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Merge tag 'renesas-soc2-for-v4.16' of https://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/soc

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Second Round of Renesas ARM Based SoC Updates for v4.16

* rcar-sysc: Keep wakeup sources active during system suspend

  Geert Uytterhoeven says "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."

* tag 'renesas-soc2-for-v4.16' of https://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
  soc: renesas: rcar-sysc: Keep wakeup sources active during system suspend

Signed-off-by: Olof Johansson <olof@lixom.net>
This commit is contained in:
Olof Johansson
2018-01-04 22:52:06 -08:00
parent 33f0624c6a 91c719f5ec
commit 3864a53e14
1 changed files with 1 additions and 1 deletions
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2
drivers/soc/renesas/rcar-sysc.c
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@@ -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;