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Commit f04989bb authored by Hartley Sweeten's avatar Hartley Sweeten Committed by Russell King
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[ARM] 5575/1: ep93xx: Show gpio interrupt type in debugfs output. 



ep93xx: Show gpio interrupt type in debugfs output.

EP93xx uses a private implementation for the debugfs output.
Modify this output so it includes the interrupt type when the
gpio is configured as an interrupt

Signed-off-by: default avatarH Hartley Sweeten <hsweeten@visionengravers.com>
Acked-by: default avatarRyan Mallon <ryan@bluewatersys.com>
Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent ddf4f3d9

arch/arm/mach-ep93xx/gpio.c

+51 −5
Original line number Diff line number Diff line
@@ -111,15 +111,61 @@ 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 i;

	int gpio, i;



	data_reg = __raw_readb(ep93xx_chip->data_reg);

	data_dir_reg = __raw_readb(ep93xx_chip->data_dir_reg);



	for (i = 0; i < chip->ngpio; i++)

		seq_printf(s, "GPIO %s%d: %s %s\n", chip->label, i,

			   (data_reg & (1 << i)) ? "set" : "clear",

			   (data_dir_reg & (1 << i)) ? "out" : "in");

	gpio = ep93xx_chip->chip.base;

	for (i = 0; i < chip->ngpio; i++, gpio++) {

		int is_out = data_dir_reg & (1 << i);



		seq_printf(s, " %s%d gpio-%-3d (%-12s) %s %s",

				chip->label, i, gpio,

				gpiochip_is_requested(chip, i) ? : "",

				is_out ? "out" : "in ",

				(data_reg & (1 << i)) ? "hi" : "lo");



		if (!is_out) {

			int irq = gpio_to_irq(gpio);

			struct irq_desc *desc = irq_desc + irq;



			if (irq >= 0 && desc->action) {

				char *trigger;



				switch (desc->status & IRQ_TYPE_SENSE_MASK) {

				case IRQ_TYPE_NONE:

					trigger = "(default)";

					break;

				case IRQ_TYPE_EDGE_FALLING:

					trigger = "edge-falling";

					break;

				case IRQ_TYPE_EDGE_RISING:

					trigger = "edge-rising";

					break;

				case IRQ_TYPE_EDGE_BOTH:

					trigger = "edge-both";

					break;

				case IRQ_TYPE_LEVEL_HIGH:

					trigger = "level-high";

					break;

				case IRQ_TYPE_LEVEL_LOW:

					trigger = "level-low";

					break;

				default:

					trigger = "?trigger?";

					break;

				}



				seq_printf(s, " irq-%d %s%s",

						irq, trigger,

						(desc->status & IRQ_WAKEUP)

							? " wakeup" : "");

			}

		}



		seq_printf(s, "\n");

	}

}



#define EP93XX_GPIO_BANK(name, dr, ddr, base_gpio)			\