From: Marek Vasut marex@denx.de
[ Upstream commit f756f435f7dd823f2d4bd593ce1bf3168def1308 ]
In case the following power domain sequence happens, iMX8M Mini always hangs: gpumix:on -> gpu:on -> gpu:off -> gpu:on This is likely due to another quirk of the GPC block. This situation can be prevented by always synchronously powering off both the domain and MIX domain. Make it so. This turns the aforementioned sequence into: gpumix:on -> gpu:on -> gpu:off -> gpumix:off -> gpumix:on -> gpu:on
Signed-off-by: Marek Vasut marex@denx.de Cc: Frieder Schrempf frieder.schrempf@kontron.de Cc: Lucas Stach l.stach@pengutronix.de Cc: NXP Linux Team linux-imx@nxp.com Cc: Peng Fan peng.fan@nxp.com Cc: Shawn Guo shawnguo@kernel.org Acked-by: Lucas Stach l.stach@pengutronix.de Signed-off-by: Shawn Guo shawnguo@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/soc/imx/gpcv2.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/soc/imx/gpcv2.c b/drivers/soc/imx/gpcv2.c index 8b7a01773aec2..b4aa28420f2a8 100644 --- a/drivers/soc/imx/gpcv2.c +++ b/drivers/soc/imx/gpcv2.c @@ -369,7 +369,7 @@ static int imx_pgc_power_down(struct generic_pm_domain *genpd) } }
- pm_runtime_put(domain->dev); + pm_runtime_put_sync_suspend(domain->dev);
return 0;