[PATCH 0/2] selftest: rtc: Add rtc feature detection and rtc file check

1. In order to make rtctest more explicit and robust, we propose to use RTC_PARAM_GET ioctl interface to check rtc alarm feature state before running alarm related tests.

2. The rtctest requires the read permission on /dev/rtc0. The rtctest will be skipped if the /dev/rtc0 is not readable.

Joseph Jang (2): selftest: rtc: Add to check rtc alarm status for alarm related test selftest: rtc: Check if could access /dev/rtc0 before testing

tools/testing/selftests/rtc/Makefile | 2 +- tools/testing/selftests/rtc/rtctest.c | 71 ++++++++++++++++++++++++++- 2 files changed, 71 insertions(+), 2 deletions(-)