diff options
Diffstat (limited to 'drivers/power/reset/keystone-reset.c')
| -rw-r--r-- | drivers/power/reset/keystone-reset.c | 32 |
1 files changed, 9 insertions, 23 deletions
diff --git a/drivers/power/reset/keystone-reset.c b/drivers/power/reset/keystone-reset.c index 09380857a1c5..d9268d150e1f 100644 --- a/drivers/power/reset/keystone-reset.c +++ b/drivers/power/reset/keystone-reset.c @@ -1,24 +1,21 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * TI keystone reboot driver * - * Copyright (C) 2014 Texas Instruments Incorporated. http://www.ti.com/ + * Copyright (C) 2014 Texas Instruments Incorporated. https://www.ti.com/ * * Author: Ivan Khoronzhuk <ivan.khoronzhuk@ti.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #include <linux/io.h> #include <linux/module.h> #include <linux/notifier.h> +#include <linux/platform_device.h> #include <linux/reboot.h> #include <linux/regmap.h> #include <linux/mfd/syscon.h> -#include <linux/of_platform.h> +#include <linux/of.h> -#define RSTYPE_RG 0x0 #define RSCTRL_RG 0x4 #define RSCFG_RG 0x8 #define RSISO_RG 0xc @@ -30,7 +27,6 @@ #define RSMUX_OMODE_MASK 0xe #define RSMUX_OMODE_RESET_ON 0xa #define RSMUX_OMODE_RESET_OFF 0x0 -#define RSMUX_LOCK_MASK 0x1 #define RSMUX_LOCK_SET 0x1 #define RSCFG_RSTYPE_SOFT 0x300f @@ -74,6 +70,7 @@ static const struct of_device_id rsctrl_of_match[] = { {.compatible = "ti,keystone-reset", }, {}, }; +MODULE_DEVICE_TABLE(of, rsctrl_of_match); static int rsctrl_probe(struct platform_device *pdev) { @@ -90,26 +87,16 @@ static int rsctrl_probe(struct platform_device *pdev) return -ENODEV; /* get regmaps */ - pllctrl_regs = syscon_regmap_lookup_by_phandle(np, "ti,syscon-pll"); + pllctrl_regs = syscon_regmap_lookup_by_phandle_args(np, "ti,syscon-pll", + 1, &rspll_offset); if (IS_ERR(pllctrl_regs)) return PTR_ERR(pllctrl_regs); - devctrl_regs = syscon_regmap_lookup_by_phandle(np, "ti,syscon-dev"); + devctrl_regs = syscon_regmap_lookup_by_phandle_args(np, "ti,syscon-dev", + 1, &rsmux_offset); if (IS_ERR(devctrl_regs)) return PTR_ERR(devctrl_regs); - ret = of_property_read_u32_index(np, "ti,syscon-pll", 1, &rspll_offset); - if (ret) { - dev_err(dev, "couldn't read the reset pll offset!\n"); - return -EINVAL; - } - - ret = of_property_read_u32_index(np, "ti,syscon-dev", 1, &rsmux_offset); - if (ret) { - dev_err(dev, "couldn't read the rsmux offset!\n"); - return -EINVAL; - } - /* set soft/hard reset */ val = of_property_read_bool(np, "ti,soft-reset"); val = val ? RSCFG_RSTYPE_SOFT : RSCFG_RSTYPE_HARD; @@ -171,5 +158,4 @@ module_platform_driver(rsctrl_driver); MODULE_AUTHOR("Ivan Khoronzhuk <ivan.khoronzhuk@ti.com>"); MODULE_DESCRIPTION("Texas Instruments keystone reset driver"); -MODULE_LICENSE("GPL v2"); MODULE_ALIAS("platform:" KBUILD_MODNAME); |