vpp: after switch dv off, hdmi output not follow always hdr policy [1/1]

PD#SWPL-17427

Problem:
when turn off dv vmode set to null, not vsync interrupt,
cause csc fail to monitor cap change

Solution:
csc add monitor for VOUT_EVENT_MODE_CHANGE

Verify:
Verify on u212

Change-Id: I072dcc75a62888abe403c574f2ecd8e796fa3e00
Signed-off-by: robin.zhu <robin.zhu@amlogic.com>

drivers/amlogic/media/enhancement/amvecm/amcsc.c

@@ -388,6 +388,12 @@ int get_hdr_policy(void)
 }
 EXPORT_SYMBOL(get_hdr_policy);
 
+void set_cur_hdr_policy(uint policy)
+{
+	cur_hdr_policy = policy;
+}
+EXPORT_SYMBOL(set_cur_hdr_policy);
+
 enum output_format_e get_force_output(void)
 {
 	return force_output;

drivers/amlogic/media/enhancement/amvecm/amcsc.h

@@ -139,6 +139,7 @@ extern int tx_op_color_primary;
 extern uint cur_csc_type[VD_PATH_MAX];
 
 int get_hdr_policy(void);
+void set_cur_hdr_policy(uint policy);
 enum output_format_e get_force_output(void);
 
 /* 0: hdr->hdr, 1:hdr->sdr, 2:hdr->hlg */

drivers/amlogic/media/video_sink/video.c

@@ -9123,6 +9123,8 @@ int vout_notify_callback(struct notifier_block *block, unsigned long cmd,
 		/* to workaround pkt cleaned during hotplug */
 		if (is_dolby_vision_enable())
 			dolby_vision_set_toggle_flag(2);
+		else
+			set_cur_hdr_policy(0xff);
 #endif
 		break;
 	case VOUT_EVENT_OSD_PREBLEND_ENABLE:

include/linux/amlogic/media/amvecm/amvecm.h

@@ -538,5 +538,6 @@ extern int am_meson_ctm_set(u32 index, struct drm_color_ctm *ctm);
 extern int am_meson_ctm_disable(void);
 
 extern void enable_osd1_mtx(unsigned int en);
+void set_cur_hdr_policy(uint policy);
 #endif /* AMVECM_H */