Input: add keypad driver for keys interfaced to TCA6416
This patch implements a simple Keypad driver that functions
as an I2C client. It handles key press events for keys
connected to TCA6416 I2C based IO expander.
Signed-off-by: Sriramakrishnan <srk@ti.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
diff --git a/drivers/input/keyboard/Kconfig b/drivers/input/keyboard/Kconfig
index a829338..3525f53 100644
--- a/drivers/input/keyboard/Kconfig
+++ b/drivers/input/keyboard/Kconfig
@@ -179,6 +179,22 @@
To compile this driver as a module, choose M here: the
module will be called gpio_keys.
+config KEYBOARD_TCA6416
+ tristate "TCA6416 Keypad Support"
+ depends on I2C
+ help
+ This driver implements basic keypad functionality
+ for keys connected through TCA6416 IO expander
+
+ Say Y here if your device has keys connected to
+ TCA6416 IO expander. Your board-specific setup logic
+ must also provide pin-mask details(of which TCA6416 pins
+ are used for keypad).
+
+ If enabled the complete TCA6416 device will be managed through
+ this driver.
+
+
config KEYBOARD_MATRIX
tristate "GPIO driven matrix keypad support"
depends on GENERIC_GPIO