diff options
| author | Geert Uytterhoeven <geert+renesas@glider.be> | 2017-11-09 14:27:02 +0100 |
|---|---|---|
| committer | Simon Horman <horms+renesas@verge.net.au> | 2017-12-20 11:16:05 +0100 |
| commit | 91c719f5ec6671f7b63762d78897af5583dd7693 (patch) | |
| tree | 05efae311c7105700b26a46d4bfde551ddc9eddf /drivers/soc | |
| parent | 90f0d2b344313a8a4c366ef60d0df33008d2be84 (diff) | |
| download | linux-91c719f5ec6671f7b63762d78897af5583dd7693.tar.gz | |
soc: renesas: rcar-sysc: Keep wakeup sources active during system suspend
If an R-Car SYSC slave device is part of the CPG/MSTP or 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>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Diffstat (limited to 'drivers/soc')
| -rw-r--r-- | drivers/soc/renesas/rcar-sysc.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/soc/renesas/rcar-sysc.c b/drivers/soc/renesas/rcar-sysc.c index 55a47e509e49..52c25a5e2646 100644 --- a/drivers/soc/renesas/rcar-sysc.c +++ b/drivers/soc/renesas/rcar-sysc.c @@ -224,7 +224,7 @@ static void __init rcar_sysc_pd_setup(struct rcar_sysc_pd *pd) if (!(pd->flags & (PD_CPU | PD_SCU))) { /* Enable Clock Domain for I/O devices */ - genpd->flags |= GENPD_FLAG_PM_CLK; + genpd->flags |= GENPD_FLAG_PM_CLK | GENPD_FLAG_ACTIVE_WAKEUP; if (has_cpg_mstp) { genpd->attach_dev = cpg_mstp_attach_dev; genpd->detach_dev = cpg_mstp_detach_dev; |