patches.renesas/0145-media-v4l-vsp1-Disable-HSV-formats-on-Gen3-hardware.patch

From b3de52df146afcab2c2fb0efcc83128484cc3b01 Mon Sep 17 00:00:00 2001
From: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Date: Tue, 28 Feb 2017 19:44:55 -0300
Subject: [PATCH 145/286] [media] v4l: vsp1: Disable HSV formats on Gen3
 hardware

While all VSP instances can process HSV internally, on Gen3 hardware
reading or writing HSV24 or HSV32 from/to memory causes the device to
hang. Disable those pixel formats on Gen3 hardware.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
(cherry picked from commit 40ad34d8ebe7abd0d4df35a3364bf446e10f5c52)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 drivers/media/platform/vsp1/vsp1_pipe.c |   12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

--- a/drivers/media/platform/vsp1/vsp1_pipe.c
+++ b/drivers/media/platform/vsp1/vsp1_pipe.c
@@ -157,9 +157,15 @@ const struct vsp1_format_info *vsp1_get_
 {
 	unsigned int i;
 
-	/* Special case, the VYUY format is supported on Gen2 only. */
-	if (vsp1->info->gen != 2 && fourcc == V4L2_PIX_FMT_VYUY)
-		return NULL;
+	/* Special case, the VYUY and HSV formats are supported on Gen2 only. */
+	if (vsp1->info->gen != 2) {
+		switch (fourcc) {
+		case V4L2_PIX_FMT_VYUY:
+		case V4L2_PIX_FMT_HSV24:
+		case V4L2_PIX_FMT_HSV32:
+			return NULL;
+		}
+	}
 
 	for (i = 0; i < ARRAY_SIZE(vsp1_video_formats); ++i) {
 		const struct vsp1_format_info *info = &vsp1_video_formats[i];