arm/mach-omap2/clockdomain.c

181  * _clkdm_add_wkdep - add a wakeup dependency from clkdm2 to clkdm1 (lockless)
182  * @clkdm1: wake this struct clockdomain * up (dependent)
186  * @clkdm1. Implemented in hardware on the OMAP, this feature is
187  * designed to reduce wakeup latency of the dependent clockdomain @clkdm1.
189  * -ENOENT if @clkdm2 cannot wake up clkdm1 in hardware, or 0 upon
192 static int _clkdm_add_wkdep(struct clockdomain *clkdm1,
198 	if (!clkdm1 || !clkdm2)
201 	cd = _clkdm_deps_lookup(clkdm2, clkdm1->wkdep_srcs);
210 			 clkdm1->name, clkdm2->name);
217 			 clkdm1->name, clkdm2->name);
219 		ret = arch_clkdm->clkdm_add_wkdep(clkdm1, clkdm2);
226  * _clkdm_del_wkdep - remove a wakeup dep from clkdm2 to clkdm1 (lockless)
227  * @clkdm1: wake this struct clockdomain * up (dependent)
230  * Remove a wakeup dependency causing @clkdm1 to wake up when @clkdm2
232  * pointers, -ENOENT if @clkdm2 cannot wake up clkdm1 in hardware, or
235 static int _clkdm_del_wkdep(struct clockdomain *clkdm1,
241 	if (!clkdm1 || !clkdm2)
244 	cd = _clkdm_deps_lookup(clkdm2, clkdm1->wkdep_srcs);
253 			 clkdm1->name, clkdm2->name);
260 			 clkdm1->name, clkdm2->name);
262 		ret = arch_clkdm->clkdm_del_wkdep(clkdm1, clkdm2);
269  * _clkdm_add_sleepdep - add a sleep dependency from clkdm2 to clkdm1 (lockless)
270  * @clkdm1: prevent this struct clockdomain * from sleeping (dependent)
273  * Prevent @clkdm1 from automatically going inactive (and then to
280 static int _clkdm_add_sleepdep(struct clockdomain *clkdm1,
286 	if (!clkdm1 || !clkdm2)
289 	cd = _clkdm_deps_lookup(clkdm2, clkdm1->sleepdep_srcs);
298 			 clkdm1->name, clkdm2->name);
305 			 clkdm1->name, clkdm2->name);
307 		ret = arch_clkdm->clkdm_add_sleepdep(clkdm1, clkdm2);
314  * _clkdm_del_sleepdep - remove a sleep dep from clkdm2 to clkdm1 (lockless)
315  * @clkdm1: prevent this struct clockdomain * from sleeping (dependent)
318  * Allow @clkdm1 to automatically go inactive (and then to retention or
325 static int _clkdm_del_sleepdep(struct clockdomain *clkdm1,
331 	if (!clkdm1 || !clkdm2)
334 	cd = _clkdm_deps_lookup(clkdm2, clkdm1->sleepdep_srcs);
343 			 clkdm1->name, clkdm2->name);
350 			 clkdm1->name, clkdm2->name);
352 		ret = arch_clkdm->clkdm_del_sleepdep(clkdm1, clkdm2);
582  * clkdm_add_wkdep - add a wakeup dependency from clkdm2 to clkdm1
583  * @clkdm1: wake this struct clockdomain * up (dependent)
587  * @clkdm1. Implemented in hardware on the OMAP, this feature is
588  * designed to reduce wakeup latency of the dependent clockdomain @clkdm1.
590  * -ENOENT if @clkdm2 cannot wake up clkdm1 in hardware, or 0 upon
593 int clkdm_add_wkdep(struct clockdomain *clkdm1, struct clockdomain *clkdm2)
598 	if (!clkdm1 || !clkdm2)
601 	cd = _clkdm_deps_lookup(clkdm2, clkdm1->wkdep_srcs);
606 	ret = _clkdm_add_wkdep(clkdm1, clkdm2);
613  * clkdm_del_wkdep - remove a wakeup dependency from clkdm2 to clkdm1
614  * @clkdm1: wake this struct clockdomain * up (dependent)
617  * Remove a wakeup dependency causing @clkdm1 to wake up when @clkdm2
619  * pointers, -ENOENT if @clkdm2 cannot wake up clkdm1 in hardware, or
622 int clkdm_del_wkdep(struct clockdomain *clkdm1, struct clockdomain *clkdm2)
627 	if (!clkdm1 || !clkdm2)
630 	cd = _clkdm_deps_lookup(clkdm2, clkdm1->wkdep_srcs);
635 	ret = _clkdm_del_wkdep(clkdm1, clkdm2);
642  * clkdm_read_wkdep - read wakeup dependency state from clkdm2 to clkdm1
643  * @clkdm1: wake this struct clockdomain * up (dependent)
646  * Return 1 if a hardware wakeup dependency exists wherein @clkdm1 will be
655 int clkdm_read_wkdep(struct clockdomain *clkdm1, struct clockdomain *clkdm2)
660 	if (!clkdm1 || !clkdm2)
663 	cd = _clkdm_deps_lookup(clkdm2, clkdm1->wkdep_srcs);
672 			 clkdm1->name, clkdm2->name);
677 	return arch_clkdm->clkdm_read_wkdep(clkdm1, clkdm2);
702  * clkdm_add_sleepdep - add a sleep dependency from clkdm2 to clkdm1
703  * @clkdm1: prevent this struct clockdomain * from sleeping (dependent)
706  * Prevent @clkdm1 from automatically going inactive (and then to
713 int clkdm_add_sleepdep(struct clockdomain *clkdm1, struct clockdomain *clkdm2)
718 	if (!clkdm1 || !clkdm2)
721 	cd = _clkdm_deps_lookup(clkdm2, clkdm1->wkdep_srcs);
726 	ret = _clkdm_add_sleepdep(clkdm1, clkdm2);
733  * clkdm_del_sleepdep - remove a sleep dependency from clkdm2 to clkdm1
734  * @clkdm1: prevent this struct clockdomain * from sleeping (dependent)
737  * Allow @clkdm1 to automatically go inactive (and then to retention or
744 int clkdm_del_sleepdep(struct clockdomain *clkdm1, struct clockdomain *clkdm2)
749 	if (!clkdm1 || !clkdm2)
752 	cd = _clkdm_deps_lookup(clkdm2, clkdm1->wkdep_srcs);
757 	ret = _clkdm_del_sleepdep(clkdm1, clkdm2);
764  * clkdm_read_sleepdep - read sleep dependency state from clkdm2 to clkdm1
765  * @clkdm1: prevent this struct clockdomain * from sleeping (dependent)
768  * Return 1 if a hardware sleep dependency exists wherein @clkdm1 will
770  * 0 if @clkdm1's automatic power state inactivity transition is independent
779 int clkdm_read_sleepdep(struct clockdomain *clkdm1, struct clockdomain *clkdm2)
784 	if (!clkdm1 || !clkdm2)
787 	cd = _clkdm_deps_lookup(clkdm2, clkdm1->sleepdep_srcs);
796 			 clkdm1->name, clkdm2->name);
801 	return arch_clkdm->clkdm_read_sleepdep(clkdm1, clkdm2);