[PATCH] omap4iss: Fix overlapping luma/chroma planes

[PATCH] omap4iss: Fix overlapping luma/chroma planes

[Laurent Pinchart]

From: Nate Weibley <nweibley@gmail.com>

The chroma data base address for NV12 formatted data should begin offset
rows*bytes_per_row from the base address for luminance data. We were OBO
causing a stripe of green pixels at the bottom of the frame.

Signed-off-by: Nate Weibley <nweibley@gmail.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
---
 drivers/staging/media/omap4iss/iss_resizer.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

Nate, I've split your original patch
(https://patchwork.linuxtv.org/patch/21816/) in two as the second part still
needs investigation. I'll push this patch to mainline for v4.5.

diff --git a/drivers/staging/media/omap4iss/iss_resizer.c b/drivers/staging/media/omap4iss/iss_resizer.c
index 5030cf3cd34c..b7f9f622385c 100644
--- a/drivers/staging/media/omap4iss/iss_resizer.c
+++ b/drivers/staging/media/omap4iss/iss_resizer.c
@@ -158,8 +158,8 @@ static void resizer_set_outaddr(struct iss_resizer_device *resizer, u32 addr)
 	/* Program UV buffer address... Hardcoded to be contiguous! */
 	if ((informat->code == MEDIA_BUS_FMT_UYVY8_1X16) &&
 	    (outformat->code == MEDIA_BUS_FMT_YUYV8_1_5X8)) {
-		u32 c_addr = addr + (resizer->video_out.bpl_value *
-				     (outformat->height - 1));
+		u32 c_addr = addr + resizer->video_out.bpl_value
+			   * outformat->height;
 
 		/* Ensure Y_BAD_L[6:0] = C_BAD_L[6:0]*/
 		if ((c_addr ^ addr) & 0x7f) {
-- 
Regards,

Laurent Pinchart