[ARM] 3739/1: genirq updates:  irq_chip, add and use irq_chip.name

Patch from David Brownell

ARM genirq cleanups/updates:

    - Start switching platforms to newer APIs
        * use "irq_chip" name, not "irqchip"
        * providing irq_chip.name

    - Show irq_chip.name in /proc/interrupts, like on x86.

This update a bit more than half of the ARM code.  The irq_chip.name
values were chosen to match docs (if I have them) or be otherwise
obvious ("FPGA", "CPLD", or matching the code).

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/mach-pxa/mainstone.c b/arch/arm/mach-pxa/mainstone.c
index 21ddf3d..a7e9b96 100644
--- a/arch/arm/mach-pxa/mainstone.c
+++ b/arch/arm/mach-pxa/mainstone.c
@@ -64,7 +64,8 @@
 	MST_INTMSKENA = (mainstone_irq_enabled |= (1 << mainstone_irq));
 }
 
-static struct irqchip mainstone_irq_chip = {
+static struct irq_chip mainstone_irq_chip = {
+	.name		= "FPGA",
 	.ack		= mainstone_mask_irq,
 	.mask		= mainstone_mask_irq,
 	.unmask		= mainstone_unmask_irq,