75 	struct mxc_rtc_data *pdata = dev_get_drvdata(dev);  in mxc_rtc_interrupt()  local
76 	void __iomem *ioaddr = pdata->ioaddr;  in mxc_rtc_interrupt()
81 	spin_lock_irqsave(&pdata->lock, flags);  in mxc_rtc_interrupt()
82 	if (clk_enable(pdata->clk)) {  in mxc_rtc_interrupt()
83 		spin_unlock_irqrestore(&pdata->lock, flags);  in mxc_rtc_interrupt()
93 			rtc_update_irq(pdata->rtc, 1, RTC_AF | RTC_IRQF);  in mxc_rtc_interrupt()
106 	clk_disable(pdata->clk);  in mxc_rtc_interrupt()
107 	spin_unlock_irqrestore(&pdata->lock, flags);  in mxc_rtc_interrupt()
115 static int mxc_rtc_lock(struct mxc_rtc_data *const pdata)  in mxc_rtc_lock()  argument
119 	spin_lock_irq(&pdata->lock);  in mxc_rtc_lock()
120 	ret = clk_enable(pdata->clk);  in mxc_rtc_lock()
122 		spin_unlock_irq(&pdata->lock);  in mxc_rtc_lock()
128 static int mxc_rtc_unlock(struct mxc_rtc_data *const pdata)  in mxc_rtc_unlock()  argument
130 	clk_disable(pdata->clk);  in mxc_rtc_unlock()
131 	spin_unlock_irq(&pdata->lock);  in mxc_rtc_unlock()
144 	struct mxc_rtc_data *pdata = dev_get_drvdata(dev);  in mxc_rtc_read_time()  local
145 	const int clk_failed = clk_enable(pdata->clk);  in mxc_rtc_read_time()
148 		const time64_t now = readl(pdata->ioaddr + SRTC_LPSCMR);  in mxc_rtc_read_time()
151 		clk_disable(pdata->clk);  in mxc_rtc_read_time()
166 	struct mxc_rtc_data *pdata = dev_get_drvdata(dev);  in mxc_rtc_set_time()  local
170 	ret = mxc_rtc_lock(pdata);  in mxc_rtc_set_time()
174 	writel(time, pdata->ioaddr + SRTC_LPSCMR);  in mxc_rtc_set_time()
175 	mxc_rtc_sync_lp_locked(dev, pdata->ioaddr);  in mxc_rtc_set_time()
176 	return mxc_rtc_unlock(pdata);  in mxc_rtc_set_time()
190 	struct mxc_rtc_data *pdata = dev_get_drvdata(dev);  in mxc_rtc_read_alarm()  local
191 	void __iomem *ioaddr = pdata->ioaddr;  in mxc_rtc_read_alarm()
194 	ret = mxc_rtc_lock(pdata);  in mxc_rtc_read_alarm()
200 	return mxc_rtc_unlock(pdata);  in mxc_rtc_read_alarm()
207 static void mxc_rtc_alarm_irq_enable_locked(struct mxc_rtc_data *pdata,  in mxc_rtc_alarm_irq_enable_locked()  argument
210 	u32 lp_cr = readl(pdata->ioaddr + SRTC_LPCR);  in mxc_rtc_alarm_irq_enable_locked()
217 	writel(lp_cr, pdata->ioaddr + SRTC_LPCR);  in mxc_rtc_alarm_irq_enable_locked()
222 	struct mxc_rtc_data *pdata = dev_get_drvdata(dev);  in mxc_rtc_alarm_irq_enable()  local
223 	int ret = mxc_rtc_lock(pdata);  in mxc_rtc_alarm_irq_enable()
228 	mxc_rtc_alarm_irq_enable_locked(pdata, enable);  in mxc_rtc_alarm_irq_enable()
229 	return mxc_rtc_unlock(pdata);  in mxc_rtc_alarm_irq_enable()
242 	struct mxc_rtc_data *pdata = dev_get_drvdata(dev);  in mxc_rtc_set_alarm()  local
243 	int ret = mxc_rtc_lock(pdata);  in mxc_rtc_set_alarm()
248 	writel((u32)time, pdata->ioaddr + SRTC_LPSAR);  in mxc_rtc_set_alarm()
251 	writel(SRTC_LPSR_ALP, pdata->ioaddr + SRTC_LPSR);  in mxc_rtc_set_alarm()
252 	mxc_rtc_sync_lp_locked(dev, pdata->ioaddr);  in mxc_rtc_set_alarm()
254 	mxc_rtc_alarm_irq_enable_locked(pdata, alrm->enabled);  in mxc_rtc_set_alarm()
255 	mxc_rtc_sync_lp_locked(dev, pdata->ioaddr);  in mxc_rtc_set_alarm()
256 	mxc_rtc_unlock(pdata);  in mxc_rtc_set_alarm()
281 	struct mxc_rtc_data *pdata;  in mxc_rtc_probe()  local
285 	pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);  in mxc_rtc_probe()
286 	if (!pdata)  in mxc_rtc_probe()
289 	pdata->ioaddr = devm_platform_ioremap_resource(pdev, 0);  in mxc_rtc_probe()
290 	if (IS_ERR(pdata->ioaddr))  in mxc_rtc_probe()
291 		return PTR_ERR(pdata->ioaddr);  in mxc_rtc_probe()
293 	ioaddr = pdata->ioaddr;  in mxc_rtc_probe()
295 	pdata->clk = devm_clk_get(&pdev->dev, NULL);  in mxc_rtc_probe()
296 	if (IS_ERR(pdata->clk)) {  in mxc_rtc_probe()
298 		return PTR_ERR(pdata->clk);  in mxc_rtc_probe()
301 	spin_lock_init(&pdata->lock);  in mxc_rtc_probe()
302 	pdata->irq = platform_get_irq(pdev, 0);  in mxc_rtc_probe()
303 	if (pdata->irq < 0)  in mxc_rtc_probe()
304 		return pdata->irq;  in mxc_rtc_probe()
307 	ret = dev_pm_set_wake_irq(&pdev->dev, pdata->irq);  in mxc_rtc_probe()
311 	ret = clk_prepare_enable(pdata->clk);  in mxc_rtc_probe()
325 		clk_disable_unprepare(pdata->clk);  in mxc_rtc_probe()
335 		clk_disable_unprepare(pdata->clk);  in mxc_rtc_probe()
339 	pdata->rtc = devm_rtc_allocate_device(&pdev->dev);  in mxc_rtc_probe()
340 	if (IS_ERR(pdata->rtc))  in mxc_rtc_probe()
341 		return PTR_ERR(pdata->rtc);  in mxc_rtc_probe()
343 	pdata->rtc->ops = &mxc_rtc_ops;  in mxc_rtc_probe()
344 	pdata->rtc->range_max = U32_MAX;  in mxc_rtc_probe()
346 	clk_disable(pdata->clk);  in mxc_rtc_probe()
347 	platform_set_drvdata(pdev, pdata);  in mxc_rtc_probe()
349 	    devm_request_irq(&pdev->dev, pdata->irq, mxc_rtc_interrupt, 0,  in mxc_rtc_probe()
353 		clk_unprepare(pdata->clk);  in mxc_rtc_probe()
357 	ret = rtc_register_device(pdata->rtc);  in mxc_rtc_probe()
359 		clk_unprepare(pdata->clk);  in mxc_rtc_probe()
366 	struct mxc_rtc_data *pdata = platform_get_drvdata(pdev);  in mxc_rtc_remove()  local
368 	clk_disable_unprepare(pdata->clk);  in mxc_rtc_remove()