From 6048a3dd2371c58611ea0ab8b306f8f1469399ae Mon Sep 17 00:00:00 2001 From: Cory Maccarrone Date: Tue, 19 Jan 2010 11:22:45 +0100 Subject: mfd: Add HTCPLD driver This change introduces a driver for the HTC PLD chip found on some smartphones, such as the HTC Wizard and HTC Herald. It works through the I2C bus and acts as a GPIO extender. Specifically: * it can have several sub-devices, each with its own I2C address * Each sub-device provides 8 output and 8 input pins * The chip attaches to one GPIO to signal when any of the input GPIOs change -- at which point all chips must be scanned for changes This driver implements the GPIOs throught the kernel's GPIO and IRQ framework. This allows any GPIO-servicing drivers to operate on htcpld pins, such as the gpio-keys and gpio-leds drivers. Signed-off-by: Cory Maccarrone Signed-off-by: Samuel Ortiz --- drivers/mfd/Kconfig | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'drivers/mfd/Kconfig') diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index d63ab2eec66..9bcd447e71e 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -78,6 +78,15 @@ config HTC_PASIC3 HTC Magician devices, respectively. Actual functionality is handled by the leds-pasic3 and ds1wm drivers. +config HTC_I2CPLD + bool "HTC I2C PLD chip support" + depends on I2C=y + help + If you say yes here you get support for the supposed CPLD + found on omap850 HTC devices like the HTC Wizard and HTC Herald. + This device provides input and output GPIOs through an I2C + interface to one or more sub-chips. + config UCB1400_CORE tristate "Philips UCB1400 Core driver" depends on AC97_BUS -- cgit v1.2.3