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2023-12-08 01573e231f18eb2d99162747186f59511f56b64d

 kernel/drivers/rtc/rtc-st-lpc.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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  * rtc-st-lpc.c - ST's LPC RTC, powered by the Low Power Timer
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  *
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@@ -7,11 +8,6 @@
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  *         Lee Jones <lee.jones@linaro.org> for STMicroelectronics
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  *
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  * Based on the original driver written by Stuart Menefy.
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- *
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- * This program is free software; you can redistribute it and/or
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- * modify it under the terms of the GNU General Public Licence
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- * as published by the Free Software Foundation; either version
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- * 2 of the Licence, or (at your option) any later version.
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  */
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 #include <linux/clk.h>
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@@ -45,7 +41,6 @@
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 struct st_rtc {
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 	struct rtc_device *rtc_dev;
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 	struct rtc_wkalrm alarm;
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-	struct resource *res;
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 	struct clk *clk;
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 	unsigned long clkrate;
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 	void __iomem *ioaddr;
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@@ -166,10 +161,6 @@
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 	now_secs = rtc_tm_to_time64(&now);
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 	alarm_secs = rtc_tm_to_time64(&t->time);
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-	/* Invalid alarm time */
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-	if (now_secs > alarm_secs)
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-		return -EINVAL;
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-
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 	memcpy(&rtc->alarm, t, sizeof(struct rtc_wkalrm));
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 	/* Now many secs to fire */
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@@ -182,7 +173,7 @@
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 	return 0;
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 }
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-static struct rtc_class_ops st_rtc_ops = {
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+static const struct rtc_class_ops st_rtc_ops = {
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 	.read_time		= st_rtc_read_time,
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 	.set_time		= st_rtc_set_time,
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 	.read_alarm		= st_rtc_read_alarm,
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@@ -194,7 +185,6 @@
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 {
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 	struct device_node *np = pdev->dev.of_node;
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 	struct st_rtc *rtc;
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-	struct resource *res;
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 	uint32_t mode;
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 	int ret = 0;
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@@ -218,8 +208,7 @@
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 	spin_lock_init(&rtc->lock);
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-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
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-	rtc->ioaddr = devm_ioremap_resource(&pdev->dev, res);
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+	rtc->ioaddr = devm_platform_ioremap_resource(pdev, 0);
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 	if (IS_ERR(rtc->ioaddr))
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 		return PTR_ERR(rtc->ioaddr);
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