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media: imx-mipi-csis: Simplify access to source pad

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The mipi_csis_calculate_params() function needs to access the pad of the
connected source. The pad is already available in csis->source.pad, but
the function takes a convoluted path by getting the pad index and
indexing the source subdev's pads array. Simplify it.

No functional change is intended.

Link: https://lore.kernel.org/r/20250822002734.23516-3-laurent.pinchart@ideasonboard.com
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
This commit is contained in:
Laurent Pinchart 2025-08-22 03:27:22 +03:00 committed by Hans Verkuil
parent 6234d0df23
commit 0b6b9a0f68
1 changed files with 1 additions and 3 deletions
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4
drivers/media/platform/nxp/imx-mipi-csis.c
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@ -579,13 +579,11 @@ static void __mipi_csis_set_format(struct mipi_csis_device *csis,
static int mipi_csis_calculate_params(struct mipi_csis_device *csis,
const struct csis_pix_format *csis_fmt)
{
struct media_pad *src_pad =
&csis->source.sd->entity.pads[csis->source.pad->index];
s64 link_freq;
u32 lane_rate;
/* Calculate the line rate from the pixel rate. */
link_freq = v4l2_get_link_freq(src_pad, csis_fmt->width,
link_freq = v4l2_get_link_freq(csis->source.pad, csis_fmt->width,
csis->bus.num_data_lanes * 2);
if (link_freq < 0) {
dev_err(csis->dev, "Unable to obtain link frequency: %d\n",