From 73317712d9277407b726917de7c4e6d5a4b7df99 Mon Sep 17 00:00:00 2001 From: Robert Jarzmik Date: Sat, 21 Nov 2015 19:04:49 +0100 Subject: pinctrl: pxa: pxa2xx: add pin control skeleton Add a pincontrol driver for pxa2xx architecture, encompassing all pxa25x and pxa27x variants. This is only the pin muxing part of the driver. One specific consideration is also the memory space (MMIO), which is intertwined with the GPIO registers. To make things worse, the GPIO direction register also affect pin muxing, as it chooses the "kind" of pin, ie. the 4 output functions or 4 input functions. The mapping between pinctrl notions and PXA Technical Reference Manual is as follows : - a pin is obviously a pin - a group is also a pin, ie. group P101 is the pin 101 - a mux function is an alternate function (ie. gpio-in, gpio-out, MMCLK, BTRTS, etc ...) The individual architecture (pxa27x, pxa25x) instantiate a pin control by providing a table of pins, each pin being provided a list of PXA_FUNCTION (alternate functions). Signed-off-by: Robert Jarzmik Signed-off-by: Linus Walleij --- drivers/pinctrl/pxa/Kconfig | 9 +++++++++ 1 file changed, 9 insertions(+) create mode 100644 drivers/pinctrl/pxa/Kconfig (limited to 'drivers/pinctrl/pxa/Kconfig') diff --git a/drivers/pinctrl/pxa/Kconfig b/drivers/pinctrl/pxa/Kconfig new file mode 100644 index 000000000000..13e24d7c45c7 --- /dev/null +++ b/drivers/pinctrl/pxa/Kconfig @@ -0,0 +1,9 @@ +if (ARCH_PXA || COMPILE_TEST) + +config PINCTRL_PXA + bool + select PINMUX + select PINCONF + select GENERIC_PINCONF + +endif -- cgit v1.2.3