[U-Boot] [PATCH v4 1/3] gpio: Kconfig: add CONFIG_AT91_GPIO option

[Wenyou Yang]

The CONFIG_AT91_GPIO option is used to select AT91 PIO GPIO driver.

Signed-off-by: Wenyou Yang <wenyou.yang at atmel.com>
Reviewed-by: Simon Glass <sjg at chromium.org>
Reviewed-by: Andreas Bießmann <andreas at biessmann.org>
---

Changes in v4: None
Changes in v3: None
Changes in v2: None

 drivers/gpio/Kconfig | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
index 8d9ab5237e..c06534257c 100644
--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig
@@ -28,6 +28,19 @@ config DWAPB_GPIO
 	help
 	  Support for the Designware APB GPIO driver.
 
+config AT91_GPIO
+	bool "AT91 PIO GPIO driver"
+	depends on DM_GPIO
+	default n
+	help
+	  Say yes here to select AT91 PIO GPIO driver. AT91 PIO
+	  controller manages up to 32 fully programmable input/output
+	  lines. Each I/O line may be dedicated as a general-purpose
+	  I/O or be assigned to a function of an embedded peripheral.
+	  The assignment to a function of an embedded peripheral is
+	  the responsibility of AT91 Pinctrl driver. This driver is
+	  responsible for the general-purpose I/O.
+
 config ATMEL_PIO4
 	bool "ATMEL PIO4 driver"
 	depends on DM_GPIO
-- 
2.11.0