34 /* Standard read/write functions if platform does not provide overrides */
37  * ds1685_read - read a value from an rtc register.
39  * @reg: the register address to read.
130 		   (rtc->read(rtc, RTC_CTRL_A) & ~(RTC_CTRL_A_DV0)));  in ds1685_rtc_switch_to_bank0()
141 		   (rtc->read(rtc, RTC_CTRL_A) | RTC_CTRL_A_DV0));  in ds1685_rtc_switch_to_bank1()
153  *    is read again in a loop until INCR is inactive.
162 		   (rtc->read(rtc, RTC_CTRL_B) | RTC_CTRL_B_SET));  in ds1685_rtc_begin_data_access()
164 	/* Read Ext Ctrl 4A and check the INCR bit to avoid a lockout. */  in ds1685_rtc_begin_data_access()
165 	while (rtc->read(rtc, RTC_EXT_CTRL_4A) & RTC_CTRL_4A_INCR)  in ds1685_rtc_begin_data_access()
188 		   (rtc->read(rtc, RTC_CTRL_B) & ~(RTC_CTRL_B_SET)));  in ds1685_rtc_end_data_access()
202  * called first before calling this function, else data will be read out of
208 	ssn[0] = rtc->read(rtc, RTC_BANK1_SSN_MODEL);  in ds1685_rtc_get_ssn()
209 	ssn[1] = rtc->read(rtc, RTC_BANK1_SSN_BYTE_1);  in ds1685_rtc_get_ssn()
210 	ssn[2] = rtc->read(rtc, RTC_BANK1_SSN_BYTE_2);  in ds1685_rtc_get_ssn()
211 	ssn[3] = rtc->read(rtc, RTC_BANK1_SSN_BYTE_3);  in ds1685_rtc_get_ssn()
212 	ssn[4] = rtc->read(rtc, RTC_BANK1_SSN_BYTE_4);  in ds1685_rtc_get_ssn()
213 	ssn[5] = rtc->read(rtc, RTC_BANK1_SSN_BYTE_5);  in ds1685_rtc_get_ssn()
214 	ssn[6] = rtc->read(rtc, RTC_BANK1_SSN_BYTE_6);  in ds1685_rtc_get_ssn()
215 	ssn[7] = rtc->read(rtc, RTC_BANK1_SSN_CRC);  in ds1685_rtc_get_ssn()
221 /* Read/Set Time & Alarm functions */
237 	seconds = rtc->read(rtc, RTC_SECS);  in ds1685_rtc_read_time()
238 	minutes = rtc->read(rtc, RTC_MINS);  in ds1685_rtc_read_time()
239 	hours   = rtc->read(rtc, RTC_HRS);  in ds1685_rtc_read_time()
240 	wday    = rtc->read(rtc, RTC_WDAY);  in ds1685_rtc_read_time()
241 	mday    = rtc->read(rtc, RTC_MDAY);  in ds1685_rtc_read_time()
242 	month   = rtc->read(rtc, RTC_MONTH);  in ds1685_rtc_read_time()
243 	years   = rtc->read(rtc, RTC_YEAR);  in ds1685_rtc_read_time()
244 	century = rtc->read(rtc, RTC_CENTURY);  in ds1685_rtc_read_time()
245 	ctrlb   = rtc->read(rtc, RTC_CTRL_B);  in ds1685_rtc_read_time()
322 	ctrlb = rtc->read(rtc, RTC_CTRL_B);  in ds1685_rtc_set_time()
362 	seconds	= rtc->read(rtc, RTC_SECS_ALARM);  in ds1685_rtc_read_alarm()
363 	minutes	= rtc->read(rtc, RTC_MINS_ALARM);  in ds1685_rtc_read_alarm()
364 	hours	= rtc->read(rtc, RTC_HRS_ALARM);  in ds1685_rtc_read_alarm()
365 	mday	= rtc->read(rtc, RTC_MDAY_ALARM);  in ds1685_rtc_read_alarm()
366 	ctrlb	= rtc->read(rtc, RTC_CTRL_B);  in ds1685_rtc_read_alarm()
367 	ctrlc	= rtc->read(rtc, RTC_CTRL_C);  in ds1685_rtc_read_alarm()
462 	ctrlb = rtc->read(rtc, RTC_CTRL_B);  in ds1685_rtc_set_alarm()
465 	/* Read ctrlc to clear RTC_CTRL_C_AF. */  in ds1685_rtc_set_alarm()
466 	rtc->read(rtc, RTC_CTRL_C);  in ds1685_rtc_set_alarm()
472 	ctrlb = rtc->read(rtc, RTC_CTRL_B);  in ds1685_rtc_set_alarm()
485 		ctrlb = rtc->read(rtc, RTC_CTRL_B);  in ds1685_rtc_set_alarm()
513 		rtc->write(rtc, RTC_CTRL_B, (rtc->read(rtc, RTC_CTRL_B) |  in ds1685_rtc_alarm_irq_enable()
516 		rtc->write(rtc, RTC_CTRL_B, (rtc->read(rtc, RTC_CTRL_B) &  in ds1685_rtc_alarm_irq_enable()
519 	/* Read Control C to clear all the flag bits. */  in ds1685_rtc_alarm_irq_enable()
520 	rtc->read(rtc, RTC_CTRL_C);  in ds1685_rtc_alarm_irq_enable()
541 	ctrl4a = rtc->read(rtc, RTC_EXT_CTRL_4A);  in ds1685_rtc_extended_irq()
542 	ctrl4b = rtc->read(rtc, RTC_EXT_CTRL_4B);  in ds1685_rtc_extended_irq()
552 			   (rtc->read(rtc, RTC_EXT_CTRL_4B) &  in ds1685_rtc_extended_irq()
567 			   (rtc->read(rtc, RTC_EXT_CTRL_4B) |  in ds1685_rtc_extended_irq()
643 	ctrlb = rtc->read(rtc, RTC_CTRL_B);  in ds1685_rtc_irq_handler()
644 	ctrlc = rtc->read(rtc, RTC_CTRL_C);  in ds1685_rtc_irq_handler()
729 	/* Read all the relevant data from the control registers. */  in ds1685_rtc_proc()
732 	ctrla = rtc->read(rtc, RTC_CTRL_A);  in ds1685_rtc_proc()
733 	ctrlb = rtc->read(rtc, RTC_CTRL_B);  in ds1685_rtc_proc()
734 	ctrlc = rtc->read(rtc, RTC_CTRL_C);  in ds1685_rtc_proc()
735 	ctrld = rtc->read(rtc, RTC_CTRL_D);  in ds1685_rtc_proc()
736 	ctrl4a = rtc->read(rtc, RTC_EXT_CTRL_4A);  in ds1685_rtc_proc()
737 	ctrl4b = rtc->read(rtc, RTC_EXT_CTRL_4B);  in ds1685_rtc_proc()
827 	/* Read NVRAM in time and bank0 registers. */  in ds1685_nvram_read()
831 			*buf++ = rtc->read(rtc, (NVRAM_TIME_BASE + pos++));  in ds1685_nvram_read()
833 			*buf++ = rtc->read(rtc, (NVRAM_BANK0_BASE + pos++));  in ds1685_nvram_read()
843 			   (rtc->read(rtc, RTC_EXT_CTRL_4A) |  in ds1685_nvram_read()
852 		/* Read NVRAM in bank1 registers. */  in ds1685_nvram_read()
857 			 * before each read. */  in ds1685_nvram_read()
861 			*buf++ = rtc->read(rtc, RTC_BANK1_RAM_DATA_PORT);  in ds1685_nvram_read()
868 			   (rtc->read(rtc, RTC_EXT_CTRL_4A) &  in ds1685_nvram_read()
910 			   (rtc->read(rtc, RTC_EXT_CTRL_4A) |  in ds1685_nvram_write()
924 			 * before each read. */  in ds1685_nvram_write()
935 			   (rtc->read(rtc, RTC_EXT_CTRL_4A) &  in ds1685_nvram_write()
962 	ctrld = rtc->read(rtc, RTC_CTRL_D);  in ds1685_rtc_sysfs_battery_show()
983 	ctrl4a = rtc->read(rtc, RTC_EXT_CTRL_4A);  in ds1685_rtc_sysfs_auxbatt_show()
1102 	/* Platform read function, else default if mmio setup */  in ds1685_rtc_probe()
1104 		rtc->read = pdata->plat_read;  in ds1685_rtc_probe()
1107 			rtc->read = ds1685_read;  in ds1685_rtc_probe()
1136 	ctrla = rtc->read(rtc, RTC_CTRL_A);  in ds1685_rtc_probe()
1155 		   (rtc->read(rtc, RTC_EXT_CTRL_4B) | RTC_CTRL_4B_E32K));  in ds1685_rtc_probe()
1159 		   (rtc->read(rtc, RTC_CTRL_B) | RTC_CTRL_B_SET));  in ds1685_rtc_probe()
1161 	/* Read Ext Ctrl 4A and check the INCR bit to avoid a lockout. */  in ds1685_rtc_probe()
1162 	while (rtc->read(rtc, RTC_EXT_CTRL_4A) & RTC_CTRL_4A_INCR)  in ds1685_rtc_probe()
1169 	ctrlb = rtc->read(rtc, RTC_CTRL_B);  in ds1685_rtc_probe()
1187 		hours = rtc->read(rtc, RTC_HRS);  in ds1685_rtc_probe()
1206 		hours = rtc->read(rtc, RTC_HRS_ALARM);  in ds1685_rtc_probe()
1224 		   (rtc->read(rtc, RTC_CTRL_B) & ~(RTC_CTRL_B_SET)));  in ds1685_rtc_probe()
1227 	if (!(rtc->read(rtc, RTC_CTRL_D) & RTC_CTRL_D_VRT))  in ds1685_rtc_probe()
1232 	if (!(rtc->read(rtc, RTC_EXT_CTRL_4A) & RTC_CTRL_4A_VRT2))  in ds1685_rtc_probe()
1236 	/* Read Ctrl B and clear PIE/AIE/UIE. */  in ds1685_rtc_probe()
1238 		   (rtc->read(rtc, RTC_CTRL_B) & ~(RTC_CTRL_B_PAU_MASK)));  in ds1685_rtc_probe()
1241 	rtc->read(rtc, RTC_CTRL_C);  in ds1685_rtc_probe()
1243 	/* Read Ctrl 4B and clear RIE/WIE/KSE. */  in ds1685_rtc_probe()
1245 		   (rtc->read(rtc, RTC_EXT_CTRL_4B) & ~(RTC_CTRL_4B_RWK_MASK)));  in ds1685_rtc_probe()
1249 		   (rtc->read(rtc, RTC_EXT_CTRL_4A) & ~(RTC_CTRL_4A_RWK_MASK)));  in ds1685_rtc_probe()
1256 		   (rtc->read(rtc, RTC_EXT_CTRL_4B) | RTC_CTRL_4B_KSE));  in ds1685_rtc_probe()
1333 	/* Read Ctrl B and clear PIE/AIE/UIE. */  in ds1685_rtc_remove()
1335 		   (rtc->read(rtc, RTC_CTRL_B) &  in ds1685_rtc_remove()
1339 	rtc->read(rtc, RTC_CTRL_C);  in ds1685_rtc_remove()
1341 	/* Read Ctrl 4B and clear RIE/WIE/KSE. */  in ds1685_rtc_remove()
1343 		   (rtc->read(rtc, RTC_EXT_CTRL_4B) &  in ds1685_rtc_remove()
1348 		   (rtc->read(rtc, RTC_EXT_CTRL_4A) &  in ds1685_rtc_remove()
1400 		ctrla = rtc->read(rtc, RTC_CTRL_A);  in ds1685_rtc_poweroff()
1406 		 * Read Control 4A and check the status of the auxillary  in ds1685_rtc_poweroff()
1411 		ctrl4a = rtc->read(rtc, RTC_EXT_CTRL_4A);  in ds1685_rtc_poweroff()
1423 			ctrl4b = rtc->read(rtc, RTC_EXT_CTRL_4B);  in ds1685_rtc_poweroff()