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From 992fc6d6d31391d2eeff80b8f7f1992fe5e40fe0 Mon Sep 17 00:00:00 2001
From: Naushir Patuck <naush@raspberrypi.com>
Date: Tue, 29 Jun 2021 12:50:58 +0100
Subject: [PATCH] staging: vc04_services: isp: Set the YUV420/YVU420
format stride to 64 bytes
The bcm2835 ISP requires the base address of all input/output planes to have 32
byte alignment. Using a Y stride of 32 bytes would not guarantee that the V
plane would fulfil this, e.g. a height of 650 lines would mean the V plane
buffer is not 32 byte aligned for YUV420 formats.
Having a Y stride of 64 bytes would ensure both U and V planes have a 32 byte
alignment, as the luma height will always be an even number of lines.
Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
---
drivers/staging/vc04_services/bcm2835-isp/bcm2835-isp-fmts.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/drivers/staging/vc04_services/bcm2835-isp/bcm2835-isp-fmts.h
+++ b/drivers/staging/vc04_services/bcm2835-isp/bcm2835-isp-fmts.h
@@ -48,7 +48,7 @@ static const struct bcm2835_isp_fmt supp
/* YUV formats */
.fourcc = V4L2_PIX_FMT_YUV420,
.depth = 8,
- .bytesperline_align = 32,
+ .bytesperline_align = 64,
.mmal_fmt = MMAL_ENCODING_I420,
.size_multiplier_x2 = 3,
.colorspace_mask = V4L2_COLORSPACE_MASK_YUV,
@@ -57,7 +57,7 @@ static const struct bcm2835_isp_fmt supp
}, {
.fourcc = V4L2_PIX_FMT_YVU420,
.depth = 8,
- .bytesperline_align = 32,
+ .bytesperline_align = 64,
.mmal_fmt = MMAL_ENCODING_YV12,
.size_multiplier_x2 = 3,
.colorspace_mask = V4L2_COLORSPACE_MASK_YUV,
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