1 // SPDX-License-Identifier: GPL-2.0
5  * Copyright (C) 2016-2018 Texas Instruments Incorporated - https://www.ti.com/
17 #include <linux/platform_data/gpio-omap.h>
33 #include "omap-secure.h"
52 		return -ENOMEM;  in am43xx_map_scu()
60 		pr_warn("WARNING: This platform does not support off-mode, entering DeepSleep suspend.\n");  in am33xx_check_off_mode_enable()
69 	 * Check for am437x-gp-evm which has the right Hardware design to  in am43xx_check_off_mode_enable()
72 	if (of_machine_is_compatible("ti,am437x-gp-evm") && enable_off_mode)  in am43xx_check_off_mode_enable()
75 		pr_warn("WARNING: This platform does not support off-mode, entering DeepSleep suspend.\n");  in am43xx_check_off_mode_enable()
80 static int amx3_common_init(int (*idle)(u32 wfi_flags))  in amx3_common_init()
87 		return -ENODEV;  in amx3_common_init()
91 	/* CEFUSE domain can be turned off post bootup */  in amx3_common_init()
96 		pr_info("PM: Leaving EFUSE power domain active\n");  in amx3_common_init()
100 	idle_fn = idle;  in amx3_common_init()
105 static int am33xx_suspend_init(int (*idle)(u32 wfi_flags))  in am33xx_suspend_init()
113 		return -ENODEV;  in am33xx_suspend_init()
116 	ret = amx3_common_init(idle);  in am33xx_suspend_init()
121 static int am43xx_suspend_init(int (*idle)(u32 wfi_flags))  in am43xx_suspend_init()
131 	ret = amx3_common_init(idle);  in am43xx_suspend_init()
156 		pr_err("PM: GFX domain did not transition: %x\n", status);  in amx3_post_suspend_common()
169 	 * BUG: GFX_L4LS clock domain needs to be woken up to  in am33xx_suspend()
170 	 * ensure thet L4LS clock domain does not get stuck in  in am33xx_suspend()
172 	 * disabled, thereby leading to PER power domain  in am33xx_suspend()
208 	 * Note that even on systems with OP-TEE available this resume call is  in am43xx_suspend()
210 	 * is restored as the secure monitor. On systems with OP-TEE ROM will  in am43xx_suspend()
211 	 * restore OP-TEE during this call.  in am43xx_suspend()
286 	 * breaking suspend-resume  in am43xx_restore_context()
338 	devinfo.id = -1;  in amx3_common_pm_init()
347 	struct amx3_idle_state states[CPUIDLE_STATE_MAX];  in amx3_idle_init()  local
352 		state_node = of_parse_phandle(cpu_node, "cpu-idle-states", i);  in amx3_idle_init()
360 			pr_warn("%s: cpuidle states reached max possible\n",  in amx3_idle_init()
365 		states[state_count].wfi_flags = 0;  in amx3_idle_init()
367 		if (of_property_read_bool(state_node, "ti,idle-wkup-m3"))  in amx3_idle_init()
368 			states[state_count].wfi_flags |= WFI_FLAG_WAKE_M3 |  in amx3_idle_init()
376 		return -ENOMEM;  in amx3_idle_init()
379 		idle_states[i].wfi_flags = states[i].wfi_flags;  in amx3_idle_init()
389 		return -EINVAL;  in amx3_idle_enter()
392 		idle_fn(idle_state->wfi_flags);  in amx3_idle_enter()