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Commit d009559a authored by Kevin Hilman's avatar Kevin Hilman
Browse files

OMAP: GPIO: remove duplicate debugfs interface 



The generic gpiolib provides a debugfs interface to GPIOs which
provides identical (but nicer looking) data as the OMAP specific one.

This patch completely drops the OMAP specific interface
(/debug/omap_gpio) in favor of using the generic one (/debug/gpio.)

Signed-off-by: default avatarKevin Hilman <khilman@deeprootsystems.com>
parent c8726707

arch/arm/plat-omap/gpio.c

+0 −107
Original line number Diff line number Diff line
@@ -2310,110 +2310,3 @@ static int __init omap_gpio_sysinit(void) 
}



arch_initcall(omap_gpio_sysinit);
 




#ifdef	CONFIG_DEBUG_FS



#include <linux/debugfs.h>

#include <linux/seq_file.h>



static int dbg_gpio_show(struct seq_file *s, void *unused)

{

	unsigned	i, j, gpio;



	for (i = 0, gpio = 0; i < gpio_bank_count; i++) {

		struct gpio_bank	*bank = gpio_bank + i;

		unsigned		bankwidth = 16;

		u32			mask = 1;



		if (bank_is_mpuio(bank))

			gpio = OMAP_MPUIO(0);

		else if (cpu_class_is_omap2() || cpu_is_omap7xx())

			bankwidth = 32;



		for (j = 0; j < bankwidth; j++, gpio++, mask <<= 1) {

			unsigned	irq, value, is_in, irqstat;

			const char	*label;



			label = gpiochip_is_requested(&bank->chip, j);

			if (!label)

				continue;



			irq = bank->virtual_irq_start + j;

			value = gpio_get_value(gpio);

			is_in = gpio_is_input(bank, mask);



			if (bank_is_mpuio(bank))

				seq_printf(s, "MPUIO %2d ", j);

			else

				seq_printf(s, "GPIO %3d ", gpio);

			seq_printf(s, "(%-20.20s): %s %s",

					label,

					is_in ? "in " : "out",

					value ? "hi"  : "lo");



/* FIXME for at least omap2, show pullup/pulldown state */



			irqstat = irq_desc[irq].status;

#if defined(CONFIG_ARCH_OMAP16XX) || defined(CONFIG_ARCH_OMAP2PLUS)

			if (is_in && ((bank->suspend_wakeup & mask)

					|| irqstat & IRQ_TYPE_SENSE_MASK)) {

				char	*trigger = NULL;



				switch (irqstat & IRQ_TYPE_SENSE_MASK) {

				case IRQ_TYPE_EDGE_FALLING:

					trigger = "falling";

					break;

				case IRQ_TYPE_EDGE_RISING:

					trigger = "rising";

					break;

				case IRQ_TYPE_EDGE_BOTH:

					trigger = "bothedge";

					break;

				case IRQ_TYPE_LEVEL_LOW:

					trigger = "low";

					break;

				case IRQ_TYPE_LEVEL_HIGH:

					trigger = "high";

					break;

				case IRQ_TYPE_NONE:

					trigger = "(?)";

					break;

				}

				seq_printf(s, ", irq-%d %-8s%s",

						irq, trigger,

						(bank->suspend_wakeup & mask)

							? " wakeup" : "");

			}

#endif

			seq_printf(s, "\n");

		}



		if (bank_is_mpuio(bank)) {

			seq_printf(s, "\n");

			gpio = 0;

		}

	}

	return 0;

}



static int dbg_gpio_open(struct inode *inode, struct file *file)

{

	return single_open(file, dbg_gpio_show, &inode->i_private);

}



static const struct file_operations debug_fops = {

	.open		= dbg_gpio_open,

	.read		= seq_read,

	.llseek		= seq_lseek,

	.release	= single_release,

};



static int __init omap_gpio_debuginit(void)

{

	(void) debugfs_create_file("omap_gpio", S_IRUGO,

					NULL, NULL, &debug_fops);

	return 0;

}

late_initcall(omap_gpio_debuginit);

#endif