On Mon, Nov 11, 2024 at 04:41:44PM +0100, Philipp Rosenberger wrote: > The PCF2127, PCF2129, and PCA2129 RTCs have the battery switch-over function > enabled by default. However, the newer PCF2131 RTC has the opposite default > behavior, requiring explicit enablement for battery backup. Subject is wrong. > > Add support for the `nxp,battery-backed` device tree property to enable battery > switch-over in standard mode for the rtc-pcf2127 driver. If this property is set > and no battery switch-over mode is already configured, the driver will enable > standard mode; otherwise, existing configurations remain unchanged. > > Signed-off-by: Philipp Rosenberger <p.rosenberger@xxxxxxxxxx> > --- > drivers/rtc/rtc-pcf2127.c | 76 +++++++++++++++++++++++++++++++-------- > 1 file changed, 61 insertions(+), 15 deletions(-)