From b64333ce769cbcc6a4dbd0325d9b1da95c6929ff Mon Sep 17 00:00:00 2001 From: Ray Jui Date: Mon, 9 Mar 2015 13:45:00 -0700 Subject: pinctrl: cygnus: add gpio/pinconf driver This adds the initial support of the Broadcom Cygnus GPIO/PINCONF driver that supports all 3 GPIO controllers on Cygnus including the ASIU GPIO controller, the chipCommonG GPIO controller, and the always-on GPIO controller. Basic PINCONF configurations such as bias pull up/down, and drive strength are also supported in this driver. Pins from the ASIU GPIO controller can be individually muxed to GPIO function, through interaction with the Cygnus IOMUX controller Signed-off-by: Ray Jui Reviewed-by: Scott Branden Tested-by: Dmitry Torokhov Signed-off-by: Linus Walleij --- drivers/pinctrl/bcm/Kconfig | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) (limited to 'drivers/pinctrl/bcm/Kconfig') diff --git a/drivers/pinctrl/bcm/Kconfig b/drivers/pinctrl/bcm/Kconfig index eb1320152a87..cd11d4d9ad58 100644 --- a/drivers/pinctrl/bcm/Kconfig +++ b/drivers/pinctrl/bcm/Kconfig @@ -20,6 +20,28 @@ config PINCTRL_BCM2835 select PINMUX select PINCONF +config PINCTRL_CYGNUS_GPIO + bool "Broadcom Cygnus GPIO (with PINCONF) driver" + depends on OF_GPIO && ARCH_BCM_CYGNUS + select GPIOLIB_IRQCHIP + select PINCONF + select GENERIC_PINCONF + default ARCH_BCM_CYGNUS + help + Say yes here to enable the Broadcom Cygnus GPIO driver. + + The Broadcom Cygnus SoC has 3 GPIO controllers including the ASIU + GPIO controller (ASIU), the chipCommonG GPIO controller (CCM), and + the always-ON GPIO controller (CRMU/AON). All 3 GPIO controllers are + supported by this driver. + + All 3 Cygnus GPIO controllers support basic PINCONF functions such + as bias pull up, pull down, and drive strength configurations, when + these pins are muxed to GPIO. + + Pins from the ASIU GPIO can be individually muxed to GPIO function, + through interaction with the Cygnus IOMUX controller. + config PINCTRL_CYGNUS_MUX bool "Broadcom Cygnus IOMUX driver" depends on (ARCH_BCM_CYGNUS || COMPILE_TEST) -- cgit v1.2.3