gpio: Kconfig: Enable Zynq GPIO driver using kconfig

Enable DM GPIO and ZYNQ GPIO using kconfig instead of the board
config file.

Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>

arch/arm/Kconfig

@@ -579,6 +579,7 @@ config ARCH_ZYNQ
 	select SPL_OF_CONTROL if SPL
 	select DM
 	select DM_ETH
+	select DM_GPIO
 	select SPL_DM if SPL
 	select DM_MMC
 	select DM_SPI

drivers/gpio/Kconfig

@@ -136,4 +136,11 @@ config MVEBU_GPIO
 	help
 	  Say yes here to support Marvell MVEBU (Armada XP/38x) GPIOs.
 
+config ZYNQ_GPIO
+	bool "Zynq GPIO driver"
+	depends on DM_GPIO && ARCH_ZYNQ
+	default y
+	help
+	  Supports GPIO access on Zynq SoC.
+
 endmenu

include/configs/zynq-common.h

@@ -39,8 +39,6 @@
 #define CONFIG_ARM_DCC
 #define CONFIG_ZYNQ_SERIAL
 
-#define CONFIG_ZYNQ_GPIO
-
 /* Ethernet driver */
 #if defined(CONFIG_ZYNQ_GEM)
 # define CONFIG_MII