[media] v4l2-dv-timings: support interlaced in v4l2_print_dv_timings

The v4l2_print_dv_timings() didn't log the interlaced format correctly. The timings
for the bottom field weren't logged and the fields per second value was half of what
it should have been.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

diff --git a/drivers/media/v4l2-core/v4l2-dv-timings.c b/drivers/media/v4l2-core/v4l2-dv-timings.c
index 8986610..9031405 100644 (file)
--- a/drivers/media/v4l2-core/v4l2-dv-timings.c
+++ b/drivers/media/v4l2-core/v4l2-dv-timings.c
@@ -262,6 +262,8 @@ void v4l2_print_dv_timings(const char *dev_prefix, const char *prefix,
 
        htot = V4L2_DV_BT_FRAME_WIDTH(bt);
        vtot = V4L2_DV_BT_FRAME_HEIGHT(bt);
+       if (bt->interlaced)
+               vtot /= 2;
 
        if (prefix == NULL)
                prefix = "";
@@ -282,6 +284,11 @@ void v4l2_print_dv_timings(const char *dev_prefix, const char *prefix,
                        dev_prefix, bt->vfrontporch,
                        (bt->polarities & V4L2_DV_VSYNC_POS_POL) ? "+" : "-",
                        bt->vsync, bt->vbackporch);
+       if (bt->interlaced)
+               pr_info("%s: vertical bottom field: fp = %u, %ssync = %u, bp = %u\n",
+                       dev_prefix, bt->il_vfrontporch,
+                       (bt->polarities & V4L2_DV_VSYNC_POS_POL) ? "+" : "-",
+                       bt->il_vsync, bt->il_vbackporch);
        pr_info("%s: pixelclock: %llu\n", dev_prefix, bt->pixelclock);
        pr_info("%s: flags (0x%x):%s%s%s%s%s\n", dev_prefix, bt->flags,
                        (bt->flags & V4L2_DV_FL_REDUCED_BLANKING) ?