ARM: 6852/1: EP93xx: Remove ep93xx_gpio_dbg_show function

The interrupt printing functionality in the ep93xx gpio debugfs function
does not behave as expected. It prints [interrupt] beside all pins which
are capable of being interrupts, not just those which are currently
configured as interrupts.

The best solution is just to remove the custom ep93xx gpio debugfs
function all together. The generic gpiolib one is good enough.

Signed-off-by: Ryan Mallon <ryan@bluewatersys.com>
Acked-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

arch/arm/mach-ep93xx/gpio.c

@@ -356,29 +356,6 @@ static int ep93xx_gpio_set_debounce(struct gpio_chip *chip,
 	return 0;
 }
 
-static void ep93xx_gpio_dbg_show(struct seq_file *s, struct gpio_chip *chip)
-{
-	struct ep93xx_gpio_chip *ep93xx_chip = to_ep93xx_gpio_chip(chip);
-	u8 data_reg, data_dir_reg;
-	int gpio, i;
-
-	data_reg = __raw_readb(ep93xx_chip->data_reg);
-	data_dir_reg = __raw_readb(ep93xx_chip->data_dir_reg);
-
-	gpio = ep93xx_chip->chip.base;
-	for (i = 0; i < chip->ngpio; i++, gpio++) {
-		int is_out = data_dir_reg & (1 << i);
-		int irq = gpio_to_irq(gpio);
-
-		seq_printf(s, " %s%d gpio-%-3d (%-12s) %s %s %s\n",
-				chip->label, i, gpio,
-				gpiochip_is_requested(chip, i) ? : "",
-				is_out ? "out" : "in ",
-				(data_reg & (1<<  i)) ? "hi" : "lo",
-				(!is_out && irq>= 0) ? "(interrupt)" : "");
-	}
-}
-
 #define EP93XX_GPIO_BANK(name, dr, ddr, base_gpio)			\
 	{								\
 		.chip = {						\
@@ -387,7 +364,6 @@ static void ep93xx_gpio_dbg_show(struct seq_file *s, struct gpio_chip *chip)
 			.direction_output = ep93xx_gpio_direction_output, \
 			.get		  = ep93xx_gpio_get,		\
 			.set		  = ep93xx_gpio_set,		\
-			.dbg_show	  = ep93xx_gpio_dbg_show,	\
 			.base		  = base_gpio,			\
 			.ngpio		  = 8,				\
 		},							\