[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-imx/irq.c b/arch/arm/mach-imx/irq.c
index a5de5f1..2688bd8 100644
--- a/arch/arm/mach-imx/irq.c
+++ b/arch/arm/mach-imx/irq.c
@@ -204,13 +204,15 @@
 	imx_gpio_handler(mask, irq, desc, regs);
 }
 
-static struct irqchip imx_internal_chip = {
+static struct irq_chip imx_internal_chip = {
+	.name = "MPU",
 	.ack = imx_mask_irq,
 	.mask = imx_mask_irq,
 	.unmask = imx_unmask_irq,
 };
 
-static struct irqchip imx_gpio_chip = {
+static struct irq_chip imx_gpio_chip = {
+	.name = "GPIO",
 	.ack = imx_gpio_ack_irq,
 	.mask = imx_gpio_mask_irq,
 	.unmask = imx_gpio_unmask_irq,