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Commit 2cf64e26 authored by Jonas Aaberg's avatar Jonas Aaberg Committed by Lee Jones
Browse files

mfd: ab8500-debug: Add wake-up info 



Add information regarding what ab interrupt that caused
a wake-up from suspend in <debugfs>/ab8500/interrupts.
Also print the name of the interrupts, not just the numbers.

Signed-off-by: default avatarJonas Aaberg <jonas.aberg@stericsson.com>
Signed-off-by: default avatarLee Jones <lee.jones@linaro.org>
Reviewed-by: default avatarPer FORLIN <per.forlin@stericsson.com>
Tested-by: default avatarMattias WALLIN <mattias.wallin@stericsson.com>
Acked-by: default avatarSamuel Ortiz <sameo@linux.intel.com>
parent 222460cb

drivers/mfd/ab8500-debugfs.c

+30 −5
Original line number Diff line number Diff line
@@ -80,6 +80,7 @@ 
#include <linux/interrupt.h>

#include <linux/kobject.h>

#include <linux/slab.h>

#include <linux/irq.h>



#include <linux/mfd/abx500.h>

#include <linux/mfd/abx500/ab8500.h>
@@ -803,22 +804,46 @@ static ssize_t ab8500_val_write(struct file *file, 
 * Interrupt status

 */

static u32 num_interrupts[AB8500_MAX_NR_IRQS];

static u32 num_wake_interrupts[AB8500_MAX_NR_IRQS];

static int num_interrupt_lines;



bool __attribute__((weak)) suspend_test_wake_cause_interrupt_is_mine(u32 my_int)

{

	return false;

}



void ab8500_debug_register_interrupt(int line)

{

	if (line < num_interrupt_lines)

	if (line < num_interrupt_lines) {

		num_interrupts[line]++;

		if (suspend_test_wake_cause_interrupt_is_mine(IRQ_DB8500_AB8500))

			num_wake_interrupts[line]++;

	}

}



static int ab8500_interrupts_print(struct seq_file *s, void *p)

{

	int line;



	seq_printf(s, "irq:  number of\n");

	seq_printf(s, "name: number:  number of: wake:\n");



	for (line = 0; line < num_interrupt_lines; line++)

		seq_printf(s, "%3i:  %6i\n", line, num_interrupts[line]);

	for (line = 0; line < num_interrupt_lines; line++) {

		struct irq_desc *desc = irq_to_desc(line + irq_first);

		struct irqaction *action = desc->action;



		seq_printf(s, "%3i:  %6i %4i", line,

			   num_interrupts[line],

			   num_wake_interrupts[line]);



		if (desc && desc->name)

			seq_printf(s, "-%-8s", desc->name);

		if (action) {

			seq_printf(s, "  %s", action->name);

			while ((action = action->next) != NULL)

				seq_printf(s, ", %s", action->name);

		}

		seq_putc(s, '\n');

	}



	return 0;

}