mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-26 23:05:14 +07:00
4b721174c7
This commit introduces a MTD trigger for flash (NAND/NOR) device activity. The implementation is copied from IDE disk. This trigger deprecates the "nand-disk" LED trigger, but for backwards compatibility, we still keep the "nand-disk" trigger around. The motivation for deprecating the "nand-disk" LED trigger is that it only works for NAND drivers, whereas the "mtd" LED trigger is more generic (in fact, "nand-disk" currently only works for certain NAND drivers). Signed-off-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar> Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
46 lines
1.0 KiB
C
46 lines
1.0 KiB
C
/*
|
|
* LED MTD trigger
|
|
*
|
|
* Copyright 2016 Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
|
|
*
|
|
* Based on LED IDE-Disk Activity Trigger
|
|
*
|
|
* Copyright 2006 Openedhand Ltd.
|
|
*
|
|
* Author: Richard Purdie <rpurdie@openedhand.com>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*
|
|
*/
|
|
|
|
#include <linux/kernel.h>
|
|
#include <linux/init.h>
|
|
#include <linux/leds.h>
|
|
|
|
#define BLINK_DELAY 30
|
|
|
|
DEFINE_LED_TRIGGER(ledtrig_mtd);
|
|
DEFINE_LED_TRIGGER(ledtrig_nand);
|
|
|
|
void ledtrig_mtd_activity(void)
|
|
{
|
|
unsigned long blink_delay = BLINK_DELAY;
|
|
|
|
led_trigger_blink_oneshot(ledtrig_mtd,
|
|
&blink_delay, &blink_delay, 0);
|
|
led_trigger_blink_oneshot(ledtrig_nand,
|
|
&blink_delay, &blink_delay, 0);
|
|
}
|
|
EXPORT_SYMBOL(ledtrig_mtd_activity);
|
|
|
|
static int __init ledtrig_mtd_init(void)
|
|
{
|
|
led_trigger_register_simple("mtd", &ledtrig_mtd);
|
|
led_trigger_register_simple("nand-disk", &ledtrig_nand);
|
|
|
|
return 0;
|
|
}
|
|
device_initcall(ledtrig_mtd_init);
|