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drivers/fmc: change registration prototype 

Permit use of either fmc_device_register_n or fmc_device_register_n_gw
depending on the type of device in use.

Signed-off-by: Federico Vaga <federico.vaga@cern.ch>
Tested-by: Pat Riehecky <riehecky@fnal.gov>
Acked-by: Alessandro Rubini <rubini@gnudd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
hifive-unleashed-5.1
Federico Vaga 2017-07-18 08:33:13 +02:00 committed by Greg Kroah-Hartman
parent 2071a3e94a
commit 15b1b0f0d8
2 changed files with 25 additions and 3 deletions
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15
drivers/fmc/fmc-core.c
View File

@ -199,7 +199,8 @@ EXPORT_SYMBOL(fmc_driver_unregister);
* When a device set is registered, all eeproms must be read
* and all FRUs must be parsed
*/
int fmc_device_register_n(struct fmc_device **devs, int n)
int fmc_device_register_n_gw(struct fmc_device **devs, int n,
struct fmc_gateware *gw)
{
struct fmc_device *fmc, **devarray;
uint32_t device_id;
@ -313,8 +314,20 @@ out:
return ret;
}
EXPORT_SYMBOL(fmc_device_register_n_gw);
int fmc_device_register_n(struct fmc_device **devs, int n)
{
return fmc_device_register_n_gw(devs, n, NULL);
}
EXPORT_SYMBOL(fmc_device_register_n);
int fmc_device_register_gw(struct fmc_device *fmc, struct fmc_gateware *gw)
{
return fmc_device_register_n_gw(&fmc, 1, gw);
}
EXPORT_SYMBOL(fmc_device_register_gw);
int fmc_device_register(struct fmc_device *fmc)
{
return fmc_device_register_n(&fmc, 1);

13
include/linux/fmc.h
View File

@ -220,14 +220,23 @@ static inline void fmc_set_drvdata(struct fmc_device *fmc, void *data)
dev_set_drvdata(&fmc->dev, data);
}
/* The 4 access points */
struct fmc_gateware {
void *bitstream;
unsigned long len;
};
/* The 5 access points */
extern int fmc_driver_register(struct fmc_driver *drv);
extern void fmc_driver_unregister(struct fmc_driver *drv);
extern int fmc_device_register(struct fmc_device *tdev);
extern int fmc_device_register_gw(struct fmc_device *tdev,
struct fmc_gateware *gw);
extern void fmc_device_unregister(struct fmc_device *tdev);
/* Two more for device sets, all driven by the same FPGA */
/* Three more for device sets, all driven by the same FPGA */
extern int fmc_device_register_n(struct fmc_device **devs, int n);
extern int fmc_device_register_n_gw(struct fmc_device **devs, int n,
struct fmc_gateware *gw);
extern void fmc_device_unregister_n(struct fmc_device **devs, int n);
/* Internal cross-calls between files; not exported to other modules */