From: Prasanna Kumar <prasanna.ps@xxxxxxxxxxx>
Power domain and device timing data are intialized with default
values to avoid dump of warnings from various power domains
during power gating.
Signed-off-by: Prasanna Kumar <prasanna.ps@xxxxxxxxxxx>
Signed-off-by: Prathyush K <prathyush.k@xxxxxxxxxxx>
Signed-off-by: Sachin Kamat <sachin.kamat@xxxxxxxxxx>
---
arch/arm/mach-exynos/pm_domains.c | 15 ++++++++++++++-
1 file changed, 14 insertions(+), 1 deletion(-)
diff --git a/arch/arm/mach-exynos/pm_domains.c b/arch/arm/mach-exynos/pm_domains.c
index 84e0483a0500..9bbb4ac23980 100644
--- a/arch/arm/mach-exynos/pm_domains.c
+++ b/arch/arm/mach-exynos/pm_domains.c
@@ -25,6 +25,10 @@
#include <mach/regs-pmu.h>
#include <plat/devs.h>
+#define DEFAULT_DEV_LATENCY_NS 1000000UL
+#define DEFAULT_PD_PWRON_LATENCY_NS 10000000UL
+#define DEFAULT_PD_PWROFF_LATENCY_NS 10000000UL
+
/*
* Exynos specific wrapper around the generic power domain
*/
@@ -36,6 +40,13 @@ struct exynos_pm_domain {
u32 enable;
};
+static struct gpd_timing_data dev_latencies = {
+ .stop_latency_ns = DEFAULT_DEV_LATENCY_NS,
+ .start_latency_ns = DEFAULT_DEV_LATENCY_NS,
+ .save_state_latency_ns = DEFAULT_DEV_LATENCY_NS,
+ .restore_state_latency_ns = DEFAULT_DEV_LATENCY_NS,
+};
+
static int exynos_pd_power(struct generic_pm_domain *domain, bool power_on)
{
struct exynos_pm_domain *pd;
@@ -83,7 +94,7 @@ static void exynos_add_device_to_domain(struct exynos_pm_domain *pd,
dev_dbg(dev, "adding to power domain %s\n", pd->pd.name);
while (1) {
- ret = pm_genpd_add_device(&pd->pd, dev);
+ ret = __pm_genpd_add_device(&pd->pd, dev, &dev_latencies);
if (ret != -EAGAIN)
break;
cond_resched();
@@ -173,6 +184,8 @@ static __init int exynos4_pm_init_power_domain(void)
pd->base = of_iomap(np, 0);
pd->pd.power_off = exynos_pd_power_off;
pd->pd.power_on = exynos_pd_power_on;
+ pd->pd.power_off_latency_ns = DEFAULT_PD_PWROFF_LATENCY_NS;
+ pd->pd.power_on_latency_ns = DEFAULT_PD_PWRON_LATENCY_NS;
pd->pd.of_node = np;
platform_set_drvdata(pdev, pd);
--
1.7.9.5
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