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()
80 	spin_lock(&pdata->lock);  in mxc_rtc_interrupt()
81 	if (clk_enable(pdata->clk)) {  in mxc_rtc_interrupt()
82 		spin_unlock(&pdata->lock);  in mxc_rtc_interrupt()
92 			rtc_update_irq(pdata->rtc, 1, RTC_AF | RTC_IRQF);  in mxc_rtc_interrupt()
105 	clk_disable(pdata->clk);  in mxc_rtc_interrupt()
106 	spin_unlock(&pdata->lock);  in mxc_rtc_interrupt()
114 static int mxc_rtc_lock(struct mxc_rtc_data *const pdata)  in mxc_rtc_lock()  argument
118 	spin_lock_irq(&pdata->lock);  in mxc_rtc_lock()
119 	ret = clk_enable(pdata->clk);  in mxc_rtc_lock()
121 		spin_unlock_irq(&pdata->lock);  in mxc_rtc_lock()
127 static int mxc_rtc_unlock(struct mxc_rtc_data *const pdata)  in mxc_rtc_unlock()  argument
129 	clk_disable(pdata->clk);  in mxc_rtc_unlock()
130 	spin_unlock_irq(&pdata->lock);  in mxc_rtc_unlock()
143 	struct mxc_rtc_data *pdata = dev_get_drvdata(dev);  in mxc_rtc_read_time()  local
144 	const int clk_failed = clk_enable(pdata->clk);  in mxc_rtc_read_time()
147 		const time64_t now = readl(pdata->ioaddr + SRTC_LPSCMR);  in mxc_rtc_read_time()
150 		clk_disable(pdata->clk);  in mxc_rtc_read_time()
165 	struct mxc_rtc_data *pdata = dev_get_drvdata(dev);  in mxc_rtc_set_time()  local
169 	ret = mxc_rtc_lock(pdata);  in mxc_rtc_set_time()
173 	writel(time, pdata->ioaddr + SRTC_LPSCMR);  in mxc_rtc_set_time()
174 	mxc_rtc_sync_lp_locked(dev, pdata->ioaddr);  in mxc_rtc_set_time()
175 	return mxc_rtc_unlock(pdata);  in mxc_rtc_set_time()
189 	struct mxc_rtc_data *pdata = dev_get_drvdata(dev);  in mxc_rtc_read_alarm()  local
190 	void __iomem *ioaddr = pdata->ioaddr;  in mxc_rtc_read_alarm()
193 	ret = mxc_rtc_lock(pdata);  in mxc_rtc_read_alarm()
199 	return mxc_rtc_unlock(pdata);  in mxc_rtc_read_alarm()
206 static void mxc_rtc_alarm_irq_enable_locked(struct mxc_rtc_data *pdata,  in mxc_rtc_alarm_irq_enable_locked()  argument
209 	u32 lp_cr = readl(pdata->ioaddr + SRTC_LPCR);  in mxc_rtc_alarm_irq_enable_locked()
216 	writel(lp_cr, pdata->ioaddr + SRTC_LPCR);  in mxc_rtc_alarm_irq_enable_locked()
221 	struct mxc_rtc_data *pdata = dev_get_drvdata(dev);  in mxc_rtc_alarm_irq_enable()  local
222 	int ret = mxc_rtc_lock(pdata);  in mxc_rtc_alarm_irq_enable()
227 	mxc_rtc_alarm_irq_enable_locked(pdata, enable);  in mxc_rtc_alarm_irq_enable()
228 	return mxc_rtc_unlock(pdata);  in mxc_rtc_alarm_irq_enable()
241 	struct mxc_rtc_data *pdata = dev_get_drvdata(dev);  in mxc_rtc_set_alarm()  local
242 	int ret = mxc_rtc_lock(pdata);  in mxc_rtc_set_alarm()
247 	writel((u32)time, pdata->ioaddr + SRTC_LPSAR);  in mxc_rtc_set_alarm()
250 	writel(SRTC_LPSR_ALP, pdata->ioaddr + SRTC_LPSR);  in mxc_rtc_set_alarm()
251 	mxc_rtc_sync_lp_locked(dev, pdata->ioaddr);  in mxc_rtc_set_alarm()
253 	mxc_rtc_alarm_irq_enable_locked(pdata, alrm->enabled);  in mxc_rtc_set_alarm()
254 	mxc_rtc_sync_lp_locked(dev, pdata->ioaddr);  in mxc_rtc_set_alarm()
255 	mxc_rtc_unlock(pdata);  in mxc_rtc_set_alarm()
280 	struct mxc_rtc_data *pdata;  in mxc_rtc_probe()  local
284 	pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);  in mxc_rtc_probe()
285 	if (!pdata)  in mxc_rtc_probe()
288 	pdata->ioaddr = devm_platform_ioremap_resource(pdev, 0);  in mxc_rtc_probe()
289 	if (IS_ERR(pdata->ioaddr))  in mxc_rtc_probe()
290 		return PTR_ERR(pdata->ioaddr);  in mxc_rtc_probe()
292 	ioaddr = pdata->ioaddr;  in mxc_rtc_probe()
294 	pdata->clk = devm_clk_get(&pdev->dev, NULL);  in mxc_rtc_probe()
295 	if (IS_ERR(pdata->clk)) {  in mxc_rtc_probe()
297 		return PTR_ERR(pdata->clk);  in mxc_rtc_probe()
300 	spin_lock_init(&pdata->lock);  in mxc_rtc_probe()
301 	pdata->irq = platform_get_irq(pdev, 0);  in mxc_rtc_probe()
302 	if (pdata->irq < 0)  in mxc_rtc_probe()
303 		return pdata->irq;  in mxc_rtc_probe()
306 	ret = dev_pm_set_wake_irq(&pdev->dev, pdata->irq);  in mxc_rtc_probe()
310 	ret = clk_prepare_enable(pdata->clk);  in mxc_rtc_probe()
324 		clk_disable_unprepare(pdata->clk);  in mxc_rtc_probe()
334 		clk_disable_unprepare(pdata->clk);  in mxc_rtc_probe()
338 	pdata->rtc = devm_rtc_allocate_device(&pdev->dev);  in mxc_rtc_probe()
339 	if (IS_ERR(pdata->rtc)) {  in mxc_rtc_probe()
340 		clk_disable_unprepare(pdata->clk);  in mxc_rtc_probe()
341 		return PTR_ERR(pdata->rtc);  in mxc_rtc_probe()
344 	pdata->rtc->ops = &mxc_rtc_ops;  in mxc_rtc_probe()
345 	pdata->rtc->range_max = U32_MAX;  in mxc_rtc_probe()
347 	clk_disable(pdata->clk);  in mxc_rtc_probe()
348 	platform_set_drvdata(pdev, pdata);  in mxc_rtc_probe()
350 	    devm_request_irq(&pdev->dev, pdata->irq, mxc_rtc_interrupt, 0,  in mxc_rtc_probe()
354 		clk_unprepare(pdata->clk);  in mxc_rtc_probe()
358 	ret = devm_rtc_register_device(pdata->rtc);  in mxc_rtc_probe()
360 		clk_unprepare(pdata->clk);  in mxc_rtc_probe()
367 	struct mxc_rtc_data *pdata = platform_get_drvdata(pdev);  in mxc_rtc_remove()  local
369 	clk_disable_unprepare(pdata->clk);  in mxc_rtc_remove()