From 61598093bbdd283a7edc367d900f223070ead8d2 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Fri, 10 May 2024 07:43:03 +0000
Subject: [PATCH] add ax88772C AX88772C_eeprom_tools
---
kernel/drivers/rtc/rtc-vt8500.c | 46 ++++++++++++----------------------------------
1 files changed, 12 insertions(+), 34 deletions(-)
diff --git a/kernel/drivers/rtc/rtc-vt8500.c b/kernel/drivers/rtc/rtc-vt8500.c
index 27e8969..e258862 100644
--- a/kernel/drivers/rtc/rtc-vt8500.c
+++ b/kernel/drivers/rtc/rtc-vt8500.c
@@ -1,18 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* drivers/rtc/rtc-vt8500.c
*
* Copyright (C) 2010 Alexey Charkov <alchark@gmail.com>
*
* Based on rtc-pxa.c
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * 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.
*/
#include <linux/module.h>
@@ -130,12 +122,6 @@
{
struct vt8500_rtc *vt8500_rtc = dev_get_drvdata(dev);
- if (tm->tm_year < 100) {
- dev_warn(dev, "Only years 2000-2199 are supported by the "
- "hardware!\n");
- return -EINVAL;
- }
-
writel((bin2bcd(tm->tm_year % 100) << DATE_YEAR_S)
| (bin2bcd(tm->tm_mon + 1) << DATE_MONTH_S)
| (bin2bcd(tm->tm_mday))
@@ -208,7 +194,6 @@
static int vt8500_rtc_probe(struct platform_device *pdev)
{
struct vt8500_rtc *vt8500_rtc;
- struct resource *res;
int ret;
vt8500_rtc = devm_kzalloc(&pdev->dev,
@@ -220,13 +205,10 @@
platform_set_drvdata(pdev, vt8500_rtc);
vt8500_rtc->irq_alarm = platform_get_irq(pdev, 0);
- if (vt8500_rtc->irq_alarm < 0) {
- dev_err(&pdev->dev, "No alarm IRQ resource defined\n");
+ if (vt8500_rtc->irq_alarm < 0)
return vt8500_rtc->irq_alarm;
- }
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- vt8500_rtc->regbase = devm_ioremap_resource(&pdev->dev, res);
+ vt8500_rtc->regbase = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(vt8500_rtc->regbase))
return PTR_ERR(vt8500_rtc->regbase);
@@ -234,27 +216,23 @@
writel(VT8500_RTC_CR_ENABLE,
vt8500_rtc->regbase + VT8500_RTC_CR);
- vt8500_rtc->rtc = devm_rtc_device_register(&pdev->dev, "vt8500-rtc",
- &vt8500_rtc_ops, THIS_MODULE);
- if (IS_ERR(vt8500_rtc->rtc)) {
- ret = PTR_ERR(vt8500_rtc->rtc);
- dev_err(&pdev->dev,
- "Failed to register RTC device -> %d\n", ret);
- goto err_return;
- }
+ vt8500_rtc->rtc = devm_rtc_allocate_device(&pdev->dev);
+ if (IS_ERR(vt8500_rtc->rtc))
+ return PTR_ERR(vt8500_rtc->rtc);
+
+ vt8500_rtc->rtc->ops = &vt8500_rtc_ops;
+ vt8500_rtc->rtc->range_min = RTC_TIMESTAMP_BEGIN_2000;
+ vt8500_rtc->rtc->range_max = RTC_TIMESTAMP_END_2199;
ret = devm_request_irq(&pdev->dev, vt8500_rtc->irq_alarm,
vt8500_rtc_irq, 0, "rtc alarm", vt8500_rtc);
if (ret < 0) {
dev_err(&pdev->dev, "can't get irq %i, err %d\n",
vt8500_rtc->irq_alarm, ret);
- goto err_return;
+ return ret;
}
- return 0;
-
-err_return:
- return ret;
+ return rtc_register_device(vt8500_rtc->rtc);
}
static int vt8500_rtc_remove(struct platform_device *pdev)
--
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