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Commit 7aff2665 authored by Geert Uytterhoeven's avatar Geert Uytterhoeven
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clk: renesas: cpg-mssr: Keep wakeup sources active during system suspend 



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: default avatarGeert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: default avatarUlf Hansson <ulf.hansson@linaro.org>
parent 744dddca

drivers/clk/renesas/renesas-cpg-mssr.c

+1 −1
Original line number Diff line number Diff line
@@ -513,7 +513,7 @@ 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);