From 445c02076f1e60d2ee51503bf1288ef9f3bc8809 Mon Sep 17 00:00:00 2001 From: Akinobu Mita Date: Mon, 25 Jan 2016 00:22:16 +0900 Subject: rtc: ds1307: add temperature sensor support for ds3231 DS3231 has the temperature registers with a resolution of 0.25 degree celsius. This enables to get the value through hwmon. # cat /sys/class/i2c-adapter/i2c-2/2-0068/hwmon/hwmon0/temp1_input 21000 Signed-off-by: Akinobu Mita Acked-by: Guenter Roeck Signed-off-by: Alexandre Belloni --- drivers/rtc/Kconfig | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'drivers/rtc/Kconfig') diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig index 27f6ac46c596..d47ad96132bf 100644 --- a/drivers/rtc/Kconfig +++ b/drivers/rtc/Kconfig @@ -212,6 +212,15 @@ config RTC_DRV_DS1307 This driver can also be built as a module. If so, the module will be called rtc-ds1307. +config RTC_DRV_DS1307_HWMON + bool "HWMON support for rtc-ds1307" + depends on RTC_DRV_DS1307 && HWMON + depends on !(RTC_DRV_DS1307=y && HWMON=m) + default y + help + Say Y here if you want to expose temperature sensor data on + rtc-ds1307 (only DS3231) + config RTC_DRV_DS1374 tristate "Dallas/Maxim DS1374" help -- cgit v1.2.1