Messages in this thread Patch in this message | | | From | Alexandre Courbot <> | Subject | [PATCH v2 2/2] arm64: tegra: Add VDD_GPU regulator to Jetson TX1 | Date | Thu, 23 Jun 2016 16:39:45 +0900 |
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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 <acourbot@nvidia.com> --- 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
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