[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-sa1100/irq.c b/arch/arm/mach-sa1100/irq.c
index 2891b8c..b55b90a 100644
--- a/arch/arm/mach-sa1100/irq.c
+++ b/arch/arm/mach-sa1100/irq.c
@@ -95,7 +95,8 @@
 	return 0;
 }
 
-static struct irqchip sa1100_low_gpio_chip = {
+static struct irq_chip sa1100_low_gpio_chip = {
+	.name		= "GPIO-l",
 	.ack		= sa1100_low_gpio_ack,
 	.mask		= sa1100_low_gpio_mask,
 	.unmask		= sa1100_low_gpio_unmask,
@@ -178,7 +179,8 @@
 	return 0;
 }
 
-static struct irqchip sa1100_high_gpio_chip = {
+static struct irq_chip sa1100_high_gpio_chip = {
+	.name		= "GPIO-h",
 	.ack		= sa1100_high_gpio_ack,
 	.mask		= sa1100_high_gpio_mask,
 	.unmask		= sa1100_high_gpio_unmask,
@@ -215,7 +217,8 @@
 	return -EINVAL;
 }
 
-static struct irqchip sa1100_normal_chip = {
+static struct irq_chip sa1100_normal_chip = {
+	.name		= "SC",
 	.ack		= sa1100_mask_irq,
 	.mask		= sa1100_mask_irq,
 	.unmask		= sa1100_unmask_irq,