97 	int ret;  in wm831x_rtc_add_randomness()  local
105 	ret = wm831x_reg_read(wm831x, WM831X_RTC_WRITE_COUNTER);  in wm831x_rtc_add_randomness()
106 	if (ret >= 0) {  in wm831x_rtc_add_randomness()
107 		reg = ret;  in wm831x_rtc_add_randomness()
111 			 ret);  in wm831x_rtc_add_randomness()
123 	int ret;  in wm831x_rtc_readtime()  local
127 	ret = wm831x_reg_read(wm831x, WM831X_RTC_CONTROL);  in wm831x_rtc_readtime()
128 	if (ret < 0) {  in wm831x_rtc_readtime()
129 		dev_err(dev, "Failed to read RTC control: %d\n", ret);  in wm831x_rtc_readtime()
130 		return ret;  in wm831x_rtc_readtime()
132 	if (!(ret & WM831X_RTC_VALID)) {  in wm831x_rtc_readtime()
141 		ret = wm831x_bulk_read(wm831x, WM831X_RTC_TIME_1,  in wm831x_rtc_readtime()
143 		if (ret != 0)  in wm831x_rtc_readtime()
146 		ret = wm831x_bulk_read(wm831x, WM831X_RTC_TIME_1,  in wm831x_rtc_readtime()
148 		if (ret != 0)  in wm831x_rtc_readtime()
174 	int ret;  in wm831x_rtc_settime()  local
179 	ret = wm831x_reg_write(wm831x, WM831X_RTC_TIME_1,  in wm831x_rtc_settime()
181 	if (ret < 0) {  in wm831x_rtc_settime()
182 		dev_err(dev, "Failed to write TIME_1: %d\n", ret);  in wm831x_rtc_settime()
183 		return ret;  in wm831x_rtc_settime()
186 	ret = wm831x_reg_write(wm831x, WM831X_RTC_TIME_2, time & 0xffff);  in wm831x_rtc_settime()
187 	if (ret < 0) {  in wm831x_rtc_settime()
188 		dev_err(dev, "Failed to write TIME_2: %d\n", ret);  in wm831x_rtc_settime()
189 		return ret;  in wm831x_rtc_settime()
198 		ret = wm831x_reg_read(wm831x, WM831X_RTC_CONTROL);  in wm831x_rtc_settime()
199 		if (ret < 0)  in wm831x_rtc_settime()
200 			ret = WM831X_RTC_SYNC_BUSY;  in wm831x_rtc_settime()
201 	} while (!(ret & WM831X_RTC_SYNC_BUSY) &&  in wm831x_rtc_settime()
204 	if (ret & WM831X_RTC_SYNC_BUSY) {  in wm831x_rtc_settime()
212 	ret = wm831x_rtc_readtime(dev, &new_tm);  in wm831x_rtc_settime()
213 	if (ret < 0)  in wm831x_rtc_settime()
214 		return ret;  in wm831x_rtc_settime()
233 	int ret;  in wm831x_rtc_readalarm()  local
237 	ret = wm831x_bulk_read(wm831x_rtc->wm831x, WM831X_RTC_ALARM_1,  in wm831x_rtc_readalarm()
239 	if (ret != 0) {  in wm831x_rtc_readalarm()
240 		dev_err(dev, "Failed to read alarm time: %d\n", ret);  in wm831x_rtc_readalarm()
241 		return ret;  in wm831x_rtc_readalarm()
248 	ret = wm831x_reg_read(wm831x_rtc->wm831x, WM831X_RTC_CONTROL);  in wm831x_rtc_readalarm()
249 	if (ret < 0) {  in wm831x_rtc_readalarm()
250 		dev_err(dev, "Failed to read RTC control: %d\n", ret);  in wm831x_rtc_readalarm()
251 		return ret;  in wm831x_rtc_readalarm()
254 	if (ret & WM831X_RTC_ALM_ENA)  in wm831x_rtc_readalarm()
282 	int ret;  in wm831x_rtc_setalarm()  local
287 	ret = wm831x_rtc_stop_alarm(wm831x_rtc);  in wm831x_rtc_setalarm()
288 	if (ret < 0) {  in wm831x_rtc_setalarm()
289 		dev_err(dev, "Failed to stop alarm: %d\n", ret);  in wm831x_rtc_setalarm()
290 		return ret;  in wm831x_rtc_setalarm()
293 	ret = wm831x_reg_write(wm831x, WM831X_RTC_ALARM_1,  in wm831x_rtc_setalarm()
295 	if (ret < 0) {  in wm831x_rtc_setalarm()
296 		dev_err(dev, "Failed to write ALARM_1: %d\n", ret);  in wm831x_rtc_setalarm()
297 		return ret;  in wm831x_rtc_setalarm()
300 	ret = wm831x_reg_write(wm831x, WM831X_RTC_ALARM_2, time & 0xffff);  in wm831x_rtc_setalarm()
301 	if (ret < 0) {  in wm831x_rtc_setalarm()
302 		dev_err(dev, "Failed to write ALARM_2: %d\n", ret);  in wm831x_rtc_setalarm()
303 		return ret;  in wm831x_rtc_setalarm()
307 		ret = wm831x_rtc_start_alarm(wm831x_rtc);  in wm831x_rtc_setalarm()
308 		if (ret < 0) {  in wm831x_rtc_setalarm()
309 			dev_err(dev, "Failed to start alarm: %d\n", ret);  in wm831x_rtc_setalarm()
310 			return ret;  in wm831x_rtc_setalarm()
350 	int ret, enable;  in wm831x_rtc_suspend()  local
357 	ret = wm831x_set_bits(wm831x_rtc->wm831x, WM831X_RTC_CONTROL,  in wm831x_rtc_suspend()
359 	if (ret != 0)  in wm831x_rtc_suspend()
360 		dev_err(dev, "Failed to update RTC alarm: %d\n", ret);  in wm831x_rtc_suspend()
371 	int ret;  in wm831x_rtc_resume()  local
374 		ret = wm831x_rtc_start_alarm(wm831x_rtc);  in wm831x_rtc_resume()
375 		if (ret != 0)  in wm831x_rtc_resume()
376 			dev_err(dev, "Failed to restart RTC alarm: %d\n", ret);  in wm831x_rtc_resume()
386 	int ret;  in wm831x_rtc_freeze()  local
388 	ret = wm831x_set_bits(wm831x_rtc->wm831x, WM831X_RTC_CONTROL,  in wm831x_rtc_freeze()
390 	if (ret != 0)  in wm831x_rtc_freeze()
391 		dev_err(dev, "Failed to stop RTC alarm: %d\n", ret);  in wm831x_rtc_freeze()
406 	int ret = 0;  in wm831x_rtc_probe()  local
415 	ret = wm831x_reg_read(wm831x, WM831X_RTC_CONTROL);  in wm831x_rtc_probe()
416 	if (ret < 0) {  in wm831x_rtc_probe()
417 		dev_err(&pdev->dev, "Failed to read RTC control: %d\n", ret);  in wm831x_rtc_probe()
418 		return ret;  in wm831x_rtc_probe()
420 	if (ret & WM831X_RTC_ALM_ENA)  in wm831x_rtc_probe()
432 	ret = rtc_register_device(wm831x_rtc->rtc);  in wm831x_rtc_probe()
433 	if (ret)  in wm831x_rtc_probe()
434 		return ret;  in wm831x_rtc_probe()
436 	ret = devm_request_threaded_irq(&pdev->dev, alm_irq, NULL,  in wm831x_rtc_probe()
441 	if (ret != 0) {  in wm831x_rtc_probe()
443 			alm_irq, ret);  in wm831x_rtc_probe()