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Date: Thu, 09 Jun 2016 09:29:45 +0200 From: Jacek Anaszewski <j.anaszewski@...sung.com> To: Stephan Linz <linz@...pro.net> Cc: linux-leds@...r.kernel.org, linux-ide@...r.kernel.org, Joseph Jezak <josejx@...too.org>, Nico Macrionitis <acrux@...xppc.org>, Jörg Sommer <joerg@...a.gnuu.de>, Richard Purdie <rpurdie@...ys.net>, Tejun Heo <tj@...nel.org>, "David S. Miller" <davem@...emloft.net>, linux-kernel@...r.kernel.org Subject: Re: [PATCH v3 1/7] leds: convert IDE trigger to common disk trigger Hi Stephan, Thanks for the patch. Generally it looks ok, with one exception: we have to keep ide-disk trigger, so as not to break existing users. Please just register two triggers in ledtrig_disk_init, similarly as it was done for mtd trigger: drivers/leds/trigger/ledtrig-mtd.c Thanks, Jacek Anaszewski On 06/09/2016 12:29 AM, Stephan Linz wrote: > 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. > > The original patch was split into different parts to clarify platform > independent and dependent changes. > > Cc: Joseph Jezak <josejx@...too.org> > Cc: Nico Macrionitis <acrux@...xppc.org> > Cc: Jörg Sommer <joerg@...a.gnuu.de> > Cc: Richard Purdie <rpurdie@...ys.net> > Cc: Jacek Anaszewski <j.anaszewski@...sung.com> > Signed-off-by: Stephan Linz <linz@...pro.net> > --- > Changes in v3: > - Port to kernel 4.x > - Split into platform independent and dependent parts. > > v2: https://patchwork.ozlabs.org/patch/117485/ > v1: http://dev.gentoo.org/~josejx/ata.patch > --- > drivers/ata/libata-core.c | 4 ++++ > drivers/ide/ide-disk.c | 2 +- > drivers/leds/leds-hp6xx.c | 2 +- > drivers/leds/trigger/Kconfig | 8 ++++---- > drivers/leds/trigger/Makefile | 2 +- > .../trigger/{ledtrig-ide-disk.c => ledtrig-disk.c} | 20 ++++++++++---------- > include/linux/leds.h | 6 +++--- > 7 files changed, 24 insertions(+), 20 deletions(-) > rename drivers/leds/trigger/{ledtrig-ide-disk.c => ledtrig-disk.c} (50%) > > 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 > similarity index 50% > rename from drivers/leds/trigger/ledtrig-ide-disk.c > rename to drivers/leds/trigger/ledtrig-disk.c > index 15123d3..7a1fe44 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 +17,20 @@ > > #define BLINK_DELAY 30 > > -DEFINE_LED_TRIGGER(ledtrig_ide); > +DEFINE_LED_TRIGGER(ledtrig_disk); > > -void ledtrig_ide_activity(void) > +void ledtrig_disk_activity(void) > { > - unsigned long ide_blink_delay = BLINK_DELAY; > + unsigned long disk_blink_delay = BLINK_DELAY; > > - led_trigger_blink_oneshot(ledtrig_ide, > - &ide_blink_delay, &ide_blink_delay, 0); > + led_trigger_blink_oneshot(ledtrig_disk, > + &disk_blink_delay, &disk_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("ide-disk", &ledtrig_ide); > + led_trigger_register_simple("disk-activity", &ledtrig_disk); > 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 d2b1306..28a3ef5 100644 > --- a/include/linux/leds.h > +++ b/include/linux/leds.h > @@ -324,10 +324,10 @@ 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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