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()
51 	if (rmobile_pd->suspend) {  in rmobile_pd_power_down()
52 		int ret = rmobile_pd->suspend();  in rmobile_pd_power_down()
58 	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 		for (retry_count = PSTR_RETRIES; retry_count; retry_count--) {  in rmobile_pd_power_down()
63 			if (!(readl(rmobile_pd->base + SPDCR) & mask))  in rmobile_pd_power_down()
69 	pr_debug("%s: Power off, 0x%08x -> PSTR = 0x%08x\n", genpd->name, mask,  in rmobile_pd_power_down()
70 		 readl(rmobile_pd->base + PSTR));  in rmobile_pd_power_down()
77 	unsigned int mask = BIT(rmobile_pd->bit_shift);  in __rmobile_pd_power_up()
81 	if (readl(rmobile_pd->base + PSTR) & mask)  in __rmobile_pd_power_up()
84 	writel(mask, rmobile_pd->base + SWUCR);  in __rmobile_pd_power_up()
86 	for (retry_count = 2 * PSTR_RETRIES; retry_count; retry_count--) {  in __rmobile_pd_power_up()
87 		if (!(readl(rmobile_pd->base + SWUCR) & mask))  in __rmobile_pd_power_up()
95 		ret = -EIO;  in __rmobile_pd_power_up()
97 	pr_debug("%s: Power on, 0x%08x -> PSTR = 0x%08x\n",  in __rmobile_pd_power_up()
98 		 rmobile_pd->genpd.name, mask,  in __rmobile_pd_power_up()
99 		 readl(rmobile_pd->base + PSTR));  in __rmobile_pd_power_up()
111 	struct generic_pm_domain *genpd = &rmobile_pd->genpd;  in rmobile_init_pm_domain()
112 	struct dev_power_governor *gov = rmobile_pd->gov;  in rmobile_init_pm_domain()
114 	genpd->flags |= GENPD_FLAG_PM_CLK | GENPD_FLAG_ACTIVE_WAKEUP;  in rmobile_init_pm_domain()
115 	genpd->attach_dev = cpg_mstp_attach_dev;  in rmobile_init_pm_domain()
116 	genpd->detach_dev = cpg_mstp_detach_dev;  in rmobile_init_pm_domain()
118 	if (!(genpd->flags & GENPD_FLAG_ALWAYS_ON)) {  in rmobile_init_pm_domain()
119 		genpd->power_off = rmobile_pd_power_down;  in rmobile_init_pm_domain()
120 		genpd->power_on = rmobile_pd_power_up;  in rmobile_init_pm_domain()
133 	return console_suspend_enabled ? 0 : -EBUSY;  in rmobile_pd_suspend_console()
154 	{ .compatible = "arm,coresight-etm3x", .data = (void *)PD_DEBUG },
155 	{ .compatible = "renesas,dbsc-r8a73a4", .data = (void *)PD_MEMCTL, },
156 	{ .compatible = "renesas,dbsc3-r8a7740", .data = (void *)PD_MEMCTL, },
157 	{ .compatible = "renesas,sbsc-sh73a0", .data = (void *)PD_MEMCTL, },
166 	pd = of_parse_phandle(np, "power-domains", 0);  in add_special_pd()
204 		add_special_pd(np, (enum pd_types)id->data);  in get_special_pds()
229 	const char *name = pd->genpd.name;  in rmobile_setup_pm_domain()
238 		pd->genpd.flags |= GENPD_FLAG_ALWAYS_ON;  in rmobile_setup_pm_domain()
243 		pd->gov = &pm_domain_always_on_gov;  in rmobile_setup_pm_domain()
244 		pd->suspend = rmobile_pd_suspend_console;  in rmobile_setup_pm_domain()
249 		 * This domain contains the Coresight-ETM hardware block and  in rmobile_setup_pm_domain()
253 		pr_debug("PM domain %s contains Coresight-ETM\n", name);  in rmobile_setup_pm_domain()
254 		pd->genpd.flags |= GENPD_FLAG_ALWAYS_ON;  in rmobile_setup_pm_domain()
259 		 * This domain contains a memory-controller and therefore it  in rmobile_setup_pm_domain()
263 		pd->genpd.flags |= GENPD_FLAG_ALWAYS_ON;  in rmobile_setup_pm_domain()
267 		if (pd->bit_shift == ~0) {  in rmobile_setup_pm_domain()
268 			/* Top-level always-on domain */  in rmobile_setup_pm_domain()
269 			pr_debug("PM domain %s is always-on domain\n", name);  in rmobile_setup_pm_domain()
270 			pd->genpd.flags |= GENPD_FLAG_ALWAYS_ON;  in rmobile_setup_pm_domain()
289 			/* always-on domain */  in rmobile_add_pm_domains()
295 			return -ENOMEM;  in rmobile_add_pm_domains()
298 		pd->genpd.name = np->name;  in rmobile_add_pm_domains()
299 		pd->base = base;  in rmobile_add_pm_domains()
300 		pd->bit_shift = idx;  in rmobile_add_pm_domains()
304 			pm_genpd_add_subdomain(genpd_parent, &pd->genpd);  in rmobile_add_pm_domains()
305 		of_genpd_add_provider_simple(np, &pd->genpd);  in rmobile_add_pm_domains()
307 		rmobile_add_pm_domains(base, np, &pd->genpd);  in rmobile_add_pm_domains()
319 	for_each_compatible_node(np, NULL, "renesas,sysc-rmobile") {  in rmobile_init_pm_domains()
326 		pmd = of_get_child_by_name(np, "pm-domains");  in rmobile_init_pm_domains()
329 			pr_warn("%pOF lacks pm-domains node\n", np);  in rmobile_init_pm_domains()
346 		fwnode_dev_initialized(&np->fwnode, true);  in rmobile_init_pm_domains()