This avoids the "... latency exceeded, new value ..." warnings
emitted by the power domain framework code whenever the PU domain
is enabled or disabled.
Signed-off-by: Philipp Zabel <p.zabel@xxxxxxxxxxxxxx>
---
arch/arm/mach-imx/gpc.c | 11 ++++++++++-
1 file changed, 10 insertions(+), 1 deletion(-)
diff --git a/arch/arm/mach-imx/gpc.c b/arch/arm/mach-imx/gpc.c
index 607a6ea..cbac099 100644
--- a/arch/arm/mach-imx/gpc.c
+++ b/arch/arm/mach-imx/gpc.c
@@ -225,6 +225,8 @@ static struct generic_pm_domain imx6q_pu_domain = {
.name = "PU",
.power_off = imx6q_pm_pu_power_off,
.power_on = imx6q_pm_pu_power_on,
+ .power_off_latency_ns = 25000,
+ .power_on_latency_ns = 2000000,
};
int imx6q_pm_clk_add(struct device *dev)
@@ -289,6 +291,13 @@ int imx6q_pm_clk_remove(struct device *dev)
return 0;
}
+static struct gpd_timing_data pu_timing_data = {
+ .stop_latency_ns = 2000,
+ .start_latency_ns = 2000,
+ .save_state_latency_ns = 5000,
+ .restore_state_latency_ns = 20000000, /* VPU firmware reload */
+};
+
static int imx6q_pm_notifier_call(struct notifier_block *nb,
unsigned long event, void *data)
{
@@ -303,7 +312,7 @@ static int imx6q_pm_notifier_call(struct notifier_block *nb,
if (!np || np != imx6q_pu_domain.of_node)
return NOTIFY_DONE;
- ret = pm_genpd_of_add_device(np, dev);
+ ret = __pm_genpd_of_add_device(np, dev, &pu_timing_data);
if (ret)
dev_err(dev, "failed to add to power domain: %d\n",
ret);
--
1.8.5.3
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