[PATCH] arm64: zynqmp: Fix pwm-fan polarity
Michal Simek
michal.simek at amd.com
Mon Jul 29 10:18:18 CEST 2024
From: Vishal Patel <vishal.patel at amd.com>
The correct operating mode for the fan is inversed (1). The
previous pwm driver implementation had a bug and the polarity
information was propagated incorrectly to the kernel. The normal (0)
polarity specified in the device tree was incorrectly clearing the
polarity bit in the counter control register. After the bug fix,
setting the polarity to inversed (1) in the device tree will clear
the polarity bit.
Signed-off-by: Vishal Patel <vishal.patel at amd.com>
Signed-off-by: Michal Simek <michal.simek at amd.com>
---
arch/arm/dts/zynqmp-sm-k26-revA.dts | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm/dts/zynqmp-sm-k26-revA.dts b/arch/arm/dts/zynqmp-sm-k26-revA.dts
index 5859e6cd8c23..d95a05e21592 100644
--- a/arch/arm/dts/zynqmp-sm-k26-revA.dts
+++ b/arch/arm/dts/zynqmp-sm-k26-revA.dts
@@ -107,7 +107,7 @@
pwm-fan {
compatible = "pwm-fan";
status = "okay";
- pwms = <&ttc0 2 40000 0>;
+ pwms = <&ttc0 2 40000 1>;
};
};
--
2.43.0
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