[PATCH v2 2/2] arm64: tegra: Add VDD_GPU regulator to Jetson TX1
From: Alexandre Courbot <hidden>
Date: 2016-06-23 07:40:28
Also in:
linux-tegra, lkml
Subsystem:
the rest · Maintainer:
Linus Torvalds
Add the VDD_GPU regulator (a GPIO-enabled PWM regulator) to the Jetson TX1 board. This addition allows the GPU to be used provided the bootloader properly enabled the GPU node. Signed-off-by: Alexandre Courbot <redacted> --- Changes since v1: - Include this patch into the series to make sure it is merged after 1/2, otherwise Jetson TX1 will lock when trying to enable the regulator. arch/arm64/boot/dts/nvidia/tegra210-p2371-2180.dts | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+)
diff --git a/arch/arm64/boot/dts/nvidia/tegra210-p2371-2180.dts b/arch/arm64/boot/dts/nvidia/tegra210-p2371-2180.dts
index 983775e637a4..cc9fb5207f9d 100644
--- a/arch/arm64/boot/dts/nvidia/tegra210-p2371-2180.dts
+++ b/arch/arm64/boot/dts/nvidia/tegra210-p2371-2180.dts@@ -25,6 +25,10 @@ }; }; + gpu@57000000 { + vdd-supply = <&vdd_gpu>; + }; + i2c@7000c400 { backlight: backlight@2c { compatible = "ti,lp8557";
@@ -51,4 +55,18 @@ }; }; }; + + regulators { + vdd_gpu: regulator@100 { + compatible = "pwm-regulator"; + reg = <100>; + pwms = <&pwm 1 4880>; + regulator-name = "VDD_GPU"; + regulator-min-microvolt = <710000>; + regulator-max-microvolt = <1320000>; + enable-gpios = <&pmic 6 GPIO_ACTIVE_HIGH>; + regulator-ramp-delay = <80>; + regulator-enable-ramp-delay = <1000>; + }; + }; };
--
2.8.3