With the introduction of CSI2 support on sh-mobile, the host driver
switched to using v4l2_device_call_until_err() with grp_id == 0 to
call subdev operations on the sensor and the CSI2 subdev. However,
this has broken multi-client set ups like the one on migor, because
that way all operations get called on both clients. To fix this add
a grp_id and set it to the client private context.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@xxxxxx>
---
drivers/media/video/sh_mobile_ceu_camera.c | 10 +++++-----
drivers/media/video/sh_mobile_csi2.c | 1 +
drivers/media/video/soc_camera.c | 4 +++-
3 files changed, 9 insertions(+), 6 deletions(-)
diff --git a/drivers/media/video/sh_mobile_ceu_camera.c b/drivers/media/video/sh_mobile_ceu_camera.c
index 3fe54bf..d84daf1 100644
--- a/drivers/media/video/sh_mobile_ceu_camera.c
+++ b/drivers/media/video/sh_mobile_ceu_camera.c
@@ -922,7 +922,7 @@ static int sh_mobile_ceu_get_formats(struct soc_camera_device *icd, unsigned int
/* Try 2560x1920, 1280x960, 640x480, 320x240 */
mf.width = 2560 >> shift;
mf.height = 1920 >> shift;
- ret = v4l2_device_call_until_err(sd->v4l2_dev, 0, video,
+ ret = v4l2_device_call_until_err(sd->v4l2_dev, (int)icd, video,
s_mbus_fmt, &mf);
if (ret < 0)
return ret;
@@ -1224,7 +1224,7 @@ static int client_s_fmt(struct soc_camera_device *icd,
struct v4l2_cropcap cap;
int ret;
- ret = v4l2_device_call_until_err(sd->v4l2_dev, 0, video,
+ ret = v4l2_device_call_until_err(sd->v4l2_dev, (int)icd, video,
s_mbus_fmt, mf);
if (ret < 0)
return ret;
@@ -1254,7 +1254,7 @@ static int client_s_fmt(struct soc_camera_device *icd,
tmp_h = min(2 * tmp_h, max_height);
mf->width = tmp_w;
mf->height = tmp_h;
- ret = v4l2_device_call_until_err(sd->v4l2_dev, 0, video,
+ ret = v4l2_device_call_until_err(sd->v4l2_dev, (int)icd, video,
s_mbus_fmt, mf);
dev_geo(dev, "Camera scaled to %ux%u\n",
mf->width, mf->height);
@@ -1658,7 +1658,7 @@ static int sh_mobile_ceu_try_fmt(struct soc_camera_device *icd,
mf.code = xlate->code;
mf.colorspace = pix->colorspace;
- ret = v4l2_device_call_until_err(sd->v4l2_dev, 0, video, try_mbus_fmt, &mf);
+ ret = v4l2_device_call_until_err(sd->v4l2_dev, (int)icd, video, try_mbus_fmt, &mf);
if (ret < 0)
return ret;
@@ -1682,7 +1682,7 @@ static int sh_mobile_ceu_try_fmt(struct soc_camera_device *icd,
*/
mf.width = 2560;
mf.height = 1920;
- ret = v4l2_device_call_until_err(sd->v4l2_dev, 0, video,
+ ret = v4l2_device_call_until_err(sd->v4l2_dev, (int)icd, video,
try_mbus_fmt, &mf);
if (ret < 0) {
/* Shouldn't actually happen... */
diff --git a/drivers/media/video/sh_mobile_csi2.c b/drivers/media/video/sh_mobile_csi2.c
index dd1b81b..94e575f 100644
--- a/drivers/media/video/sh_mobile_csi2.c
+++ b/drivers/media/video/sh_mobile_csi2.c
@@ -208,6 +208,7 @@ static int sh_csi2_notify(struct notifier_block *nb,
case BUS_NOTIFY_BOUND_DRIVER:
snprintf(priv->subdev.name, V4L2_SUBDEV_NAME_SIZE, "%s%s",
dev_name(v4l2_dev->dev), ".mipi-csi");
+ priv->subdev.grp_id = (int)icd;
ret = v4l2_device_register_subdev(v4l2_dev, &priv->subdev);
dev_dbg(dev, "%s(%p): ret(register_subdev) = %d\n", __func__, priv, ret);
if (ret < 0)
diff --git a/drivers/media/video/soc_camera.c b/drivers/media/video/soc_camera.c
index 4628448..e97be53 100644
--- a/drivers/media/video/soc_camera.c
+++ b/drivers/media/video/soc_camera.c
@@ -1071,6 +1071,9 @@ static int soc_camera_probe(struct device *dev)
}
}
+ sd = soc_camera_to_subdev(icd);
+ sd->grp_id = (int)icd;
+
/* At this point client .probe() should have run already */
ret = soc_camera_init_user_formats(icd);
if (ret < 0)
@@ -1092,7 +1095,6 @@ static int soc_camera_probe(struct device *dev)
goto evidstart;
/* Try to improve our guess of a reasonable window format */
- sd = soc_camera_to_subdev(icd);
if (!v4l2_subdev_call(sd, video, g_mbus_fmt, &mf)) {
icd->user_width = mf.width;
icd->user_height = mf.height;
--
1.7.2.5
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