blob: cd7604704292d9c4d84b0681a5b7b0395afb3f04 [file] [log] [blame]
From 4b39af206e691b29c808ec87fe4976006b3168e5 Mon Sep 17 00:00:00 2001
From: Geert Uytterhoeven <geert+renesas@glider.be>
Date: Fri, 13 Oct 2017 14:24:22 +0200
Subject: [PATCH 0768/1795] 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: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
(cherry picked from commit 7aff266552d6042b43d3d5a9b13f0009ef862033)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
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 998a2f4b5db5..2c9988fef656 100644
--- a/drivers/clk/renesas/renesas-cpg-mssr.c
+++ b/drivers/clk/renesas/renesas-cpg-mssr.c
@@ -514,7 +514,7 @@ 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);
--
2.19.0