From: Conor Dooley <conor.dooley@microchip.com>
Date: Fri, 7 Oct 2022 11:35:10 +0000 (+0100)
Subject: dt-bindings: pwm: fix microchip corePWM's pwm-cells
X-Git-Tag: v6.1.8~1917
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=48ad27467b00819c0885ccada3f24a36501a6dab;p=platform%2Fkernel%2Flinux-starfive.git

dt-bindings: pwm: fix microchip corePWM's pwm-cells

[ Upstream commit a62d196e89887c029d5aef409135f9a2a8667268 ]

corePWM is capable of inverted operation but the binding requires
\#pwm-cells of 2. Expand the binding to support setting the polarity.

Fixes: df77f7735786 ("dt-bindings: pwm: add microchip corepwm binding")
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---

diff --git a/Documentation/devicetree/bindings/pwm/microchip,corepwm.yaml b/Documentation/devicetree/bindings/pwm/microchip,corepwm.yaml
index a7fae17..cd8e9a8 100644
--- a/Documentation/devicetree/bindings/pwm/microchip,corepwm.yaml
+++ b/Documentation/devicetree/bindings/pwm/microchip,corepwm.yaml
@@ -30,7 +30,9 @@ properties:
     maxItems: 1
 
   "#pwm-cells":
-    const: 2
+    enum: [2, 3]
+    description:
+      The only flag supported by the controller is PWM_POLARITY_INVERTED.
 
   microchip,sync-update-mask:
     description: |