diff options
| author | Xu Yilun <yilun.xu@intel.com> | 2020-09-07 22:23:13 +0800 |
|---|---|---|
| committer | Moritz Fischer <mdf@kernel.org> | 2020-09-09 20:28:16 -0700 |
| commit | 9ba3a0aa09fe505540a3bdd11f0da3b8e9d73055 (patch) | |
| tree | 4e04d5a91d2aaa9e0c9b06178d68dc4a31e8739d /Documentation/ABI | |
| parent | c71e805083af55e0c8eae33bb0653d0105556625 (diff) | |
fpga: dfl: create a dfl bus type to support DFL devices
A new bus type "dfl" is introduced for private features which are not
initialized by DFL feature drivers (dfl-fme & dfl-afu drivers). So these
private features could be handled by separate driver modules.
DFL feature drivers (dfl-fme, dfl-port) will create DFL devices on
enumeration. DFL drivers could be registered on this bus to match these
DFL devices. They are matched by dfl type & feature_id.
[mdf@kernel.org: Add missing Documentation part to MAINTAINERS file]
Signed-off-by: Xu Yilun <yilun.xu@intel.com>
Signed-off-by: Wu Hao <hao.wu@intel.com>
Signed-off-by: Matthew Gerlach <matthew.gerlach@linux.intel.com>
Signed-off-by: Russ Weight <russell.h.weight@intel.com>
Reviewed-by: Tom Rix <trix@redhat.com>
Acked-by: Wu Hao <hao.wu@intel.com>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
Diffstat (limited to 'Documentation/ABI')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-bus-dfl | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-bus-dfl b/Documentation/ABI/testing/sysfs-bus-dfl new file mode 100644 index 000000000000..23543be904f2 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-bus-dfl @@ -0,0 +1,15 @@ +What: /sys/bus/dfl/devices/dfl_dev.X/type +Date: Aug 2020 +KernelVersion: 5.10 +Contact: Xu Yilun <yilun.xu@intel.com> +Description: Read-only. It returns type of DFL FIU of the device. Now DFL + supports 2 FIU types, 0 for FME, 1 for PORT. + Format: 0x%x + +What: /sys/bus/dfl/devices/dfl_dev.X/feature_id +Date: Aug 2020 +KernelVersion: 5.10 +Contact: Xu Yilun <yilun.xu@intel.com> +Description: Read-only. It returns feature identifier local to its DFL FIU + type. + Format: 0x%x |