media: camss: set VFE bpl_alignment to 16 for sdm845 and sm8250

From the experiments with camera sensors using SGRBG10_1X10/3280x2464 and
SRGGB10_1X10/3280x2464 formats, it becomes clear that on sdm845 and sm8250
VFE outputs the lines padded to a length multiple of 16 bytes. As in the
current driver the value of the bpl_alignment is set to 8 bytes, the frames
captured in formats with the bytes-per-line value being not a multiple of
16 get corrupted.

Set the bpl_alignment of the camss video output device to 16 for sdm845 and
sm8250 to fix that.

Signed-off-by: Andrey Konovalov <andrey.konovalov@linaro.org>
Tested-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Acked-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>

diff --git a/drivers/media/platform/qcom/camss/camss-vfe.c b/drivers/media/platform/qcom/camss/camss-vfe.c
index e0832f3..06c9556 100644 (file)
--- a/drivers/media/platform/qcom/camss/camss-vfe.c
+++ b/drivers/media/platform/qcom/camss/camss-vfe.c
@@ -1541,7 +1541,11 @@ int msm_vfe_register_entities(struct vfe_device *vfe,
                }
 
                video_out->ops = &vfe->video_ops;
-               video_out->bpl_alignment = 8;
+               if (vfe->camss->version == CAMSS_845 ||
+                   vfe->camss->version == CAMSS_8250)
+                       video_out->bpl_alignment = 16;
+               else
+                       video_out->bpl_alignment = 8;
                video_out->line_based = 0;
                if (i == VFE_LINE_PIX) {
                        video_out->bpl_alignment = 16;