add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/drivers/rtc/rtc-sa1100.c
..
..
@@ -1,3 +1,4 @@
1
+// SPDX-License-Identifier: GPL-2.0-or-later
1
2
 /*
2
3
  * Real Time Clock interface for StrongARM SA1x00 and XScale PXA2xx
3
4
  *
..
..
@@ -14,11 +15,6 @@
14
15
  *
15
16
  * Converted to the RTC subsystem and Driver Model
16
17
  *   by Richard Purdie <rpurdie@rpsys.net>
17
- *
18
- * This program is free software; you can redistribute it and/or
19
- * modify it under the terms of the GNU General Public License
20
- * as published by the Free Software Foundation; either version
21
- * 2 of the License, or (at your option) any later version.
22
18
  */
23
19
 
24
20
 #include <linux/platform_device.h>
..
..
@@ -115,20 +111,17 @@
115
111
 {
116
112
 	struct sa1100_rtc *info = dev_get_drvdata(dev);
117
113
 
118
-	rtc_time_to_tm(readl_relaxed(info->rcnr), tm);
114
+	rtc_time64_to_tm(readl_relaxed(info->rcnr), tm);
119
115
 	return 0;
120
116
 }
121
117
 
122
118
 static int sa1100_rtc_set_time(struct device *dev, struct rtc_time *tm)
123
119
 {
124
120
 	struct sa1100_rtc *info = dev_get_drvdata(dev);
125
-	unsigned long time;
126
-	int ret;
127
121
 
128
-	ret = rtc_tm_to_time(tm, &time);
129
-	if (ret == 0)
130
-		writel_relaxed(time, info->rcnr);
131
-	return ret;
122
+	writel_relaxed(rtc_tm_to_time64(tm), info->rcnr);
123
+
124
+	return 0;
132
125
 }
133
126
 
134
127
 static int sa1100_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alrm)
..
..
@@ -145,24 +138,18 @@
145
138
 static int sa1100_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alrm)
146
139
 {
147
140
 	struct sa1100_rtc *info = dev_get_drvdata(dev);
148
-	unsigned long time;
149
-	int ret;
150
141
 
151
142
 	spin_lock_irq(&info->lock);
152
-	ret = rtc_tm_to_time(&alrm->time, &time);
153
-	if (ret != 0)
154
-		goto out;
155
143
 	writel_relaxed(readl_relaxed(info->rtsr) &
156
144
 		(RTSR_HZE | RTSR_ALE | RTSR_AL), info->rtsr);
157
-	writel_relaxed(time, info->rtar);
145
+	writel_relaxed(rtc_tm_to_time64(&alrm->time), info->rtar);
158
146
 	if (alrm->enabled)
159
147
 		writel_relaxed(readl_relaxed(info->rtsr) | RTSR_ALE, info->rtsr);
160
148
 	else
161
149
 		writel_relaxed(readl_relaxed(info->rtsr) & ~RTSR_ALE, info->rtsr);
162
-out:
163
150
 	spin_unlock_irq(&info->lock);
164
151
 
165
-	return ret;
152
+	return 0;
166
153
 }
167
154
 
168
155
 static int sa1100_rtc_proc(struct device *dev, struct seq_file *seq)
..
..
@@ -216,6 +203,7 @@
216
203
 
217
204
 	info->rtc->ops = &sa1100_rtc_ops;
218
205
 	info->rtc->max_user_freq = RTC_FREQ;
206
+	info->rtc->range_max = U32_MAX;
219
207
 
220
208
 	ret = rtc_register_device(info->rtc);
221
209
 	if (ret) {
..
..
@@ -254,7 +242,6 @@
254
242
 static int sa1100_rtc_probe(struct platform_device *pdev)
255
243
 {
256
244
 	struct sa1100_rtc *info;
257
-	struct resource *iores;
258
245
 	void __iomem *base;
259
246
 	int irq_1hz, irq_alarm;
260
247
 	int ret;
..
..
@@ -287,8 +274,7 @@
287
274
 		return ret;
288
275
 	}
289
276
 
290
-	iores = platform_get_resource(pdev, IORESOURCE_MEM, 0);
291
-	base = devm_ioremap_resource(&pdev->dev, iores);
277
+	base = devm_platform_ioremap_resource(pdev, 0);
292
278
 	if (IS_ERR(base))
293
279
 		return PTR_ERR(base);
294
280