CHROMIUM: MALI: Freeze temperature polling while suspended
We don't need to run temperature polling while the system is
suspending / resuming. We'll mark ourselves freezable. Without this
suspend/resume freezes on rk3288-veyron devices.
BUG=chromium:970685
TEST=suspend / resume
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/1644069
Legacy-Commit-Queue: Commit Bot <commit-bot@chromium.org>
Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
Reviewed-by: Dominik Behr <dbehr@chromium.org>
(cherry picked from commit abb47ccba91ff211b3fef3c58ba8d8c6c1e5eadb)
Signed-off-by: Nicolas Boichat <drinkcat@chromium.org>
Change-Id: Ibd5f1f10c86373d96d32feb6069a9dd31b5e8059
Signed-off-by: Nicolas Boichat <drinkcat@chromium.org>
diff --git a/drivers/gpu/arm/midgard/ipa/mali_kbase_ipa_simple.c b/drivers/gpu/arm/midgard/ipa/mali_kbase_ipa_simple.c
index 852559e..91dcf6c 100644
--- a/drivers/gpu/arm/midgard/ipa/mali_kbase_ipa_simple.c
+++ b/drivers/gpu/arm/midgard/ipa/mali_kbase_ipa_simple.c
@@ -27,6 +27,7 @@
#endif
#include <linux/of.h>
#include <linux/delay.h>
+#include <linux/freezer.h>
#include <linux/kthread.h>
#include "mali_kbase.h"
@@ -154,6 +155,8 @@
int temp;
#endif
+ set_freezable();
+
while (!kthread_should_stop()) {
struct thermal_zone_device *tz = READ_ONCE(model_data->gpu_tz);
@@ -173,6 +176,7 @@
WRITE_ONCE(model_data->current_temperature, temp);
msleep_interruptible(READ_ONCE(model_data->temperature_poll_interval_ms));
+ try_to_freeze();
}
return 0;
