dt-bindings: thermal: tsens: support per-sensor calibration cells

Allow specifying the exact calibration mode and calibration data as nvmem
cells, rather than specifying just a single calibration data blob.

Note, unlike the vendor kernel the calibration data uses hw_ids rather
than software sensor indices (to match actual tsens usage in
thermal zones).

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230101194034.831222-3-dmitry.baryshkov@linaro.org
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>

1 files changed, 84 insertions, 10 deletions

diff --git a/Documentation/devicetree/bindings/thermal/qcom-tsens.yaml b/Documentation/devicetree/bindings/thermal/qcom-tsens.yaml
index f3660af0b3bf..878e1d1bf6c5 100644
--- a/Documentation/devicetree/bindings/thermal/qcom-tsens.yaml
+++ b/Documentation/devicetree/bindings/thermal/qcom-tsens.yaml
@@ -81,18 +81,62 @@ properties:
     maxItems: 2
 
   nvmem-cells:
-    minItems: 1
-    maxItems: 2
-    description:
-      Reference to an nvmem node for the calibration data
+    oneOf:
+      - minItems: 1
+        maxItems: 2
+        description:
+          Reference to an nvmem node for the calibration data
+      - minItems: 5
+        maxItems: 35
+        description: |
+          Reference to nvmem cells for the calibration mode, two calibration
+          bases and two cells per each sensor
 
   nvmem-cell-names:
-    minItems: 1
-    items:
-      - const: calib
-      - enum:
-          - calib_backup
-          - calib_sel
+    oneOf:
+      - minItems: 1
+        items:
+          - const: calib
+          - enum:
+              - calib_backup
+              - calib_sel
+      - minItems: 5
+        items:
+          - const: mode
+          - const: base1
+          - const: base2
+          - pattern: '^s[0-9]+_p1$'
+          - pattern: '^s[0-9]+_p2$'
+          - pattern: '^s[0-9]+_p1$'
+          - pattern: '^s[0-9]+_p2$'
+          - pattern: '^s[0-9]+_p1$'
+          - pattern: '^s[0-9]+_p2$'
+          - pattern: '^s[0-9]+_p1$'
+          - pattern: '^s[0-9]+_p2$'
+          - pattern: '^s[0-9]+_p1$'
+          - pattern: '^s[0-9]+_p2$'
+          - pattern: '^s[0-9]+_p1$'
+          - pattern: '^s[0-9]+_p2$'
+          - pattern: '^s[0-9]+_p1$'
+          - pattern: '^s[0-9]+_p2$'
+          - pattern: '^s[0-9]+_p1$'
+          - pattern: '^s[0-9]+_p2$'
+          - pattern: '^s[0-9]+_p1$'
+          - pattern: '^s[0-9]+_p2$'
+          - pattern: '^s[0-9]+_p1$'
+          - pattern: '^s[0-9]+_p2$'
+          - pattern: '^s[0-9]+_p1$'
+          - pattern: '^s[0-9]+_p2$'
+          - pattern: '^s[0-9]+_p1$'
+          - pattern: '^s[0-9]+_p2$'
+          - pattern: '^s[0-9]+_p1$'
+          - pattern: '^s[0-9]+_p2$'
+          - pattern: '^s[0-9]+_p1$'
+          - pattern: '^s[0-9]+_p2$'
+          - pattern: '^s[0-9]+_p1$'
+          - pattern: '^s[0-9]+_p2$'
+          - pattern: '^s[0-9]+_p1$'
+          - pattern: '^s[0-9]+_p2$'
 
   "#qcom,sensors":
     description:
@@ -223,6 +267,36 @@ examples:
 
   - |
     #include <dt-bindings/interrupt-controller/arm-gic.h>
+    // Example 1 (new calbiration data: for pre v1 IP):
+    thermal-sensor@900000 {
+        compatible = "qcom,msm8916-tsens", "qcom,tsens-v0_1";
+        reg = <0x4a9000 0x1000>, /* TM */
+              <0x4a8000 0x1000>; /* SROT */
+
+        nvmem-cells = <&tsens_mode>,
+                      <&tsens_base1>, <&tsens_base2>,
+                      <&tsens_s0_p1>, <&tsens_s0_p2>,
+                      <&tsens_s1_p1>, <&tsens_s1_p2>,
+                      <&tsens_s2_p1>, <&tsens_s2_p2>,
+                      <&tsens_s4_p1>, <&tsens_s4_p2>,
+                      <&tsens_s5_p1>, <&tsens_s5_p2>;
+        nvmem-cell-names = "mode",
+                           "base1", "base2",
+                           "s0_p1", "s0_p2",
+                           "s1_p1", "s1_p2",
+                           "s2_p1", "s2_p2",
+                           "s4_p1", "s4_p2",
+                           "s5_p1", "s5_p2";
+
+        interrupts = <GIC_SPI 184 IRQ_TYPE_LEVEL_HIGH>;
+        interrupt-names = "uplow";
+
+        #qcom,sensors = <5>;
+        #thermal-sensor-cells = <1>;
+    };
+
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
     // Example 1 (legacy: for pre v1 IP):
     tsens1: thermal-sensor@900000 {
            compatible = "qcom,msm8916-tsens", "qcom,tsens-v0_1";