drivers: mdss: queue input handler functions to a high prio wq

Since the input handler code on mdss is related to turn on clocks etc
when it detects a touch input (this has nothing to do with cpufreq) I
strongly believe it should be queued into a dedicated wq with higher
priority.

Signed-off-by: Francisco Franco <franciscofranco.1990@gmail.com>
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>

drivers/video/fbdev/msm/mdss_mdp_intf_cmd.c

@@ -82,6 +82,7 @@ struct mdss_mdp_cmd_ctx {
 	struct work_struct gate_clk_work;
 	struct delayed_work delayed_off_clk_work;
 	struct work_struct pp_done_work;
+	struct workqueue_struct *early_wakeup_clk_wq;
 	struct work_struct early_wakeup_clk_work;
 	atomic_t pp_done_cnt;
 	struct completion rdptr_done;
@@ -3505,7 +3506,9 @@ static int mdss_mdp_cmd_early_wake_up(struct mdss_mdp_ctl *ctl)
 	 * Only schedule if the interface has not been stopped.
 	 */
 	if (ctx && !ctx->intf_stopped)
-		schedule_work(&ctx->early_wakeup_clk_work);
+		queue_work(ctx->early_wakeup_clk_wq,
+			&ctx->early_wakeup_clk_work);
+
 	return 0;
 }
 
@@ -3528,6 +3531,8 @@ static int mdss_mdp_cmd_ctx_setup(struct mdss_mdp_ctl *ctl,
 	ctx->aux_pp_num = aux_pp_num;
 	ctx->pingpong_split_slave = pingpong_split_slave;
 	ctx->pp_timeout_report_cnt = 0;
+	ctx->early_wakeup_clk_wq
+		= alloc_workqueue("early_wakeup_clk_wq", WQ_HIGHPRI, 0);
 	init_waitqueue_head(&ctx->pp_waitq);
 	init_waitqueue_head(&ctx->rdptr_waitq);
 	init_completion(&ctx->stop_comp);