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authorMarijn Suijten <marijn.suijten@somainline.org>2023-04-10 22:29:17 +0200
committerJonathan Cameron <Jonathan.Cameron@huawei.com>2023-05-13 17:56:06 +0100
commite0b7972461b082be7168deb217ab7daaa8d425f0 (patch)
tree5679041f7a9d8cb204a7fcf63425324a6742ef67 /Documentation/devicetree/bindings/iio/adc
parent26e46ef7758922e983a9a2f688369f649cc1a635 (diff)
dt-bindings: iio: adc: Require generic `channel` name for channel nodes
As discussed in [1] it is more convenient to use a generic `channel` node name for ADC channels while storing a friendly - board-specific instead of PMIC-specific - name in the label, if/when desired to overwrite the channel description already contained (but previously unused) in the driver [2]. The same `channel` node name pattern has also been set in iio/adc/adc.yaml, but this generic binding is not inherited as base for qcom,spmi-vadc bindings due to not having any other generic elements in common, besides the node name rule and reg property. Replace the .* name pattern with the `channel` literal, but leave the label property optional for bindings to choose to fall back a channel label hardcoded in the driver [2] instead. [1]: https://lore.kernel.org/linux-arm-msm/20221106193018.270106-1-marijn.suijten@somainline.org/T/#u [2]: https://lore.kernel.org/linux-arm-msm/20230116220909.196926-4-marijn.suijten@somainline.org/ Signed-off-by: Marijn Suijten <marijn.suijten@somainline.org> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/r/20230410202917.247666-6-marijn.suijten@somainline.org Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Diffstat (limited to 'Documentation/devicetree/bindings/iio/adc')
-rw-r--r--Documentation/devicetree/bindings/iio/adc/qcom,spmi-vadc.yaml26
1 files changed, 14 insertions, 12 deletions
diff --git a/Documentation/devicetree/bindings/iio/adc/qcom,spmi-vadc.yaml b/Documentation/devicetree/bindings/iio/adc/qcom,spmi-vadc.yaml
index 365aa3528a87..ad7d6fc49de5 100644
--- a/Documentation/devicetree/bindings/iio/adc/qcom,spmi-vadc.yaml
+++ b/Documentation/devicetree/bindings/iio/adc/qcom,spmi-vadc.yaml
@@ -54,7 +54,7 @@ required:
- '#io-channel-cells'
patternProperties:
- "^.*@[0-9a-f]+$":
+ "^channel@[0-9a-f]+$":
type: object
additionalProperties: false
description: |
@@ -148,7 +148,7 @@ allOf:
then:
patternProperties:
- "^.*@[0-9a-f]+$":
+ "^channel@[0-9a-f]+$":
properties:
qcom,decimation:
enum: [ 512, 1024, 2048, 4096 ]
@@ -171,7 +171,7 @@ allOf:
then:
patternProperties:
- "^.*@[0-9a-f]+$":
+ "^channel@[0-9a-f]+$":
properties:
qcom,decimation:
enum: [ 256, 512, 1024 ]
@@ -194,7 +194,7 @@ allOf:
then:
patternProperties:
- "^.*@[0-9a-f]+$":
+ "^channel@[0-9a-f]+$":
properties:
qcom,decimation:
enum: [ 250, 420, 840 ]
@@ -217,7 +217,7 @@ allOf:
then:
patternProperties:
- "^.*@[0-9a-f]+$":
+ "^channel@[0-9a-f]+$":
properties:
qcom,decimation:
enum: [ 85, 340, 1360 ]
@@ -249,7 +249,7 @@ examples:
#io-channel-cells = <1>;
/* Channel node */
- adc-chan@39 {
+ channel@39 {
reg = <0x39>;
qcom,decimation = <512>;
qcom,ratiometric;
@@ -258,19 +258,19 @@ examples:
qcom,pre-scaling = <1 3>;
};
- adc-chan@9 {
+ channel@9 {
reg = <0x9>;
};
- adc-chan@a {
+ channel@a {
reg = <0xa>;
};
- adc-chan@e {
+ channel@e {
reg = <0xe>;
};
- adc-chan@f {
+ channel@f {
reg = <0xf>;
};
};
@@ -292,16 +292,18 @@ examples:
#io-channel-cells = <1>;
/* Other properties are omitted */
- xo-therm@44 {
+ channel@44 {
reg = <PMK8350_ADC7_AMUX_THM1_100K_PU>;
qcom,ratiometric;
qcom,hw-settle-time = <200>;
+ label = "xo_therm";
};
- conn-therm@47 {
+ channel@47 {
reg = <PM8350_ADC7_AMUX_THM4_100K_PU(1)>;
qcom,ratiometric;
qcom,hw-settle-time = <200>;
+ label = "conn_therm";
};
};
};