From 6a89a314ab107a12af08c71420c19a37a30fc2d3 Mon Sep 17 00:00:00 2001 From: Shawn Guo Date: Fri, 18 Jan 2013 15:57:46 +0800 Subject: gpio: devm_gpio_* support should not depend on GPIOLIB Some architectures (e.g. blackfin) provide gpio API without requiring GPIOLIB support (ARCH_WANT_OPTIONAL_GPIOLIB). devm_gpio_* functions should also work for these architectures, since they do not really depend on GPIOLIB. Add a new option GPIO_DEVRES (enabled by default) to control the build of devres.c. It also removes the empty version of devm_gpio_* functions for !GENERIC_GPIO build from linux/gpio.h, and moves the function declarations from asm-generic/gpio.h into linux/gpio.h. Signed-off-by: Shawn Guo Signed-off-by: Linus Walleij --- drivers/gpio/Kconfig | 3 +++ 1 file changed, 3 insertions(+) (limited to 'drivers/gpio/Kconfig') diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig index 682de754d63f..d9729322b1c7 100644 --- a/drivers/gpio/Kconfig +++ b/drivers/gpio/Kconfig @@ -30,6 +30,9 @@ config ARCH_REQUIRE_GPIOLIB Selecting this from the architecture code will cause the gpiolib code to always get built in. +config GPIO_DEVRES + def_bool y + depends on HAS_IOMEM menuconfig GPIOLIB -- cgit v1.2.2 From 1d09aaa6a325d55680506d585c7d5ee4744f5539 Mon Sep 17 00:00:00 2001 From: Mathias Nyman Date: Wed, 12 Dec 2012 17:42:38 +0200 Subject: gpio/lynxpoint: add chipset gpio driver. Add gpio support for Intel Lynxpoint chipset. Lynxpoint supports 94 gpio pins which can generate interrupts. Driver will fail requests for pins that are marked as owned by ACPI, or set in an alternate mode (non-gpio). Signed-off-by: Mathias Nyman Signed-off-by: Grant Likely --- drivers/gpio/Kconfig | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'drivers/gpio/Kconfig') diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig index 682de754d63f..3a6714539201 100644 --- a/drivers/gpio/Kconfig +++ b/drivers/gpio/Kconfig @@ -298,6 +298,14 @@ config GPIO_GE_FPGA and write pin state) for GPIO implemented in a number of GE single board computers. +config GPIO_LYNXPOINT + bool "Intel Lynxpoint GPIO support" + depends on ACPI + select IRQ_DOMAIN + help + driver for GPIO functionality on Intel Lynxpoint PCH chipset + Requires ACPI device enumeration code to set up a platform device. + comment "I2C GPIO expanders:" config GPIO_ARIZONA -- cgit v1.2.2