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path: root/drivers/media/platform/omap3isp/isp.c
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Diffstat (limited to 'drivers/media/platform/omap3isp/isp.c')
-rw-r--r--drivers/media/platform/omap3isp/isp.c51
1 files changed, 30 insertions, 21 deletions
diff --git a/drivers/media/platform/omap3isp/isp.c b/drivers/media/platform/omap3isp/isp.c
index 1d7dbd5c0fba..df3a0ec7fd2c 100644
--- a/drivers/media/platform/omap3isp/isp.c
+++ b/drivers/media/platform/omap3isp/isp.c
@@ -792,9 +792,9 @@ int omap3isp_pipeline_pm_use(struct media_entity *entity, int use)
/*
* isp_pipeline_link_notify - Link management notification callback
- * @source: Pad at the start of the link
- * @sink: Pad at the end of the link
+ * @link: The link
* @flags: New link flags that will be applied
+ * @notification: The link's state change notification type (MEDIA_DEV_NOTIFY_*)
*
* React to link management on powered pipelines by updating the use count of
* all entities in the source and sink sides of the link. Entities are powered
@@ -804,29 +804,38 @@ int omap3isp_pipeline_pm_use(struct media_entity *entity, int use)
* off is assumed to never fail. This function will not fail for disconnection
* events.
*/
-static int isp_pipeline_link_notify(struct media_pad *source,
- struct media_pad *sink, u32 flags)
+static int isp_pipeline_link_notify(struct media_link *link, u32 flags,
+ unsigned int notification)
{
- int source_use = isp_pipeline_pm_use_count(source->entity);
- int sink_use = isp_pipeline_pm_use_count(sink->entity);
+ struct media_entity *source = link->source->entity;
+ struct media_entity *sink = link->sink->entity;
+ int source_use = isp_pipeline_pm_use_count(source);
+ int sink_use = isp_pipeline_pm_use_count(sink);
int ret;
- if (!(flags & MEDIA_LNK_FL_ENABLED)) {
+ if (notification == MEDIA_DEV_NOTIFY_POST_LINK_CH &&
+ !(link->flags & MEDIA_LNK_FL_ENABLED)) {
/* Powering off entities is assumed to never fail. */
- isp_pipeline_pm_power(source->entity, -sink_use);
- isp_pipeline_pm_power(sink->entity, -source_use);
+ isp_pipeline_pm_power(source, -sink_use);
+ isp_pipeline_pm_power(sink, -source_use);
return 0;
}
- ret = isp_pipeline_pm_power(source->entity, sink_use);
- if (ret < 0)
- return ret;
+ if (notification == MEDIA_DEV_NOTIFY_POST_LINK_CH &&
+ (flags & MEDIA_LNK_FL_ENABLED)) {
- ret = isp_pipeline_pm_power(sink->entity, source_use);
- if (ret < 0)
- isp_pipeline_pm_power(source->entity, -sink_use);
+ ret = isp_pipeline_pm_power(source, sink_use);
+ if (ret < 0)
+ return ret;
- return ret;
+ ret = isp_pipeline_pm_power(sink, source_use);
+ if (ret < 0)
+ isp_pipeline_pm_power(source, -sink_use);
+
+ return ret;
+ }
+
+ return 0;
}
/* -----------------------------------------------------------------------------
@@ -877,7 +886,7 @@ static int isp_pipeline_enable(struct isp_pipeline *pipe,
if (!(pad->flags & MEDIA_PAD_FL_SINK))
break;
- pad = media_entity_remote_source(pad);
+ pad = media_entity_remote_pad(pad);
if (pad == NULL ||
media_entity_type(pad->entity) != MEDIA_ENT_T_V4L2_SUBDEV)
break;
@@ -967,7 +976,7 @@ static int isp_pipeline_disable(struct isp_pipeline *pipe)
if (!(pad->flags & MEDIA_PAD_FL_SINK))
break;
- pad = media_entity_remote_source(pad);
+ pad = media_entity_remote_pad(pad);
if (pad == NULL ||
media_entity_type(pad->entity) != MEDIA_ENT_T_V4L2_SUBDEV)
break;
@@ -1083,7 +1092,7 @@ static int isp_pipeline_is_last(struct media_entity *me)
pipe = to_isp_pipeline(me);
if (pipe->stream_state == ISP_PIPELINE_STREAM_STOPPED)
return 0;
- pad = media_entity_remote_source(&pipe->output->pad);
+ pad = media_entity_remote_pad(&pipe->output->pad);
return pad->entity == me;
}
@@ -2249,6 +2258,7 @@ static int isp_probe(struct platform_device *pdev)
ret = iommu_attach_device(isp->domain, &pdev->dev);
if (ret) {
dev_err(&pdev->dev, "can't attach iommu device: %d\n", ret);
+ ret = -EPROBE_DEFER;
goto free_domain;
}
@@ -2287,12 +2297,11 @@ detach_dev:
iommu_detach_device(isp->domain, &pdev->dev);
free_domain:
iommu_domain_free(isp->domain);
+ isp->domain = NULL;
error_isp:
isp_xclk_cleanup(isp);
omap3isp_put(isp);
error:
- platform_set_drvdata(pdev, NULL);
-
mutex_destroy(&isp->isp_mutex);
return ret;