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210 lines
6.4 KiB
Diff
210 lines
6.4 KiB
Diff
From eb25cb9956cc9384b7fa0d75dec908c9fac8c444 Mon Sep 17 00:00:00 2001
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From: Stephan Linz <linz@li-pro.net>
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Date: Fri, 10 Jun 2016 07:59:56 +0200
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Subject: [PATCH] leds: convert IDE trigger to common disk trigger
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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This patch converts the IDE specific LED trigger to a generic disk
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activity LED trigger. The libata core is now a trigger source just
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like before the IDE disk driver. It's merely a replacement of the
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string ide by disk.
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The patch is taken from http://dev.gentoo.org/~josejx/ata.patch and is
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widely used by any ibook/powerbook owners with great satisfaction.
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Likewise, it is very often used successfully on different ARM platforms.
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Unlike the original patch, the existing 'ide-disk' trigger is still
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available for backward compatibility. That reduce the amount of patches
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in affected device trees out of the mainline kernel. For further
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development, the new name 'disk-activity' should be used.
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Cc: Joseph Jezak <josejx@gentoo.org>
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Cc: Jörg Sommer <joerg@alea.gnuu.de>
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Cc: Richard Purdie <rpurdie@rpsys.net>
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Signed-off-by: Stephan Linz <linz@li-pro.net>
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Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
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---
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drivers/ata/libata-core.c | 4 ++++
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drivers/ide/ide-disk.c | 2 +-
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drivers/leds/trigger/Kconfig | 8 +++----
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drivers/leds/trigger/Makefile | 2 +-
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drivers/leds/trigger/ledtrig-disk.c | 41 +++++++++++++++++++++++++++++++++
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drivers/leds/trigger/ledtrig-ide-disk.c | 36 -----------------------------
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include/linux/leds.h | 6 ++---
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8 files changed, 55 insertions(+), 46 deletions(-)
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create mode 100644 drivers/leds/trigger/ledtrig-disk.c
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delete mode 100644 drivers/leds/trigger/ledtrig-ide-disk.c
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--- a/drivers/ata/libata-core.c
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+++ b/drivers/ata/libata-core.c
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@@ -67,6 +67,7 @@
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#include <asm/byteorder.h>
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#include <linux/cdrom.h>
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#include <linux/ratelimit.h>
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+#include <linux/leds.h>
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#include <linux/pm_runtime.h>
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#include <linux/platform_device.h>
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@@ -4914,6 +4915,9 @@ void ata_qc_complete(struct ata_queued_c
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{
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struct ata_port *ap = qc->ap;
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+ /* Trigger the LED (if available) */
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+ ledtrig_disk_activity();
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+
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/* XXX: New EH and old EH use different mechanisms to
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* synchronize EH with regular execution path.
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*
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--- a/drivers/ide/ide-disk.c
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+++ b/drivers/ide/ide-disk.c
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@@ -186,7 +186,7 @@ static ide_startstop_t ide_do_rw_disk(id
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BUG_ON(drive->dev_flags & IDE_DFLAG_BLOCKED);
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BUG_ON(rq->cmd_type != REQ_TYPE_FS);
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- ledtrig_ide_activity();
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+ ledtrig_disk_activity();
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pr_debug("%s: %sing: block=%llu, sectors=%u\n",
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drive->name, rq_data_dir(rq) == READ ? "read" : "writ",
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--- a/drivers/leds/trigger/Kconfig
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+++ b/drivers/leds/trigger/Kconfig
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@@ -33,12 +33,12 @@ config LEDS_TRIGGER_ONESHOT
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If unsure, say Y.
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-config LEDS_TRIGGER_IDE_DISK
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- bool "LED IDE Disk Trigger"
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- depends on IDE_GD_ATA
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+config LEDS_TRIGGER_DISK
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+ bool "LED Disk Trigger"
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+ depends on IDE_GD_ATA || ATA
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depends on LEDS_TRIGGERS
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help
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- This allows LEDs to be controlled by IDE disk activity.
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+ This allows LEDs to be controlled by disk activity.
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If unsure, say Y.
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config LEDS_TRIGGER_HEARTBEAT
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--- a/drivers/leds/trigger/Makefile
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+++ b/drivers/leds/trigger/Makefile
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@@ -1,6 +1,6 @@
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obj-$(CONFIG_LEDS_TRIGGER_TIMER) += ledtrig-timer.o
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obj-$(CONFIG_LEDS_TRIGGER_ONESHOT) += ledtrig-oneshot.o
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-obj-$(CONFIG_LEDS_TRIGGER_IDE_DISK) += ledtrig-ide-disk.o
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+obj-$(CONFIG_LEDS_TRIGGER_DISK) += ledtrig-disk.o
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obj-$(CONFIG_LEDS_TRIGGER_HEARTBEAT) += ledtrig-heartbeat.o
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obj-$(CONFIG_LEDS_TRIGGER_BACKLIGHT) += ledtrig-backlight.o
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obj-$(CONFIG_LEDS_TRIGGER_GPIO) += ledtrig-gpio.o
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--- /dev/null
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+++ b/drivers/leds/trigger/ledtrig-disk.c
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@@ -0,0 +1,41 @@
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+/*
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+ * LED Disk Activity Trigger
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+ *
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+ * Copyright 2006 Openedhand Ltd.
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+ *
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+ * Author: Richard Purdie <rpurdie@openedhand.com>
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+ *
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+ * This program is free software; you can redistribute it and/or modify
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+ * it under the terms of the GNU General Public License version 2 as
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+ * published by the Free Software Foundation.
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+ *
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+ */
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+
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+#include <linux/kernel.h>
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+#include <linux/init.h>
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+#include <linux/leds.h>
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+
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+#define BLINK_DELAY 30
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+
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+DEFINE_LED_TRIGGER(ledtrig_disk);
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+DEFINE_LED_TRIGGER(ledtrig_ide);
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+
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+void ledtrig_disk_activity(void)
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+{
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+ unsigned long blink_delay = BLINK_DELAY;
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+
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+ led_trigger_blink_oneshot(ledtrig_disk,
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+ &blink_delay, &blink_delay, 0);
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+ led_trigger_blink_oneshot(ledtrig_ide,
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+ &blink_delay, &blink_delay, 0);
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+}
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+EXPORT_SYMBOL(ledtrig_disk_activity);
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+
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+static int __init ledtrig_disk_init(void)
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+{
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+ led_trigger_register_simple("disk-activity", &ledtrig_disk);
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+ led_trigger_register_simple("ide-disk", &ledtrig_ide);
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+
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+ return 0;
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+}
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+device_initcall(ledtrig_disk_init);
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--- a/drivers/leds/trigger/ledtrig-ide-disk.c
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+++ /dev/null
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@@ -1,47 +0,0 @@
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-/*
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- * LED IDE-Disk Activity Trigger
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- *
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- * Copyright 2006 Openedhand Ltd.
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- *
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- * Author: Richard Purdie <rpurdie@openedhand.com>
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- *
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- * This program is free software; you can redistribute it and/or modify
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- * it under the terms of the GNU General Public License version 2 as
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- * published by the Free Software Foundation.
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- *
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- */
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-
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-#include <linux/module.h>
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-#include <linux/kernel.h>
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-#include <linux/init.h>
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-#include <linux/leds.h>
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-
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-#define BLINK_DELAY 30
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-
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-DEFINE_LED_TRIGGER(ledtrig_ide);
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-static unsigned long ide_blink_delay = BLINK_DELAY;
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-
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-void ledtrig_ide_activity(void)
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-{
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- led_trigger_blink_oneshot(ledtrig_ide,
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- &ide_blink_delay, &ide_blink_delay, 0);
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-}
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-EXPORT_SYMBOL(ledtrig_ide_activity);
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-
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-static int __init ledtrig_ide_init(void)
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-{
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- led_trigger_register_simple("ide-disk", &ledtrig_ide);
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- return 0;
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-}
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-
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-static void __exit ledtrig_ide_exit(void)
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-{
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- led_trigger_unregister_simple(ledtrig_ide);
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-}
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-
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-module_init(ledtrig_ide_init);
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-module_exit(ledtrig_ide_exit);
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-
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-MODULE_AUTHOR("Richard Purdie <rpurdie@openedhand.com>");
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-MODULE_DESCRIPTION("LED IDE Disk Activity Trigger");
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-MODULE_LICENSE("GPL");
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--- a/include/linux/leds.h
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+++ b/include/linux/leds.h
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@@ -308,10 +308,10 @@ static inline void *led_get_trigger_data
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#endif /* CONFIG_LEDS_TRIGGERS */
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/* Trigger specific functions */
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-#ifdef CONFIG_LEDS_TRIGGER_IDE_DISK
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-extern void ledtrig_ide_activity(void);
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+#ifdef CONFIG_LEDS_TRIGGER_DISK
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+extern void ledtrig_disk_activity(void);
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#else
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-static inline void ledtrig_ide_activity(void) {}
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+static inline void ledtrig_disk_activity(void) {}
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#endif
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#if defined(CONFIG_LEDS_TRIGGER_CAMERA) || defined(CONFIG_LEDS_TRIGGER_CAMERA_MODULE)
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