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drivers/fsi: expose direct-access slave API

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Allow drivers to access the slave address ranges.

Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Christopher Bostic <cbostic@linux.vnet.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Jeremy Kerr 2017-06-06 16:08:50 -05:00 • committed by Greg Kroah-Hartman
parent 125739cbc1
commit da36cadf89
2 changed files with 36 additions and 6 deletions
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12
include/linux/fsi.h
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@ -66,6 +66,18 @@ extern void fsi_driver_unregister(struct fsi_driver *fsi_drv);
module_driver(__fsi_driver, fsi_driver_register, \
fsi_driver_unregister)
/* direct slave API */
extern int fsi_slave_claim_range(struct fsi_slave *slave,
uint32_t addr, uint32_t size);
extern void fsi_slave_release_range(struct fsi_slave *slave,
uint32_t addr, uint32_t size);
extern int fsi_slave_read(struct fsi_slave *slave, uint32_t addr,
void *val, size_t size);
extern int fsi_slave_write(struct fsi_slave *slave, uint32_t addr,
const void *val, size_t size);
extern struct bus_type fsi_bus_type;
#endif /* LINUX_FSI_H */