di: small window bottom of the screen is blank [1/1]

PD#TV-4708

Problem:
small window, bottom of the screen is covered by
blank on the online video

Solution:
vline is odd, mif out is not right

Verify:
verify on TL1

Change-Id: I39eb0cdfd2f4b200a09a9c8b779f509caf6dea37
Signed-off-by: Yong Qin <yong.qin@amlogic.com>

diff --git a/drivers/amlogic/media/deinterlace/deinterlace.c b/drivers/amlogic/media/deinterlace/deinterlace.c
index 67a4ec5..c532ec8 100644 (file)
--- a/drivers/amlogic/media/deinterlace/deinterlace.c
+++ b/drivers/amlogic/media/deinterlace/deinterlace.c
@@ -129,7 +129,7 @@ static di_dev_t *de_devp;
 static dev_t di_devno;
 static struct class *di_clsp;
 
-static const char version_s[] = "2019-0401:TM2 bring up";
+static const char version_s[] = "2019-0419a:vscale_skip v is odd";
 
 static int bypass_state = 1;
 static int bypass_all;
@@ -4807,9 +4807,16 @@ de_post_process(void *arg, unsigned int zoom_start_x_lines,
        di_end_y = zoom_end_y_lines;
        di_height = di_end_y - di_start_y + 1;
        di_height = di_height / (di_vscale_skip_count_real + 1);
+
        /* make sure the height is even number */
-       if (di_height%2)
-               di_height++;
+       if (di_height%2) {
+               /*for skip mode,post only half line-1*/
+               if (((di_height > 150) && (di_height < 500)) &&
+                       di_vscale_skip_count_real)
+                       di_height = di_height - 3;
+               else
+                       di_height++;
+       }
 
        if (Rd(DI_POST_SIZE) != ((di_width - 1) | ((di_height - 1) << 16)) ||
            di_post_stru.buf_type != di_buf->di_buf_dup_p[0]->type ||