diff options
| author | Sudeep Holla <sudeep.holla@arm.com> | 2022-09-07 15:52:31 +0100 |
|---|---|---|
| committer | Sudeep Holla <sudeep.holla@arm.com> | 2022-09-08 11:30:34 +0100 |
| commit | d01387fc16421cbbf95d1fda8fe1258195396c64 (patch) | |
| tree | 59b73775b6d93f6339683775111ff9a5cb28ecbb | |
| parent | 568035b01cfb107af8d2e4bd2fb9aea22cf5b868 (diff) | |
firmware: arm_ffa: Add pointer to the ffa_dev_ops in struct ffa_dev
Currently ffa_dev_ops_get() is the way to fetch the ffa_dev_ops pointer.
It checks if the ffa_dev structure pointer is valid before returning the
ffa_dev_ops pointer.
Instead, the pointer can be made part of the ffa_dev structure and since
the core driver is incharge of creating ffa_device for each identified
partition, there is no need to check for the validity explicitly if the
pointer is embedded in the structure.
Add the pointer to the ffa_dev_ops in the ffa_dev structure itself and
initialise the same as part of creation of the device.
Link: https://lore.kernel.org/r/20220907145240.1683088-2-sudeep.holla@arm.com
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
| -rw-r--r-- | drivers/firmware/arm_ffa/bus.c | 4 | ||||
| -rw-r--r-- | drivers/firmware/arm_ffa/driver.c | 2 | ||||
| -rw-r--r-- | include/linux/arm_ffa.h | 7 |
3 files changed, 9 insertions, 4 deletions
diff --git a/drivers/firmware/arm_ffa/bus.c b/drivers/firmware/arm_ffa/bus.c index 641a91819088..69328041fbc3 100644 --- a/drivers/firmware/arm_ffa/bus.c +++ b/drivers/firmware/arm_ffa/bus.c @@ -167,7 +167,8 @@ bool ffa_device_is_valid(struct ffa_device *ffa_dev) return valid; } -struct ffa_device *ffa_device_register(const uuid_t *uuid, int vm_id) +struct ffa_device *ffa_device_register(const uuid_t *uuid, int vm_id, + const struct ffa_dev_ops *ops) { int ret; struct device *dev; @@ -183,6 +184,7 @@ struct ffa_device *ffa_device_register(const uuid_t *uuid, int vm_id) dev_set_name(&ffa_dev->dev, "arm-ffa-%04x", vm_id); ffa_dev->vm_id = vm_id; + ffa_dev->ops = ops; uuid_copy(&ffa_dev->uuid, uuid); ret = device_register(&ffa_dev->dev); diff --git a/drivers/firmware/arm_ffa/driver.c b/drivers/firmware/arm_ffa/driver.c index ec731e9e942b..213665e5ad0e 100644 --- a/drivers/firmware/arm_ffa/driver.c +++ b/drivers/firmware/arm_ffa/driver.c @@ -688,7 +688,7 @@ static void ffa_setup_partitions(void) * as part of the discovery API, we need to pass the * discovered UUID here instead. */ - ffa_dev = ffa_device_register(&uuid_null, tpbuf->id); + ffa_dev = ffa_device_register(&uuid_null, tpbuf->id, &ffa_ops); if (!ffa_dev) { pr_err("%s: failed to register partition ID 0x%x\n", __func__, tpbuf->id); diff --git a/include/linux/arm_ffa.h b/include/linux/arm_ffa.h index e5c76c1ef9ed..91b47e42b73d 100644 --- a/include/linux/arm_ffa.h +++ b/include/linux/arm_ffa.h @@ -17,6 +17,7 @@ struct ffa_device { bool mode_32bit; uuid_t uuid; struct device dev; + const struct ffa_dev_ops *ops; }; #define to_ffa_dev(d) container_of(d, struct ffa_device, dev) @@ -47,7 +48,8 @@ static inline void *ffa_dev_get_drvdata(struct ffa_device *fdev) } #if IS_REACHABLE(CONFIG_ARM_FFA_TRANSPORT) -struct ffa_device *ffa_device_register(const uuid_t *uuid, int vm_id); +struct ffa_device *ffa_device_register(const uuid_t *uuid, int vm_id, + const struct ffa_dev_ops *ops); void ffa_device_unregister(struct ffa_device *ffa_dev); int ffa_driver_register(struct ffa_driver *driver, struct module *owner, const char *mod_name); @@ -57,7 +59,8 @@ const struct ffa_dev_ops *ffa_dev_ops_get(struct ffa_device *dev); #else static inline -struct ffa_device *ffa_device_register(const uuid_t *uuid, int vm_id) +struct ffa_device *ffa_device_register(const uuid_t *uuid, int vm_id, + const struct ffa_dev_ops *ops) { return NULL; } |