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clk: renesas: cpg-mssr: Use always-on governor for Clock Domain 

As a pure Clock Domain does not have the concept of powering the domain
itself, the CPG/MSTP driver does not provide power_off() and power_on()
callbacks.
However, the genpd core may still perform a dummy power down, causing
/sys/kernel/debug/pm_genpd/pm_genpd_summary to report the domain's
status being "off-0".

Use the always-on governor to make sure the domain is never powered
down, and always shows up as "on" in pm_genpd_summary.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
hifive-unleashed-5.1
Geert Uytterhoeven 2016-04-22 14:59:10 +02:00
parent 93662500a1
commit d04a75af45
1 changed files with 1 additions and 1 deletions
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2
drivers/clk/renesas/renesas-cpg-mssr.c
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@ -495,7 +495,7 @@ static int __init cpg_mssr_add_clk_domain(struct device *dev,
genpd->flags = GENPD_FLAG_PM_CLK;
genpd->attach_dev = cpg_mssr_attach_dev;
genpd->detach_dev = cpg_mssr_detach_dev;
pm_genpd_init(genpd, &simple_qos_governor, false);
pm_genpd_init(genpd, &pm_domain_always_on_gov, false);
cpg_mssr_clk_domain = pd;
of_genpd_add_provider_simple(np, genpd);