1 // SPDX-License-Identifier: GPL-2.0
9  * based on pm-sh7372.c
51 	unsigned int mask = BIT(rmobile_pd->bit_shift);  in rmobile_pd_power_down()
53 	if (rmobile_pd->suspend) {  in rmobile_pd_power_down()
54 		int ret = rmobile_pd->suspend();  in rmobile_pd_power_down()
60 	if (__raw_readl(rmobile_pd->base + PSTR) & mask) {  in rmobile_pd_power_down()
62 		__raw_writel(mask, rmobile_pd->base + SPDCR);  in rmobile_pd_power_down()
64 		for (retry_count = PSTR_RETRIES; retry_count; retry_count--) {  in rmobile_pd_power_down()
65 			if (!(__raw_readl(rmobile_pd->base + SPDCR) & mask))  in rmobile_pd_power_down()
71 	pr_debug("%s: Power off, 0x%08x -> PSTR = 0x%08x\n", genpd->name, mask,  in rmobile_pd_power_down()
72 		 __raw_readl(rmobile_pd->base + PSTR));  in rmobile_pd_power_down()
79 	unsigned int mask = BIT(rmobile_pd->bit_shift);  in __rmobile_pd_power_up()
83 	if (__raw_readl(rmobile_pd->base + PSTR) & mask)  in __rmobile_pd_power_up()
86 	__raw_writel(mask, rmobile_pd->base + SWUCR);  in __rmobile_pd_power_up()
88 	for (retry_count = 2 * PSTR_RETRIES; retry_count; retry_count--) {  in __rmobile_pd_power_up()
89 		if (!(__raw_readl(rmobile_pd->base + SWUCR) & mask))  in __rmobile_pd_power_up()
97 		ret = -EIO;  in __rmobile_pd_power_up()
99 	pr_debug("%s: Power on, 0x%08x -> PSTR = 0x%08x\n",  in __rmobile_pd_power_up()
100 		 rmobile_pd->genpd.name, mask,  in __rmobile_pd_power_up()
101 		 __raw_readl(rmobile_pd->base + PSTR));  in __rmobile_pd_power_up()
113 	struct generic_pm_domain *genpd = &rmobile_pd->genpd;  in rmobile_init_pm_domain()
114 	struct dev_power_governor *gov = rmobile_pd->gov;  in rmobile_init_pm_domain()
116 	genpd->flags |= GENPD_FLAG_PM_CLK | GENPD_FLAG_ACTIVE_WAKEUP;  in rmobile_init_pm_domain()
117 	genpd->attach_dev = cpg_mstp_attach_dev;  in rmobile_init_pm_domain()
118 	genpd->detach_dev = cpg_mstp_detach_dev;  in rmobile_init_pm_domain()
120 	if (!(genpd->flags & GENPD_FLAG_ALWAYS_ON)) {  in rmobile_init_pm_domain()
121 		genpd->power_off = rmobile_pd_power_down;  in rmobile_init_pm_domain()
122 		genpd->power_on = rmobile_pd_power_up;  in rmobile_init_pm_domain()
135 	return console_suspend_enabled ? 0 : -EBUSY;  in rmobile_pd_suspend_console()
156 	{ .compatible = "arm,coresight-etm3x", .data = (void *)PD_DEBUG },
157 	{ .compatible = "renesas,dbsc-r8a73a4", .data = (void *)PD_MEMCTL, },
158 	{ .compatible = "renesas,dbsc3-r8a7740", .data = (void *)PD_MEMCTL, },
159 	{ .compatible = "renesas,sbsc-sh73a0", .data = (void *)PD_MEMCTL, },
168 	pd = of_parse_phandle(np, "power-domains", 0);  in add_special_pd()
206 		add_special_pd(np, (enum pd_types)id->data);  in get_special_pds()
231 	const char *name = pd->genpd.name;  in rmobile_setup_pm_domain()
240 		pd->genpd.flags |= GENPD_FLAG_ALWAYS_ON;  in rmobile_setup_pm_domain()
245 		pd->gov = &pm_domain_always_on_gov;  in rmobile_setup_pm_domain()
246 		pd->suspend = rmobile_pd_suspend_console;  in rmobile_setup_pm_domain()
251 		 * This domain contains the Coresight-ETM hardware block and  in rmobile_setup_pm_domain()
255 		pr_debug("PM domain %s contains Coresight-ETM\n", name);  in rmobile_setup_pm_domain()
256 		pd->genpd.flags |= GENPD_FLAG_ALWAYS_ON;  in rmobile_setup_pm_domain()
261 		 * This domain contains a memory-controller and therefore it  in rmobile_setup_pm_domain()
265 		pd->genpd.flags |= GENPD_FLAG_ALWAYS_ON;  in rmobile_setup_pm_domain()
269 		if (pd->bit_shift == ~0) {  in rmobile_setup_pm_domain()
270 			/* Top-level always-on domain */  in rmobile_setup_pm_domain()
271 			pr_debug("PM domain %s is always-on domain\n", name);  in rmobile_setup_pm_domain()
272 			pd->genpd.flags |= GENPD_FLAG_ALWAYS_ON;  in rmobile_setup_pm_domain()
291 			/* always-on domain */  in rmobile_add_pm_domains()
297 			return -ENOMEM;  in rmobile_add_pm_domains()
300 		pd->genpd.name = np->name;  in rmobile_add_pm_domains()
301 		pd->base = base;  in rmobile_add_pm_domains()
302 		pd->bit_shift = idx;  in rmobile_add_pm_domains()
306 			pm_genpd_add_subdomain(genpd_parent, &pd->genpd);  in rmobile_add_pm_domains()
307 		of_genpd_add_provider_simple(np, &pd->genpd);  in rmobile_add_pm_domains()
309 		rmobile_add_pm_domains(base, np, &pd->genpd);  in rmobile_add_pm_domains()
321 	for_each_compatible_node(np, NULL, "renesas,sysc-rmobile") {  in rmobile_init_pm_domains()
328 		pmd = of_get_child_by_name(np, "pm-domains");  in rmobile_init_pm_domains()
330 			pr_warn("%pOF lacks pm-domains node\n", np);  in rmobile_init_pm_domains()