[U-Boot] [PATCH v2 1/5] sunxi: move SUNXI_GPIO to Kconfig

[Andre Przywara <andre.przywara@arm.com>]

Probably for no particular reason SUNXI_GPIO was still defined the "old
way", in header files only.

Introduce SUNXI_GPIO to the Kconfig file in drivers/gpio to remove
another line from our dreadful config_whitelist.txt.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
---
 arch/arm/Kconfig               | 1 +
 drivers/gpio/Kconfig           | 6 ++++++
 include/configs/sunxi-common.h | 3 ---
 scripts/config_whitelist.txt   | 1 -
 4 files changed, 7 insertions(+), 4 deletions(-)

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 01ff57cf1b..97504e1218 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -926,6 +926,7 @@ config ARCH_SUNXI
 	select SPL_STACK_R if SPL
 	select SPL_SYS_MALLOC_SIMPLE if SPL
 	select SPL_SYS_THUMB_BUILD if !ARM64
+	select SUNXI_GPIO
 	select SYS_NS16550
 	select SYS_THUMB_BUILD if !ARM64
 	select USB if DISTRO_DEFAULTS
diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
index e36a8abc42..5a4d7c553e 100644
--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig
@@ -205,6 +205,12 @@ config SANDBOX_GPIO_COUNT
 	  of 'anonymous' GPIOs that do not belong to any device or bank.
 	  Select a suitable value depending on your needs.
 
+config SUNXI_GPIO
+	bool "Allwinner GPIO driver"
+	depends on ARCH_SUNXI
+	help
+	  Support the GPIO device in Allwinner SoCs.
+
 config XILINX_GPIO
 	bool "Xilinx GPIO driver"
 	depends on DM_GPIO
diff --git a/include/configs/sunxi-common.h b/include/configs/sunxi-common.h
index fceb812448..7be94ee7d1 100644
--- a/include/configs/sunxi-common.h
+++ b/include/configs/sunxi-common.h
@@ -257,9 +257,6 @@ extern int soft_i2c_gpio_scl;
 #endif
 #endif /* ifdef CONFIG_REQUIRE_SERIAL_CONSOLE */
 
-/* GPIO */
-#define CONFIG_SUNXI_GPIO
-
 #ifdef CONFIG_VIDEO_SUNXI
 /*
  * The amount of RAM to keep free at the top of RAM when relocating u-boot,
diff --git a/scripts/config_whitelist.txt b/scripts/config_whitelist.txt
index 22de7a4b6c..b5799cbef6 100644
--- a/scripts/config_whitelist.txt
+++ b/scripts/config_whitelist.txt
@@ -1863,7 +1863,6 @@ CONFIG_STV0991
 CONFIG_STV0991_HZ
 CONFIG_STV0991_HZ_CLOCK
 CONFIG_ST_SMI
-CONFIG_SUNXI_GPIO
 CONFIG_SUNXI_MAX_FB_SIZE
 CONFIG_SUVD3
 CONFIG_SXNI855T
-- 
2.14.5