OpenE2K
/
linux
6
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

bus: ti-sysc: Fix missing force mstandby quirk handling 

[ Upstream commit 93c60483b5 ]

Commit 03856e928b ("bus: ti-sysc: Handle mstandby quirk and use it for
musb") added quirk handling for mstandby quirk but did not consider that
we also need a quirk variant for SYSC_QUIRK_FORCE_MSTANDBY.

We need to use forced idle mode for both SYSC_QUIRK_SWSUP_MSTANDBY and
SYSC_QUIRK_FORCE_MSTANDBY, but SYSC_QUIRK_SWSUP_MSTANDBY also need to
additionally also configure no-idle mode when enabled.

Fixes: 03856e928b ("bus: ti-sysc: Handle mstandby quirk and use it for musb")
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Tony Lindgren 2019-12-09 13:55:15 -08:00 committed by Greg Kroah-Hartman
parent 58b09300ee
commit 99d9138295
2 changed files with 3 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/bus/ti-sysc.c
View File

@ -987,7 +987,8 @@ static int sysc_disable_module(struct device *dev)
return ret;
}
if (ddata->cfg.quirks & SYSC_QUIRK_SWSUP_MSTANDBY)
if (ddata->cfg.quirks & (SYSC_QUIRK_SWSUP_MSTANDBY) ||
ddata->cfg.quirks & (SYSC_QUIRK_FORCE_MSTANDBY))
best_mode = SYSC_IDLE_FORCE;
reg &= ~(SYSC_IDLE_MASK << regbits->midle_shift);

1
include/linux/platform_data/ti-sysc.h
View File

@ -49,6 +49,7 @@ struct sysc_regbits {
s8 emufree_shift;
};
#define SYSC_QUIRK_FORCE_MSTANDBY BIT(20)
#define SYSC_MODULE_QUIRK_AESS BIT(19)
#define SYSC_MODULE_QUIRK_SGX BIT(18)
#define SYSC_MODULE_QUIRK_HDQ1W BIT(17)