This adds a new ioctl interface allowing to get and set extended parameters on RTCs. While its main goal is to support backup switch mode, it also intends to fix a long time issue. Until now, it was not possible to know what features were supported by an RTC before actually trying to make use of it and see that succeed or fail. In order to make tests more reliable and allow userspace to take the correct decision, the features are now exposed. Alexandre Belloni (7): rtc: add alarm related features rtc: add parameter ioctl rtc: expose correction feature rtc: add correction parameter rtc: add BSM parameter rtc: rv3028: add BSM support rtc: rv3032: allow setting BSM drivers/rtc/class.c | 3 ++ drivers/rtc/dev.c | 65 +++++++++++++++++++++++++++++++++ drivers/rtc/rtc-rv3028.c | 73 +++++++++++++++++++++++++++++++++++++ drivers/rtc/rtc-rv3032.c | 78 ++++++++++++++++++++++++++++++++++++++++ include/linux/rtc.h | 2 ++ include/uapi/linux/rtc.h | 33 +++++++++++++++-- 6 files changed, 252 insertions(+), 2 deletions(-) -- 2.31.1
