[PATCH v2 2/3] clk: renesas: cpg-mssr: Keep wakeup sources active during system suspend

[Geert Uytterhoeven <geert+renesas@glider.be>]

If a device is part of the CPG/MSSR 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+renesas@glider.be>
---
v2:
  - Integrate "clk: renesas: cpg-mssr: Use GENPD_FLAG_ACTIVE_WAKEUP",
---
 drivers/clk/renesas/renesas-cpg-mssr.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/clk/renesas/renesas-cpg-mssr.c b/drivers/clk/renesas/renesas-cpg-mssr.c
index e580a5e6346c2533..99699b715d7cf2de 100644
--- a/drivers/clk/renesas/renesas-cpg-mssr.c
+++ b/drivers/clk/renesas/renesas-cpg-mssr.c
@@ -500,7 +500,7 @@ static int __init cpg_mssr_add_clk_domain(struct device *dev,
 
 	genpd = &pd->genpd;
 	genpd->name = np->name;
-	genpd->flags = GENPD_FLAG_PM_CLK;
+	genpd->flags = GENPD_FLAG_PM_CLK | GENPD_FLAG_ACTIVE_WAKEUP;
 	genpd->attach_dev = cpg_mssr_attach_dev;
 	genpd->detach_dev = cpg_mssr_detach_dev;
 	pm_genpd_init(genpd, &pm_domain_always_on_gov, false);
-- 
2.7.4