button: gpio: add DM_GPIO dependency

The gpio-button driver depends on DM_GPIO, add it to Kconfig to avoid
build errors.

Signed-off-by: Michael Walle <michael@walle.cc>
Reviewed-by: Stefan Roese <sr@denx.de>

diff --git a/drivers/button/Kconfig b/drivers/button/Kconfig
index 6db3c5e93a48557e8cd882fbba9252cf91efa304..8ce2de37d62a2791c10ccb508936574e162ea7b1 100644 (file)
--- a/drivers/button/Kconfig
+++ b/drivers/button/Kconfig
@@ -20,6 +20,7 @@ config BUTTON_ADC
 config BUTTON_GPIO
        bool "Button gpio"
        depends on BUTTON
+       depends on DM_GPIO
        help
          Enable support for buttons which are connected to GPIO lines. These
          GPIOs may be on the SoC or some other device which provides GPIOs.