1 // SPDX-License-Identifier: GPL-2.0
9  * based on pm-sh7372.c
49 	unsigned int mask = BIT(rmobile_pd->bit_shift);  in rmobile_pd_power_down()
52 	if (rmobile_pd->suspend) {  in rmobile_pd_power_down()
53 		int ret = rmobile_pd->suspend();  in rmobile_pd_power_down()
59 	if (readl(rmobile_pd->base + PSTR) & mask) {  in rmobile_pd_power_down()
60 		writel(mask, rmobile_pd->base + SPDCR);  in rmobile_pd_power_down()
62 		readl_poll_timeout_atomic(rmobile_pd->base + SPDCR, val,  in rmobile_pd_power_down()
66 	pr_debug("%s: Power off, 0x%08x -> PSTR = 0x%08x\n", genpd->name, mask,  in rmobile_pd_power_down()
67 		 readl(rmobile_pd->base + PSTR));  in rmobile_pd_power_down()
74 	unsigned int val, mask = BIT(rmobile_pd->bit_shift);  in __rmobile_pd_power_up()
77 	if (readl(rmobile_pd->base + PSTR) & mask)  in __rmobile_pd_power_up()
80 	writel(mask, rmobile_pd->base + SWUCR);  in __rmobile_pd_power_up()
82 	ret = readl_poll_timeout_atomic(rmobile_pd->base + SWUCR, val,  in __rmobile_pd_power_up()
86 	pr_debug("%s: Power on, 0x%08x -> PSTR = 0x%08x\n",  in __rmobile_pd_power_up()
87 		 rmobile_pd->genpd.name, mask,  in __rmobile_pd_power_up()
88 		 readl(rmobile_pd->base + PSTR));  in __rmobile_pd_power_up()
100 	struct generic_pm_domain *genpd = &rmobile_pd->genpd;  in rmobile_init_pm_domain()
101 	struct dev_power_governor *gov = rmobile_pd->gov;  in rmobile_init_pm_domain()
103 	genpd->flags |= GENPD_FLAG_PM_CLK | GENPD_FLAG_ACTIVE_WAKEUP;  in rmobile_init_pm_domain()
104 	genpd->attach_dev = cpg_mstp_attach_dev;  in rmobile_init_pm_domain()
105 	genpd->detach_dev = cpg_mstp_detach_dev;  in rmobile_init_pm_domain()
107 	if (!(genpd->flags & GENPD_FLAG_ALWAYS_ON)) {  in rmobile_init_pm_domain()
108 		genpd->power_off = rmobile_pd_power_down;  in rmobile_init_pm_domain()
109 		genpd->power_on = rmobile_pd_power_up;  in rmobile_init_pm_domain()
122 	return console_suspend_enabled ? 0 : -EBUSY;  in rmobile_pd_suspend_console()
143 	{ .compatible = "arm,coresight-etm3x", .data = (void *)PD_DEBUG },
144 	{ .compatible = "renesas,dbsc-r8a73a4", .data = (void *)PD_MEMCTL, },
145 	{ .compatible = "renesas,dbsc3-r8a7740", .data = (void *)PD_MEMCTL, },
146 	{ .compatible = "renesas,sbsc-sh73a0", .data = (void *)PD_MEMCTL, },
155 	pd = of_parse_phandle(np, "power-domains", 0);  in add_special_pd()
193 		add_special_pd(np, (uintptr_t)id->data);  in get_special_pds()
218 	const char *name = pd->genpd.name;  in rmobile_setup_pm_domain()
224 		 * only be turned off if the CPU is not in use.  in rmobile_setup_pm_domain()
227 		pd->genpd.flags |= GENPD_FLAG_ALWAYS_ON;  in rmobile_setup_pm_domain()
232 		pd->gov = &pm_domain_always_on_gov;  in rmobile_setup_pm_domain()
233 		pd->suspend = rmobile_pd_suspend_console;  in rmobile_setup_pm_domain()
238 		 * This domain contains the Coresight-ETM hardware block and  in rmobile_setup_pm_domain()
239 		 * therefore it should only be turned off if the debug module  in rmobile_setup_pm_domain()
242 		pr_debug("PM domain %s contains Coresight-ETM\n", name);  in rmobile_setup_pm_domain()
243 		pd->genpd.flags |= GENPD_FLAG_ALWAYS_ON;  in rmobile_setup_pm_domain()
248 		 * This domain contains a memory-controller and therefore it  in rmobile_setup_pm_domain()
249 		 * should only be turned off if memory is not in use.  in rmobile_setup_pm_domain()
252 		pd->genpd.flags |= GENPD_FLAG_ALWAYS_ON;  in rmobile_setup_pm_domain()
256 		if (pd->bit_shift == ~0) {  in rmobile_setup_pm_domain()
257 			/* Top-level always-on domain */  in rmobile_setup_pm_domain()
258 			pr_debug("PM domain %s is always-on domain\n", name);  in rmobile_setup_pm_domain()
259 			pd->genpd.flags |= GENPD_FLAG_ALWAYS_ON;  in rmobile_setup_pm_domain()
276 			/* always-on domain */  in rmobile_add_pm_domains()
281 			return -ENOMEM;  in rmobile_add_pm_domains()
283 		pd->genpd.name = np->name;  in rmobile_add_pm_domains()
284 		pd->base = base;  in rmobile_add_pm_domains()
285 		pd->bit_shift = idx;  in rmobile_add_pm_domains()
289 			pm_genpd_add_subdomain(genpd_parent, &pd->genpd);  in rmobile_add_pm_domains()
290 		of_genpd_add_provider_simple(np, &pd->genpd);  in rmobile_add_pm_domains()
292 		rmobile_add_pm_domains(base, np, &pd->genpd);  in rmobile_add_pm_domains()
304 	for_each_compatible_node(np, NULL, "renesas,sysc-rmobile") {  in rmobile_init_pm_domains()
311 		pmd = of_get_child_by_name(np, "pm-domains");  in rmobile_init_pm_domains()
314 			pr_warn("%pOF lacks pm-domains node\n", np);  in rmobile_init_pm_domains()