media: verisilicon: VP9: Only propose 10 bits compatible pixels formats

When decoding a 10bits bitstreams VP9 driver should only expose
10bits pixel formats.
To fulfill this requirement it is needed to call hantro_reset_raw_fmt()
when bit depth change and to correctly set match_depth in pixel formats
enumeration.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
Reviewed-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>

drivers/media/platform/verisilicon/hantro_drv.c

@@ -307,9 +307,14 @@ static int hantro_vp9_s_ctrl(struct v4l2_ctrl *ctrl)
 			   struct hantro_ctx, ctrl_handler);
 
 	switch (ctrl->id) {
-	case V4L2_CID_STATELESS_VP9_FRAME:
-		ctx->bit_depth = ctrl->p_new.p_vp9_frame->bit_depth;
-		break;
+	case V4L2_CID_STATELESS_VP9_FRAME: {
+		int bit_depth = ctrl->p_new.p_vp9_frame->bit_depth;
+
+		if (ctx->bit_depth == bit_depth)
+			return 0;
+
+		return hantro_reset_raw_fmt(ctx, bit_depth);
+	}
 	default:
 		return -EINVAL;
 	}