kernel/drivers/rtc/rtc-pcf85063.c, branch linux-5.1.y

rtc: pcf85063: remove dead code

2019-03-02T20:55:47Z

Some of defines are not in use since 7b5768486a910532885f01b9d2dad4818c8b3be1. Remove it to make the code easier to read and understand. Signed-off-by: Alexey Roslyakov Signed-off-by: Alexandre Belloni

rtc: pcf85063: set xtal load capacitance from DT

2019-01-22T17:57:10Z

Add support for specifying the xtal load capacitance in the DT node. The pcf85063 supports xtal load capacitance of 7pF or 12.5pF. If the rtc has the wrong configuration the time will drift several hours/week. The driver use the default value 7pF. The DT may specify either 7000fF or 12500fF. (The DT uses femto Farad to avoid decimal numbers). Other values are warned and the driver uses the default value. Signed-off-by: Sam Ravnborg Cc: Alessandro Zummo Cc: Alexandre Belloni Cc: Urs Fässler Signed-off-by: Alexandre Belloni

rtc: pcf85063: preserve control register value between stop and start

2018-07-28T12:49:25Z

Fix a bug that caused the Control_1 register to get zeroed whenever the RTC time is set. The problem occurred between stopping and starting the RTC clock, wherein the return value of a successful I2C write function would get written to the register. Also update variables of the start and stop functions to be more consistent with the rest of the driver. Signed-off-by: Alvin Šipraga Signed-off-by: Alexandre Belloni

rtc: pcf85063: fix clearing bits in pcf85063_start_clock

2018-03-17T13:20:57Z

Bit clear operation was missing ~ Signed-off-by: Michael McCormick Signed-off-by: Alexandre Belloni

rtc: pcf85063: remove useless indirection

2018-03-17T13:20:47Z

pcf85063_get_datetime and pcf85063_set_datetime are only used after casting dev to an i2c_client. Remove that useless indirection. Signed-off-by: Alexandre Belloni

rtc: pcf85063: stop validating rtc_time in .read_time

2018-03-17T13:20:46Z

The RTC core is always calling rtc_valid_tm after the read_time callback. It is not necessary to call it before returning from the callback. Signed-off-by: Alexandre Belloni

rtc: pcf85063: do not register a RTC device if chip is not present

2016-11-04T22:08:59Z

Add a sanity check to see if chip is present. If we can not communicate with the chip there is no point in registering a RTC device. Signed-off-by: Mirza Krak Signed-off-by: Alexandre Belloni

rtc: pcf85063: Add support for the PCF85063A device

2016-07-19T17:11:54Z

The current rtc-pcf85063 driver only supports the PCF85063TP device. Using the existing driver on a PCF85063A will result in the time being set correctly into the RTC, but the RTC is held in the stopped state. Therefore, the time will no longer advance and no error is indicated. The PCF85063A device has a bigger memory map than the PCF85063TP. The existing driver make use of an address rollover condition, but the rollover point is different in the two devices. Signed-off-by: Chris DeBruin Signed-off-by: Alexandre Belloni

rtc: pcf85063: fix year range

2016-07-19T17:11:12Z

The year range is not validated properly As the driver has been mainlined in 2014, it is not an issue to stop handling dates between 1970 and 2000 with the benefit of handling dates up to 2100. Signed-off-by: Alexandre Belloni

rtc: pcf85063: remove struct pcf85063

2016-03-14T16:08:30Z

No members of struct pcf85063 are used anymore, remove the whole structure. Reviewed-by: Juergen Borleis Signed-off-by: Alexandre Belloni