diff options
Diffstat (limited to 'drivers/power/reset/xgene-reboot.c')
| -rw-r--r-- | drivers/power/reset/xgene-reboot.c | 50 |
1 files changed, 12 insertions, 38 deletions
diff --git a/drivers/power/reset/xgene-reboot.c b/drivers/power/reset/xgene-reboot.c index 73c3d93e5318..b5eee19bac42 100644 --- a/drivers/power/reset/xgene-reboot.c +++ b/drivers/power/reset/xgene-reboot.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * AppliedMicro X-Gene SoC Reboot Driver * @@ -5,21 +6,6 @@ * Author: Feng Kan <fkan@apm.com> * Author: Loc Ho <lho@apm.com> * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA - * * This driver provides system reboot functionality for APM X-Gene SoC. * For system shutdown, this is board specify. If a board designer * implements GPIO shutdown, use the gpio-poweroff.c driver. @@ -27,7 +13,7 @@ #include <linux/delay.h> #include <linux/io.h> #include <linux/notifier.h> -#include <linux/of_device.h> +#include <linux/of.h> #include <linux/of_address.h> #include <linux/platform_device.h> #include <linux/reboot.h> @@ -36,17 +22,13 @@ struct xgene_reboot_context { struct device *dev; - void *csr; + void __iomem *csr; u32 mask; - struct notifier_block restart_handler; }; -static int xgene_restart_handler(struct notifier_block *this, - unsigned long mode, void *cmd) +static int xgene_restart_handler(struct sys_off_data *data) { - struct xgene_reboot_context *ctx = - container_of(this, struct xgene_reboot_context, - restart_handler); + struct xgene_reboot_context *ctx = data->cb_data; /* Issue the reboot */ writel(ctx->mask, ctx->csr); @@ -68,23 +50,20 @@ static int xgene_reboot_probe(struct platform_device *pdev) if (!ctx) return -ENOMEM; - ctx->csr = of_iomap(dev->of_node, 0); - if (!ctx->csr) { + ctx->csr = devm_platform_ioremap_resource(pdev, 0); + if (IS_ERR(ctx->csr)) { dev_err(dev, "can not map resource\n"); - return -ENODEV; + return PTR_ERR(ctx->csr); } if (of_property_read_u32(dev->of_node, "mask", &ctx->mask)) ctx->mask = 0xFFFFFFFF; ctx->dev = dev; - ctx->restart_handler.notifier_call = xgene_restart_handler; - ctx->restart_handler.priority = 128; - err = register_restart_handler(&ctx->restart_handler); - if (err) { - iounmap(ctx->csr); + err = devm_register_sys_off_handler(dev, SYS_OFF_MODE_RESTART, 128, + xgene_restart_handler, ctx); + if (err) dev_err(dev, "cannot register restart handler (err=%d)\n", err); - } return err; } @@ -101,9 +80,4 @@ static struct platform_driver xgene_reboot_driver = { .of_match_table = xgene_reboot_of_match, }, }; - -static int __init xgene_reboot_init(void) -{ - return platform_driver_register(&xgene_reboot_driver); -} -device_initcall(xgene_reboot_init); +builtin_platform_driver(xgene_reboot_driver); |