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remoteproc: tisci_proc: Add helper api for controlling core power domain 

Power domain for the remote cores needs to be handled in a right
sequence as mandated by the spec. Introduce tisci helper apis
that can control power-domains of remote cores. TISCI clients
can use this api and control the remote cores power domain instead
of hooking it to power-domain layer.

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
This commit is contained in:
Lokesh Vutla 2019-09-04 16:01:32 +05:30 committed by Tom Rini
parent 81e39fbd92
commit f7954828b8
1 changed files with 27 additions and 0 deletions
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27
drivers/remoteproc/ti_sci_proc.h
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@ -19,12 +19,14 @@
* @proc_id: processor id for the consumer remoteproc device
* @host_id: host id to pass the control over for this consumer remoteproc
* device
* @dev_id: Device ID as identified by system controller.
*/
struct ti_sci_proc {
const struct ti_sci_handle *sci;
const struct ti_sci_proc_ops *ops;
u8 proc_id;
u8 host_id;
u16 dev_id;
};
static inline int ti_sci_proc_request(struct ti_sci_proc *tsp)
@ -118,4 +120,29 @@ static inline int ti_sci_proc_set_control(struct ti_sci_proc *tsp,
return ret;
}
static inline int ti_sci_proc_power_domain_on(struct ti_sci_proc *tsp)
{
int ret;
debug("%s: dev_id = %d\n", __func__, tsp->dev_id);
ret = tsp->sci->ops.dev_ops.get_device_exclusive(tsp->sci, tsp->dev_id);
if (ret)
pr_err("Power-domain on failed for dev = %d\n", tsp->dev_id);
return ret;
}
static inline int ti_sci_proc_power_domain_off(struct ti_sci_proc *tsp)
{
int ret;
debug("%s: dev_id = %d\n", __func__, tsp->dev_id);
ret = tsp->sci->ops.dev_ops.put_device(tsp->sci, tsp->dev_id);
if (ret)
pr_err("Power-domain off failed for dev = %d\n", tsp->dev_id);
return ret;
}
#endif /* REMOTEPROC_TI_SCI_PROC_H */