diff options
| author | Steve Longerbeam <slongerbeam@gmail.com> | 2019-01-09 21:30:09 +0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab+samsung@kernel.org> | 2019-01-16 22:14:26 +0300 |
| commit | bc11dd6699960c241dc067d55aa4be37b722afd5 (patch) | |
| tree | cd541e49b7be12ced973db684de6c2aaac8dc57f /drivers | |
| parent | 2a87c0c9344489afe6c7a613d883a041a5441bcd (diff) | |
| download | linux-bc11dd6699960c241dc067d55aa4be37b722afd5.tar.xz | |
media: imx: interweave and odd-chroma-row skip are incompatible
If IDMAC interweaving is enabled in a write channel, the channel must
write the odd chroma rows for 4:2:0 formats. Skipping writing the odd
chroma rows produces corrupted captured 4:2:0 images when interweave
is enabled.
Reported-by: Krzysztof Ha?asa <khalasa@piap.pl>
Signed-off-by: Steve Longerbeam <slongerbeam@gmail.com>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/staging/media/imx/imx-ic-prpencvf.c | 9 | ||||
| -rw-r--r-- | drivers/staging/media/imx/imx-media-csi.c | 8 |
2 files changed, 13 insertions, 4 deletions
diff --git a/drivers/staging/media/imx/imx-ic-prpencvf.c b/drivers/staging/media/imx/imx-ic-prpencvf.c index 1a03d4c9d7b8..cf76b0432371 100644 --- a/drivers/staging/media/imx/imx-ic-prpencvf.c +++ b/drivers/staging/media/imx/imx-ic-prpencvf.c @@ -391,12 +391,17 @@ static int prp_setup_channel(struct prp_priv *priv, image.phys0 = addr0; image.phys1 = addr1; - if (channel == priv->out_ch || channel == priv->rot_out_ch) { + /* + * Skip writing U and V components to odd rows in the output + * channels for planar 4:2:0 (but not when enabling IDMAC + * interweaving, they are incompatible). + */ + if (!interweave && (channel == priv->out_ch || + channel == priv->rot_out_ch)) { switch (image.pix.pixelformat) { case V4L2_PIX_FMT_YUV420: case V4L2_PIX_FMT_YVU420: case V4L2_PIX_FMT_NV12: - /* Skip writing U and V components to odd rows */ ipu_cpmem_skip_odd_chroma_rows(channel); break; } diff --git a/drivers/staging/media/imx/imx-media-csi.c b/drivers/staging/media/imx/imx-media-csi.c index 10945cbdbd71..604d0bd24389 100644 --- a/drivers/staging/media/imx/imx-media-csi.c +++ b/drivers/staging/media/imx/imx-media-csi.c @@ -457,8 +457,12 @@ static int csi_idmac_setup_channel(struct csi_priv *priv) ((image.pix.width & 0x1f) ? ((image.pix.width & 0xf) ? 8 : 16) : 32) : 64; passthrough_bits = 16; - /* Skip writing U and V components to odd rows */ - ipu_cpmem_skip_odd_chroma_rows(priv->idmac_ch); + /* + * Skip writing U and V components to odd rows (but not + * when enabling IDMAC interweaving, they are incompatible). + */ + if (!interweave) + ipu_cpmem_skip_odd_chroma_rows(priv->idmac_ch); break; case V4L2_PIX_FMT_YUYV: case V4L2_PIX_FMT_UYVY: |