irqchip/atmel-aic5: Use explicit variable name for the base chip

To avoid errors, use an explicit variable name when accessing the 'base'
generic chip.

Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Acked-by: Nicholas Ferre <nicolas.ferre@atmel.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Cc: <sasha.levin@oracle.com>
Cc: <linux-arm-kernel@lists.infradead.org>
Cc: <alexandre.belloni@free-electrons.com>
Cc: <Wenyou.Yang@atmel.com>
Cc: <jason@lakedaemon.net>
Cc: <marc.zyngier@arm.com>
Link: http://lkml.kernel.org/r/1442843173-2390-2-git-send-email-ludovic.desroches@atmel.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

drivers/irqchip/irq-atmel-aic5.c

@@ -71,15 +71,15 @@ static asmlinkage void __exception_irq_entry
 aic5_handle(struct pt_regs *regs)
 {
 	struct irq_domain_chip_generic *dgc = aic5_domain->gc;
-	struct irq_chip_generic *gc = dgc->gc[0];
+	struct irq_chip_generic *bgc = dgc->gc[0];
 	u32 irqnr;
 	u32 irqstat;
 
-	irqnr = irq_reg_readl(gc, AT91_AIC5_IVR);
-	irqstat = irq_reg_readl(gc, AT91_AIC5_ISR);
+	irqnr = irq_reg_readl(bgc, AT91_AIC5_IVR);
+	irqstat = irq_reg_readl(bgc, AT91_AIC5_ISR);
 
 	if (!irqstat)
-		irq_reg_writel(gc, 0, AT91_AIC5_EOICR);
+		irq_reg_writel(bgc, 0, AT91_AIC5_EOICR);
 	else
 		handle_domain_irq(aic5_domain, irqnr, regs);
 }
@@ -124,13 +124,13 @@ static int aic5_retrigger(struct irq_data *d)
 {
 	struct irq_domain *domain = d->domain;
 	struct irq_domain_chip_generic *dgc = domain->gc;
-	struct irq_chip_generic *gc = dgc->gc[0];
+	struct irq_chip_generic *bgc = dgc->gc[0];
 
 	/* Enable interrupt on AIC5 */
-	irq_gc_lock(gc);
-	irq_reg_writel(gc, d->hwirq, AT91_AIC5_SSR);
-	irq_reg_writel(gc, 1, AT91_AIC5_ISCR);
-	irq_gc_unlock(gc);
+	irq_gc_lock(bgc);
+	irq_reg_writel(bgc, d->hwirq, AT91_AIC5_SSR);
+	irq_reg_writel(bgc, 1, AT91_AIC5_ISCR);
+	irq_gc_unlock(bgc);
 
 	return 0;
 }
@@ -139,17 +139,17 @@ static int aic5_set_type(struct irq_data *d, unsigned type)
 {
 	struct irq_domain *domain = d->domain;
 	struct irq_domain_chip_generic *dgc = domain->gc;
-	struct irq_chip_generic *gc = dgc->gc[0];
+	struct irq_chip_generic *bgc = dgc->gc[0];
 	unsigned int smr;
 	int ret;
 
-	irq_gc_lock(gc);
-	irq_reg_writel(gc, d->hwirq, AT91_AIC5_SSR);
-	smr = irq_reg_readl(gc, AT91_AIC5_SMR);
+	irq_gc_lock(bgc);
+	irq_reg_writel(bgc, d->hwirq, AT91_AIC5_SSR);
+	smr = irq_reg_readl(bgc, AT91_AIC5_SMR);
 	ret = aic_common_set_type(d, type, &smr);
 	if (!ret)
-		irq_reg_writel(gc, smr, AT91_AIC5_SMR);
-	irq_gc_unlock(gc);
+		irq_reg_writel(bgc, smr, AT91_AIC5_SMR);
+	irq_gc_unlock(bgc);
 
 	return ret;
 }
@@ -263,7 +263,7 @@ static int aic5_irq_domain_xlate(struct irq_domain *d,
 				 unsigned int *out_type)
 {
 	struct irq_domain_chip_generic *dgc = d->gc;
-	struct irq_chip_generic *gc;
+	struct irq_chip_generic *bgc;
 	unsigned smr;
 	int ret;
 
@@ -275,15 +275,15 @@ static int aic5_irq_domain_xlate(struct irq_domain *d,
 	if (ret)
 		return ret;
 
-	gc = dgc->gc[0];
+	bgc = dgc->gc[0];
 
-	irq_gc_lock(gc);
-	irq_reg_writel(gc, *out_hwirq, AT91_AIC5_SSR);
-	smr = irq_reg_readl(gc, AT91_AIC5_SMR);
+	irq_gc_lock(bgc);
+	irq_reg_writel(bgc, *out_hwirq, AT91_AIC5_SSR);
+	smr = irq_reg_readl(bgc, AT91_AIC5_SMR);
 	ret = aic_common_set_priority(intspec[2], &smr);
 	if (!ret)
-		irq_reg_writel(gc, intspec[2] | smr, AT91_AIC5_SMR);
-	irq_gc_unlock(gc);
+		irq_reg_writel(bgc, intspec[2] | smr, AT91_AIC5_SMR);
+	irq_gc_unlock(bgc);
 
 	return ret;
 }