From 800e69fbd2faea906cabd10ddb77e36410f2bd9c Mon Sep 17 00:00:00 2001 From: "Ira W. Snyder" Date: Wed, 7 Apr 2010 10:08:01 +0200 Subject: gpio: Add support for Janz VMOD-TTL Digital IO module The Janz VMOD-TTL is a MODULbus daughterboard which fits onto any MODULbus carrier board. It essentially consists of some various logic and a Zilog Z8536 CIO Counter/Timer and Parallel IO Unit. The board must be physically configured with jumpers to enable a user to drive output signals. I am only interested in outputs, so I have made this driver as simple as possible. It only supports a very minimal subset of the features provided by the Z8536 chip. Signed-off-by: Ira W. Snyder Signed-off-by: Samuel Ortiz --- drivers/gpio/Kconfig | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'drivers/gpio/Kconfig') diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig index 56eb0c59c512..0e9c16b5bbce 100644 --- a/drivers/gpio/Kconfig +++ b/drivers/gpio/Kconfig @@ -325,4 +325,14 @@ config GPIO_UCB1400 To compile this driver as a module, choose M here: the module will be called ucb1400_gpio. +comment "MODULbus GPIO expanders:" + +config GPIO_JANZ_TTL + tristate "Janz VMOD-TTL Digital IO Module" + depends on MFD_JANZ_CMODIO + help + This enables support for the Janz VMOD-TTL Digital IO module. + This driver provides support for driving the pins in output + mode only. Input mode is not supported. + endif -- cgit v1.2.2