kernel/linux.git/drivers/base/property.c, branch v5.15.7

Revert "media: device property: Call fwnode_graph_get_endpoint_by_id() for fwnode->secondary"

2021-08-16T16:35:42+00:00

This reverts commit acd418bfcfc415cf5e6414b6d1c6acfec850f290. Checking for endpoints against fwnode->secondary in fwnode_graph_get_next_endpoint() is a better way to do this since that function is also used in a bunch of other places, for instance sensor drivers checking that they do have an endpoint connected during probe. This reversion depends on the previous patch in this series, "device property: Check fwnode->secondary in fwnode_graph_get_next_endpoint()". Reviewed-by: Andy Shevchenko Signed-off-by: Daniel Scally Signed-off-by: Rafael J. Wysocki

device property: Check fwnode->secondary in fwnode_graph_get_next_endpoint()

2021-08-16T16:35:41+00:00

Sensor drivers often check for an endpoint to make sure that they're connected to a consuming device like a CIO2 during .probe(). Some of those endpoints might be in the form of software_nodes assigned as a secondary to the device's fwnode_handle. Account for this possibility in fwnode_graph_get_next_endpoint() to avoid having to do it in the sensor drivers themselves. Reviewed-by: Andy Shevchenko Signed-off-by: Daniel Scally Signed-off-by: Rafael J. Wysocki

Merge tag 'driver-core-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

2021-07-05T20:51:41+00:00

Pull driver core changes from Greg KH: "Here is the small set of driver core and debugfs updates for 5.14-rc1. Included in here are: - debugfs api cleanups (touched some drivers) - devres updates - tiny driver core updates and tweaks Nothing major in here at all, and all have been in linux-next for a while with no reported issues" * tag 'driver-core-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (27 commits) docs: ABI: testing: sysfs-firmware-memmap: add some memmap types. devres: Enable trace events devres: No need to call remove_nodes() when there none present devres: Use list_for_each_safe_from() in remove_nodes() devres: Make locking straight forward in release_nodes() kernfs: move revalidate to be near lookup drivers/base: Constify static attribute_group structs firmware_loader: remove unneeded 'comma' macro devcoredump: remove contact information driver core: Drop helper devm_platform_ioremap_resource_wc() component: Rename 'dev' to 'parent' component: Drop 'dev' argument to component_match_realloc() device property: Don't check for NULL twice in the loops driver core: auxiliary bus: Fix typo in the docs drivers/base/node.c: make CACHE_ATTR define static DEVICE_ATTR_RO debugfs: remove return value of debugfs_create_ulong() debugfs: remove return value of debugfs_create_bool() scsi: snic: debugfs: remove local storage of debugfs files b43: don't save dentries for debugfs b43legacy: don't save dentries for debugfs ...

device property: Unify access to of_node

2021-06-07T12:43:41+00:00

Historically we have a few variants how we access dev->fwnode and dev->of_node. Some of the functions during development gained different versions of the getters. Unify access to of_node and as a side change slightly refactor ACPI specific branches. Signed-off-by: Andy Shevchenko Signed-off-by: Rafael J. Wysocki

device property: Don't check for NULL twice in the loops

2021-05-27T13:48:12+00:00

In fwnode_get_next_available_child_node() we check next_child for NULL twice. All the same in fwnode_get_next_parent_dev() we may avoid checking fwnode for NULL twice. Signed-off-by: Andy Shevchenko Link: https://lore.kernel.org/r/20210518064843.3524015-1-andy.shevchenko@gmail.com Signed-off-by: Greg Kroah-Hartman

device property: Retrieve fwnode from of_node via accessor

2021-05-10T14:56:49+00:00

OF provides a specific accessor to retrieve fwnode handle. Use it instead of direct dereferencing. Signed-off-by: Andy Shevchenko Signed-off-by: Rafael J. Wysocki

media: device property: Call fwnode_graph_get_endpoint_by_id() for fwnode->secondary

2021-01-26T18:24:18+00:00

This function is used to find fwnode endpoints against a device. In some instances those endpoints are software nodes which are children of fwnode->secondary. Add support to fwnode_graph_get_endpoint_by_id() to find those endpoints by recursively calling itself passing the ptr to fwnode->secondary in the event no endpoint is found for the primary. Reviewed-by: Andy Shevchenko Reviewed-by: Laurent Pinchart Signed-off-by: Daniel Scally Acked-by: Greg Kroah-Hartman Acked-by: Rafael J. Wysocki Signed-off-by: Sakari Ailus Signed-off-by: Mauro Carvalho Chehab

media: device property: Return true in fwnode_device_is_available for NULL ops

2021-01-26T18:21:34+00:00

Some types of fwnode_handle do not implement the device_is_available() check, such as those created by software_nodes. There isn't really a meaningful way to check for the availability of a device that doesn't actually exist, so if the check isn't implemented just assume that the "device" is present. Suggested-by: Laurent Pinchart Reviewed-by: Laurent Pinchart Reviewed-by: Andy Shevchenko Signed-off-by: Daniel Scally Reviewed-by: Heikki Krogerus Acked-by: Greg Kroah-Hartman Acked-by: Rafael J. Wysocki Signed-off-by: Sakari Ailus Signed-off-by: Mauro Carvalho Chehab

device property: Add fwnode_is_ancestor_of() and fwnode_get_next_parent_dev()

2020-12-09T18:10:21+00:00

Add fwnode_is_ancestor_of() helper function to check if a fwnode is an ancestor of another fwnode. Add fwnode_get_next_parent_dev() helper function that take as input a fwnode and finds the closest ancestor fwnode that has a corresponding struct device and returns that struct device. Signed-off-by: Saravana Kannan Link: https://lore.kernel.org/r/20201121020232.908850-11-saravanak@google.com Signed-off-by: Greg Kroah-Hartman

device property: Move fwnode_connection_find_match() under drivers/base/property.c

2020-09-08T11:32:06+00:00

The function is now only a helper that searches the connection from device graph and then by checking if the supplied connection identifier matches a property that contains reference. Signed-off-by: Heikki Krogerus Link: https://lore.kernel.org/r/20200907120532.37611-2-heikki.krogerus@linux.intel.com Signed-off-by: Greg Kroah-Hartman