Thread (23 messages) 23 messages, 7 authors, 2021-12-09
STALE1641d
Revisions (3)
  1. v1 [diff vs current]
  2. v2 [diff vs current]
  3. v3 current

[PATCH v3 02/11] dt-bindings: i2c: apple,i2c: Add power-domains property

From: Hector Martin <hidden>
Date: 2021-11-24 07:34:51
Also in: linux-arm-kernel, linux-pm, linux-samsung-soc, linux-serial, lkml
Subsystem: arm/apple machine support, i2c subsystem host drivers, open firmware and flattened device tree bindings, the rest · Maintainers: Sven Peter, Janne Grunau, Andi Shyti, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds

This will bind to the PMGR pwrstate nodes that control power/clock
gating to SoC blocks. The i2c driver doesn't do runtime-pm yet, so
initially this will just keep the domain on permanently.

Signed-off-by: Hector Martin <redacted>
---
 Documentation/devicetree/bindings/i2c/apple,i2c.yaml | 3 +++
 1 file changed, 3 insertions(+)
diff --git a/Documentation/devicetree/bindings/i2c/apple,i2c.yaml b/Documentation/devicetree/bindings/i2c/apple,i2c.yaml
index 22fc8483256f..be2bfbddfa36 100644
--- a/Documentation/devicetree/bindings/i2c/apple,i2c.yaml
+++ b/Documentation/devicetree/bindings/i2c/apple,i2c.yaml
@@ -40,6 +40,9 @@ properties:
       used. This frequency is generated by dividing the reference clock.
       Allowed values are between ref_clk/(16*4) and ref_clk/(16*255).
 
+  power-domains:
+    maxItems: 1
+
 required:
   - compatible
   - reg
-- 
2.33.0
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