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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: Jonas Aaberg <jonas.aberg@stericsson.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Reviewed-by: Per FORLIN <per.forlin@stericsson.com>
Tested-by: Mattias WALLIN <mattias.wallin@stericsson.com>
Acked-by: Samuel Ortiz <sameo@linux.intel.com>
This commit is contained in:
Jonas Aaberg 2012-05-31 07:57:07 +02:00 committed by Lee Jones
parent 222460cb4b
commit 2cf64e2648
1 changed files with 30 additions and 5 deletions
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35
drivers/mfd/ab8500-debugfs.c
View File

@ -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;
}
@ -1870,7 +1895,7 @@ static int ab8500_debug_probe(struct platform_device *plf)
dev_err(&plf->dev, "Last irq not found, err %d\n",
irq_last);
ret = irq_last;
goto out_freeevent_name;
goto out_freeevent_name;
}
ab8500_dir = debugfs_create_dir(AB8500_NAME_STRING, NULL);