input: cfboost: Explicitly turn on the GPU

Currently we inform the QoS that the GPU should be powered, however,
we need to also restore the state of the GPU. This patch adds explicit
pm_runtime_get/put_autosuspend() calls to ensure that the GPU is really
initialised immediately.

Bug 1506585

Change-Id: I1f08ca072f4a7ef038bb4e8e12323846480c6a12
Signed-off-by: Arto Merilainen <amerilainen@nvidia.com>
Reviewed-on: http://git-master/r/403770
(cherry-picked from commit 22665ef35d4d70dda8763d83ad866bc4b145fd11)
Reviewed-on: http://git-master/r/405231
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>

diff --git a/drivers/input/input-cfboost.c b/drivers/input/input-cfboost.c
index 024b5216c6aa99a6c50feb7b8c95f3ceba969294..c5596193a00154e23188223f9987249477d7342d 100644 (file)
--- a/drivers/input/input-cfboost.c
+++ b/drivers/input/input-cfboost.c
@@ -18,6 +18,7 @@
 #include <linux/input.h>
 #include <linux/module.h>
 #include <linux/pm_qos.h>
+#include <linux/pm_runtime.h>
 #include <linux/sched/rt.h>
 
 #define CREATE_TRACE_POINTS
@@ -111,9 +112,12 @@ static void cfb_boost(struct kthread_work *w)
                pm_qos_update_request_timeout(&freq_req, boost_freq,
                                boost_time * 1000);
 
-       if (gpu_wakeup && gpu_device)
+       if (gpu_wakeup && gpu_device) {
                dev_pm_qos_update_request_timeout(&gpu_wakeup_req,
                                PM_QOS_FLAG_NO_POWER_OFF, boost_time);
+               pm_runtime_get(gpu_device);
+               pm_runtime_put_autosuspend(gpu_device);
+       }
 }
 
 static struct task_struct *boost_kthread;