (holes on gpio3, gpio7, gpio10
136                                            and gpio11)
137
138        items:
139          pattern: "^gpio([0-9]+)$"
140
141      function:
142        items:
143          - enum:
144              - normal
145              - paired
146              - func1
147              - func2
148              - dtest1
149              - dtest2
150              - dtest3
151              - dtest4
152              - func3  # supported by LV/MV GPIO subtypes
153              - func4  # supported by LV/MV GPIO subtypes
154
155      bias-disable: true
156      bias-pull-down: true
157      bias-pull-up: true
158
159      qcom,pull-up-strength:
160        $ref: /schemas/types.yaml#/definitions/uint32
161        description:
162          Specifies the strength to use for pull up, if selected.
163          Valid values are defined in
164          <dt-bindings/pinctrl/qcom,pmic-gpio.h>
165          If this property is omitted 30uA strength will be used
166          if pull up is selected
167        enum: [0, 1, 2, 3]
168
169      bias-high-impedance: true
170      input-enable: true
171      output-high: true
172      output-low: true
173      power-source: true
174
175      qcom,drive-strength:
176        $ref: /schemas/types.yaml#/definitions/uint32
177        description:
178          Selects the drive strength for the specified pins
179          Valid drive strength values are defined in
180          <dt-bindings/pinctrl/qcom,pmic-gpio.h>
181        enum: [0, 1, 2, 3]
182
183      drive-push-pull: true
184      drive-open-drain: true
185      drive-open-source: true
186
187      qcom,analog-pass:
188        $ref: /schemas/types.yaml#/definitions/flag
189        description:
190          The specified pins are configured in
191          analog-pass-through mode.
192
193      qcom,atest:
194        $ref: /schemas/types.yaml#/definitions/uint32
195        description:
196          Selects ATEST rail to route to GPIO when it's
197          configured in analog-pass-through mode.
198        enum: [1, 2, 3, 4]
199
200      qcom,dtest-buffer:
201        $ref: /schemas/types.yaml#/definitions/uint32
202        description:
203          Selects DTEST rail to route to GPIO when it's
204          configured as digital input.
205        enum: [1, 2, 3, 4]
206
207    required:
208      - pins
209      - function
210
211    additionalProperties: false
212
213examples:
214  - |
215    #include <dt-bindings/pinctrl/qcom,pmic-gpio.h>
216
217    pm8921_gpio: gpio@150 {
218      compatible = "qcom,pm8921-gpio", "qcom,ssbi-gpio";
219      reg = <0x150 0x160>;
220      interrupt-controller;
221      #interrupt-cells = <2>;
222      gpio-controller;
223      gpio-ranges = <&pm8921_gpio 0 0 44>;
224      #gpio-cells = <2>;
225
226      pm8921_gpio_keys: gpio-keys-state {
227        volume-keys {
228          pins = "gpio20", "gpio21";
229          function = "normal";
230
231          input-enable;
232          bias-pull-up;
233          drive-push-pull;
234          qcom,drive-strength = <PMIC_GPIO_STRENGTH_NO>;
235          power-source = <PM8921_GPIO_S4>;
236        };
237      };
238    };
239...
240