[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-shark/irq.c b/arch/arm/mach-shark/irq.c
index 6cb67bd..b227052 100644
--- a/arch/arm/mach-shark/irq.c
+++ b/arch/arm/mach-shark/irq.c
@@ -69,7 +69,8 @@
 
 static struct irqaction cascade;
 
-static struct irqchip fb_chip = {
+static struct irq_chip fb_chip = {
+	.name	= "XT-PIC",
 	.ack	= shark_ack_8259A_irq,
 	.mask	= shark_disable_8259A_irq,
 	.unmask = shark_enable_8259A_irq,