add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/drivers/rtc/rtc-wm8350.c
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@@ -1,3 +1,4 @@
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+// SPDX-License-Identifier: GPL-2.0-or-later
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 /*
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  *	Real Time Clock driver for Wolfson Microelectronics WM8350
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  *
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@@ -5,12 +6,6 @@
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  *
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  *  Author: Liam Girdwood
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  *          linux@wolfsonmicro.com
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- *
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- *  This program is free software; you can redistribute  it and/or modify it
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- *  under  the terms of  the GNU General  Public License as published by the
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- *  Free Software Foundation;  either version 2 of the  License, or (at your
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- *  option) any later version.
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- *
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  */
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 #include <linux/module.h>
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@@ -340,8 +335,7 @@
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 #ifdef CONFIG_PM_SLEEP
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 static int wm8350_rtc_suspend(struct device *dev)
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 {
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-	struct platform_device *pdev = to_platform_device(dev);
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-	struct wm8350 *wm8350 = dev_get_drvdata(&pdev->dev);
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+	struct wm8350 *wm8350 = dev_get_drvdata(dev);
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 	int ret = 0;
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 	u16 reg;
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@@ -351,8 +345,7 @@
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 	    reg & WM8350_RTC_ALMSTS) {
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 		ret = wm8350_rtc_stop_alarm(wm8350);
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 		if (ret != 0)
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-			dev_err(&pdev->dev, "Failed to stop RTC alarm: %d\n",
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-				ret);
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+			dev_err(dev, "Failed to stop RTC alarm: %d\n", ret);
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 	}
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 	return ret;
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@@ -360,15 +353,13 @@
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353
 
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 static int wm8350_rtc_resume(struct device *dev)
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 {
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-	struct platform_device *pdev = to_platform_device(dev);
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-	struct wm8350 *wm8350 = dev_get_drvdata(&pdev->dev);
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+	struct wm8350 *wm8350 = dev_get_drvdata(dev);
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 	int ret;
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 	if (wm8350->rtc.alarm_enabled) {
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 		ret = wm8350_rtc_start_alarm(wm8350);
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 		if (ret != 0)
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-			dev_err(&pdev->dev,
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-				"Failed to restart RTC alarm: %d\n", ret);
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+			dev_err(dev, "Failed to restart RTC alarm: %d\n", ret);
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 	}
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 	return 0;
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@@ -441,14 +432,21 @@
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 		return ret;
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 	}
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-	wm8350_register_irq(wm8350, WM8350_IRQ_RTC_SEC,
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+	ret = wm8350_register_irq(wm8350, WM8350_IRQ_RTC_SEC,
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 			    wm8350_rtc_update_handler, 0,
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 			    "RTC Seconds", wm8350);
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+	if (ret)
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+		return ret;
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+
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 	wm8350_mask_irq(wm8350, WM8350_IRQ_RTC_SEC);
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-	wm8350_register_irq(wm8350, WM8350_IRQ_RTC_ALM,
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+	ret = wm8350_register_irq(wm8350, WM8350_IRQ_RTC_ALM,
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 			    wm8350_rtc_alarm_handler, 0,
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 			    "RTC Alarm", wm8350);
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+	if (ret) {
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+		wm8350_free_irq(wm8350, WM8350_IRQ_RTC_SEC, wm8350);
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+		return ret;
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+	}
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 	return 0;
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 }