arm/mach-socfpga/pm.c

1 // SPDX-License-Identifier: GPL-2.0-only
3  *  arch/arm/mach-socfpga/pm.c
5  * Copyright (C) 2014-2015 Altera Corporation. All rights reserved.
7  * with code from pm-imx6.c
8  * Copyright 2011-2014 Freescale Semiconductor, Inc.
37 	np = of_find_compatible_node(NULL, NULL, "mmio-sram");  in socfpga_setup_ocram_self_refresh()
39 		pr_err("%s: Unable to find mmio-sram in dtb\n", __func__);  in socfpga_setup_ocram_self_refresh()
40 		return -ENODEV;  in socfpga_setup_ocram_self_refresh()
46 		ret = -ENODEV;  in socfpga_setup_ocram_self_refresh()
50 	ocram_pool = gen_pool_get(&pdev->dev, NULL);  in socfpga_setup_ocram_self_refresh()
53 		ret = -ENODEV;  in socfpga_setup_ocram_self_refresh()
60 		ret = -ENOMEM;  in socfpga_setup_ocram_self_refresh()
71 		ret = -ENOMEM;  in socfpga_setup_ocram_self_refresh()
84 		ret = -EFAULT;  in socfpga_setup_ocram_self_refresh()
87 	put_device(&pdev->dev);  in socfpga_setup_ocram_self_refresh()
99 		return -EFAULT;  in socfpga_pm_suspend()
103 	pr_debug("%s self-refresh loops request=%d exit=%d\n", __func__,  in socfpga_pm_suspend()
118 		return -EINVAL;  in socfpga_pm_enter()
137 	pr_info("SoCFPGA initialized for DDR self-refresh during suspend.\n");  in socfpga_pm_init()