pinctrl/sunxi: Prepare sunxi_pinctrl_irq_handler for irq argument removal

The irq argument of most interrupt flow handlers is unused or merily
used instead of a local variable. The handlers which need the irq
argument can retrieve the irq number from the irq descriptor.

Search and update was done with coccinelle and the invaluable help of
Julia Lawall.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Julia Lawall <Julia.Lawall@lip6.fr>
Cc: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: linux-gpio@vger.kernel.org

drivers/pinctrl/sunxi/pinctrl-sunxi.c

@@ -709,8 +709,9 @@ static struct irq_chip sunxi_pinctrl_level_irq_chip = {
 			  IRQCHIP_EOI_IF_HANDLED,
 };
 
-static void sunxi_pinctrl_irq_handler(unsigned irq, struct irq_desc *desc)
+static void sunxi_pinctrl_irq_handler(unsigned __irq, struct irq_desc *desc)
 {
+	unsigned int irq = irq_desc_get_irq(desc);
 	struct irq_chip *chip = irq_desc_get_chip(desc);
 	struct sunxi_pinctrl *pctl = irq_desc_get_handler_data(desc);
 	unsigned long bank, reg, val;