openwrt/target/linux/brcm2708/patches-3.10/0162-bcm2708-select-NEED_MACH_GPIO_H.patch

From d1df97f2d10654ace3d14a77a2de866ce4cd8d4b Mon Sep 17 00:00:00 2001
From: Joerg Faschingbauer <jf@faschingbauer.co.at>
Date: Sat, 18 Jan 2014 23:15:07 +0100
Subject: [PATCH 162/174] bcm2708: select NEED_MACH_GPIO_H

makers out there use to use gpio_to_irq() in board setup code. it is
necessary that gpio_to_irq() be defined as a macro for this to work.

https://github.com/raspberrypi/linux/commit/01464226ac6089bd6a33f9899cc792c2355ebf39,
on its way towards devicetree, introduces a switch NEED_MACH_GPIO_H
that platforms have to set to get the macro definition of
gpio_to_irq() - otherwise, the gpiolib incarnation of gpio_to_irq() is
found instead which does not work from board code.

define NEED_MACH_GPIO_H to make things work again without any pain for
makers (though this clearly is in the way of devicetree).
---
 arch/arm/Kconfig | 1 +
 1 file changed, 1 insertion(+)

--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -367,6 +367,7 @@ config ARCH_BCM2708
 	select ARM_AMBA
 	select HAVE_CLK
 	select HAVE_SCHED_CLOCK
+	select NEED_MACH_GPIO_H
 	select NEED_MACH_MEMORY_H
 	select CLKDEV_LOOKUP
 	select ARCH_HAS_CPUFREQ