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path: root/drivers/rtc/rtc-sunxi.c
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Diffstat (limited to 'drivers/rtc/rtc-sunxi.c')
-rw-r--r--drivers/rtc/rtc-sunxi.c35
1 files changed, 4 insertions, 31 deletions
diff --git a/drivers/rtc/rtc-sunxi.c b/drivers/rtc/rtc-sunxi.c
index 21865d3d8fe8..5cab9953c44f 100644
--- a/drivers/rtc/rtc-sunxi.c
+++ b/drivers/rtc/rtc-sunxi.c
@@ -1,21 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* An RTC driver for Allwinner A10/A20
*
* Copyright (c) 2013, Carlo Caione <carlo.caione@gmail.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.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include <linux/delay.h>
@@ -27,8 +14,6 @@
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/of.h>
-#include <linux/of_address.h>
-#include <linux/of_device.h>
#include <linux/platform_device.h>
#include <linux/rtc.h>
#include <linux/types.h>
@@ -435,7 +420,6 @@ MODULE_DEVICE_TABLE(of, sunxi_rtc_dt_ids);
static int sunxi_rtc_probe(struct platform_device *pdev)
{
struct sunxi_rtc_dev *chip;
- struct resource *res;
int ret;
chip = devm_kzalloc(&pdev->dev, sizeof(*chip), GFP_KERNEL);
@@ -449,16 +433,13 @@ static int sunxi_rtc_probe(struct platform_device *pdev)
if (IS_ERR(chip->rtc))
return PTR_ERR(chip->rtc);
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- chip->base = devm_ioremap_resource(&pdev->dev, res);
+ chip->base = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(chip->base))
return PTR_ERR(chip->base);
chip->irq = platform_get_irq(pdev, 0);
- if (chip->irq < 0) {
- dev_err(&pdev->dev, "No IRQ resource\n");
+ if (chip->irq < 0)
return chip->irq;
- }
ret = devm_request_irq(&pdev->dev, chip->irq, sunxi_rtc_alarmirq,
0, dev_name(&pdev->dev), chip);
if (ret) {
@@ -487,15 +468,7 @@ static int sunxi_rtc_probe(struct platform_device *pdev)
chip->rtc->ops = &sunxi_rtc_ops;
- ret = rtc_register_device(chip->rtc);
- if (ret) {
- dev_err(&pdev->dev, "unable to register device\n");
- return ret;
- }
-
- dev_info(&pdev->dev, "RTC enabled\n");
-
- return 0;
+ return devm_rtc_register_device(chip->rtc);
}
static struct platform_driver sunxi_rtc_driver = {