At ->probe() it's common practice for drivers/subsystems to bring their devices to full power and without depending on CONFIG_PM_RUNTIME.
We could also expect that drivers/subsystems requires their device's corresponding PM domains to be powered, to successfully complete a ->probe() sequence. Align to the behavior above, by ensuring all PM domains are powered prior initialization of a generic PM domain. Do note, since the generic PM domain will try to power off unused PM domains at late_init, there should be no increased power consumption over time, but potentially during boot. Signed-off-by: Ulf Hansson <[email protected]> --- arch/arm/mach-exynos/pm_domains.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/arch/arm/mach-exynos/pm_domains.c b/arch/arm/mach-exynos/pm_domains.c index 20f2671..58e18e9 100644 --- a/arch/arm/mach-exynos/pm_domains.c +++ b/arch/arm/mach-exynos/pm_domains.c @@ -112,7 +112,7 @@ static __init int exynos4_pm_init_power_domain(void) for_each_compatible_node(np, NULL, "samsung,exynos4210-pd") { struct exynos_pm_domain *pd; - int on, i; + int i; struct device *dev; pdev = of_find_device_by_node(np); @@ -155,9 +155,10 @@ static __init int exynos4_pm_init_power_domain(void) clk_put(pd->oscclk); no_clk: - on = __raw_readl(pd->base + 0x4) & INT_LOCAL_PWR_EN; + if (!(__raw_readl(pd->base + 0x4) & INT_LOCAL_PWR_EN)) + exynos_pd_power_on(&pd->pd); - pm_genpd_init(&pd->pd, NULL, !on); + pm_genpd_init(&pd->pd, NULL, false); of_genpd_add_provider_simple(np, &pd->pd); } -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
