disp: msm: dsi: add qsync min fps val in dsi display mode priv info

In the current code for finding the qsync min fps for a
mode, entire mode list is iterated which involves acquiring
dsi display_lock. During conn tx debugfs commands, if
qsync min fps is required, we try to acquire dsi
display_lock twice which results in hang state. This change
adds qsync min fps value in dsi_display_mode_priv_info
struct in order to get the qsync fps from the
msm_display_mode present in connector state instead of
looping through all the modes to find the mode qsync fps.

Change-Id: Ifded40d1f12462bb50fc7bdafb746ae5b8d9512a
Signed-off-by: Yashwanth <yvulapu@codeaurora.org>

msm/dsi/dsi_display.c

@@ -6969,6 +6969,11 @@ int dsi_display_get_modes(struct dsi_display *display,
 			if (!sub_mode->timing.qsync_min_fps && qsync_caps->qsync_min_fps)
 				sub_mode->timing.qsync_min_fps = qsync_caps->qsync_min_fps;
 
+			/*
+			 * Qsync min fps for the mode will be populated in the timing info
+			 * in dsi_panel_get_mode function.
+			 */
+			sub_mode->priv_info->qsync_min_fps = sub_mode->timing.qsync_min_fps;
 			if (!dfps_caps.dfps_support || !support_video_mode)
 				continue;
 
@@ -6977,8 +6982,10 @@ int dsi_display_get_modes(struct dsi_display *display,
 			sub_mode->timing.refresh_rate = dfps_caps.dfps_list[i];
 
 			/* Override with qsync min fps list in dfps usecases */
-			if (qsync_caps->qsync_min_fps && qsync_caps->qsync_min_fps_list_len)
+			if (qsync_caps->qsync_min_fps && qsync_caps->qsync_min_fps_list_len) {
 				sub_mode->timing.qsync_min_fps = qsync_caps->qsync_min_fps_list[i];
+				sub_mode->priv_info->qsync_min_fps = sub_mode->timing.qsync_min_fps;
+			}
 
 			dsi_display_get_dfps_timing(display, sub_mode,
 					curr_refresh_rate);