1 // SPDX-License-Identifier: GPL-2.0-only
23 	MSM6242_SECOND1		= 0x0,	/* 1-second digit register */
24 	MSM6242_SECOND10	= 0x1,	/* 10-second digit register */
25 	MSM6242_MINUTE1		= 0x2,	/* 1-minute digit register */
26 	MSM6242_MINUTE10	= 0x3,	/* 10-minute digit register */
27 	MSM6242_HOUR1		= 0x4,	/* 1-hour digit register */
28 	MSM6242_HOUR10		= 0x5,	/* PM/AM, 10-hour digit register */
29 	MSM6242_DAY1		= 0x6,	/* 1-day digit register */
30 	MSM6242_DAY10		= 0x7,	/* 10-day digit register */
31 	MSM6242_MONTH1		= 0x8,	/* 1-month digit register */
32 	MSM6242_MONTH10		= 0x9,	/* 10-month digit register */
33 	MSM6242_YEAR1		= 0xa,	/* 1-year digit register */
34 	MSM6242_YEAR10		= 0xb,	/* 10-year digit register */
41 #define MSM6242_HOUR10_AM	(0 << 2)
42 #define MSM6242_HOUR10_PM	(1 << 2)
47 #define MSM6242_WEEK_TUESDAY	2
53 #define MSM6242_CD_30_S_ADJ	(1 << 3)	/* 30-second adjustment */
54 #define MSM6242_CD_IRQ_FLAG	(1 << 2)
58 #define MSM6242_CE_T_MASK	(3 << 2)
59 #define MSM6242_CE_T_64HZ	(0 << 2)	/* period 1/64 second */
60 #define MSM6242_CE_T_1HZ	(1 << 2)	/* period 1 second */
61 #define MSM6242_CE_T_1MINUTE	(2 << 2)	/* period 1 minute */
62 #define MSM6242_CE_T_1HOUR	(3 << 2)	/* period 1 hour */
68 #define MSM6242_CF_12H		(0 << 2)
69 #define MSM6242_CF_24H		(1 << 2)
82 	return __raw_readl(&priv->regs[reg]) & 0xf;  in msm6242_read()
88 	__raw_writel(val, &priv->regs[reg]);  in msm6242_write()
101 		cnt--;  in msm6242_lock()
120 	tm->tm_sec  = msm6242_read(priv, MSM6242_SECOND10) * 10 +  in msm6242_read_time()
122 	tm->tm_min  = msm6242_read(priv, MSM6242_MINUTE10) * 10 +  in msm6242_read_time()
124 	tm->tm_hour = (msm6242_read(priv, MSM6242_HOUR10) &  in msm6242_read_time()
125 		       MSM6242_HOUR10_HR_MASK) * 10 +  in msm6242_read_time()
127 	tm->tm_mday = msm6242_read(priv, MSM6242_DAY10) * 10 +  in msm6242_read_time()
129 	tm->tm_wday = msm6242_read(priv, MSM6242_WEEK);  in msm6242_read_time()
130 	tm->tm_mon  = msm6242_read(priv, MSM6242_MONTH10) * 10 +  in msm6242_read_time()
131 		      msm6242_read(priv, MSM6242_MONTH1) - 1;  in msm6242_read_time()
132 	tm->tm_year = msm6242_read(priv, MSM6242_YEAR10) * 10 +  in msm6242_read_time()
134 	if (tm->tm_year <= 69)  in msm6242_read_time()
135 		tm->tm_year += 100;  in msm6242_read_time()
140 		if (!pm && tm->tm_hour == 12)  in msm6242_read_time()
141 			tm->tm_hour = 0;  in msm6242_read_time()
142 		else if (pm && tm->tm_hour != 12)  in msm6242_read_time()
143 			tm->tm_hour += 12;  in msm6242_read_time()
157 	msm6242_write(priv, tm->tm_sec / 10, MSM6242_SECOND10);  in msm6242_set_time()
158 	msm6242_write(priv, tm->tm_sec % 10, MSM6242_SECOND1);  in msm6242_set_time()
159 	msm6242_write(priv, tm->tm_min / 10, MSM6242_MINUTE10);  in msm6242_set_time()
160 	msm6242_write(priv, tm->tm_min % 10, MSM6242_MINUTE1);  in msm6242_set_time()
162 		msm6242_write(priv, tm->tm_hour / 10, MSM6242_HOUR10);  in msm6242_set_time()
163 	else if (tm->tm_hour >= 12)  in msm6242_set_time()
164 		msm6242_write(priv, MSM6242_HOUR10_PM + (tm->tm_hour - 12) / 10,  in msm6242_set_time()
167 		msm6242_write(priv, tm->tm_hour / 10, MSM6242_HOUR10);  in msm6242_set_time()
168 	msm6242_write(priv, tm->tm_hour % 10, MSM6242_HOUR1);  in msm6242_set_time()
169 	msm6242_write(priv, tm->tm_mday / 10, MSM6242_DAY10);  in msm6242_set_time()
170 	msm6242_write(priv, tm->tm_mday % 10, MSM6242_DAY1);  in msm6242_set_time()
171 	if (tm->tm_wday != -1)  in msm6242_set_time()
172 		msm6242_write(priv, tm->tm_wday, MSM6242_WEEK);  in msm6242_set_time()
173 	msm6242_write(priv, (tm->tm_mon + 1) / 10, MSM6242_MONTH10);  in msm6242_set_time()
174 	msm6242_write(priv, (tm->tm_mon + 1) % 10, MSM6242_MONTH1);  in msm6242_set_time()
175 	if (tm->tm_year >= 100)  in msm6242_set_time()
176 		tm->tm_year -= 100;  in msm6242_set_time()
177 	msm6242_write(priv, tm->tm_year / 10, MSM6242_YEAR10);  in msm6242_set_time()
178 	msm6242_write(priv, tm->tm_year % 10, MSM6242_YEAR1);  in msm6242_set_time()
197 		return -ENODEV;  in msm6242_rtc_probe()
199 	priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);  in msm6242_rtc_probe()
201 		return -ENOMEM;  in msm6242_rtc_probe()
203 	priv->regs = devm_ioremap(&pdev->dev, res->start, resource_size(res));  in msm6242_rtc_probe()
204 	if (!priv->regs)  in msm6242_rtc_probe()
205 		return -ENOMEM;  in msm6242_rtc_probe()
208 	rtc = devm_rtc_device_register(&pdev->dev, "rtc-msm6242",  in msm6242_rtc_probe()
213 	priv->rtc = rtc;  in msm6242_rtc_probe()
219 		.name	= "rtc-msm6242",
225 MODULE_AUTHOR("Geert Uytterhoeven <geert@linux-m68k.org>");
228 MODULE_ALIAS("platform:rtc-msm6242");