rtc: ds3232: add temperature support
DS3232/DS3234 has the temperature registers with a resolution of 0.25
degree celsius. This enables to get the value through hwmon.
# cat /sys/class/hwmon/hwmon0/temp1_input
37250
Signed-off-by: Kirill Esipov <yesipov@gmail.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
index 0e5044c..d0e4b4a 100644
--- a/drivers/rtc/Kconfig
+++ b/drivers/rtc/Kconfig
@@ -802,6 +802,14 @@
This driver can also be built as a module. If so, the module
will be called rtc-ds3232.
+config RTC_DRV_DS3232_HWMON
+ bool "HWMON support for Dallas/Maxim DS3232/DS3234"
+ depends on RTC_DRV_DS3232 && HWMON && !(RTC_DRV_DS3232=y && HWMON=m)
+ default y
+ help
+ Say Y here if you want to expose temperature sensor data on
+ rtc-ds3232
+
config RTC_DRV_PCF2127
tristate "NXP PCF2127"
depends on RTC_I2C_AND_SPI