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authorStephan Linz <linz@li-pro.net>2016-06-10 07:59:56 +0200
committerJacek Anaszewski <j.anaszewski@samsung.com>2016-06-20 09:57:56 +0200
commiteb25cb9956cc9384b7fa0d75dec908c9fac8c444 (patch)
tree5bb75ffac203f56d4c3acb89246493bbea280528
parentfa4191a609f219262a18dd8b02ab7dc30896b707 (diff)
downloadop-kernel-dev-eb25cb9956cc9384b7fa0d75dec908c9fac8c444.zip
op-kernel-dev-eb25cb9956cc9384b7fa0d75dec908c9fac8c444.tar.gz
leds: convert IDE trigger to common disk trigger
This patch converts the IDE specific LED trigger to a generic disk activity LED trigger. The libata core is now a trigger source just like before the IDE disk driver. It's merely a replacement of the string ide by disk. The patch is taken from http://dev.gentoo.org/~josejx/ata.patch and is widely used by any ibook/powerbook owners with great satisfaction. Likewise, it is very often used successfully on different ARM platforms. Unlike the original patch, the existing 'ide-disk' trigger is still available for backward compatibility. That reduce the amount of patches in affected device trees out of the mainline kernel. For further development, the new name 'disk-activity' should be used. Cc: Joseph Jezak <josejx@gentoo.org> Cc: Jörg Sommer <joerg@alea.gnuu.de> Cc: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: Stephan Linz <linz@li-pro.net> Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
-rw-r--r--drivers/ata/libata-core.c4
-rw-r--r--drivers/ide/ide-disk.c2
-rw-r--r--drivers/leds/leds-hp6xx.c2
-rw-r--r--drivers/leds/trigger/Kconfig8
-rw-r--r--drivers/leds/trigger/Makefile2
-rw-r--r--drivers/leds/trigger/ledtrig-disk.c (renamed from drivers/leds/trigger/ledtrig-ide-disk.c)19
-rw-r--r--include/linux/leds.h6
7 files changed, 26 insertions, 17 deletions
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index 6be7770..2eca572 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -69,6 +69,7 @@
#include <asm/unaligned.h>
#include <linux/cdrom.h>
#include <linux/ratelimit.h>
+#include <linux/leds.h>
#include <linux/pm_runtime.h>
#include <linux/platform_device.h>
@@ -5072,6 +5073,9 @@ void ata_qc_complete(struct ata_queued_cmd *qc)
{
struct ata_port *ap = qc->ap;
+ /* Trigger the LED (if available) */
+ ledtrig_disk_activity();
+
/* XXX: New EH and old EH use different mechanisms to
* synchronize EH with regular execution path.
*
diff --git a/drivers/ide/ide-disk.c b/drivers/ide/ide-disk.c
index 05dbcce..5ceb176 100644
--- a/drivers/ide/ide-disk.c
+++ b/drivers/ide/ide-disk.c
@@ -186,7 +186,7 @@ static ide_startstop_t ide_do_rw_disk(ide_drive_t *drive, struct request *rq,
BUG_ON(drive->dev_flags & IDE_DFLAG_BLOCKED);
BUG_ON(rq->cmd_type != REQ_TYPE_FS);
- ledtrig_ide_activity();
+ ledtrig_disk_activity();
pr_debug("%s: %sing: block=%llu, sectors=%u\n",
drive->name, rq_data_dir(rq) == READ ? "read" : "writ",
diff --git a/drivers/leds/leds-hp6xx.c b/drivers/leds/leds-hp6xx.c
index a6b8db0..137969f 100644
--- a/drivers/leds/leds-hp6xx.c
+++ b/drivers/leds/leds-hp6xx.c
@@ -50,7 +50,7 @@ static struct led_classdev hp6xx_red_led = {
static struct led_classdev hp6xx_green_led = {
.name = "hp6xx:green",
- .default_trigger = "ide-disk",
+ .default_trigger = "disk-activity",
.brightness_set = hp6xxled_green_set,
.flags = LED_CORE_SUSPENDRESUME,
};
diff --git a/drivers/leds/trigger/Kconfig b/drivers/leds/trigger/Kconfig
index 9893d91..3f9ddb9 100644
--- a/drivers/leds/trigger/Kconfig
+++ b/drivers/leds/trigger/Kconfig
@@ -33,12 +33,12 @@ config LEDS_TRIGGER_ONESHOT
If unsure, say Y.
-config LEDS_TRIGGER_IDE_DISK
- bool "LED IDE Disk Trigger"
- depends on IDE_GD_ATA
+config LEDS_TRIGGER_DISK
+ bool "LED Disk Trigger"
+ depends on IDE_GD_ATA || ATA
depends on LEDS_TRIGGERS
help
- This allows LEDs to be controlled by IDE disk activity.
+ This allows LEDs to be controlled by disk activity.
If unsure, say Y.
config LEDS_TRIGGER_MTD
diff --git a/drivers/leds/trigger/Makefile b/drivers/leds/trigger/Makefile
index 8cc64a4..a72c43c 100644
--- a/drivers/leds/trigger/Makefile
+++ b/drivers/leds/trigger/Makefile
@@ -1,6 +1,6 @@
obj-$(CONFIG_LEDS_TRIGGER_TIMER) += ledtrig-timer.o
obj-$(CONFIG_LEDS_TRIGGER_ONESHOT) += ledtrig-oneshot.o
-obj-$(CONFIG_LEDS_TRIGGER_IDE_DISK) += ledtrig-ide-disk.o
+obj-$(CONFIG_LEDS_TRIGGER_DISK) += ledtrig-disk.o
obj-$(CONFIG_LEDS_TRIGGER_MTD) += ledtrig-mtd.o
obj-$(CONFIG_LEDS_TRIGGER_HEARTBEAT) += ledtrig-heartbeat.o
obj-$(CONFIG_LEDS_TRIGGER_BACKLIGHT) += ledtrig-backlight.o
diff --git a/drivers/leds/trigger/ledtrig-ide-disk.c b/drivers/leds/trigger/ledtrig-disk.c
index 15123d3..cd525b4 100644
--- a/drivers/leds/trigger/ledtrig-ide-disk.c
+++ b/drivers/leds/trigger/ledtrig-disk.c
@@ -1,5 +1,5 @@
/*
- * LED IDE-Disk Activity Trigger
+ * LED Disk Activity Trigger
*
* Copyright 2006 Openedhand Ltd.
*
@@ -17,20 +17,25 @@
#define BLINK_DELAY 30
+DEFINE_LED_TRIGGER(ledtrig_disk);
DEFINE_LED_TRIGGER(ledtrig_ide);
-void ledtrig_ide_activity(void)
+void ledtrig_disk_activity(void)
{
- unsigned long ide_blink_delay = BLINK_DELAY;
+ unsigned long blink_delay = BLINK_DELAY;
+ led_trigger_blink_oneshot(ledtrig_disk,
+ &blink_delay, &blink_delay, 0);
led_trigger_blink_oneshot(ledtrig_ide,
- &ide_blink_delay, &ide_blink_delay, 0);
+ &blink_delay, &blink_delay, 0);
}
-EXPORT_SYMBOL(ledtrig_ide_activity);
+EXPORT_SYMBOL(ledtrig_disk_activity);
-static int __init ledtrig_ide_init(void)
+static int __init ledtrig_disk_init(void)
{
+ led_trigger_register_simple("disk-activity", &ledtrig_disk);
led_trigger_register_simple("ide-disk", &ledtrig_ide);
+
return 0;
}
-device_initcall(ledtrig_ide_init);
+device_initcall(ledtrig_disk_init);
diff --git a/include/linux/leds.h b/include/linux/leds.h
index e5e7f2e..0aa3701 100644
--- a/include/linux/leds.h
+++ b/include/linux/leds.h
@@ -325,10 +325,10 @@ static inline void *led_get_trigger_data(struct led_classdev *led_cdev)
#endif /* CONFIG_LEDS_TRIGGERS */
/* Trigger specific functions */
-#ifdef CONFIG_LEDS_TRIGGER_IDE_DISK
-extern void ledtrig_ide_activity(void);
+#ifdef CONFIG_LEDS_TRIGGER_DISK
+extern void ledtrig_disk_activity(void);
#else
-static inline void ledtrig_ide_activity(void) {}
+static inline void ledtrig_disk_activity(void) {}
#endif
#ifdef CONFIG_LEDS_TRIGGER_MTD
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