disp: msm: dsi: update threshold time for high refresh rate

Use lower frame threshold time for high refresh rates. For resfreh rates
greater than 120 FPS the threshold time is 500us.

Change-Id: Ie5a37c0eec6c2c2cbf90e039eb6b15bc7edd2492
Signed-off-by: Satya Rama Aditya Pinapala <psraditya30@codeaurora.org>

msm/dsi/dsi_panel.c

@@ -32,6 +32,7 @@
 #define DEFAULT_PANEL_JITTER_ARRAY_SIZE		2
 #define MAX_PANEL_JITTER		10
 #define DEFAULT_PANEL_PREFILL_LINES	25
+#define HIGH_REFRESH_RATE_THRESHOLD_TIME_US	500
 #define MIN_PREFILL_LINES      35
 
 static void dsi_dce_prepare_pps_header(char *buf, u32 pps_delay_ms)
@@ -3578,6 +3579,9 @@ void dsi_panel_calc_dsi_transfer_time(struct dsi_host_common_cfg *config,
 
 	frame_time_us = mult_frac(1000, 1000, (timing->refresh_rate));
 
+	if (timing->refresh_rate >= 120)
+		frame_threshold_us = HIGH_REFRESH_RATE_THRESHOLD_TIME_US;
+
 	if (timing->dsc_enabled) {
 		nslices = (timing->h_active)/(dsc->config.slice_width);
 		/* (slice width x bit-per-pixel + packet overhead) x