70 static inline unsigned int rp5c01_read(struct rp5c01_priv *priv,  in rp5c01_read()  argument
73 	return __raw_readl(&priv->regs[reg]) & 0xf;  in rp5c01_read()
76 static inline void rp5c01_write(struct rp5c01_priv *priv, unsigned int val,  in rp5c01_write()  argument
79 	__raw_writel(val, &priv->regs[reg]);  in rp5c01_write()
82 static void rp5c01_lock(struct rp5c01_priv *priv)  in rp5c01_lock()  argument
84 	rp5c01_write(priv, RP5C01_MODE_MODE00, RP5C01_MODE);  in rp5c01_lock()
87 static void rp5c01_unlock(struct rp5c01_priv *priv)  in rp5c01_unlock()  argument
89 	rp5c01_write(priv, RP5C01_MODE_TIMER_EN | RP5C01_MODE_MODE01,  in rp5c01_unlock()
95 	struct rp5c01_priv *priv = dev_get_drvdata(dev);  in rp5c01_read_time()  local
97 	spin_lock_irq(&priv->lock);  in rp5c01_read_time()
98 	rp5c01_lock(priv);  in rp5c01_read_time()
100 	tm->tm_sec  = rp5c01_read(priv, RP5C01_10_SECOND) * 10 +  in rp5c01_read_time()
101 		      rp5c01_read(priv, RP5C01_1_SECOND);  in rp5c01_read_time()
102 	tm->tm_min  = rp5c01_read(priv, RP5C01_10_MINUTE) * 10 +  in rp5c01_read_time()
103 		      rp5c01_read(priv, RP5C01_1_MINUTE);  in rp5c01_read_time()
104 	tm->tm_hour = rp5c01_read(priv, RP5C01_10_HOUR) * 10 +  in rp5c01_read_time()
105 		      rp5c01_read(priv, RP5C01_1_HOUR);  in rp5c01_read_time()
106 	tm->tm_mday = rp5c01_read(priv, RP5C01_10_DAY) * 10 +  in rp5c01_read_time()
107 		      rp5c01_read(priv, RP5C01_1_DAY);  in rp5c01_read_time()
108 	tm->tm_wday = rp5c01_read(priv, RP5C01_DAY_OF_WEEK);  in rp5c01_read_time()
109 	tm->tm_mon  = rp5c01_read(priv, RP5C01_10_MONTH) * 10 +  in rp5c01_read_time()
110 		      rp5c01_read(priv, RP5C01_1_MONTH) - 1;  in rp5c01_read_time()
111 	tm->tm_year = rp5c01_read(priv, RP5C01_10_YEAR) * 10 +  in rp5c01_read_time()
112 		      rp5c01_read(priv, RP5C01_1_YEAR);  in rp5c01_read_time()
116 	rp5c01_unlock(priv);  in rp5c01_read_time()
117 	spin_unlock_irq(&priv->lock);  in rp5c01_read_time()
124 	struct rp5c01_priv *priv = dev_get_drvdata(dev);  in rp5c01_set_time()  local
126 	spin_lock_irq(&priv->lock);  in rp5c01_set_time()
127 	rp5c01_lock(priv);  in rp5c01_set_time()
129 	rp5c01_write(priv, tm->tm_sec / 10, RP5C01_10_SECOND);  in rp5c01_set_time()
130 	rp5c01_write(priv, tm->tm_sec % 10, RP5C01_1_SECOND);  in rp5c01_set_time()
131 	rp5c01_write(priv, tm->tm_min / 10, RP5C01_10_MINUTE);  in rp5c01_set_time()
132 	rp5c01_write(priv, tm->tm_min % 10, RP5C01_1_MINUTE);  in rp5c01_set_time()
133 	rp5c01_write(priv, tm->tm_hour / 10, RP5C01_10_HOUR);  in rp5c01_set_time()
134 	rp5c01_write(priv, tm->tm_hour % 10, RP5C01_1_HOUR);  in rp5c01_set_time()
135 	rp5c01_write(priv, tm->tm_mday / 10, RP5C01_10_DAY);  in rp5c01_set_time()
136 	rp5c01_write(priv, tm->tm_mday % 10, RP5C01_1_DAY);  in rp5c01_set_time()
138 		rp5c01_write(priv, tm->tm_wday, RP5C01_DAY_OF_WEEK);  in rp5c01_set_time()
139 	rp5c01_write(priv, (tm->tm_mon + 1) / 10, RP5C01_10_MONTH);  in rp5c01_set_time()
140 	rp5c01_write(priv, (tm->tm_mon + 1) % 10, RP5C01_1_MONTH);  in rp5c01_set_time()
143 	rp5c01_write(priv, tm->tm_year / 10, RP5C01_10_YEAR);  in rp5c01_set_time()
144 	rp5c01_write(priv, tm->tm_year % 10, RP5C01_1_YEAR);  in rp5c01_set_time()
146 	rp5c01_unlock(priv);  in rp5c01_set_time()
147 	spin_unlock_irq(&priv->lock);  in rp5c01_set_time()
168 	struct rp5c01_priv *priv = dev_get_drvdata(dev);  in rp5c01_nvram_read()  local
171 	spin_lock_irq(&priv->lock);  in rp5c01_nvram_read()
176 		rp5c01_write(priv,  in rp5c01_nvram_read()
179 		data = rp5c01_read(priv, pos) << 4;  in rp5c01_nvram_read()
180 		rp5c01_write(priv,  in rp5c01_nvram_read()
183 		data |= rp5c01_read(priv, pos++);  in rp5c01_nvram_read()
184 		rp5c01_write(priv, RP5C01_MODE_TIMER_EN | RP5C01_MODE_MODE01,  in rp5c01_nvram_read()
189 	spin_unlock_irq(&priv->lock);  in rp5c01_nvram_read()
198 	struct rp5c01_priv *priv = dev_get_drvdata(dev);  in rp5c01_nvram_write()  local
201 	spin_lock_irq(&priv->lock);  in rp5c01_nvram_write()
206 		rp5c01_write(priv,  in rp5c01_nvram_write()
209 		rp5c01_write(priv, data >> 4, pos);  in rp5c01_nvram_write()
210 		rp5c01_write(priv,  in rp5c01_nvram_write()
213 		rp5c01_write(priv, data & 0xf, pos++);  in rp5c01_nvram_write()
214 		rp5c01_write(priv, RP5C01_MODE_TIMER_EN | RP5C01_MODE_MODE01,  in rp5c01_nvram_write()
218 	spin_unlock_irq(&priv->lock);  in rp5c01_nvram_write()
225 	struct rp5c01_priv *priv;  in rp5c01_rtc_probe()  local
233 	priv = devm_kzalloc(&dev->dev, sizeof(*priv), GFP_KERNEL);  in rp5c01_rtc_probe()
234 	if (!priv)  in rp5c01_rtc_probe()
237 	priv->regs = devm_ioremap(&dev->dev, res->start, resource_size(res));  in rp5c01_rtc_probe()
238 	if (!priv->regs)  in rp5c01_rtc_probe()
241 	sysfs_bin_attr_init(&priv->nvram_attr);  in rp5c01_rtc_probe()
242 	priv->nvram_attr.attr.name = "nvram";  in rp5c01_rtc_probe()
243 	priv->nvram_attr.attr.mode = S_IRUGO | S_IWUSR;  in rp5c01_rtc_probe()
244 	priv->nvram_attr.read = rp5c01_nvram_read;  in rp5c01_rtc_probe()
245 	priv->nvram_attr.write = rp5c01_nvram_write;  in rp5c01_rtc_probe()
246 	priv->nvram_attr.size = RP5C01_MODE;  in rp5c01_rtc_probe()
248 	spin_lock_init(&priv->lock);  in rp5c01_rtc_probe()
250 	platform_set_drvdata(dev, priv);  in rp5c01_rtc_probe()
256 	priv->rtc = rtc;  in rp5c01_rtc_probe()
258 	error = sysfs_create_bin_file(&dev->dev.kobj, &priv->nvram_attr);  in rp5c01_rtc_probe()
267 	struct rp5c01_priv *priv = platform_get_drvdata(dev);  in rp5c01_rtc_remove()  local
269 	sysfs_remove_bin_file(&dev->dev.kobj, &priv->nvram_attr);  in rp5c01_rtc_remove()