[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>

arch/arm/common/gic.c

@@ -95,7 +95,8 @@ static void gic_set_cpu(unsigned int irq, cpumask_t mask_val)
 }
 #endif
 
-static struct irqchip gic_chip = {
+static struct irq_chip gic_chip = {
+	.name		= "GIC",
 	.ack		= gic_ack_irq,
 	.mask		= gic_mask_irq,
 	.unmask		= gic_unmask_irq,

arch/arm/common/locomo.c

@@ -204,7 +204,8 @@ static void locomo_unmask_irq(unsigned int irq)
 	locomo_writel(r, mapbase + LOCOMO_ICR);
 }
 
-static struct irqchip locomo_chip = {
+static struct irq_chip locomo_chip = {
+	.name	= "LOCOMO",
 	.ack	= locomo_ack_irq,
 	.mask	= locomo_mask_irq,
 	.unmask	= locomo_unmask_irq,
@@ -249,7 +250,8 @@ static void locomo_key_unmask_irq(unsigned int irq)
 	locomo_writel(r, mapbase + LOCOMO_KEYBOARD + LOCOMO_KIC);
 }
 
-static struct irqchip locomo_key_chip = {
+static struct irq_chip locomo_key_chip = {
+	.name	= "LOCOMO-key",
 	.ack	= locomo_key_ack_irq,
 	.mask	= locomo_key_mask_irq,
 	.unmask	= locomo_key_unmask_irq,
@@ -312,7 +314,8 @@ static void locomo_gpio_unmask_irq(unsigned int irq)
 	locomo_writel(r, mapbase + LOCOMO_GIE);
 }
 
-static struct irqchip locomo_gpio_chip = {
+static struct irq_chip locomo_gpio_chip = {
+	.name	= "LOCOMO-gpio",
 	.ack	= locomo_gpio_ack_irq,
 	.mask	= locomo_gpio_mask_irq,
 	.unmask	= locomo_gpio_unmask_irq,
@@ -357,7 +360,8 @@ static void locomo_lt_unmask_irq(unsigned int irq)
 	locomo_writel(r, mapbase + LOCOMO_LTINT);
 }
 
-static struct irqchip locomo_lt_chip = {
+static struct irq_chip locomo_lt_chip = {
+	.name	= "LOCOMO-lt",
 	.ack	= locomo_lt_ack_irq,
 	.mask	= locomo_lt_mask_irq,
 	.unmask	= locomo_lt_unmask_irq,
@@ -418,7 +422,8 @@ static void locomo_spi_unmask_irq(unsigned int irq)
 	locomo_writel(r, mapbase + LOCOMO_SPIIE);
 }
 
-static struct irqchip locomo_spi_chip = {
+static struct irq_chip locomo_spi_chip = {
+	.name	= "LOCOMO-spi",
 	.ack	= locomo_spi_ack_irq,
 	.mask	= locomo_spi_mask_irq,
 	.unmask	= locomo_spi_unmask_irq,

arch/arm/common/sa1111.c

@@ -272,7 +272,8 @@ static int sa1111_wake_lowirq(unsigned int irq, unsigned int on)
 	return 0;
 }
 
-static struct irqchip sa1111_low_chip = {
+static struct irq_chip sa1111_low_chip = {
+	.name		= "SA1111-l",
 	.ack		= sa1111_ack_irq,
 	.mask		= sa1111_mask_lowirq,
 	.unmask		= sa1111_unmask_lowirq,
@@ -368,7 +369,8 @@ static int sa1111_wake_highirq(unsigned int irq, unsigned int on)
 	return 0;
 }
 
-static struct irqchip sa1111_high_chip = {
+static struct irq_chip sa1111_high_chip = {
+	.name		= "SA1111-h",
 	.ack		= sa1111_ack_irq,
 	.mask		= sa1111_mask_highirq,
 	.unmask		= sa1111_unmask_highirq,

arch/arm/common/vic.c

@@ -39,7 +39,8 @@ static void vic_unmask_irq(unsigned int irq)
 	writel(1 << irq, base + VIC_INT_ENABLE);
 }
 
-static struct irqchip vic_chip = {
+static struct irq_chip vic_chip = {
+	.name	= "VIC",
 	.ack	= vic_mask_irq,
 	.mask	= vic_mask_irq,
 	.unmask	= vic_unmask_irq,

arch/arm/kernel/ecard.c

@@ -470,7 +470,8 @@ static void ecard_irq_mask(unsigned int irqnr)
 	}
 }
 
-static struct irqchip ecard_chip = {
+static struct irq_chip ecard_chip = {
+	.name	= "ECARD",
 	.ack	= ecard_irq_mask,
 	.mask	= ecard_irq_mask,
 	.unmask = ecard_irq_unmask,

arch/arm/kernel/irq.c

@@ -77,6 +77,7 @@ int show_interrupts(struct seq_file *p, void *v)
 		seq_printf(p, "%3d: ", i);
 		for_each_present_cpu(cpu)
 			seq_printf(p, "%10u ", kstat_cpu(cpu).irqs[i]);
+		seq_printf(p, " %10s", irq_desc[i].chip->name ? : "-");
 		seq_printf(p, "  %s", action->name);
 		for (action = action->next; action; action = action->next)
 			seq_printf(p, ", %s", action->name);

arch/arm/mach-at91rm9200/gpio.c

@@ -327,7 +327,8 @@ static int gpio_irq_type(unsigned pin, unsigned type)
 	return (type == IRQT_BOTHEDGE) ? 0 : -EINVAL;
 }
 
-static struct irqchip gpio_irqchip = {
+static struct irq_chip gpio_irqchip = {
+	.name		= "GPIO",
 	.mask		= gpio_irq_mask,
 	.unmask		= gpio_irq_unmask,
 	.set_type	= gpio_irq_type,

arch/arm/mach-at91rm9200/irq.c

@@ -114,7 +114,8 @@ void at91_irq_resume(void)
 #define at91_aic_set_wake	NULL
 #endif
 
-static struct irqchip at91_aic_chip = {
+static struct irq_chip at91_aic_chip = {
+	.name		= "AIC",
 	.ack		= at91_aic_mask_irq,
 	.mask		= at91_aic_mask_irq,
 	.unmask		= at91_aic_unmask_irq,

arch/arm/mach-imx/irq.c

@@ -204,13 +204,15 @@ imx_gpiod_demux_handler(unsigned int irq_unused, struct irqdesc *desc,
 	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,

arch/arm/mach-integrator/integrator_ap.c

@@ -161,7 +161,8 @@ static void sc_unmask_irq(unsigned int irq)
 	writel(1 << irq, VA_IC_BASE + IRQ_ENABLE_SET);
 }
 
-static struct irqchip sc_chip = {
+static struct irq_chip sc_chip = {
+	.name	= "SC",
 	.ack	= sc_mask_irq,
 	.mask	= sc_mask_irq,
 	.unmask = sc_unmask_irq,

arch/arm/mach-integrator/integrator_cp.c

@@ -156,7 +156,8 @@ static void cic_unmask_irq(unsigned int irq)
 	cic_writel(1 << irq, INTCP_VA_CIC_BASE + IRQ_ENABLE_SET);
 }
 
-static struct irqchip cic_chip = {
+static struct irq_chip cic_chip = {
+	.name	= "CIC",
 	.ack	= cic_mask_irq,
 	.mask	= cic_mask_irq,
 	.unmask	= cic_unmask_irq,
@@ -174,7 +175,8 @@ static void pic_unmask_irq(unsigned int irq)
 	pic_writel(1 << irq, INTCP_VA_PIC_BASE + IRQ_ENABLE_SET);
 }
 
-static struct irqchip pic_chip = {
+static struct irq_chip pic_chip = {
+	.name	= "PIC",
 	.ack	= pic_mask_irq,
 	.mask	= pic_mask_irq,
 	.unmask = pic_unmask_irq,
@@ -192,7 +194,8 @@ static void sic_unmask_irq(unsigned int irq)
 	sic_writel(1 << irq, INTCP_VA_SIC_BASE + IRQ_ENABLE_SET);
 }
 
-static struct irqchip sic_chip = {
+static struct irq_chip sic_chip = {
+	.name	= "SIC",
 	.ack	= sic_mask_irq,
 	.mask	= sic_mask_irq,
 	.unmask	= sic_unmask_irq,

arch/arm/mach-iop3xx/iop321-irq.c

@@ -52,7 +52,8 @@ iop321_irq_unmask (unsigned int irq)
 	intctl_write(iop321_mask);
 }
 
-struct irqchip ext_chip = {
+struct irq_chip ext_chip = {
+	.name	= "IOP",
 	.ack    = iop321_irq_mask,
 	.mask   = iop321_irq_mask,
 	.unmask = iop321_irq_unmask,

arch/arm/mach-iop3xx/iop331-irq.c

@@ -77,13 +77,15 @@ iop331_irq_unmask2(unsigned int irq)
         intctl_write1(iop331_mask1);
 }
 
-struct irqchip iop331_irqchip1 = {
+struct irq_chip iop331_irqchip1 = {
+	.name	= "IOP-1",
 	.ack    = iop331_irq_mask1,
 	.mask   = iop331_irq_mask1,
 	.unmask = iop331_irq_unmask1,
 };
 
-struct irqchip iop331_irqchip2 = {
+struct irq_chip iop331_irqchip2 = {
+	.name	= "IOP-2",
 	.ack    = iop331_irq_mask2,
 	.mask   = iop331_irq_mask2,
 	.unmask = iop331_irq_unmask2,

arch/arm/mach-lh7a40x/arch-kev7a400.c

@@ -63,7 +63,8 @@ static void kev7a400_unmask_cpld_irq (u32 irq)
 	CPLD_WR_PB_INT_MASK = CPLD_IRQ_mask;
 }
 
-static struct irqchip kev7a400_cpld_chip = {
+static struct irq_chip kev7a400_cpld_chip = {
+	.name	= "CPLD",
 	.ack	= kev7a400_ack_cpld_irq,
 	.mask	= kev7a400_mask_cpld_irq,
 	.unmask	= kev7a400_unmask_cpld_irq,

arch/arm/mach-lh7a40x/arch-lpd7a40x.c

@@ -200,7 +200,8 @@ static void lh7a40x_unmask_cpld_irq (u32 irq)
 	}
 }
 
-static struct irqchip lpd7a40x_cpld_chip = {
+static struct irq_chip lpd7a40x_cpld_chip = {
+	.name	= "CPLD",
 	.ack	= lh7a40x_ack_cpld_irq,
 	.mask	= lh7a40x_mask_cpld_irq,
 	.unmask	= lh7a40x_unmask_cpld_irq,

arch/arm/mach-lh7a40x/irq-kev7a400.c

@@ -43,7 +43,8 @@ lh7a400_unmask_cpld_irq (u32 irq)
 }
 
 static struct
-irqchip lh7a400_cpld_chip = {
+irq_chip lh7a400_cpld_chip = {
+	.name	= "CPLD",
 	.ack	= lh7a400_ack_cpld_irq,
 	.mask	= lh7a400_mask_cpld_irq,
 	.unmask	= lh7a400_unmask_cpld_irq,

arch/arm/mach-lh7a40x/irq-lh7a400.c

@@ -38,13 +38,15 @@ static void lh7a400_ack_gpio_irq (u32 irq)
 	INTC_INTENC = (1 << irq);
 }
 
-static struct irqchip lh7a400_internal_chip = {
+static struct irq_chip lh7a400_internal_chip = {
+	.name	= "MPU",
 	.ack	= lh7a400_mask_irq, /* Level triggering -> mask is ack */
 	.mask	= lh7a400_mask_irq,
 	.unmask	= lh7a400_unmask_irq,
 };
 
-static struct irqchip lh7a400_gpio_chip = {
+static struct irq_chip lh7a400_gpio_chip = {
+	.name	= "GPIO",
 	.ack	= lh7a400_ack_gpio_irq,
 	.mask	= lh7a400_mask_irq,
 	.unmask	= lh7a400_unmask_irq,

arch/arm/mach-lh7a40x/irq-lh7a404.c

@@ -76,25 +76,29 @@ static void lh7a404_vic2_ack_gpio_irq (u32 irq)
 	VIC2_INTENCLR = (1 << irq);
 }
 
-static struct irqchip lh7a404_vic1_chip = {
+static struct irq_chip lh7a404_vic1_chip = {
+	.name	= "VIC1",
 	.ack	= lh7a404_vic1_mask_irq, /* Because level-triggered */
 	.mask	= lh7a404_vic1_mask_irq,
 	.unmask	= lh7a404_vic1_unmask_irq,
 };
 
-static struct irqchip lh7a404_vic2_chip = {
+static struct irq_chip lh7a404_vic2_chip = {
+	.name	= "VIC2",
 	.ack	= lh7a404_vic2_mask_irq, /* Because level-triggered */
 	.mask	= lh7a404_vic2_mask_irq,
 	.unmask	= lh7a404_vic2_unmask_irq,
 };
 
-static struct irqchip lh7a404_gpio_vic1_chip = {
+static struct irq_chip lh7a404_gpio_vic1_chip = {
+	.name	= "GPIO-VIC1",
 	.ack	= lh7a404_vic1_ack_gpio_irq,
 	.mask	= lh7a404_vic1_mask_irq,
 	.unmask	= lh7a404_vic1_unmask_irq,
 };
 
-static struct irqchip lh7a404_gpio_vic2_chip = {
+static struct irq_chip lh7a404_gpio_vic2_chip = {
+	.name	= "GPIO-VIC2",
 	.ack	= lh7a404_vic2_ack_gpio_irq,
 	.mask	= lh7a404_vic2_mask_irq,
 	.unmask	= lh7a404_vic2_unmask_irq,

arch/arm/mach-lh7a40x/irq-lpd7a40x.c

@@ -50,7 +50,8 @@ static void lh7a40x_unmask_cpld_irq (u32 irq)
 	}
 }
 
-static struct irqchip lh7a40x_cpld_chip = {
+static struct irq_chip lh7a40x_cpld_chip = {
+	.name	= "CPLD",
 	.ack	= lh7a40x_ack_cpld_irq,
 	.mask	= lh7a40x_mask_cpld_irq,
 	.unmask	= lh7a40x_unmask_cpld_irq,

arch/arm/mach-omap1/fpga.c

@@ -106,14 +106,16 @@ void innovator_fpga_IRQ_demux(unsigned int irq, struct irqdesc *desc,
 	}
 }
 
-static struct irqchip omap_fpga_irq_ack = {
+static struct irq_chip omap_fpga_irq_ack = {
+	.name		= "FPGA-ack",
 	.ack		= fpga_mask_ack_irq,
 	.mask		= fpga_mask_irq,
 	.unmask		= fpga_unmask_irq,
 };
 
 
-static struct irqchip omap_fpga_irq = {
+static struct irq_chip omap_fpga_irq = {
+	.name		= "FPGA",
 	.ack		= fpga_ack_irq,
 	.mask		= fpga_mask_irq,
 	.unmask		= fpga_unmask_irq,

arch/arm/mach-omap1/irq.c

@@ -168,7 +168,8 @@ static struct omap_irq_bank omap1610_irq_banks[] = {
 };
 #endif
 
-static struct irqchip omap_irq_chip = {
+static struct irq_chip omap_irq_chip = {
+	.name		= "MPU",
 	.ack		= omap_mask_ack_irq,
 	.mask		= omap_mask_irq,
 	.unmask		= omap_unmask_irq,

arch/arm/mach-omap2/irq.c

@@ -94,7 +94,8 @@ static void omap_mask_ack_irq(unsigned int irq)
 	omap_ack_irq(irq);
 }
 
-static struct irqchip omap_irq_chip = {
+static struct irq_chip omap_irq_chip = {
+	.name	= "INTC",
 	.ack	= omap_mask_ack_irq,
 	.mask	= omap_mask_irq,
 	.unmask	= omap_unmask_irq,

arch/arm/mach-pxa/irq.c

@@ -39,7 +39,8 @@ static void pxa_unmask_low_irq(unsigned int irq)
 	ICMR |= (1 << (irq + PXA_IRQ_SKIP));
 }
 
-static struct irqchip pxa_internal_chip_low = {
+static struct irq_chip pxa_internal_chip_low = {
+	.name		= "SC",
 	.ack		= pxa_mask_low_irq,
 	.mask		= pxa_mask_low_irq,
 	.unmask		= pxa_unmask_low_irq,
@@ -61,7 +62,8 @@ static void pxa_unmask_high_irq(unsigned int irq)
 	ICMR2 |= (1 << (irq - 32 + PXA_IRQ_SKIP));
 }
 
-static struct irqchip pxa_internal_chip_high = {
+static struct irq_chip pxa_internal_chip_high = {
+	.name		= "SC-hi",
 	.ack		= pxa_mask_high_irq,
 	.mask		= pxa_mask_high_irq,
 	.unmask		= pxa_unmask_high_irq,
@@ -129,7 +131,8 @@ static void pxa_ack_low_gpio(unsigned int irq)
 	GEDR0 = (1 << (irq - IRQ_GPIO0));
 }
 
-static struct irqchip pxa_low_gpio_chip = {
+static struct irq_chip pxa_low_gpio_chip = {
+	.name		= "GPIO-l",
 	.ack		= pxa_ack_low_gpio,
 	.mask		= pxa_mask_low_irq,
 	.unmask		= pxa_unmask_low_irq,
@@ -237,7 +240,8 @@ static void pxa_unmask_muxed_gpio(unsigned int irq)
 	GFER(gpio) = GPIO_IRQ_falling_edge[idx] & GPIO_IRQ_mask[idx];
 }
 
-static struct irqchip pxa_muxed_gpio_chip = {
+static struct irq_chip pxa_muxed_gpio_chip = {
+	.name		= "GPIO",
 	.ack		= pxa_ack_muxed_gpio,
 	.mask		= pxa_mask_muxed_gpio,
 	.unmask		= pxa_unmask_muxed_gpio,

arch/arm/mach-pxa/lpd270.c

@@ -68,7 +68,8 @@ static void lpd270_unmask_irq(unsigned int irq)
 	__raw_writew(lpd270_irq_enabled, LPD270_INT_MASK);
 }
 
-static struct irqchip lpd270_irq_chip = {
+static struct irq_chip lpd270_irq_chip = {
+	.name		= "CPLD",
 	.ack		= lpd270_mask_irq,
 	.mask		= lpd270_mask_irq,
 	.unmask		= lpd270_unmask_irq,

arch/arm/mach-pxa/lubbock.c

@@ -78,7 +78,8 @@ static void lubbock_unmask_irq(unsigned int irq)
 	LUB_IRQ_MASK_EN = (lubbock_irq_enabled |= (1 << lubbock_irq));
 }
 
-static struct irqchip lubbock_irq_chip = {
+static struct irq_chip lubbock_irq_chip = {
+	.name		= "FPGA",
 	.ack		= lubbock_mask_irq,
 	.mask		= lubbock_mask_irq,
 	.unmask		= lubbock_unmask_irq,

arch/arm/mach-pxa/mainstone.c

@@ -64,7 +64,8 @@ static void mainstone_unmask_irq(unsigned int irq)
 	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,

arch/arm/mach-sa1100/irq.c

@@ -95,7 +95,8 @@ static int sa1100_low_gpio_wake(unsigned int irq, unsigned int on)
 	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 @@ static int sa1100_high_gpio_wake(unsigned int irq, unsigned int on)
 	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 @@ static int sa1100_set_wake(unsigned int irq, unsigned int on)
 	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,

arch/arm/mach-shark/irq.c

@@ -69,7 +69,8 @@ static irqreturn_t bogus_int(int irq, void *dev_id, struct pt_regs *regs)
 
 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,

arch/arm/mach-versatile/core.c

@@ -69,7 +69,8 @@ static void sic_unmask_irq(unsigned int irq)
 	writel(1 << irq, VA_SIC_BASE + SIC_IRQ_ENABLE_SET);
 }
 
-static struct irqchip sic_chip = {
+static struct irq_chip sic_chip = {
+	.name	= "SIC",
 	.ack	= sic_mask_irq,
 	.mask	= sic_mask_irq,
 	.unmask	= sic_unmask_irq,

arch/arm/plat-omap/gpio.c

@@ -944,7 +944,8 @@ static void mpuio_unmask_irq(unsigned int irq)
 	_set_gpio_irqenable(bank, gpio, 1);
 }
 
-static struct irqchip gpio_irq_chip = {
+static struct irq_chip gpio_irq_chip = {
+	.name		= "GPIO",
 	.ack		= gpio_ack_irq,
 	.mask		= gpio_mask_irq,
 	.unmask		= gpio_unmask_irq,
@@ -952,7 +953,8 @@ static struct irqchip gpio_irq_chip = {
 	.set_wake	= gpio_wake_enable,
 };
 
-static struct irqchip mpuio_irq_chip = {
+static struct irq_chip mpuio_irq_chip = {
+	.name	= "MPUIO",
 	.ack	= mpuio_ack_irq,
 	.mask	= mpuio_mask_irq,
 	.unmask	= mpuio_unmask_irq