media: v4l: Fix MPEG-2 slice Intra DC Precision validation

intra_dc_precision is a 2-bit integer [1]
allow use of all valid options, 8 - 11 bits precision

[1] ISO/IEC 13818-2 Table 6-13

Fixes: c27bb30e7b6d ("media: v4l: Add definitions for MPEG-2 slice format and metadata")
Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Acked-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

diff --git a/drivers/media/v4l2-core/v4l2-ctrls.c b/drivers/media/v4l2-core/v4l2-ctrls.c
index 5f2b033a7a42f1cb35dd13e40a498232bd3a225d..129a986fa7e1af97d24562b26d1dd17d48564f08 100644 (file)
--- a/drivers/media/v4l2-core/v4l2-ctrls.c
+++ b/drivers/media/v4l2-core/v4l2-ctrls.c
@@ -1636,7 +1636,8 @@ static int std_validate(const struct v4l2_ctrl *ctrl, u32 idx,
                switch (p_mpeg2_slice_params->picture.intra_dc_precision) {
                case 0: /* 8 bits */
                case 1: /* 9 bits */
-               case 11: /* 11 bits */
+               case 2: /* 10 bits */
+               case 3: /* 11 bits */
                        break;
                default:
                        return -EINVAL;