arm/mach-keystone/psc.c

1 // SPDX-License-Identifier: GPL-2.0+
5  * (C) Copyright 2012-2014
16  * psc_delay() - delay for psc
27  * psc_wait() - Wait for end of transitional state
34  * Return: 0 when the domain is free. Returns -1 if a timeout occurred waiting
45 	 * It's still remotely possible that the hardware state machines  in psc_wait()
59 		return -1;  in psc_wait()
65  * psc_get_domain_num() - Get the domain number
80  * psc_set_state() - powers up/down a module
85  * required. No action is taken it the module is already powered up/down.
90  * Return: 0 on success, -1 if the module can't be powered up, or if there is a
110 	/* Wait for the status of the domain/module to be non-transitional */  in psc_set_state()
112 		return -1;  in psc_set_state()
145  * psc_enable_module() - power up a module
149  * if required. No action is taken it the module is already powered up.
151  * Return: 0 on success, -1 if the module can't be powered up, or
168  * psc_disable_module() - Power down a module
171  * Return: 0 on success, -1 on failure or timeout.
188  * psc_set_reset_iso() - Set the reset isolation bit in mdctl
216  * psc_disable_domain() - Disable a power domain
237  * psc_module_keep_in_reset_enabled() - Keep module in enabled,in-reset state
284 		timeout--;  in psc_module_keep_in_reset_enabled()
290 		return -ETIMEDOUT;  in psc_module_keep_in_reset_enabled()
296  * psc_module_release_from_reset() - Release the module from reset
313 	/* Should be set to 1 to de-assert Local reset */  in psc_module_release_from_reset()
328 		timeout--;  in psc_module_release_from_reset()
334 		return -ETIMEDOUT;  in psc_module_release_from_reset()