Commit 9326eecd authored by Xu Yilun's avatar Xu Yilun Committed by Greg Kroah-Hartman
Browse files

fpga: dfl: move dfl_device_id to mod_devicetable.h 



In order to support MODULE_DEVICE_TABLE() for dfl device driver, this
patch moves struct dfl_device_id to mod_devicetable.h

Some brief description for DFL (Device Feature List) is added to make
the DFL known to the whole kernel.

Reviewed-by: default avatarTom Rix <trix@redhat.com>
Acked-by: default avatarWu Hao <hao.wu@intel.com>
Signed-off-by: default avatarXu Yilun <yilun.xu@intel.com>
Signed-off-by: default avatarWu Hao <hao.wu@intel.com>
Signed-off-by: default avatarMatthew Gerlach <matthew.gerlach@linux.intel.com>
Signed-off-by: default avatarRuss Weight <russell.h.weight@intel.com>
Signed-off-by: default avatarMoritz Fischer <mdf@kernel.org>
Link: https://lore.kernel.org/r/20210107043714.991646-5-mdf@kernel.org


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent e08b9e6d

drivers/fpga/dfl.h

+1 −12
Original line number Diff line number Diff line
@@ -22,6 +22,7 @@ 
#include <linux/interrupt.h>

#include <linux/iopoll.h>

#include <linux/io-64-nonatomic-lo-hi.h>

#include <linux/mod_devicetable.h>

#include <linux/platform_device.h>

#include <linux/slab.h>

#include <linux/uuid.h>
@@ -525,18 +526,6 @@ enum dfl_id_type { 
	DFL_ID_MAX,

};



/**

 * struct dfl_device_id -  dfl device identifier

 * @type: DFL FIU type of the device. See enum dfl_id_type.

 * @feature_id: feature identifier local to its DFL FIU type.

 * @driver_data: driver specific data.

 */

struct dfl_device_id {

	u16 type;

	u16 feature_id;

	unsigned long driver_data;

};



/**

 * struct dfl_device - represent an dfl device on dfl bus

 *

include/linux/mod_devicetable.h

+24 −0
Original line number Diff line number Diff line
@@ -846,4 +846,28 @@ struct auxiliary_device_id { 
	kernel_ulong_t driver_data;

};



/*

 * DFL (Device Feature List)

 *

 * DFL defines a linked list of feature headers within the device MMIO space to

 * provide an extensible way of adding features. Software can walk through these

 * predefined data structures to enumerate features. It is now used in the FPGA.

 * See Documentation/fpga/dfl.rst for more information.

 *

 * The dfl bus type is introduced to match the individual feature devices (dfl

 * devices) for specific dfl drivers.

 */



/**

 * struct dfl_device_id -  dfl device identifier

 * @type: DFL FIU type of the device. See enum dfl_id_type.

 * @feature_id: feature identifier local to its DFL FIU type.

 * @driver_data: driver specific data.

 */

struct dfl_device_id {

	__u16 type;

	__u16 feature_id;

	kernel_ulong_t driver_data;

};



#endif /* LINUX_MOD_DEVICETABLE_H */