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media: intel/ipu6: Obtain link frequency from the remote subdev pad

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Obtain the link frequency from the sub-device's pad instead of a control
handler. This allows obtaining it using the get_mbus_config() sub-device
pad op which is the only method supported by the IVSC driver.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
This commit is contained in:
Sakari Ailus 2024-04-29 12:19:40 +03:00 committed by Hans Verkuil
parent 91d6a99acf
commit 55a163e6d9
1 changed files with 3 additions and 9 deletions
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12
drivers/media/pci/intel/ipu6/ipu6-isys-csi2.c
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@ -80,25 +80,19 @@ static const struct ipu6_csi2_error dphy_rx_errors[] = {
s64 ipu6_isys_csi2_get_link_freq(struct ipu6_isys_csi2 *csi2)
{
struct media_pad *src_pad;
struct v4l2_subdev *ext_sd;
struct device *dev;
if (!csi2)
return -EINVAL;
dev = &csi2->isys->adev->auxdev.dev;
src_pad = media_entity_remote_source_pad_unique(&csi2->asd.sd.entity);
if (IS_ERR(src_pad)) {
dev_err(dev, "can't get source pad of %s (%ld)\n",
dev_err(&csi2->isys->adev->auxdev.dev,
"can't get source pad of %s (%ld)\n",
csi2->asd.sd.name, PTR_ERR(src_pad));
return PTR_ERR(src_pad);
}
ext_sd = media_entity_to_v4l2_subdev(src_pad->entity);
if (WARN(!ext_sd, "Failed to get subdev for %s\n", csi2->asd.sd.name))
return -ENODEV;
return v4l2_get_link_freq(ext_sd->ctrl_handler, 0, 0);
return v4l2_get_link_freq(src_pad, 0, 0);
}
static int csi2_subscribe_event(struct v4l2_subdev *sd, struct v4l2_fh *fh,