If a device is part of the CPG/MSTP Clock Domain and to be used as a
wakeup source, it must be kept active during system suspend.
Currently this is handled in device-specific drivers by explicitly
increasing the use count of the module clock when the device is
configured as a wakeup source. However, the proper way to prevent the
device from being stopped is to inform this requirement to the genpd
core, by setting the GENPD_FLAG_ACTIVE_WAKEUP flag.
Note that this will only affect devices configured as wakeup sources.
Signed-off-by: Geert Uytterhoeven <geert+rene...@glider.be>
---
v2:
- Integrate "clk: renesas: mstp: Use GENPD_FLAG_ACTIVE_WAKEUP",
---
drivers/clk/renesas/clk-mstp.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/clk/renesas/clk-mstp.c b/drivers/clk/renesas/clk-mstp.c
index 500a9e4e03c48957..0b222197a4576fd7 100644
--- a/drivers/clk/renesas/clk-mstp.c
+++ b/drivers/clk/renesas/clk-mstp.c
@@ -344,7 +344,7 @@ void __init cpg_mstp_add_clk_domain(struct device_node *np)
return;
pd->name = np->name;
- pd->flags = GENPD_FLAG_PM_CLK;
+ pd->flags = GENPD_FLAG_PM_CLK | GENPD_FLAG_ACTIVE_WAKEUP;
pd->attach_dev = cpg_mstp_attach_dev;
pd->detach_dev = cpg_mstp_detach_dev;
pm_genpd_init(pd, &pm_domain_always_on_gov, false);
--
2.7.4
