Set the frequency of the suspend OPP, so that DevFreq
core can use it during system sleep/reboot/power-off.
Signed-off-by: Tobias Jakobi <tjakobi@xxxxxxxxxxxxxxxxxxxxx>
---
drivers/devfreq/exynos-bus.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/drivers/devfreq/exynos-bus.c b/drivers/devfreq/exynos-bus.c
index 29866f7..16fb37a 100644
--- a/drivers/devfreq/exynos-bus.c
+++ b/drivers/devfreq/exynos-bus.c
@@ -389,6 +389,7 @@ static int exynos_bus_probe(struct platform_device *pdev)
struct devfreq_passive_data *passive_data;
struct devfreq *parent_devfreq;
struct exynos_bus *bus;
+ struct dev_pm_opp *suspend_opp;
int ret, max_state;
unsigned long min_freq, max_freq;
@@ -449,6 +450,13 @@ static int exynos_bus_probe(struct platform_device *pdev)
goto err;
}
+ /* Check for suspend OPP and store the corresponding frequency. */
+ rcu_read_lock();
+ suspend_opp = dev_pm_opp_get_suspend_opp(dev);
+ if (suspend_opp)
+ bus->devfreq->suspend_freq = dev_pm_opp_get_freq(suspend_opp);
+ rcu_read_unlock();
+
/* Register opp_notifier to catch the change of OPP */
ret = devm_devfreq_register_opp_notifier(dev, bus->devfreq);
if (ret < 0) {
--
2.7.3
--
To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
