65 static void pic32_rtc_alarm_clk_enable(struct pic32_rtc_dev *pdata,  in pic32_rtc_alarm_clk_enable()  argument
70 	spin_lock_irqsave(&pdata->alarm_lock, flags);  in pic32_rtc_alarm_clk_enable()
72 		if (!pdata->alarm_clk_enabled) {  in pic32_rtc_alarm_clk_enable()
73 			clk_enable(pdata->clk);  in pic32_rtc_alarm_clk_enable()
74 			pdata->alarm_clk_enabled = true;  in pic32_rtc_alarm_clk_enable()
77 		if (pdata->alarm_clk_enabled) {  in pic32_rtc_alarm_clk_enable()
78 			clk_disable(pdata->clk);  in pic32_rtc_alarm_clk_enable()
79 			pdata->alarm_clk_enabled = false;  in pic32_rtc_alarm_clk_enable()
82 	spin_unlock_irqrestore(&pdata->alarm_lock, flags);  in pic32_rtc_alarm_clk_enable()
87 	struct pic32_rtc_dev *pdata = (struct pic32_rtc_dev *)id;  in pic32_rtc_alarmirq()  local
89 	clk_enable(pdata->clk);  in pic32_rtc_alarmirq()
90 	rtc_update_irq(pdata->rtc, 1, RTC_AF | RTC_IRQF);  in pic32_rtc_alarmirq()
91 	clk_disable(pdata->clk);  in pic32_rtc_alarmirq()
93 	pic32_rtc_alarm_clk_enable(pdata, false);  in pic32_rtc_alarmirq()
100 	struct pic32_rtc_dev *pdata = dev_get_drvdata(dev);  in pic32_rtc_setaie()  local
101 	void __iomem *base = pdata->reg_base;  in pic32_rtc_setaie()
103 	clk_enable(pdata->clk);  in pic32_rtc_setaie()
109 	clk_disable(pdata->clk);  in pic32_rtc_setaie()
111 	pic32_rtc_alarm_clk_enable(pdata, enabled);  in pic32_rtc_setaie()
118 	struct pic32_rtc_dev *pdata = dev_get_drvdata(dev);  in pic32_rtc_setfreq()  local
119 	void __iomem *base = pdata->reg_base;  in pic32_rtc_setfreq()
121 	clk_enable(pdata->clk);  in pic32_rtc_setfreq()
127 	clk_disable(pdata->clk);  in pic32_rtc_setfreq()
134 	struct pic32_rtc_dev *pdata = dev_get_drvdata(dev);  in pic32_rtc_gettime()  local
135 	void __iomem *base = pdata->reg_base;  in pic32_rtc_gettime()
138 	clk_enable(pdata->clk);  in pic32_rtc_gettime()
167 	clk_disable(pdata->clk);  in pic32_rtc_gettime()
173 	struct pic32_rtc_dev *pdata = dev_get_drvdata(dev);  in pic32_rtc_settime()  local
174 	void __iomem *base = pdata->reg_base;  in pic32_rtc_settime()
178 	clk_enable(pdata->clk);  in pic32_rtc_settime()
185 	clk_disable(pdata->clk);  in pic32_rtc_settime()
192 	struct pic32_rtc_dev *pdata = dev_get_drvdata(dev);  in pic32_rtc_getalarm()  local
194 	void __iomem *base = pdata->reg_base;  in pic32_rtc_getalarm()
197 	clk_enable(pdata->clk);  in pic32_rtc_getalarm()
218 	clk_disable(pdata->clk);  in pic32_rtc_getalarm()
224 	struct pic32_rtc_dev *pdata = dev_get_drvdata(dev);  in pic32_rtc_setalarm()  local
226 	void __iomem *base = pdata->reg_base;  in pic32_rtc_setalarm()
228 	clk_enable(pdata->clk);  in pic32_rtc_setalarm()
236 	clk_disable(pdata->clk);  in pic32_rtc_setalarm()
242 	struct pic32_rtc_dev *pdata = dev_get_drvdata(dev);  in pic32_rtc_proc()  local
243 	void __iomem *base = pdata->reg_base;  in pic32_rtc_proc()
246 	clk_enable(pdata->clk);  in pic32_rtc_proc()
252 	clk_disable(pdata->clk);  in pic32_rtc_proc()
265 static void pic32_rtc_enable(struct pic32_rtc_dev *pdata, int en)  in pic32_rtc_enable()  argument
267 	void __iomem *base = pdata->reg_base;  in pic32_rtc_enable()
272 	clk_enable(pdata->clk);  in pic32_rtc_enable()
284 	clk_disable(pdata->clk);  in pic32_rtc_enable()
289 	struct pic32_rtc_dev *pdata = platform_get_drvdata(pdev);  in pic32_rtc_remove()  local
292 	clk_unprepare(pdata->clk);  in pic32_rtc_remove()
293 	pdata->clk = NULL;  in pic32_rtc_remove()
300 	struct pic32_rtc_dev *pdata;  in pic32_rtc_probe()  local
303 	pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);  in pic32_rtc_probe()
304 	if (!pdata)  in pic32_rtc_probe()
307 	platform_set_drvdata(pdev, pdata);  in pic32_rtc_probe()
309 	pdata->alarm_irq = platform_get_irq(pdev, 0);  in pic32_rtc_probe()
310 	if (pdata->alarm_irq < 0)  in pic32_rtc_probe()
311 		return pdata->alarm_irq;  in pic32_rtc_probe()
313 	pdata->reg_base = devm_platform_ioremap_resource(pdev, 0);  in pic32_rtc_probe()
314 	if (IS_ERR(pdata->reg_base))  in pic32_rtc_probe()
315 		return PTR_ERR(pdata->reg_base);  in pic32_rtc_probe()
317 	pdata->clk = devm_clk_get(&pdev->dev, NULL);  in pic32_rtc_probe()
318 	if (IS_ERR(pdata->clk)) {  in pic32_rtc_probe()
320 		ret = PTR_ERR(pdata->clk);  in pic32_rtc_probe()
321 		pdata->clk = NULL;  in pic32_rtc_probe()
325 	spin_lock_init(&pdata->alarm_lock);  in pic32_rtc_probe()
327 	pdata->rtc = devm_rtc_allocate_device(&pdev->dev);  in pic32_rtc_probe()
328 	if (IS_ERR(pdata->rtc))  in pic32_rtc_probe()
329 		return PTR_ERR(pdata->rtc);  in pic32_rtc_probe()
331 	clk_prepare_enable(pdata->clk);  in pic32_rtc_probe()
333 	pic32_rtc_enable(pdata, 1);  in pic32_rtc_probe()
337 	pdata->rtc->ops = &pic32_rtcops;  in pic32_rtc_probe()
338 	pdata->rtc->range_min = RTC_TIMESTAMP_BEGIN_2000;  in pic32_rtc_probe()
339 	pdata->rtc->range_max = RTC_TIMESTAMP_END_2099;  in pic32_rtc_probe()
341 	ret = rtc_register_device(pdata->rtc);  in pic32_rtc_probe()
345 	pdata->rtc->max_user_freq = 128;  in pic32_rtc_probe()
348 	ret = devm_request_irq(&pdev->dev, pdata->alarm_irq,  in pic32_rtc_probe()
350 			       dev_name(&pdev->dev), pdata);  in pic32_rtc_probe()
353 			"IRQ %d error %d\n", pdata->alarm_irq, ret);  in pic32_rtc_probe()
357 	clk_disable(pdata->clk);  in pic32_rtc_probe()
362 	pic32_rtc_enable(pdata, 0);  in pic32_rtc_probe()
363 	clk_disable_unprepare(pdata->clk);  in pic32_rtc_probe()