I have Intel Denvetron based device on which /dev/rtc and rtc0 are missing.
Error that I see at boot up -
[ 12.041110] rtc_cmos 00:02: RTC can wake from S4
[ 12.098168] rtc_cmos: probe of 00:02 failed with error -16
I have following configs in my kernel.
CONFIG_RTC_LIB=y
CONFIG_RTC_MC146818_LIB=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_SYSTOHC=y
CONFIG_RTC_NVMEM=y
CONFIG_RTC_INTF_SYSFS=y
CONFIG_RTC_INTF_PROC=y
CONFIG_RTC_INTF_DEV=y
CONFIG_RTC_I2C_AND_SPI=y
CONFIG_RTC_DRV_CMOS=y
Could not see any existing topic in forum on this.