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-lpc32xx.c | 74 +++++++++++-------------------------
1 files changed, 23 insertions(+), 51 deletions(-)
diff --git a/kernel/drivers/rtc/rtc-lpc32xx.c b/kernel/drivers/rtc/rtc-lpc32xx.c
index 910e600..15d8abd 100644
--- a/kernel/drivers/rtc/rtc-lpc32xx.c
+++ b/kernel/drivers/rtc/rtc-lpc32xx.c
@@ -1,14 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2010 NXP Semiconductors
- *
- * 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.
- *
- * 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.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <linux/kernel.h>
@@ -47,8 +39,6 @@
#define LPC32XX_RTC_KEY_ONSW_LOADVAL 0xB5C13F27
-#define RTC_NAME "rtc-lpc32xx"
-
#define rtc_readl(dev, reg) \
__raw_readl((dev)->rtc_base + (reg))
#define rtc_writel(dev, reg, val) \
@@ -68,14 +58,15 @@
struct lpc32xx_rtc *rtc = dev_get_drvdata(dev);
elapsed_sec = rtc_readl(rtc, LPC32XX_RTC_UCOUNT);
- rtc_time_to_tm(elapsed_sec, time);
+ rtc_time64_to_tm(elapsed_sec, time);
return 0;
}
-static int lpc32xx_rtc_set_mmss(struct device *dev, unsigned long secs)
+static int lpc32xx_rtc_set_time(struct device *dev, struct rtc_time *time)
{
struct lpc32xx_rtc *rtc = dev_get_drvdata(dev);
+ u32 secs = rtc_tm_to_time64(time);
u32 tmp;
spin_lock_irq(&rtc->lock);
@@ -97,7 +88,7 @@
{
struct lpc32xx_rtc *rtc = dev_get_drvdata(dev);
- rtc_time_to_tm(rtc_readl(rtc, LPC32XX_RTC_MATCH0), &wkalrm->time);
+ rtc_time64_to_tm(rtc_readl(rtc, LPC32XX_RTC_MATCH0), &wkalrm->time);
wkalrm->enabled = rtc->alarm_enabled;
wkalrm->pending = !!(rtc_readl(rtc, LPC32XX_RTC_INTSTAT) &
LPC32XX_RTC_INTSTAT_MATCH0);
@@ -111,13 +102,8 @@
struct lpc32xx_rtc *rtc = dev_get_drvdata(dev);
unsigned long alarmsecs;
u32 tmp;
- int ret;
- ret = rtc_tm_to_time(&wkalrm->time, &alarmsecs);
- if (ret < 0) {
- dev_warn(dev, "Failed to convert time: %d\n", ret);
- return ret;
- }
+ alarmsecs = rtc_tm_to_time64(&wkalrm->time);
spin_lock_irq(&rtc->lock);
@@ -191,7 +177,7 @@
static const struct rtc_class_ops lpc32xx_rtc_ops = {
.read_time = lpc32xx_rtc_read_time,
- .set_mmss = lpc32xx_rtc_set_mmss,
+ .set_time = lpc32xx_rtc_set_time,
.read_alarm = lpc32xx_rtc_read_alarm,
.set_alarm = lpc32xx_rtc_set_alarm,
.alarm_irq_enable = lpc32xx_rtc_alarm_irq_enable,
@@ -199,25 +185,15 @@
static int lpc32xx_rtc_probe(struct platform_device *pdev)
{
- struct resource *res;
struct lpc32xx_rtc *rtc;
- int rtcirq;
+ int err;
u32 tmp;
-
- rtcirq = platform_get_irq(pdev, 0);
- if (rtcirq < 0) {
- dev_warn(&pdev->dev, "Can't get interrupt resource\n");
- rtcirq = -1;
- }
rtc = devm_kzalloc(&pdev->dev, sizeof(*rtc), GFP_KERNEL);
if (unlikely(!rtc))
return -ENOMEM;
- rtc->irq = rtcirq;
-
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- rtc->rtc_base = devm_ioremap_resource(&pdev->dev, res);
+ rtc->rtc_base = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(rtc->rtc_base))
return PTR_ERR(rtc->rtc_base);
@@ -256,18 +232,25 @@
platform_set_drvdata(pdev, rtc);
- rtc->rtc = devm_rtc_device_register(&pdev->dev, RTC_NAME,
- &lpc32xx_rtc_ops, THIS_MODULE);
- if (IS_ERR(rtc->rtc)) {
- dev_err(&pdev->dev, "Can't get RTC\n");
+ rtc->rtc = devm_rtc_allocate_device(&pdev->dev);
+ if (IS_ERR(rtc->rtc))
return PTR_ERR(rtc->rtc);
- }
+
+ rtc->rtc->ops = &lpc32xx_rtc_ops;
+ rtc->rtc->range_max = U32_MAX;
+
+ err = rtc_register_device(rtc->rtc);
+ if (err)
+ return err;
/*
* IRQ is enabled after device registration in case alarm IRQ
* is pending upon suspend exit.
*/
- if (rtc->irq >= 0) {
+ rtc->irq = platform_get_irq(pdev, 0);
+ if (rtc->irq < 0) {
+ dev_warn(&pdev->dev, "Can't get interrupt resource\n");
+ } else {
if (devm_request_irq(&pdev->dev, rtc->irq,
lpc32xx_rtc_alarm_interrupt,
0, pdev->name, rtc) < 0) {
@@ -277,16 +260,6 @@
device_init_wakeup(&pdev->dev, 1);
}
}
-
- return 0;
-}
-
-static int lpc32xx_rtc_remove(struct platform_device *pdev)
-{
- struct lpc32xx_rtc *rtc = platform_get_drvdata(pdev);
-
- if (rtc->irq >= 0)
- device_init_wakeup(&pdev->dev, 0);
return 0;
}
@@ -372,9 +345,8 @@
static struct platform_driver lpc32xx_rtc_driver = {
.probe = lpc32xx_rtc_probe,
- .remove = lpc32xx_rtc_remove,
.driver = {
- .name = RTC_NAME,
+ .name = "rtc-lpc32xx",
.pm = LPC32XX_RTC_PM_OPS,
.of_match_table = of_match_ptr(lpc32xx_rtc_match),
},
--
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