43 	struct rtc_device *rtc;  member
50 static inline uint32_t jz4740_rtc_reg_read(struct jz4740_rtc *rtc, size_t reg)  in jz4740_rtc_reg_read()  argument
52 	return readl(rtc->base + reg);  in jz4740_rtc_reg_read()
55 static int jz4740_rtc_wait_write_ready(struct jz4740_rtc *rtc)  in jz4740_rtc_wait_write_ready()  argument
61 		ctrl = jz4740_rtc_reg_read(rtc, JZ_REG_RTC_CTRL);  in jz4740_rtc_wait_write_ready()
67 static inline int jz4740_rtc_reg_write(struct jz4740_rtc *rtc, size_t reg,  in jz4740_rtc_reg_write()  argument
71 	ret = jz4740_rtc_wait_write_ready(rtc);  in jz4740_rtc_reg_write()
73 		writel(val, rtc->base + reg);  in jz4740_rtc_reg_write()
78 static int jz4740_rtc_ctrl_set_bits(struct jz4740_rtc *rtc, uint32_t mask,  in jz4740_rtc_ctrl_set_bits()  argument
85 	spin_lock_irqsave(&rtc->lock, flags);  in jz4740_rtc_ctrl_set_bits()
87 	ctrl = jz4740_rtc_reg_read(rtc, JZ_REG_RTC_CTRL);  in jz4740_rtc_ctrl_set_bits()
97 	ret = jz4740_rtc_reg_write(rtc, JZ_REG_RTC_CTRL, ctrl);  in jz4740_rtc_ctrl_set_bits()
99 	spin_unlock_irqrestore(&rtc->lock, flags);  in jz4740_rtc_ctrl_set_bits()
106 	struct jz4740_rtc *rtc = dev_get_drvdata(dev);  in jz4740_rtc_read_time()  local
114 	secs = jz4740_rtc_reg_read(rtc, JZ_REG_RTC_SEC);  in jz4740_rtc_read_time()
115 	secs2 = jz4740_rtc_reg_read(rtc, JZ_REG_RTC_SEC);  in jz4740_rtc_read_time()
119 		secs2 = jz4740_rtc_reg_read(rtc, JZ_REG_RTC_SEC);  in jz4740_rtc_read_time()
132 	struct jz4740_rtc *rtc = dev_get_drvdata(dev);  in jz4740_rtc_set_mmss()  local
134 	return jz4740_rtc_reg_write(rtc, JZ_REG_RTC_SEC, secs);  in jz4740_rtc_set_mmss()
139 	struct jz4740_rtc *rtc = dev_get_drvdata(dev);  in jz4740_rtc_read_alarm()  local
143 	secs = jz4740_rtc_reg_read(rtc, JZ_REG_RTC_SEC_ALARM);  in jz4740_rtc_read_alarm()
145 	ctrl = jz4740_rtc_reg_read(rtc, JZ_REG_RTC_CTRL);  in jz4740_rtc_read_alarm()
158 	struct jz4740_rtc *rtc = dev_get_drvdata(dev);  in jz4740_rtc_set_alarm()  local
163 	ret = jz4740_rtc_reg_write(rtc, JZ_REG_RTC_SEC_ALARM, secs);  in jz4740_rtc_set_alarm()
165 		ret = jz4740_rtc_ctrl_set_bits(rtc,  in jz4740_rtc_set_alarm()
173 	struct jz4740_rtc *rtc = dev_get_drvdata(dev);  in jz4740_rtc_alarm_irq_enable()  local
174 	return jz4740_rtc_ctrl_set_bits(rtc, JZ_RTC_CTRL_AF_IRQ, enable);  in jz4740_rtc_alarm_irq_enable()
187 	struct jz4740_rtc *rtc = data;  in jz4740_rtc_irq()  local
191 	ctrl = jz4740_rtc_reg_read(rtc, JZ_REG_RTC_CTRL);  in jz4740_rtc_irq()
199 	rtc_update_irq(rtc->rtc, 1, events);  in jz4740_rtc_irq()
201 	jz4740_rtc_ctrl_set_bits(rtc, JZ_RTC_CTRL_1HZ | JZ_RTC_CTRL_AF, false);  in jz4740_rtc_irq()
208 	struct jz4740_rtc *rtc = dev_get_drvdata(dev);  in jz4740_rtc_poweroff()  local
209 	jz4740_rtc_reg_write(rtc, JZ_REG_RTC_HIBERNATE, 1);  in jz4740_rtc_poweroff()
216 	struct jz4740_rtc *rtc;  in jz4740_rtc_probe()  local
219 	rtc = kzalloc(sizeof(*rtc), GFP_KERNEL);  in jz4740_rtc_probe()
220 	if (!rtc)  in jz4740_rtc_probe()
223 	rtc->irq = platform_get_irq(pdev, 0);  in jz4740_rtc_probe()
224 	if (rtc->irq < 0) {  in jz4740_rtc_probe()
230 	rtc->mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);  in jz4740_rtc_probe()
231 	if (!rtc->mem) {  in jz4740_rtc_probe()
237 	rtc->mem = request_mem_region(rtc->mem->start, resource_size(rtc->mem),  in jz4740_rtc_probe()
239 	if (!rtc->mem) {  in jz4740_rtc_probe()
245 	rtc->base = ioremap_nocache(rtc->mem->start, resource_size(rtc->mem));  in jz4740_rtc_probe()
246 	if (!rtc->base) {  in jz4740_rtc_probe()
252 	spin_lock_init(&rtc->lock);  in jz4740_rtc_probe()
254 	platform_set_drvdata(pdev, rtc);  in jz4740_rtc_probe()
258 	rtc->rtc = rtc_device_register(pdev->name, &pdev->dev, &jz4740_rtc_ops,  in jz4740_rtc_probe()
260 	if (IS_ERR(rtc->rtc)) {  in jz4740_rtc_probe()
261 		ret = PTR_ERR(rtc->rtc);  in jz4740_rtc_probe()
266 	ret = request_irq(rtc->irq, jz4740_rtc_irq, 0,  in jz4740_rtc_probe()
267 				pdev->name, rtc);  in jz4740_rtc_probe()
273 	scratchpad = jz4740_rtc_reg_read(rtc, JZ_REG_RTC_SCRATCHPAD);  in jz4740_rtc_probe()
275 		ret = jz4740_rtc_reg_write(rtc, JZ_REG_RTC_SCRATCHPAD, 0x12345678);  in jz4740_rtc_probe()
276 		ret = jz4740_rtc_reg_write(rtc, JZ_REG_RTC_SEC, 0);  in jz4740_rtc_probe()
286 	free_irq(rtc->irq, rtc);  in jz4740_rtc_probe()
288 	rtc_device_unregister(rtc->rtc);  in jz4740_rtc_probe()
291 	iounmap(rtc->base);  in jz4740_rtc_probe()
293 	release_mem_region(rtc->mem->start, resource_size(rtc->mem));  in jz4740_rtc_probe()
295 	kfree(rtc);  in jz4740_rtc_probe()
302 	struct jz4740_rtc *rtc = platform_get_drvdata(pdev);  in jz4740_rtc_remove()  local
304 	free_irq(rtc->irq, rtc);  in jz4740_rtc_remove()
306 	rtc_device_unregister(rtc->rtc);  in jz4740_rtc_remove()
308 	iounmap(rtc->base);  in jz4740_rtc_remove()
309 	release_mem_region(rtc->mem->start, resource_size(rtc->mem));  in jz4740_rtc_remove()
311 	kfree(rtc);  in jz4740_rtc_remove()
322 	struct jz4740_rtc *rtc = dev_get_drvdata(dev);  in jz4740_rtc_suspend()  local
325 		enable_irq_wake(rtc->irq);  in jz4740_rtc_suspend()
331 	struct jz4740_rtc *rtc = dev_get_drvdata(dev);  in jz4740_rtc_resume()  local
334 		disable_irq_wake(rtc->irq);  in jz4740_rtc_resume()