From 562da8b494c4e2f72d0789a03e6ccd9dc14d3f25 Mon Sep 17 00:00:00 2001 From: Thierry Reding Date: Thu, 6 Aug 2020 17:42:45 +0200 Subject: [PATCH] arm64: tegra: Use valid PWM period for VDD_GPU on Tegra210 The PWM on Tegra210 can run at a maximum frequency of 48 MHz and cannot reach the minimum period is 5334 ns. The currently configured period of 4880 ns is not within the valid range, so set it to 8000 ns. This value was taken from the downstream DTS files and seems to work fine. Signed-off-by: Thierry Reding --- arch/arm64/boot/dts/nvidia/tegra210-p2180.dtsi | 2 +- arch/arm64/boot/dts/nvidia/tegra210-p3450-0000.dts | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/arm64/boot/dts/nvidia/tegra210-p2180.dtsi b/arch/arm64/boot/dts/nvidia/tegra210-p2180.dtsi index 6a4b50aaa25d4..85ee7e6b71ac6 100644 --- a/arch/arm64/boot/dts/nvidia/tegra210-p2180.dtsi +++ b/arch/arm64/boot/dts/nvidia/tegra210-p2180.dtsi @@ -337,7 +337,7 @@ vdd_gpu: regulator@100 { compatible = "pwm-regulator"; - pwms = <&pwm 1 4880>; + pwms = <&pwm 1 8000>; regulator-name = "VDD_GPU"; regulator-min-microvolt = <710000>; regulator-max-microvolt = <1320000>; diff --git a/arch/arm64/boot/dts/nvidia/tegra210-p3450-0000.dts b/arch/arm64/boot/dts/nvidia/tegra210-p3450-0000.dts index 553a5585edaca..c55716c336c10 100644 --- a/arch/arm64/boot/dts/nvidia/tegra210-p3450-0000.dts +++ b/arch/arm64/boot/dts/nvidia/tegra210-p3450-0000.dts @@ -821,7 +821,7 @@ vdd_gpu: regulator@6 { compatible = "pwm-regulator"; - pwms = <&pwm 1 4880>; + pwms = <&pwm 1 8000>; regulator-name = "VDD_GPU"; regulator-min-microvolt = <710000>; -- 2.30.2