[PATCH 5.15 273/779] media: imx-jpeg: Refactor function mxc_jpeg_parse

From: Greg Kroah-Hartman
Date: Mon Aug 15 2022 - 14:49:23 EST


From: Ming Qian <ming.qian@xxxxxxx>

[ Upstream commit 8dd504a3a0a5f73b4c137ce3afc35936a4ecd871 ]

Refine code to support dynamic resolution change

Signed-off-by: Ming Qian <ming.qian@xxxxxxx>
Reviewed-by: Mirela Rabulea <mirela.rabulea@xxxxxxx>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xxxxxxxxx>
Signed-off-by: Mauro Carvalho Chehab <mchehab@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/media/platform/imx-jpeg/mxc-jpeg.c | 13 ++++++-------
1 file changed, 6 insertions(+), 7 deletions(-)

diff --git a/drivers/media/platform/imx-jpeg/mxc-jpeg.c b/drivers/media/platform/imx-jpeg/mxc-jpeg.c
index 2d0c1307180f..5064a994a42e 100644
--- a/drivers/media/platform/imx-jpeg/mxc-jpeg.c
+++ b/drivers/media/platform/imx-jpeg/mxc-jpeg.c
@@ -1236,8 +1236,7 @@ static void mxc_jpeg_sizeimage(struct mxc_jpeg_q_data *q)
}
}

-static int mxc_jpeg_parse(struct mxc_jpeg_ctx *ctx,
- u8 *src_addr, u32 size, bool *dht_needed)
+static int mxc_jpeg_parse(struct mxc_jpeg_ctx *ctx, struct vb2_buffer *vb)
{
struct device *dev = ctx->mxc_jpeg->dev;
struct mxc_jpeg_q_data *q_data_out, *q_data_cap;
@@ -1247,6 +1246,9 @@ static int mxc_jpeg_parse(struct mxc_jpeg_ctx *ctx,
struct v4l2_jpeg_header header;
struct mxc_jpeg_sof *psof = NULL;
struct mxc_jpeg_sos *psos = NULL;
+ struct mxc_jpeg_src_buf *jpeg_src_buf = vb2_to_mxc_buf(vb);
+ u8 *src_addr = (u8 *)vb2_plane_vaddr(vb, 0);
+ u32 size = vb2_get_plane_payload(vb, 0);
int ret;

memset(&header, 0, sizeof(header));
@@ -1257,7 +1259,7 @@ static int mxc_jpeg_parse(struct mxc_jpeg_ctx *ctx,
}

/* if DHT marker present, no need to inject default one */
- *dht_needed = (header.num_dht == 0);
+ jpeg_src_buf->dht_needed = (header.num_dht == 0);

q_data_out = mxc_jpeg_get_q_data(ctx,
V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE);
@@ -1372,10 +1374,7 @@ static void mxc_jpeg_buf_queue(struct vb2_buffer *vb)

jpeg_src_buf = vb2_to_mxc_buf(vb);
jpeg_src_buf->jpeg_parse_error = false;
- ret = mxc_jpeg_parse(ctx,
- (u8 *)vb2_plane_vaddr(vb, 0),
- vb2_get_plane_payload(vb, 0),
- &jpeg_src_buf->dht_needed);
+ ret = mxc_jpeg_parse(ctx, vb);
if (ret)
jpeg_src_buf->jpeg_parse_error = true;

--
2.35.1