[RFC PATCH] Add pin control driver for Wondermedia SoCS
From: Tony Prisk
Date: Thu Feb 14 2013 - 21:48:55 EST
Before I get all carried away and start filling in all the data for
this driver, I was hoping someone (or a few people) could review the
basic design in case it requires changes to the data structures.
This driver is based on pinctrl-bcm2835.c as it seems to be similar in
design. The pin controller on Wondermedia SoC's only allows each pin to
either be a GPIO or to be its 'alternate' function. Functions cannot be
remapped to any other pin.
I have seperated out the data from the code as there are several SoC's
to support and each has it's own variation of registers / pin layout.
I borrowed this part of the design from the Tegra pinctrl driver.
Tony Prisk (1):
pinctrl: gpio: vt8500: Add pin control driver for Wondermedia SoCs
arch/arm/Kconfig | 4 +-
arch/arm/boot/dts/wm8850-w70v2.dts | 15 +
arch/arm/boot/dts/wm8850.dtsi | 7 +-
arch/arm/mach-vt8500/Kconfig | 1 +
drivers/pinctrl/Kconfig | 10 +
drivers/pinctrl/Makefile | 2 +
drivers/pinctrl/pinctrl-wm8850.c | 166 +++++++++++
drivers/pinctrl/pinctrl-wmt.c | 565 ++++++++++++++++++++++++++++++++++++
drivers/pinctrl/pinctrl-wmt.h | 73 +++++
9 files changed, 840 insertions(+), 3 deletions(-)
create mode 100644 drivers/pinctrl/pinctrl-wm8850.c
create mode 100644 drivers/pinctrl/pinctrl-wmt.c
create mode 100644 drivers/pinctrl/pinctrl-wmt.h
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