disp: msm: update rsc vsync timeout value dynamic

Considering requirement for supporting panel refresh rates upto
1Hz current default timeout value is not sufficient. Based on
panel refresh rate update vsync wait timeout value so that
any vsync waits from here on will have adjusted timeout value.

Change-Id: I65af152c4bd3decdd7135a4cc38f54e3bb3d5c92
Signed-off-by: Prabhanjan Kandula <pkandula@codeaurora.org>

msm/sde_rsc.c

@@ -62,6 +62,10 @@
 
 #define DEFAULT_PANEL_MIN_V_PREFILL	35
 
+/* add 10ms constant for low fps cases and use default timeout for existing cases */
+#define RSC_VSYNC_TIMEOUT_MS(x) ((x && x->cmd_config.fps < 30) ? \
+		((1000 / x->cmd_config.fps) + 10) : PRIMARY_VBLANK_WORST_CASE_MS)
+
 static struct sde_rsc_priv *rsc_prv_list[MAX_RSC_COUNT];
 static struct device *rpmh_dev[MAX_RSC_COUNT];
 
@@ -169,7 +173,7 @@ void sde_rsc_client_destroy(struct sde_rsc_client *client)
 			SDE_EVT32(client->id, state, rsc->current_state,
 					client->crtc_id, wait_vblank_crtc_id,
 					SDE_EVTLOG_ERROR);
-			msleep(PRIMARY_VBLANK_WORST_CASE_MS);
+			msleep(RSC_VSYNC_TIMEOUT_MS(rsc));
 		}
 	}
 	mutex_lock(&rsc->client_lock);
@@ -538,7 +542,7 @@ vsync_wait:
 			SDE_EVT32(caller_client->id, rsc->current_state,
 					caller_client->crtc_id,
 					wait_vblank_crtc_id, SDE_EVTLOG_ERROR);
-			msleep(PRIMARY_VBLANK_WORST_CASE_MS);
+			msleep(RSC_VSYNC_TIMEOUT_MS(rsc));
 		} else {
 			*wait_vblank_crtc_id = rsc->primary_client->crtc_id;
 		}
@@ -585,7 +589,7 @@ static int sde_rsc_switch_to_clk(struct sde_rsc_priv *rsc,
 			rsc->hw_ops.hw_vsync(rsc, VSYNC_ENABLE, NULL, 0, 0);
 		if (!wait_vblank_crtc_id) {
 			pr_err("invalid crtc id wait pointer provided\n");
-			msleep(PRIMARY_VBLANK_WORST_CASE_MS);
+			msleep(RSC_VSYNC_TIMEOUT_MS(rsc));
 		} else {
 			*wait_vblank_crtc_id = rsc->primary_client->crtc_id;
 
@@ -600,7 +604,7 @@ static int sde_rsc_switch_to_clk(struct sde_rsc_priv *rsc,
 		/* Wait for the vsync, if the refcount is set */
 		rc = wait_event_timeout(rsc->rsc_vsync_waitq,
 			atomic_read(&rsc->rsc_vsync_wait) == 0,
-			msecs_to_jiffies(PRIMARY_VBLANK_WORST_CASE_MS*2));
+			msecs_to_jiffies(RSC_VSYNC_TIMEOUT_MS(rsc) * 2));
 		if (!rc) {
 			pr_err("Timeout waiting for vsync\n");
 			rc = -ETIMEDOUT;
@@ -686,7 +690,7 @@ vsync_wait:
 			SDE_EVT32(caller_client->id, rsc->current_state,
 					caller_client->crtc_id,
 					wait_vblank_crtc_id, SDE_EVTLOG_ERROR);
-			msleep(PRIMARY_VBLANK_WORST_CASE_MS);
+			msleep(RSC_VSYNC_TIMEOUT_MS(rsc));
 		} else {
 			*wait_vblank_crtc_id = rsc->primary_client->crtc_id;
 		}