Skip to content
Snippets Groups Projects
Commit be5aa5a1 authored by Jon Hunter's avatar Jon Hunter Committed by 谢秀奇
Browse files

arm64: tegra: Update Jetson TX1 GPU regulator timings


commit ece6031e upstream.

The GPU regulator enable ramp delay for Jetson TX1 is set to 1ms which
not sufficient because the enable ramp delay has been measured to be
greater than 1ms. Furthermore, the downstream kernels released by NVIDIA
for Jetson TX1 are using a enable ramp delay 2ms and a settling delay of
160us. Update the GPU regulator enable ramp delay for Jetson TX1 to be
2ms and add a settling delay of 160us.

Cc: stable@vger.kernel.org
Signed-off-by: default avatarJon Hunter <jonathanh@nvidia.com>
Fixes: 5e6b9a89 ("arm64: tegra: Add VDD_GPU regulator to Jetson TX1")
Signed-off-by: default avatarThierry Reding <treding@nvidia.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: default avatarYang Yingliang <yangyingliang@huawei.com>
parent 39bf7199
No related branches found
No related tags found
No related merge requests found
......@@ -330,7 +330,8 @@
regulator-max-microvolt = <1320000>;
enable-gpios = <&pmic 6 GPIO_ACTIVE_HIGH>;
regulator-ramp-delay = <80>;
regulator-enable-ramp-delay = <1000>;
regulator-enable-ramp-delay = <2000>;
regulator-settling-time-us = <160>;
};
};
};
0% or .
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment