[PATCH v2 1/2] dt-bindings: iio: adc: Require generic adc-chan name for channel nodes

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As discussed in [1] it is more convenient to use a generic adc-chan 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].

Replace the .* name pattern with the adc-chan 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@xxxxxxxxxxxxxx/T/#u
[2]: https://lore.kernel.org/linux-arm-msm/20230116220909.196926-4-marijn.suijten@xxxxxxxxxxxxxx/

Signed-off-by: Marijn Suijten <marijn.suijten@xxxxxxxxxxxxxx>
---
 .../bindings/iio/adc/qcom,spmi-vadc.yaml         | 16 +++++++++-------
 1 file changed, 9 insertions(+), 7 deletions(-)

diff --git a/Documentation/devicetree/bindings/iio/adc/qcom,spmi-vadc.yaml b/Documentation/devicetree/bindings/iio/adc/qcom,spmi-vadc.yaml
index bd6e0d6f6e0c..9b1a60fe7599 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]+$":
+  "^adc-chan@[0-9a-f]+$":
     type: object
     additionalProperties: false
     description: |
@@ -148,7 +148,7 @@ allOf:
 
     then:
       patternProperties:
-        "^.*@[0-9a-f]+$":
+        "^adc-chan@[0-9a-f]+$":
           properties:
             qcom,decimation:
               enum: [ 512, 1024, 2048, 4096 ]
@@ -171,7 +171,7 @@ allOf:
 
     then:
       patternProperties:
-        "^.*@[0-9a-f]+$":
+        "^adc-chan@[0-9a-f]+$":
           properties:
             qcom,decimation:
               enum: [ 256, 512, 1024 ]
@@ -194,7 +194,7 @@ allOf:
 
     then:
       patternProperties:
-        "^.*@[0-9a-f]+$":
+        "^adc-chan@[0-9a-f]+$":
           properties:
             qcom,decimation:
               enum: [ 250, 420, 840 ]
@@ -217,7 +217,7 @@ allOf:
 
     then:
       patternProperties:
-        "^.*@[0-9a-f]+$":
+        "^adc-chan@[0-9a-f]+$":
           properties:
             qcom,decimation:
               enum: [ 85, 340, 1360 ]
@@ -292,16 +292,18 @@ examples:
             #io-channel-cells = <1>;
 
             /* Other properties are omitted */
-            xo-therm@44 {
+            adc-chan@44 {
                 reg = <PMK8350_ADC7_AMUX_THM1_100K_PU>;
                 qcom,ratiometric;
                 qcom,hw-settle-time = <200>;
+                label = "xo_therm";
             };
 
-            conn-therm@47 {
+            adc-chan@47 {
                 reg = <PM8350_ADC7_AMUX_THM4_100K_PU(1)>;
                 qcom,ratiometric;
                 qcom,hw-settle-time = <200>;
+                label = "conn_therm";
             };
         };
     };
-- 
2.39.1




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