From b16e928b6a30126f11fcb0030ca9ded6b29062ff Mon Sep 17 00:00:00 2001 From: Marek Vasut Date: Sat, 16 Oct 2021 23:05:47 +0200 Subject: [PATCH] soc: imx: gpcv2: Synchronously suspend MIX domains [ 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 Cc: Frieder Schrempf Cc: Lucas Stach Cc: NXP Linux Team Cc: Peng Fan Cc: Shawn Guo Acked-by: Lucas Stach Signed-off-by: Shawn Guo Signed-off-by: Sasha Levin --- 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; -- 2.30.2