V4L/DVB (8639): saa6752hs: cleanup and add AC-3 support

Cleaned up the saa6752hs i2c driver.
Add AC-3 support.
Add VIDIOC_CHIP_IDENT support.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 5 insertions, 1 deletions

diff --git a/drivers/media/video/v4l2-common.c b/drivers/media/video/v4l2-common.c
index a523af78bdb1..0c511839f7ee 100644
--- a/drivers/media/video/v4l2-common.c
+++ b/drivers/media/video/v4l2-common.c
@@ -637,13 +637,17 @@ int v4l2_ctrl_query_fill_std(struct v4l2_queryctrl *qctrl)
 EXPORT_SYMBOL(v4l2_ctrl_query_fill_std);
 
 /* Fill in a struct v4l2_querymenu based on the struct v4l2_queryctrl and
-   the menu. The qctrl pointer may be NULL, in which case it is ignored. */
+   the menu. The qctrl pointer may be NULL, in which case it is ignored.
+   If menu_items is NULL, then the menu items are retrieved using
+   v4l2_ctrl_get_menu. */
 int v4l2_ctrl_query_menu(struct v4l2_querymenu *qmenu, struct v4l2_queryctrl *qctrl,
                const char **menu_items)
 {
         int i;
 
         qmenu->reserved = 0;
+        if (menu_items == NULL)
+                menu_items = v4l2_ctrl_get_menu(qmenu->id);
         if (menu_items == NULL ||
             (qctrl && (qmenu->index < qctrl->minimum || qmenu->index > qctrl->maximum)))
                 return -EINVAL;