linux-kernel - [PATCH v2 1/2] dt-bindings: pinctrl: samsung: google,gs101-pinctrl needs a clock

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Message-Id: <20240426-samsung-pinctrl-busclock-v2-1-8dfecaabf020@linaro.org>
Date: Fri, 26 Apr 2024 14:10:46 +0100
From: André Draszik <andre.draszik@...aro.org>
To: Krzysztof Kozlowski <krzk@...nel.org>, 
 Sylwester Nawrocki <s.nawrocki@...sung.com>, 
 Alim Akhtar <alim.akhtar@...sung.com>, 
 Linus Walleij <linus.walleij@...aro.org>, Rob Herring <robh@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Tomasz Figa <tomasz.figa@...il.com>, 
 Peter Griffin <peter.griffin@...aro.org>
Cc: Tudor Ambarus <tudor.ambarus@...aro.org>, 
 Will McVicker <willmcvicker@...gle.com>, 
 Sam Protsenko <semen.protsenko@...aro.org>, kernel-team@...roid.com, 
 linux-arm-kernel@...ts.infradead.org, linux-samsung-soc@...r.kernel.org, 
 linux-gpio@...r.kernel.org, devicetree@...r.kernel.org, 
 linux-kernel@...r.kernel.org, 
 André Draszik <andre.draszik@...aro.org>
Subject: [PATCH v2 1/2] dt-bindings: pinctrl: samsung: google,gs101-pinctrl
 needs a clock

The pin controller on Google Tensor gs101 requires a bus clock for
register access to work. Add it.

Signed-off-by: André Draszik <andre.draszik@...aro.org>

---
As we only have the one clock here, please let me know if the
clock-names should be removed. Having it does make
/sys/kernel/debug/clk/clk_summary look nicer / more meaningful though
:-)
---
 .../devicetree/bindings/pinctrl/samsung,pinctrl.yaml    | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/Documentation/devicetree/bindings/pinctrl/samsung,pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/samsung,pinctrl.yaml
index 118549c25976..49cc36b76fd0 100644
--- a/Documentation/devicetree/bindings/pinctrl/samsung,pinctrl.yaml
+++ b/Documentation/devicetree/bindings/pinctrl/samsung,pinctrl.yaml
@@ -73,6 +73,13 @@ properties:
     minItems: 1
     maxItems: 2
 
+  clocks:
+    maxItems: 1
+
+  clock-names:
+    items:
+      - const: pclk
+
   wakeup-interrupt-controller:
     $ref: samsung,pinctrl-wakeup-interrupt.yaml
 
@@ -120,6 +127,16 @@ required:
 
 allOf:
   - $ref: pinctrl.yaml#
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: google,gs101-pinctrl
+    then:
+      required:
+        - clocks
+        - clock-names
+
   - if:
       properties:
         compatible:

-- 
2.44.0.769.g3c40516874-goog