ARM: 7083/1: rewrite U300 GPIO to use gpiolib

This rewrites the U300 GPIO so as to use gpiolib and
struct gpio_chip instead of just generic GPIO, hiding
all the platform specifics and passing in GPIO chip
variant as platform data at runtime instead of the
compiletime kludges.

As a result <mach/gpio.h> is now empty for U300 and
using just defaults.

Cc: Grant Likely <grant.likely@secretlab.ca>
Cc: Debian kernel maintainers <debian-kernel@lists.debian.org>
Cc: Arnaud Patard <arnaud.patard@rtp-net.org>
Reported-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 1 insertions, 0 deletions

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 2c71a8f3535a..05589e85c180 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -836,6 +836,7 @@ config ARCH_U300
         select CLKDEV_LOOKUP
         select HAVE_MACH_CLKDEV
         select GENERIC_GPIO
+        select ARCH_REQUIRE_GPIOLIB
         help
           Support for ST-Ericsson U300 series mobile platforms.