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media: stm32-dcmi: only enable IT frame on JPEG capture 

Only enable IT frame on JPEG capture, this saves some CPU
interruptions and processing on all the other cases.

Signed-off-by: Hugues Fruchet <hugues.fruchet@st.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
This commit is contained in:
Hugues Fruchet 2018-09-24 08:54:59 -04:00 committed by Mauro Carvalho Chehab
parent 44d7f1a77d
commit b88ff59e79
1 changed files with 4 additions and 1 deletions
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5
drivers/media/platform/stm32/stm32-dcmi.c
View File

@ -659,7 +659,10 @@ static int dcmi_start_streaming(struct vb2_queue *vq, unsigned int count)
}
/* Enable interruptions */
reg_set(dcmi->regs, DCMI_IER, IT_FRAME | IT_OVR | IT_ERR);
if (dcmi->sd_format->fourcc == V4L2_PIX_FMT_JPEG)
reg_set(dcmi->regs, DCMI_IER, IT_FRAME | IT_OVR | IT_ERR);
else
reg_set(dcmi->regs, DCMI_IER, IT_OVR | IT_ERR);
return 0;