From 6c17aa0138a6c55364936bbaa35846e09a4db53b Mon Sep 17 00:00:00 2001 From: Simon Guinot Date: Thu, 29 Aug 2013 22:56:56 +0200 Subject: gpio: add GPIO support for F71882FG and F71889F This patch adds support for the GPIOs found on the Fintek super-I/O chips F71882FG and F71889F. A super-I/O is a legacy I/O controller embedded on x86 motherboards. It is used to connect the low-bandwidth devices. Among others functions the F71882FG/F71889F provides: a parallel port, two serial ports, a keyboard controller, an hardware monitoring controller and some GPIO pins. Note that this super-I/Os are embedded on some Atom-based LaCie NASes. The GPIOs are used to control the LEDs and the hard drive power. Changes since v3: - Use request_muxed_region to protect the I/O ports against concurrent accesses. Changes since v2: - Remove useless NULL setters for driver data. Changes since v1: - Enhance the commit message by describing what is a Super-I/O. - Use self-explanatory names for the GPIO register macros. - Add a comment to explain the platform device and driver registration. - Fix gpio_get when GPIO is configured in input mode. I only had the hardware to check this mode recently... Signed-off-by: Simon Guinot Signed-off-by: Linus Walleij --- 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 4b7ba53e96db..349b16160ac9 100644 --- a/drivers/gpio/Kconfig +++ b/drivers/gpio/Kconfig @@ -146,6 +146,16 @@ config GPIO_MM_LANTIQ (EBU) found on Lantiq SoCs. The gpios are output only as they are created by attaching a 16bit latch to the bus. +config GPIO_F7188X + tristate "F71882FG and F71889F GPIO support" + depends on X86 + help + This option enables support for GPIOs found on Fintek Super-I/O + chips F71882FG and F71889F. + + To compile this driver as a module, choose M here: the module will + be called f7188x-gpio. + config GPIO_MPC5200 def_bool y depends on PPC_MPC52xx -- cgit v1.2.3