mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-09-21 18:11:39 +00:00
Code Issues Releases Wiki Activity

soc: imx: gpcv2: Synchronously suspend MIX domains

Browse source 
[ Upstream commit f756f435f7 ]

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>
This commit is contained in:
Marek Vasut 2021-10-16 23:05:47 +02:00 committed by Greg Kroah-Hartman
parent f573eda00b
commit b16e928b6a
1 changed files with 1 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
drivers/soc/imx/gpcv2.c
View file

@ -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;