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 <[email protected]> --- v2: - Integrate "soc: renesas: rcar-sysc: Use GENPD_FLAG_ACTIVE_WAKEUP", --- drivers/soc/renesas/rcar-sysc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/soc/renesas/rcar-sysc.c b/drivers/soc/renesas/rcar-sysc.c index c8406e81640f6560..ac4df1c43b2fbdbe 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; -- 2.7.4
