From: Tony Lindgren <tony@xxxxxxxxxxx>
[ Upstream commit 93c60483b5feefced92b869d5f97769495bc6313 ]
Commit 03856e928b0e ("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: 03856e928b0e ("bus: ti-sysc: Handle mstandby quirk and use it for musb")
Signed-off-by: Tony Lindgren <tony@xxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/bus/ti-sysc.c | 3 ++-
include/linux/platform_data/ti-sysc.h | 1 +
2 files changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/bus/ti-sysc.c b/drivers/bus/ti-sysc.c
index 6dc9d460e3065..52c2485498109 100644
--- a/drivers/bus/ti-sysc.c
+++ b/drivers/bus/ti-sysc.c
@@ -981,7 +981,8 @@ 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);
diff --git a/include/linux/platform_data/ti-sysc.h b/include/linux/platform_data/ti-sysc.h
index 0b93804751444..8cfe570fdece6 100644
--- a/include/linux/platform_data/ti-sysc.h
+++ b/include/linux/platform_data/ti-sysc.h
@@ -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)
--
2.20.1
