132 	struct clk *rtc_ck;  member
162 		 * It takes around 2 rtc_ck clock cycles to enter in  in stm32_rtc_enter_init_mode()
164 		 * slowest rtc_ck frequency may be 32kHz and highest should be  in stm32_rtc_enter_init_mode()
194 	 * synchronised, it takes around 2 rtc_ck clock cycles  in stm32_rtc_wait_sync()
512 	 * takes around 2 rtc_ck clock cycles  in stm32_rtc_set_alarm()
643 	rate = clk_get_rate(rtc->rtc_ck);  in stm32_rtc_init()
650 		dev_err(&pdev->dev, "rtc_ck rate is too high: %dHz\n", rate);  in stm32_rtc_init()
678 		dev_warn(&pdev->dev, "rtc_ck is %s\n",  in stm32_rtc_init()
765 		rtc->rtc_ck = devm_clk_get(&pdev->dev, NULL);  in stm32_rtc_probe()
771 		rtc->rtc_ck = devm_clk_get(&pdev->dev, "rtc_ck");  in stm32_rtc_probe()
773 	if (IS_ERR(rtc->rtc_ck))  in stm32_rtc_probe()
774 		return dev_err_probe(&pdev->dev, PTR_ERR(rtc->rtc_ck), "no rtc_ck clock");  in stm32_rtc_probe()
782 	ret = clk_prepare_enable(rtc->rtc_ck);  in stm32_rtc_probe()
794 	 * rtc_ck parent clock has changed (so RTC prescalers need to be  in stm32_rtc_probe()
855 	clk_disable_unprepare(rtc->rtc_ck);  in stm32_rtc_probe()
882 	clk_disable_unprepare(rtc->rtc_ck);  in stm32_rtc_remove()