Merge tag 'fpga-dfl-for-5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/mdf/linux-fpga into char-misc-next

Moritz writes:

FPGA DFL Changes for 5.4

This pull-request contains the FPGA DFL changes for 5.4

- The first three patches are cleanup patches making use of dev_groups and
  making the init callback optional.
- One patch adds userclock sysfs entries that are DFL specific
- One patch exposes AFU port disable/enable functions
- One patch adds error reporting
- One patch adds AFU SignalTap support
- One patch adds FME global error reporting
- The final patch is a documentation patch that decribes the
  virtualization interfaces

This patchset requires the 'dev_groups_all_drivers' tag from drivers
core for the dev_groups refactoring as well as the DFL changes already
in char-misc-next.

Signed-off-by: Moritz Fischer <[email protected]>

* tag 'fpga-dfl-for-5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/mdf/linux-fpga:
  Documentation: fpga: dfl: add descriptions for virtualization and new interfaces.
  fpga: dfl: fme: add global error reporting support
  fpga: dfl: afu: add STP (SignalTap) support
  fpga: dfl: afu: add error reporting support.
  fpga: dfl: afu: expose __afu_port_enable/disable function.
  fpga: dfl: afu: add userclock sysfs interfaces.
  fpga: dfl: afu: convert platform_driver to use dev_groups
  fpga: dfl: fme: convert platform_driver to use dev_groups
  fpga: dfl: make init callback optional
  driver core: add dev_groups to all drivers

1 files changed, 3 insertions, 0 deletions

diff --git a/include/linux/device.h b/include/linux/device.h
index 6717adee33f0..47ccb2029bc3 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -262,6 +262,8 @@ enum probe_type {
  * @resume:	Called to bring a device from sleep mode.
  * @groups:	Default attributes that get created by the driver core
  *		automatically.
+ * @dev_groups:	Additional attributes attached to device instance once the
+ *		it is bound to the driver.
  * @pm:		Power management operations of the device which matched
  *		this driver.
  * @coredump:	Called when sysfs entry is written to. The device driver
@@ -296,6 +298,7 @@ struct device_driver {
 	int (*suspend) (struct device *dev, pm_message_t state);
 	int (*resume) (struct device *dev);
 	const struct attribute_group **groups;
+	const struct attribute_group **dev_groups;
 
 	const struct dev_pm_ops *pm;
 	void (*coredump) (struct device *dev);