Commit d06b004b authored by Wu Hao's avatar Wu Hao Committed by Greg Kroah-Hartman
Browse files

fpga: dfl: add dfl_fpga_check_port_id function. 



This patch adds one common function in DFL framework. It uses
port_ops get_id callback to get port id and compare it with given
value. This function could be used as match function of the
dfl_fpga_cdev_find_port function.

Signed-off-by: default avatarWu Hao <hao.wu@intel.com>
Acked-by: default avatarAlan Tull <atull@kernel.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 6e8fd6e4

drivers/fpga/dfl.c

+22 −0
Original line number Diff line number Diff line
@@ -215,6 +215,28 @@ void dfl_fpga_port_ops_del(struct dfl_fpga_port_ops *ops) 
}

EXPORT_SYMBOL_GPL(dfl_fpga_port_ops_del);



/**

 * dfl_fpga_check_port_id - check the port id

 * @pdev: port platform device.

 * @pport_id: port id to compare.

 *

 * Return: 1 if port device matches with given port id, otherwise 0.

 */

int dfl_fpga_check_port_id(struct platform_device *pdev, void *pport_id)

{

	struct dfl_fpga_port_ops *port_ops = dfl_fpga_port_ops_get(pdev);

	int port_id;



	if (!port_ops || !port_ops->get_id)

		return 0;



	port_id = port_ops->get_id(pdev);

	dfl_fpga_port_ops_put(port_ops);



	return port_id == *(int *)pport_id;

}

EXPORT_SYMBOL_GPL(dfl_fpga_check_port_id);



/**

 * dfl_fpga_dev_feature_uinit - uinit for sub features of dfl feature device

 * @pdev: feature device.

drivers/fpga/dfl.h

+1 −0
Original line number Diff line number Diff line
@@ -151,6 +151,7 @@ void dfl_fpga_port_ops_add(struct dfl_fpga_port_ops *ops); 
void dfl_fpga_port_ops_del(struct dfl_fpga_port_ops *ops);

struct dfl_fpga_port_ops *dfl_fpga_port_ops_get(struct platform_device *pdev);

void dfl_fpga_port_ops_put(struct dfl_fpga_port_ops *ops);

int dfl_fpga_check_port_id(struct platform_device *pdev, void *pport_id);



/**

 * struct dfl_feature_driver - sub feature's driver

CRA Git | Maintained and supported by SUSTech CRA and CCSE