1 /* 2 * Runtime PM support code 3 * 4 * Copyright (C) 2009-2010 Magnus Damm 5 * 6 * This file is subject to the terms and conditions of the GNU General Public 7 * License. See the file "COPYING" in the main directory of this archive 8 * for more details. 9 */ 10 11 #include <linux/init.h> 12 #include <linux/kernel.h> 13 #include <linux/io.h> 14 #include <linux/pm_runtime.h> 15 #include <linux/pm_domain.h> 16 #include <linux/pm_clock.h> 17 #include <linux/platform_device.h> 18 #include <linux/clk.h> 19 #include <linux/sh_clk.h> 20 #include <linux/bitmap.h> 21 #include <linux/slab.h> 22 23 static struct dev_pm_domain default_pm_domain = { 24 .ops = { 25 USE_PM_CLK_RUNTIME_OPS 26 USE_PLATFORM_PM_SLEEP_OPS 27 }, 28 }; 29 30 static struct pm_clk_notifier_block platform_bus_notifier = { 31 .pm_domain = &default_pm_domain, 32 .con_ids = { NULL, }, 33 }; 34 35 static int __init sh_pm_runtime_init(void) 36 { 37 if (IS_ENABLED(CONFIG_ARCH_SHMOBILE_MULTI)) { 38 if (!of_machine_is_compatible("renesas,emev2") && 39 !of_machine_is_compatible("renesas,r7s72100") && 40 #ifndef CONFIG_PM_GENERIC_DOMAINS_OF 41 !of_machine_is_compatible("renesas,r8a73a4") && 42 !of_machine_is_compatible("renesas,r8a7740") && 43 !of_machine_is_compatible("renesas,sh73a0") && 44 #endif 45 !of_machine_is_compatible("renesas,r8a7778") && 46 !of_machine_is_compatible("renesas,r8a7779") && 47 !of_machine_is_compatible("renesas,r8a7790") && 48 !of_machine_is_compatible("renesas,r8a7791") && 49 !of_machine_is_compatible("renesas,r8a7792") && 50 !of_machine_is_compatible("renesas,r8a7793") && 51 !of_machine_is_compatible("renesas,r8a7794")) 52 return 0; 53 } 54 55 pm_clk_add_notifier(&platform_bus_type, &platform_bus_notifier); 56 return 0; 57 } 58 core_initcall(sh_pm_runtime_init); 59