rtc: Kconfig: select REGMAP_I2C when necessary

[ Upstream commit 578c2b661e2b1b474ea3571a3c3c6d57bae89e8d ]

Some i2c RTC drivers are using regmap but are not selecting REGMAP_I2C
which may lead to build failures.

Link: https://lore.kernel.org/r/20200127221724.10160-2-alexandre.belloni@bootlin.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
index 738fa071884094d154c72c7e5fa2c68dd8296fe8..0f46e4a428896142cd5dbd788209f5836c1c54a4 100644 (file)
--- a/drivers/rtc/Kconfig
+++ b/drivers/rtc/Kconfig
@@ -240,6 +240,7 @@ config RTC_DRV_AS3722
 
 config RTC_DRV_DS1307
        tristate "Dallas/Maxim DS1307/37/38/39/40/41, ST M41T00, EPSON RX-8025, ISL12057"
+       select REGMAP_I2C
        help
          If you say yes here you get support for various compatible RTC
          chips (often with battery backup) connected with I2C. This driver
@@ -621,6 +622,7 @@ config RTC_DRV_RX8010
 
 config RTC_DRV_RX8581
        tristate "Epson RX-8571/RX-8581"
+       select REGMAP_I2C
        help
          If you say yes here you will get support for the Epson RX-8571/
          RX-8581.
@@ -648,6 +650,7 @@ config RTC_DRV_EM3027
 
 config RTC_DRV_RV3028
        tristate "Micro Crystal RV3028"
+       select REGMAP_I2C
        help
          If you say yes here you get support for the Micro Crystal
          RV3028.
@@ -677,6 +680,7 @@ config RTC_DRV_S5M
 
 config RTC_DRV_SD3078
     tristate "ZXW Shenzhen whwave SD3078"
+    select REGMAP_I2C
     help
       If you say yes here you get support for the ZXW Shenzhen whwave
       SD3078 RTC chips.