diff options
Diffstat (limited to 'drivers/soc/renesas/rcar-sysc.c')
| -rw-r--r-- | drivers/soc/renesas/rcar-sysc.c | 77 |
1 files changed, 39 insertions, 38 deletions
diff --git a/drivers/soc/renesas/rcar-sysc.c b/drivers/soc/renesas/rcar-sysc.c index 225c35c79d9a..7c8da3c90011 100644 --- a/drivers/soc/renesas/rcar-sysc.c +++ b/drivers/soc/renesas/rcar-sysc.c @@ -2,7 +2,7 @@ * R-Car SYSC Power management support * * Copyright (C) 2014 Magnus Damm - * Copyright (C) 2015-2016 Glider bvba + * Copyright (C) 2015-2017 Glider bvba * * This file is subject to the terms and conditions of the GNU General Public * License. See the file "COPYING" in the main directory of this archive @@ -181,17 +181,6 @@ static int rcar_sysc_pd_power_off(struct generic_pm_domain *genpd) struct rcar_sysc_pd *pd = to_rcar_pd(genpd); pr_debug("%s: %s\n", __func__, genpd->name); - - if (pd->flags & PD_NO_CR) { - pr_debug("%s: Cannot control %s\n", __func__, genpd->name); - return -EBUSY; - } - - if (pd->flags & PD_BUSY) { - pr_debug("%s: %s busy\n", __func__, genpd->name); - return -EBUSY; - } - return rcar_sysc_power_down(&pd->ch); } @@ -200,12 +189,6 @@ static int rcar_sysc_pd_power_on(struct generic_pm_domain *genpd) struct rcar_sysc_pd *pd = to_rcar_pd(genpd); pr_debug("%s: %s\n", __func__, genpd->name); - - if (pd->flags & PD_NO_CR) { - pr_debug("%s: Cannot control %s\n", __func__, genpd->name); - return 0; - } - return rcar_sysc_power_up(&pd->ch); } @@ -223,8 +206,7 @@ static void __init rcar_sysc_pd_setup(struct rcar_sysc_pd *pd) * only be turned off if the CPU is not in use. */ pr_debug("PM domain %s contains %s\n", name, "CPU"); - pd->flags |= PD_BUSY; - gov = &pm_domain_always_on_gov; + genpd->flags |= GENPD_FLAG_ALWAYS_ON; } else if (pd->flags & PD_SCU) { /* * This domain contains an SCU and cache-controller, and @@ -232,19 +214,17 @@ static void __init rcar_sysc_pd_setup(struct rcar_sysc_pd *pd) * not in use. */ pr_debug("PM domain %s contains %s\n", name, "SCU"); - pd->flags |= PD_BUSY; - gov = &pm_domain_always_on_gov; + genpd->flags |= GENPD_FLAG_ALWAYS_ON; } else if (pd->flags & PD_NO_CR) { /* * This domain cannot be turned off. */ - pd->flags |= PD_BUSY; - gov = &pm_domain_always_on_gov; + genpd->flags |= GENPD_FLAG_ALWAYS_ON; } if (!(pd->flags & (PD_CPU | PD_SCU))) { /* Enable Clock Domain for I/O devices */ - genpd->flags = GENPD_FLAG_PM_CLK; + genpd->flags |= GENPD_FLAG_PM_CLK; if (has_cpg_mstp) { genpd->attach_dev = cpg_mstp_attach_dev; genpd->detach_dev = cpg_mstp_detach_dev; @@ -275,35 +255,33 @@ finalize: } static const struct of_device_id rcar_sysc_matches[] = { -#ifdef CONFIG_ARCH_R8A7743 +#ifdef CONFIG_SYSC_R8A7743 { .compatible = "renesas,r8a7743-sysc", .data = &r8a7743_sysc_info }, #endif -#ifdef CONFIG_ARCH_R8A7745 +#ifdef CONFIG_SYSC_R8A7745 { .compatible = "renesas,r8a7745-sysc", .data = &r8a7745_sysc_info }, #endif -#ifdef CONFIG_ARCH_R8A7779 +#ifdef CONFIG_SYSC_R8A7779 { .compatible = "renesas,r8a7779-sysc", .data = &r8a7779_sysc_info }, #endif -#ifdef CONFIG_ARCH_R8A7790 +#ifdef CONFIG_SYSC_R8A7790 { .compatible = "renesas,r8a7790-sysc", .data = &r8a7790_sysc_info }, #endif -#ifdef CONFIG_ARCH_R8A7791 +#ifdef CONFIG_SYSC_R8A7791 { .compatible = "renesas,r8a7791-sysc", .data = &r8a7791_sysc_info }, -#endif -#ifdef CONFIG_ARCH_R8A7792 - { .compatible = "renesas,r8a7792-sysc", .data = &r8a7792_sysc_info }, -#endif -#ifdef CONFIG_ARCH_R8A7793 /* R-Car M2-N is identical to R-Car M2-W w.r.t. power domains. */ { .compatible = "renesas,r8a7793-sysc", .data = &r8a7791_sysc_info }, #endif -#ifdef CONFIG_ARCH_R8A7794 +#ifdef CONFIG_SYSC_R8A7792 + { .compatible = "renesas,r8a7792-sysc", .data = &r8a7792_sysc_info }, +#endif +#ifdef CONFIG_SYSC_R8A7794 { .compatible = "renesas,r8a7794-sysc", .data = &r8a7794_sysc_info }, #endif -#ifdef CONFIG_ARCH_R8A7795 +#ifdef CONFIG_SYSC_R8A7795 { .compatible = "renesas,r8a7795-sysc", .data = &r8a7795_sysc_info }, #endif -#ifdef CONFIG_ARCH_R8A7796 +#ifdef CONFIG_SYSC_R8A7796 { .compatible = "renesas,r8a7796-sysc", .data = &r8a7796_sysc_info }, #endif { /* sentinel */ } @@ -334,6 +312,12 @@ static int __init rcar_sysc_pd_init(void) info = match->data; + if (info->init) { + error = info->init(); + if (error) + return error; + } + has_cpg_mstp = of_find_compatible_node(NULL, NULL, "renesas,cpg-mstp-clocks"); @@ -377,6 +361,11 @@ static int __init rcar_sysc_pd_init(void) const struct rcar_sysc_area *area = &info->areas[i]; struct rcar_sysc_pd *pd; + if (!area->name) { + /* Skip NULLified area */ + continue; + } + pd = kzalloc(sizeof(*pd) + strlen(area->name) + 1, GFP_KERNEL); if (!pd) { error = -ENOMEM; @@ -406,6 +395,18 @@ out_put: } early_initcall(rcar_sysc_pd_init); +void __init rcar_sysc_nullify(struct rcar_sysc_area *areas, + unsigned int num_areas, u8 id) +{ + unsigned int i; + + for (i = 0; i < num_areas; i++) + if (areas[i].isr_bit == id) { + areas[i].name = NULL; + return; + } +} + void __init rcar_sysc_init(phys_addr_t base, u32 syscier) { u32 syscimr; |