This is a note to let you know that I've just added the patch titled arm64: tegra: Add VDD_GPU regulator to Jetson TX1 to the 4.9-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: arm64-tegra-add-vdd_gpu-regulator-to-jetson-tx1.patch and it can be found in the queue-4.9 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From 5e6b9a89afceadb1ee45472098f7d20af260335c Mon Sep 17 00:00:00 2001 From: Alexandre Courbot <acourbot@xxxxxxxxxx> Date: Fri, 2 Dec 2016 20:57:55 +0100 Subject: arm64: tegra: Add VDD_GPU regulator to Jetson TX1 From: Alexandre Courbot <acourbot@xxxxxxxxxx> commit 5e6b9a89afceadb1ee45472098f7d20af260335c upstream. 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@xxxxxxxxxx> Signed-off-by: Thierry Reding <treding@xxxxxxxxxx> [as pointed out by Thierry on IRC, nobody has reported a bug in the field, but using a new bootloader with a .dtb that has the incorrect data, it will crash on boot] Fixes: 336f79c7b6d7 ("arm64: tegra: Add NVIDIA Jetson TX1 Developer Kit support") Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- arch/arm64/boot/dts/nvidia/tegra210-p2180.dtsi | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) --- a/arch/arm64/boot/dts/nvidia/tegra210-p2180.dtsi +++ b/arch/arm64/boot/dts/nvidia/tegra210-p2180.dtsi @@ -21,6 +21,10 @@ reg = <0x0 0x80000000 0x1 0x0>; }; + gpu@57000000 { + vdd-supply = <&vdd_gpu>; + }; + /* debug port */ serial@70006000 { status = "okay"; @@ -291,4 +295,18 @@ clock-frequency = <32768>; }; }; + + 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>; + }; + }; }; Patches currently in stable-queue which might be from acourbot@xxxxxxxxxx are queue-4.9/arm64-tegra-add-vdd_gpu-regulator-to-jetson-tx1.patch -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html