[PATCH v1] gpu: host1x: Fix hang on Tegra186+

Thierry Reding thierry.reding at gmail.com
Thu Jan 27 17:32:59 UTC 2022


On Thu, Dec 23, 2021 at 05:46:50PM +0300, Dmitry Osipenko wrote:
> Tegra186+ hangs if host1x hardware is disabled at a kernel boot time
> because we touch hardware before runtime PM is resumed. Move sync point
> assignment initialization to the RPM-resume callback. Older SoCs were
> unaffected because they skip that sync point initialization.
> 
> Tested-by: Jon Hunter <jonathanh at nvidia.com> # T186
> Reported-by: Jon Hunter <jonathanh at nvidia.com> # T186
> Fixes: 6b6776e2ab8a ("gpu: host1x: Add initial runtime PM and OPP support")
> Signed-off-by: Dmitry Osipenko <digetx at gmail.com>
> ---
>  drivers/gpu/host1x/syncpt.c | 16 ++++++++--------
>  1 file changed, 8 insertions(+), 8 deletions(-)

Applied, thanks.

Thierry
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