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arm64: tegra: Disable the ACONNECT for Jetson TX2 

[ Upstream commit fb31949693 ]

Commit ff4c371d2b ("arm64: defconfig: Build ADMA and ACONNECT driver")
enable the Tegra ADMA and ACONNECT drivers and this is causing resume
from system suspend to fail on Jetson TX2. Resume is failing because the
ACONNECT driver is being resumed before the BPMP driver, and the ACONNECT
driver is attempting to power on a power-domain that is provided by the
BPMP. While a proper fix for the resume sequencing problem is identified,
disable the ACONNECT for Jetson TX2 temporarily to avoid breaking system
suspend.

Please note that ACONNECT driver is used by the Audio Processing Engine
(APE) on Tegra, but because there is no mainline support for APE on
Jetson TX2 currently, disabling the ACONNECT does not disable any useful
feature at the moment.

Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
5.4-rM2-2.2.x-imx-squashed
Jon Hunter 2020-11-16 16:20:26 +00:00 committed by Greg Kroah-Hartman
parent c7e2713374
commit eb5e28ffe3
1 changed files with 0 additions and 12 deletions
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12
arch/arm64/boot/dts/nvidia/tegra186-p2771-0000.dts
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@ -10,18 +10,6 @@
model = "NVIDIA Jetson TX2 Developer Kit";
compatible = "nvidia,p2771-0000", "nvidia,tegra186";
aconnect {
status = "okay";
dma-controller@2930000 {
status = "okay";
};
interrupt-controller@2a40000 {
status = "okay";
};
};
i2c@3160000 {
power-monitor@42 {
compatible = "ti,ina3221";