Merge tag 'rtc-4.9' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux

[cascardo/linux.git] / drivers / rtc / Kconfig

diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
index d1e0807..e859d14 100644 (file)
--- a/drivers/rtc/Kconfig
+++ b/drivers/rtc/Kconfig
@@ -208,14 +208,14 @@ config RTC_DRV_AS3722
          will be called rtc-as3722.
 
 config RTC_DRV_DS1307
-       tristate "Dallas/Maxim DS1307/37/38/39/40, ST M41T00, EPSON RX-8025"
+       tristate "Dallas/Maxim DS1307/37/38/39/40, ST M41T00, EPSON RX-8025, ISL12057"
        help
          If you say yes here you get support for various compatible RTC
          chips (often with battery backup) connected with I2C. This driver
          should handle DS1307, DS1337, DS1338, DS1339, DS1340, ST M41T00,
-         EPSON RX-8025 and probably other chips. In some cases the RTC
-         must already have been initialized (by manufacturing or a
-         bootloader).
+         EPSON RX-8025, Intersil ISL12057 and probably other chips. In some
+         cases the RTC must already have been initialized (by manufacturing or
+         a bootloader).
 
          The first seven registers on these chips hold an RTC, and other
          registers may add features such as NVRAM, a trickle charger for
@@ -234,6 +234,20 @@ config RTC_DRV_DS1307_HWMON
          Say Y here if you want to expose temperature sensor data on
          rtc-ds1307 (only DS3231)
 
+config RTC_DRV_DS1307_CENTURY
+       bool "Century bit support for rtc-ds1307"
+       depends on RTC_DRV_DS1307
+       default n
+       help
+         The DS1307 driver suffered from a bug where it was enabling the
+         century bit inconditionnally but never used it when reading the time.
+         It made the driver unable to support dates beyond 2099.
+         Setting this option will add proper support for the century bit but if
+         the time was previously set using a kernel predating this option,
+         reading the date will return a date in the next century.
+         To solve that, you could boot a kernel without this option set, set
+         the RTC date and then boot a kernel with this option set.
+
 config RTC_DRV_DS1374
        tristate "Dallas/Maxim DS1374"
        help
@@ -374,16 +388,6 @@ config RTC_DRV_ISL12022
          This driver can also be built as a module. If so, the module
          will be called rtc-isl12022.
 
-config RTC_DRV_ISL12057
-       select REGMAP_I2C
-       tristate "Intersil ISL12057"
-       help
-         If you say yes here you get support for the Intersil ISL12057
-         I2C RTC chip.
-
-         This driver can also be built as a module. If so, the module
-         will be called rtc-isl12057.
-
 config RTC_DRV_X1205
        tristate "Xicor/Intersil X1205"
        help
@@ -661,6 +665,7 @@ config RTC_DRV_DS1343
          will be called rtc-ds1343.
 
 config RTC_DRV_DS1347
+       select REGMAP_SPI
        tristate "Dallas/Maxim DS1347"
        help
          If you say yes here you get support for the
@@ -1201,7 +1206,7 @@ comment "on-CPU RTC drivers"
 
 config RTC_DRV_ASM9260
        tristate "Alphascale asm9260 RTC"
-       depends on MACH_ASM9260
+       depends on MACH_ASM9260 || COMPILE_TEST
        help
          If you say yes here you get support for the RTC on the
          Alphascale asm9260 SoC.
@@ -1241,6 +1246,9 @@ config RTC_DRV_IMXDI
 config RTC_DRV_OMAP
        tristate "TI OMAP Real Time Clock"
        depends on ARCH_OMAP || ARCH_DAVINCI || COMPILE_TEST
+       depends on OF
+       depends on PINCTRL
+       select GENERIC_PINCONF
        help
          Say "yes" here to support the on chip real time clock
          present on TI OMAP1, AM33xx, DA8xx/OMAP-L13x, AM43xx and DRA7xx.