mk-rootfs.sh

hc

2023-12-11 072de836f53be56a70cecf70b43ae43b7ce17376

 kernel/drivers/rtc/rtc-88pm860x.c
..
..
@@ -1,12 +1,9 @@
1
+// SPDX-License-Identifier: GPL-2.0-only
1
2
 /*
2
3
  * Real Time Clock driver for Marvell 88PM860x PMIC
3
4
  *
4
5
  * Copyright (c) 2010 Marvell International Ltd.
5
6
  * Author:	Haojian Zhuang <haojian.zhuang@marvell.com>
6
- *
7
- * This program is free software; you can redistribute it and/or modify
8
- * it under the terms of the GNU General Public License version 2 as
9
- * published by the Free Software Foundation.
10
7
  */
11
8
 
12
9
 #include <linux/kernel.h>
..
..
@@ -31,7 +28,6 @@
31
28
 
32
29
 	int			irq;
33
30
 	int			vrtc;
34
-	int			(*sync)(unsigned int ticks);
35
31
 };
36
32
 
37
33
 #define REG_VRTC_MEAS1		0x7D
..
..
@@ -79,33 +75,6 @@
79
75
 	return 0;
80
76
 }
81
77
 
82
-/*
83
- * Calculate the next alarm time given the requested alarm time mask
84
- * and the current time.
85
- */
86
-static void rtc_next_alarm_time(struct rtc_time *next, struct rtc_time *now,
87
-				struct rtc_time *alrm)
88
-{
89
-	unsigned long next_time;
90
-	unsigned long now_time;
91
-
92
-	next->tm_year = now->tm_year;
93
-	next->tm_mon = now->tm_mon;
94
-	next->tm_mday = now->tm_mday;
95
-	next->tm_hour = alrm->tm_hour;
96
-	next->tm_min = alrm->tm_min;
97
-	next->tm_sec = alrm->tm_sec;
98
-
99
-	rtc_tm_to_time(now, &now_time);
100
-	rtc_tm_to_time(next, &next_time);
101
-
102
-	if (next_time < now_time) {
103
-		/* Advance one day */
104
-		next_time += 60 * 60 * 24;
105
-		rtc_time_to_tm(next_time, next);
106
-	}
107
-}
108
-
109
78
 static int pm860x_rtc_read_time(struct device *dev, struct rtc_time *tm)
110
79
 {
111
80
 	struct pm860x_rtc_info *info = dev_get_drvdata(dev);
..
..
@@ -126,7 +95,7 @@
126
95
 	dev_dbg(info->dev, "get base:0x%lx, RO count:0x%lx, ticks:0x%lx\n",
127
96
 		base, data, ticks);
128
97
 
129
-	rtc_time_to_tm(ticks, tm);
98
+	rtc_time64_to_tm(ticks, tm);
130
99
 
131
100
 	return 0;
132
101
 }
..
..
@@ -137,13 +106,7 @@
137
106
 	unsigned char buf[4];
138
107
 	unsigned long ticks, base, data;
139
108
 
140
-	if (tm->tm_year > 206) {
141
-		dev_dbg(info->dev, "Set time %d out of range. "
142
-			"Please set time between 1970 to 2106.\n",
143
-			1900 + tm->tm_year);
144
-		return -EINVAL;
145
-	}
146
-	rtc_tm_to_time(tm, &ticks);
109
+	ticks = rtc_tm_to_time64(tm);
147
110
 
148
111
 	/* load 32-bit read-only counter */
149
112
 	pm860x_bulk_read(info->i2c, PM8607_RTC_COUNTER1, 4, buf);
..
..
@@ -158,8 +121,6 @@
158
121
 	pm860x_page_reg_write(info->i2c, REG2_DATA, (base >> 8) & 0xFF);
159
122
 	pm860x_page_reg_write(info->i2c, REG3_DATA, base & 0xFF);
160
123
 
161
-	if (info->sync)
162
-		info->sync(ticks);
163
124
 	return 0;
164
125
 }
165
126
 
..
..
@@ -183,7 +144,7 @@
183
144
 	dev_dbg(info->dev, "get base:0x%lx, RO count:0x%lx, ticks:0x%lx\n",
184
145
 		base, data, ticks);
185
146
 
186
-	rtc_time_to_tm(ticks, &alrm->time);
147
+	rtc_time64_to_tm(ticks, &alrm->time);
187
148
 	ret = pm860x_reg_read(info->i2c, PM8607_RTC1);
188
149
 	alrm->enabled = (ret & ALARM_EN) ? 1 : 0;
189
150
 	alrm->pending = (ret & (ALARM | ALARM_WAKEUP)) ? 1 : 0;
..
..
@@ -193,7 +154,6 @@
193
154
 static int pm860x_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alrm)
194
155
 {
195
156
 	struct pm860x_rtc_info *info = dev_get_drvdata(dev);
196
-	struct rtc_time now_tm, alarm_tm;
197
157
 	unsigned long ticks, base, data;
198
158
 	unsigned char buf[8];
199
159
 	int mask;
..
..
@@ -206,18 +166,7 @@
206
166
 	base = ((unsigned long)buf[1] << 24) | (buf[3] << 16) |
207
167
 		(buf[5] << 8) | buf[7];
208
168
 
209
-	/* load 32-bit read-only counter */
210
-	pm860x_bulk_read(info->i2c, PM8607_RTC_COUNTER1, 4, buf);
211
-	data = ((unsigned long)buf[3] << 24) | (buf[2] << 16) |
212
-		(buf[1] << 8) | buf[0];
213
-	ticks = base + data;
214
-	dev_dbg(info->dev, "get base:0x%lx, RO count:0x%lx, ticks:0x%lx\n",
215
-		base, data, ticks);
216
-
217
-	rtc_time_to_tm(ticks, &now_tm);
218
-	rtc_next_alarm_time(&alarm_tm, &now_tm, &alrm->time);
219
-	/* get new ticks for alarm in 24 hours */
220
-	rtc_tm_to_time(&alarm_tm, &ticks);
169
+	ticks = rtc_tm_to_time64(&alrm->time);
221
170
 	data = ticks - base;
222
171
 
223
172
 	buf[0] = data & 0xff;
..
..
@@ -312,29 +261,22 @@
312
261
 	return 0;
313
262
 }
314
263
 #else
315
-#define pm860x_rtc_dt_init(x, y)	(-1)
264
+#define pm860x_rtc_dt_init(x, y)	do { } while (0)
316
265
 #endif
317
266
 
318
267
 static int pm860x_rtc_probe(struct platform_device *pdev)
319
268
 {
320
269
 	struct pm860x_chip *chip = dev_get_drvdata(pdev->dev.parent);
321
-	struct pm860x_rtc_pdata *pdata = NULL;
322
270
 	struct pm860x_rtc_info *info;
323
-	struct rtc_time tm;
324
-	unsigned long ticks = 0;
325
271
 	int ret;
326
-
327
-	pdata = dev_get_platdata(&pdev->dev);
328
272
 
329
273
 	info = devm_kzalloc(&pdev->dev, sizeof(struct pm860x_rtc_info),
330
274
 			    GFP_KERNEL);
331
275
 	if (!info)
332
276
 		return -ENOMEM;
333
277
 	info->irq = platform_get_irq(pdev, 0);
334
-	if (info->irq < 0) {
335
-		dev_err(&pdev->dev, "No IRQ resource!\n");
278
+	if (info->irq < 0)
336
279
 		return info->irq;
337
-	}
338
280
 
339
281
 	info->chip = chip;
340
282
 	info->i2c = (chip->id == CHIP_PM8607) ? chip->client : chip->companion;
..
..
@@ -360,33 +302,10 @@
360
302
 	pm860x_page_reg_write(info->i2c, REG2_ADDR, REG2_DATA);
361
303
 	pm860x_page_reg_write(info->i2c, REG3_ADDR, REG3_DATA);
362
304
 
363
-	ret = pm860x_rtc_read_time(&pdev->dev, &tm);
364
-	if (ret < 0) {
365
-		dev_err(&pdev->dev, "Failed to read initial time.\n");
366
-		return ret;
367
-	}
368
-	if ((tm.tm_year < 70) || (tm.tm_year > 138)) {
369
-		tm.tm_year = 70;
370
-		tm.tm_mon = 0;
371
-		tm.tm_mday = 1;
372
-		tm.tm_hour = 0;
373
-		tm.tm_min = 0;
374
-		tm.tm_sec = 0;
375
-		ret = pm860x_rtc_set_time(&pdev->dev, &tm);
376
-		if (ret < 0) {
377
-			dev_err(&pdev->dev, "Failed to set initial time.\n");
378
-			return ret;
379
-		}
380
-	}
381
-	rtc_tm_to_time(&tm, &ticks);
382
-	if (pm860x_rtc_dt_init(pdev, info)) {
383
-		if (pdata && pdata->sync) {
384
-			pdata->sync(ticks);
385
-			info->sync = pdata->sync;
386
-		}
387
-	}
305
+	pm860x_rtc_dt_init(pdev, info);
388
306
 
389
307
 	info->rtc_dev->ops = &pm860x_rtc_ops;
308
+	info->rtc_dev->range_max = U32_MAX;
390
309
 
391
310
 	ret = rtc_register_device(info->rtc_dev);
392
311
 	if (ret)
..
..
@@ -400,12 +319,6 @@
400
319
 
401
320
 #ifdef VRTC_CALIBRATION
402
321
 	/* <00> -- 2.7V, <01> -- 2.9V, <10> -- 3.1V, <11> -- 3.3V */
403
-	if (pm860x_rtc_dt_init(pdev, info)) {
404
-		if (pdata && pdata->vrtc)
405
-			info->vrtc = pdata->vrtc & 0x3;
406
-		else
407
-			info->vrtc = 1;
408
-	}
409
322
 	pm860x_set_bits(info->i2c, PM8607_MEAS_EN2, MEAS2_VRTC, MEAS2_VRTC);
410
323
 
411
324
 	/* calibrate VRTC */