2  * OMAP4 Power Management Routines
4  * Copyright (C) 2010-2011 Texas Instruments, Inc.
46 		pwrst->saved_state = pwrdm_read_next_pwrst(pwrst->pwrdm);  in omap4_pm_suspend()
47 		pwrst->saved_logic_state = pwrdm_read_logic_retst(pwrst->pwrdm);  in omap4_pm_suspend()
50 	/* Set targeted power domain states by suspend */  in omap4_pm_suspend()
52 		omap_set_pwrdm_state(pwrst->pwrdm, pwrst->next_state);  in omap4_pm_suspend()
53 		pwrdm_set_logic_retst(pwrst->pwrdm, PWRDM_POWER_OFF);  in omap4_pm_suspend()
57 	 * For MPUSS to hit power domain retention(CSWR or OSWR),  in omap4_pm_suspend()
58 	 * CPU0 and CPU1 power domains need to be in OFF or DORMANT state,  in omap4_pm_suspend()
59 	 * since CPU power domain CSWR is not supported by hardware  in omap4_pm_suspend()
61 	 * CPU hotplug path in system wide suspend. On OMAP4, CPU power  in omap4_pm_suspend()
69 		state = pwrdm_read_prev_pwrst(pwrst->pwrdm);  in omap4_pm_suspend()
70 		if (state > pwrst->next_state) {  in omap4_pm_suspend()
73 			       pwrst->pwrdm->name, pwrst->next_state);  in omap4_pm_suspend()
74 			ret = -1;  in omap4_pm_suspend()
76 		omap_set_pwrdm_state(pwrst->pwrdm, pwrst->saved_state);  in omap4_pm_suspend()
77 		pwrdm_set_logic_retst(pwrst->pwrdm, pwrst->saved_logic_state);  in omap4_pm_suspend()
97 		ret = -EINVAL;  in omap4_pm_enter()
130 	if (clkdm->flags & CLKDM_CAN_ENABLE_AUTO)  in clkdms_setup()
132 	else if (clkdm->flags & CLKDM_CAN_FORCE_SLEEP &&  in clkdms_setup()
133 			atomic_read(&clkdm->usecount) == 0)  in clkdms_setup()
143 	if (!pwrdm->pwrsts)  in pwrdms_setup()
147 	 * Skip CPU0 and CPU1 power domains. CPU1 is programmed  in pwrdms_setup()
151 	if (!strncmp(pwrdm->name, "cpu", 3))  in pwrdms_setup()
156 	 * Only MPUSS power domain is added in the list.  in pwrdms_setup()
158 	if (strcmp(pwrdm->name, "mpu_pwrdm"))  in pwrdms_setup()
163 		return -ENOMEM;  in pwrdms_setup()
165 	pwrst->pwrdm = pwrdm;  in pwrdms_setup()
166 	pwrst->next_state = PWRDM_POWER_RET;  in pwrdms_setup()
167 	list_add(&pwrst->node, &pwrst_list);  in pwrdms_setup()
169 	return omap_set_pwrdm_state(pwrst->pwrdm, pwrst->next_state);  in pwrdms_setup()
173  * omap_default_idle - OMAP4 default ilde routine.'
191  * omap4_pm_init - Init routine for OMAP4 PM
203 		return -ENODEV;  in omap4_pm_init()
206 		WARN(1, "Power Management not supported on OMAP4430 ES1.0\n");  in omap4_pm_init()
207 		return -ENODEV;  in omap4_pm_init()
210 	pr_err("Power Management for TI OMAP4.\n");  in omap4_pm_init()
219 	 * The dynamic dependency between MPUSS -> MEMIF and  in omap4_pm_init()
220 	 * MPUSS -> L4_PER/L3_* and DUCATI -> L3_* doesn't work as  in omap4_pm_init()
241 		pr_err("Failed to add MPUSS -> L3/EMIF/L4PER, DUCATI -> L3 "  in omap4_pm_init()