10  * checkpatch fixes and usage of rtc-lib code
14 #include <linux/rtc.h>
23 #define DRV_NAME        "rtc-ftrtc010"
26 MODULE_DESCRIPTION("RTC driver for Gemini SoC");
56  * Looks like the RTC in the Gemini SoC is (totaly) broken
57  * We can't read/write directly the time from RTC registers.
61  * the same thing, without the rtc-lib.c calls.
66 	struct ftrtc010_rtc *rtc = dev_get_drvdata(dev);  in ftrtc010_rtc_read_time()  local
71 	sec  = readl(rtc->rtc_base + FTRTC010_RTC_SECOND);  in ftrtc010_rtc_read_time()
72 	min  = readl(rtc->rtc_base + FTRTC010_RTC_MINUTE);  in ftrtc010_rtc_read_time()
73 	hour = readl(rtc->rtc_base + FTRTC010_RTC_HOUR);  in ftrtc010_rtc_read_time()
74 	days = readl(rtc->rtc_base + FTRTC010_RTC_DAYS);  in ftrtc010_rtc_read_time()
75 	offset = readl(rtc->rtc_base + FTRTC010_RTC_RECORD);  in ftrtc010_rtc_read_time()
86 	struct ftrtc010_rtc *rtc = dev_get_drvdata(dev);  in ftrtc010_rtc_set_time()  local
92 	sec = readl(rtc->rtc_base + FTRTC010_RTC_SECOND);  in ftrtc010_rtc_set_time()
93 	min = readl(rtc->rtc_base + FTRTC010_RTC_MINUTE);  in ftrtc010_rtc_set_time()
94 	hour = readl(rtc->rtc_base + FTRTC010_RTC_HOUR);  in ftrtc010_rtc_set_time()
95 	day = readl(rtc->rtc_base + FTRTC010_RTC_DAYS);  in ftrtc010_rtc_set_time()
99 	writel(offset, rtc->rtc_base + FTRTC010_RTC_RECORD);  in ftrtc010_rtc_set_time()
100 	writel(0x01, rtc->rtc_base + FTRTC010_RTC_CR);  in ftrtc010_rtc_set_time()
113 	struct ftrtc010_rtc *rtc;  in ftrtc010_rtc_probe()  local
118 	rtc = devm_kzalloc(&pdev->dev, sizeof(*rtc), GFP_KERNEL);  in ftrtc010_rtc_probe()
119 	if (unlikely(!rtc))  in ftrtc010_rtc_probe()
121 	platform_set_drvdata(pdev, rtc);  in ftrtc010_rtc_probe()
123 	rtc->pclk = devm_clk_get(dev, "PCLK");  in ftrtc010_rtc_probe()
124 	if (IS_ERR(rtc->pclk)) {  in ftrtc010_rtc_probe()
127 		ret = clk_prepare_enable(rtc->pclk);  in ftrtc010_rtc_probe()
133 	rtc->extclk = devm_clk_get(dev, "EXTCLK");  in ftrtc010_rtc_probe()
134 	if (IS_ERR(rtc->extclk)) {  in ftrtc010_rtc_probe()
137 		ret = clk_prepare_enable(rtc->extclk);  in ftrtc010_rtc_probe()
144 	rtc->rtc_irq = platform_get_irq(pdev, 0);  in ftrtc010_rtc_probe()
145 	if (rtc->rtc_irq < 0) {  in ftrtc010_rtc_probe()
146 		ret = rtc->rtc_irq;  in ftrtc010_rtc_probe()
156 	rtc->rtc_base = devm_ioremap(dev, res->start,  in ftrtc010_rtc_probe()
158 	if (!rtc->rtc_base) {  in ftrtc010_rtc_probe()
163 	rtc->rtc_dev = devm_rtc_allocate_device(dev);  in ftrtc010_rtc_probe()
164 	if (IS_ERR(rtc->rtc_dev)) {  in ftrtc010_rtc_probe()
165 		ret = PTR_ERR(rtc->rtc_dev);  in ftrtc010_rtc_probe()
169 	rtc->rtc_dev->ops = &ftrtc010_rtc_ops;  in ftrtc010_rtc_probe()
171 	sec  = readl(rtc->rtc_base + FTRTC010_RTC_SECOND);  in ftrtc010_rtc_probe()
172 	min  = readl(rtc->rtc_base + FTRTC010_RTC_MINUTE);  in ftrtc010_rtc_probe()
173 	hour = readl(rtc->rtc_base + FTRTC010_RTC_HOUR);  in ftrtc010_rtc_probe()
174 	days = readl(rtc->rtc_base + FTRTC010_RTC_DAYS);  in ftrtc010_rtc_probe()
176 	rtc->rtc_dev->range_min = (u64)days * 86400 + hour * 3600 +  in ftrtc010_rtc_probe()
178 	rtc->rtc_dev->range_max = U32_MAX + rtc->rtc_dev->range_min;  in ftrtc010_rtc_probe()
180 	ret = devm_request_irq(dev, rtc->rtc_irq, ftrtc010_rtc_interrupt,  in ftrtc010_rtc_probe()
185 	return devm_rtc_register_device(rtc->rtc_dev);  in ftrtc010_rtc_probe()
188 	clk_disable_unprepare(rtc->extclk);  in ftrtc010_rtc_probe()
190 	clk_disable_unprepare(rtc->pclk);  in ftrtc010_rtc_probe()
196 	struct ftrtc010_rtc *rtc = platform_get_drvdata(pdev);  in ftrtc010_rtc_remove()  local
198 	if (!IS_ERR(rtc->extclk))  in ftrtc010_rtc_remove()
199 		clk_disable_unprepare(rtc->extclk);  in ftrtc010_rtc_remove()
200 	if (!IS_ERR(rtc->pclk))  in ftrtc010_rtc_remove()
201 		clk_disable_unprepare(rtc->pclk);  in ftrtc010_rtc_remove()
205 	{ .compatible = "cortina,gemini-rtc" },