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-rk808.c | 43 ++++++++++++++++---------------------------
1 files changed, 16 insertions(+), 27 deletions(-)
diff --git a/kernel/drivers/rtc/rtc-rk808.c b/kernel/drivers/rtc/rtc-rk808.c
index 67e5a94..c5e19fb 100644
--- a/kernel/drivers/rtc/rtc-rk808.c
+++ b/kernel/drivers/rtc/rtc-rk808.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* RTC driver for Rockchip RK808
*
@@ -5,15 +6,6 @@
*
* Author: Chris Zhong <zyw@rock-chips.com>
* Author: Zhang Qing <zhangqing@rock-chips.com>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope 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>
@@ -36,6 +28,7 @@
#define BIT_RTC_CTRL_REG_RTC_READSEL_M BIT(7)
#define BIT_RTC_INTERRUPTS_REG_IT_ALARM_M BIT(3)
#define RTC_STATUS_MASK 0xFE
+#define RTC_ALARM_STATUS BIT(6)
#define SECONDS_REG_MSK 0x7F
#define MINUTES_REG_MAK 0x7F
@@ -240,10 +233,8 @@
return ret;
}
- dev_dbg(dev, "alrm read RTC date/time %4d-%02d-%02d(%d) %02d:%02d:%02d\n",
- 1900 + alrm->time.tm_year, alrm->time.tm_mon + 1,
- alrm->time.tm_mday, alrm->time.tm_wday, alrm->time.tm_hour,
- alrm->time.tm_min, alrm->time.tm_sec);
+ dev_dbg(dev, "alrm read RTC date/time %ptRd(%d) %ptRt\n",
+ &alrm->time, alrm->time.tm_wday, &alrm->time);
alrm->enabled = (int_reg & BIT_RTC_INTERRUPTS_REG_IT_ALARM_M) ? 1 : 0;
@@ -258,6 +249,12 @@
ret = regmap_update_bits(rk808->regmap, rk808_rtc->creg->int_reg,
BIT_RTC_INTERRUPTS_REG_IT_ALARM_M, 0);
+ /*
+ * The rtc alarm status(BIT(6)) must be cleared after alarm 1s or
+ * after the alarm is disabled.
+ */
+ ret = regmap_write(rk808->regmap, rk808_rtc->creg->status_reg,
+ RTC_ALARM_STATUS);
return ret;
}
@@ -285,10 +282,8 @@
dev_err(dev, "Failed to stop alarm: %d\n", ret);
return ret;
}
- dev_dbg(dev, "alrm set RTC date/time %4d-%02d-%02d(%d) %02d:%02d:%02d\n",
- 1900 + alrm->time.tm_year, alrm->time.tm_mon + 1,
- alrm->time.tm_mday, alrm->time.tm_wday, alrm->time.tm_hour,
- alrm->time.tm_min, alrm->time.tm_sec);
+ dev_dbg(dev, "alrm set RTC date/time %ptRd(%d) %ptRt\n",
+ &alrm->time, alrm->time.tm_wday, &alrm->time);
if (rk808_rtc->flag & RTC_NEED_TRANSITIONS)
gregorian_to_rockchip(&alrm->time);
@@ -371,8 +366,7 @@
/* Turn off the alarm if it should not be a wake source. */
static int rk808_rtc_suspend(struct device *dev)
{
- struct platform_device *pdev = to_platform_device(dev);
- struct rk808_rtc *rk808_rtc = dev_get_drvdata(&pdev->dev);
+ struct rk808_rtc *rk808_rtc = dev_get_drvdata(dev);
if (device_may_wakeup(dev))
enable_irq_wake(rk808_rtc->irq);
@@ -385,8 +379,7 @@
*/
static int rk808_rtc_resume(struct device *dev)
{
- struct platform_device *pdev = to_platform_device(dev);
- struct rk808_rtc *rk808_rtc = dev_get_drvdata(&pdev->dev);
+ struct rk808_rtc *rk808_rtc = dev_get_drvdata(dev);
if (device_may_wakeup(dev))
disable_irq_wake(rk808_rtc->irq);
@@ -477,7 +470,7 @@
if (ret) {
dev_err(&pdev->dev,
"Failed to write RTC status: %d\n", ret);
- return ret;
+ return ret;
}
device_init_wakeup(&pdev->dev, 1);
@@ -489,12 +482,8 @@
rk808_rtc->rtc->ops = &rk808_rtc_ops;
rk808_rtc->irq = platform_get_irq(pdev, 0);
- if (rk808_rtc->irq < 0) {
- if (rk808_rtc->irq != -EPROBE_DEFER)
- dev_err(&pdev->dev, "Wake up is not possible as irq = %d\n",
- rk808_rtc->irq);
+ if (rk808_rtc->irq < 0)
return rk808_rtc->irq;
- }
/* request alarm irq of rk808 */
ret = devm_request_threaded_irq(&pdev->dev, rk808_rtc->irq, NULL,
--
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