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path: root/drivers/leds
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2009-12-15tree-wide: convert open calls to remove spaces to skip_spaces() lib functionAndré Goddard Rosa2-3/+3
Makes use of skip_spaces() defined in lib/string.c for removing leading spaces from strings all over the tree. It decreases lib.a code size by 47 bytes and reuses the function tree-wide: text data bss dec hex filename 64688 584 592 65864 10148 (TOTALS-BEFORE) 64641 584 592 65817 10119 (TOTALS-AFTER) Also, while at it, if we see (*str && isspace(*str)), we can be sure to remove the first condition (*str) as the second one (isspace(*str)) also evaluates to 0 whenever *str == 0, making it redundant. In other words, "a char equals zero is never a space". Julia Lawall tried the semantic patch (http://coccinelle.lip6.fr) below, and found occurrences of this pattern on 3 more files: drivers/leds/led-class.c drivers/leds/ledtrig-timer.c drivers/video/output.c @@ expression str; @@ ( // ignore skip_spaces cases while (*str && isspace(*str)) { \(str++;\|++str;\) } | - *str && isspace(*str) ) Signed-off-by: André Goddard Rosa <andre.goddard@gmail.com> Cc: Julia Lawall <julia@diku.dk> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Jeff Dike <jdike@addtoit.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Richard Purdie <rpurdie@rpsys.net> Cc: Neil Brown <neilb@suse.de> Cc: Kyle McMartin <kyle@mcmartin.ca> Cc: Henrique de Moraes Holschuh <hmh@hmh.eng.br> Cc: David Howells <dhowells@redhat.com> Cc: <linux-ext4@vger.kernel.org> Cc: Samuel Ortiz <samuel@sortiz.org> Cc: Patrick McHardy <kaber@trash.net> Cc: Takashi Iwai <tiwai@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-13Merge branch 'ixp4xx' of ↵Linus Torvalds1-0/+7
git://git.kernel.org/pub/scm/linux/kernel/git/chris/linux-2.6 * 'ixp4xx' of git://git.kernel.org/pub/scm/linux/kernel/git/chris/linux-2.6: IXP4xx: GTWX5715 platform only has two PCI IRQ lines, not four. IXP4xx: Introduce IXP4XX_GPIO_IRQ(n) macro and convert IXP4xx platform files. IXP4xx: move Gemtek GTWX5715 platform macros to the platform code. IXP4xx: Remove unused Motorola PrPMC1100 platform macros. IXP4xx: move FSG platform macros to the platform code. IXP4xx: move DSM G600 platform macros to the platform code. IXP4xx: move NAS100D platform macros to the platform code. IXP4xx: move NSLU2 platform macros to the platform code. IXP4xx: move Coyote platform macros to the platform code. IXP4xx: move AVILA platform macros to the platform code. IXP4xx: move IXDP425 platform macros to the platform code. IXP4xx: Extend PCI MMIO indirect address space to 1 GB. IXP4xx: Fix compilation failure with CONFIG_IXP4XX_INDIRECT_PCI. IXP4xx: Drop "__ixp4xx_" prefix from in/out/ioread/iowrite functions for clarity. IXP4xx: Rename indirect MMIO primitives from __ixp4xx_* to __indirect_*. IXP4xx: Ensure index is positive in irq_to_gpio() and npe_request(). ARM: fix insl() and outsl() endianness on IXP4xx architecture. IXP4xx: Fix normally-disabled debugging text in drivers/net/arm/ixp4xx_eth.c. IXP4xx: change the timer base frequency to 66.666000 MHz.
2009-12-08Merge branch 'omap-for-linus' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6 * 'omap-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6: (149 commits) arm: omap: Add omap3_defconfig AM35xx: Defconfig for AM3517 EVM board AM35xx: Add support for AM3517 EVM board omap: 3630sdp: defconfig creation omap: 3630sdp: introduce 3630 sdp board support omap3: Add defconfig for IGEP v2 board omap3: Add minimal IGEP v2 support omap3: Add CompuLab CM-T35 defconfig omap3: Add CompuLab CM-T35 board support omap3: rx51: Add wl1251 wlan driver support omap3: rx51: Add SDRAM init omap1: Add default kernel configuration for Herald omap1: Add board support and LCD for HTC Herald omap: zoom2: update defconfig for LL_DEBUG_NONE omap: zoom3: defconfig creation omap3: zoom: Introduce zoom3 board support omap3: zoom: Drop i2c-1 speed to 2400 omap3: zoom: rename zoom2 name to generic zoom omap3: zoom: split board file for software reuse omap3evm: MIgrate to smsc911x ethernet driver ... Fix trivial conflict (two unrelated config options added next to each other) in arch/arm/mach-omap2/Makefile
2009-12-05IXP4xx: move FSG platform macros to the platform code.Krzysztof Hałasa1-0/+7
Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
2009-11-27collie: locomo-led change default triggerThomas Kunze1-1/+1
Collie uses now the powersupply framework. Change the default led-trigger of locomo-led to reflect that.
2009-11-22Merge 7xx-iosplit-plat-merge with omap-fixesTony Lindgren1-1/+1
Merge branch '7xx-iosplit-plat-merge' into omap-for-linus
2009-11-16leds-gpio: fix possible crash on OF device unbindingDmitry Eremin-Solenikov1-0/+2
If there are leds present in the OF tree, but the GPIOs for (some) of them are unavailable, led_data doesn't get populated with correct devices. Then, on device unbinding, one can crash the kernel. Workaround this by setting led->gpio to invalid value early. Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
2009-10-20omap: headers: Move remaining headers from include/mach to include/platTony Lindgren1-1/+1
Move the remaining headers under plat-omap/include/mach to plat-omap/include/plat. Also search and replace the files using these headers to include using the right path. This was done with: #!/bin/bash mach_dir_old="arch/arm/plat-omap/include/mach" plat_dir_new="arch/arm/plat-omap/include/plat" headers=$(cd $mach_dir_old && ls *.h) omap_dirs="arch/arm/*omap*/ \ drivers/video/omap \ sound/soc/omap" other_files="drivers/leds/leds-ams-delta.c \ drivers/mfd/menelaus.c \ drivers/mfd/twl4030-core.c \ drivers/mtd/nand/ams-delta.c" for header in $headers; do old="#include <mach\/$header" new="#include <plat\/$header" for dir in $omap_dirs; do find $dir -type f -name \*.[chS] | \ xargs sed -i "s/$old/$new/" done find drivers/ -type f -name \*omap*.[chS] | \ xargs sed -i "s/$old/$new/" for file in $other_files; do sed -i "s/$old/$new/" $file done done for header in $(ls $mach_dir_old/*.h); do git mv $header $plat_dir_new/ done Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-10-05leds: leds-pca9532 - Drop unused module parametersJean Delvare1-3/+0
The I2C_CLIENT_INSMOD_1 macro is only useful for i2c drivers which implement device detection. The leds-pca9532 driver doesn't, so there is no point in calling it. Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: Richard Purdie <rpurdie@rpsys.net> Cc: Riku Voipio <riku.voipio@iki.fi>
2009-09-26Merge branch 'for-linus' of git://git.o-hand.com/linux-rpurdie-ledsLinus Torvalds9-30/+379
* 'for-linus' of git://git.o-hand.com/linux-rpurdie-leds: leds: move leds-clevo-mail's probe function to .devinit.text leds: Fix indentation in LEDS_LP3944 Kconfig entry leds: Fix LED names leds: Fix leds-pca9532 whitespace issues leds: fix coding style in worker thread code for ledtrig-gpio. leds: gpio-leds: fix typographics fault leds: Add WM831x status LED driver
2009-09-24Merge branch 'for-linus' of ↵Linus Torvalds1-0/+8
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: add driver for Atmel AT42QT2160 Sensor Chip Input: max7359 - use threaded IRQs Input: add driver for Maxim MAX7359 key switch controller Input: add driver for ADP5588 QWERTY I2C Keypad Input: add touchscreen driver for MELFAS MCS-5000 controller Input: add driver for OpenCores Keyboard Controller Input: dm355evm_keys - remove dm355evm_keys_hardirq Input: synaptics_i2c - switch to using __cancel_delayed_work() Input: ad7879 - add support for AD7889 Input: atkbd - rely on input core to restore state on resume Input: add generic suspend and resume for input devices Input: libps2 - additional locking for i8042 ports
2009-09-23spi: prefix modalias with "spi:"Anton Vorontsov1-0/+1
This makes it consistent with other buses (platform, i2c, vio, ...). I'm not sure why we use the prefixes, but there must be a reason. This was easy enough to do it, and I did it. Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Cc: David Brownell <dbrownell@users.sourceforge.net> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Grant Likely <grant.likely@secretlab.ca> Cc: Jean Delvare <khali@linux-fr.org> Cc: Ben Dooks <ben-linux@fluff.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Dmitry Torokhov <dtor@mail.ru> Cc: Samuel Ortiz <sameo@openedhand.com> Cc: "John W. Linville" <linville@tuxdriver.com> Acked-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-09-18Input: libps2 - additional locking for i8042 portsDmitry Torokhov1-0/+8
The serio ports on i8042 are not completely isolated; while we provide enough locking to ensure proper serialization when accessing control and data registers AUX and KBD ports can still have an effect on each other on PS/2 protocol level. The most prominent effect is that issuing a command for the device connected to one port may cause abort of the command currently executing by the device connected to another port. Since i8042 nor serio subsystem are not aware of the details of the PS/2 protocol (length of the commands and their replies and so on) the locking should be done on libps2 level by adding special handling when we see that we are dealing with serio port on i8042. Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2009-09-07leds: move leds-clevo-mail's probe function to .devinit.textUwe Kleine-König1-1/+1
A pointer to clevo_mail_led_probe is passed to the core via platform_driver_register and so the function must not disappear when the .init sections are discarded. Otherwise (if also having HOTPLUG=y) unbinding and binding a device to the driver via sysfs will result in an oops as does a device being registered late. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
2009-09-07leds: Fix indentation in LEDS_LP3944 Kconfig entryAntonio Ospite1-3/+3
Signed-off-by: Antonio Ospite <ospite@studenti.unina.it> Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
2009-09-07leds: Fix LED names Olaf Hering2-3/+3
This is needed to get kde-powersave to work properly on some g4 powerbooks. From: Olaf Hering <olh@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
2009-09-07leds: Fix leds-pca9532 whitespace issuesRichard Purdie1-6/+6
Signed-off-by: Richard Purdie <rpurdie@linux.intel.com
2009-09-07leds: fix coding style in worker thread code for ledtrig-gpio.Thadeu Lima de Souza Cascardo1-16/+16
[akpm@linux-foundation.org: coding-style fixes] Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@holoscopio.com> Signed-off-by: Samuel R. C. Vale <srcvale@holoscopio.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
2009-09-07leds: gpio-leds: fix typographics faultMichal Simek1-1/+1
[akpm@linux-foundation.org: coding-style fixes] Signed-off-by: Michal Simek <monstr@monstr.eu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
2009-09-07leds: Add WM831x status LED driverMark Brown3-0/+349
The WM831x devices feature two software controlled status LEDs with hardware assisted blinking. The device can also autonomously control the LEDs based on a selection of sources. This can be configured at boot time using either platform data or the chip OTP. A sysfs file in the style of that for triggers allowing the control source to be configured at run time. Triggers can't be used here since they can't depend on the implementation details of a specific LED type. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
2009-08-27leds: after setting inverted attribute, we must update the LEDThadeu Lima de Souza Cascardo1-0/+3
If we change the inverted attribute to another value, the LED will not be inverted until we change the GPIO state. Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@holoscopio.com> Cc: Samuel R. C. Vale <srcvale@holoscopio.com> Cc: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-08-27leds: fix multiple requests and releases of IRQ for GPIO LED TriggerThadeu Lima de Souza Cascardo1-7/+14
When setting the same GPIO number, multiple IRQ shared requests will be done without freing the previous request. It will also try to free a failed request or an already freed IRQ if 0 was written to the gpio file. All these oops and leaks were fixed with the following solution: keep the previous allocated GPIO (if any) still allocated in case the new request fails. The alternative solution would desallocate the previous allocated GPIO and set gpio as 0. Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@holoscopio.com> Signed-off-by: Samuel R. C. Vale <srcvale@holoscopio.com> Cc: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-07-03Update Yoichi Yuasa's e-mail addressYoichi Yuasa1-1/+1
Signed-off-by: Yoichi Yuasa <yuasa@linux-mips.org> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-06-23leds: Add options to have GPIO LEDs start on or keep their stateTrent Piepho1-3/+17
There already is a "default-on" trigger but there are problems with it. For one, it's a inefficient way to do it and requires led trigger support to be compiled in. But the real reason is that is produces a glitch on the LED. The GPIO is allocate with the LED *off*, then *later* when the trigger runs it is turned back on. If the LED was already on via the GPIO's reset default or action of the firmware, this produces a glitch where the LED goes from on to off to on. While normally this is fast enough that it wouldn't be noticeable to a human observer, there are still serious problems. One is that there may be something else on the GPIO line, like a hardware alarm or watchdog, that is fast enough to notice the glitch. Another is that the kernel may panic before the LED is turned back on, thus hanging with the LED in the wrong state. This is not just speculation, but actually happened to me with an embedded system that has an LED which should turn off when the kernel finishes booting, which was left in the incorrect state due to a bug in the OF LED binding code. We also let GPIO LEDs get their initial value from whatever the current state of the GPIO line is. On some systems the LEDs are put into some state by the firmware or hardware before Linux boots, and it is desired to have them keep this state which is otherwise unknown to Linux. This requires that the underlying GPIO driver support reading the value of output GPIOs. Some drivers support this and some do not. The platform device binding gains a field in the platform data "default_state" that controls this. There are three constants defined to select from on, off, or keeping the current state. The OpenFirmware binding uses a property named "default-state" that can be set to "on", "off", or "keep". The default if the property isn't present is off. Signed-off-by: Trent Piepho <xyzzy@speakeasy.org> Acked-by: Grant Likely <grant.likely@secretlab.ca> Acked-by: Wolfram Sang <w.sang@pengutronix.de> Acked-by: Sean MacLennan <smaclennan@pikatech.com> Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
2009-06-23leds: LED driver for National Semiconductor LP3944 Funlight ChipAntonio Ospite3-0/+478
LEDs driver for National Semiconductor LP3944 Funlight Chip http://www.national.com/pf/LP/LP3944.html This helper chip can drive up to 8 leds, with two programmable DIM modes; it could even be used as a gpio expander but this driver assumes it is used as a led controller. The DIM modes are used to set _blink_ patterns for leds, the pattern is specified supplying two parameters: - period: from 0s to 1.6s - duty cycle: percentage of the period the led is on, from 0 to 100 LP3944 can be found on Motorola A910 smartphone, where it drives the rgb leds, the camera flash light and the displays backlights. Signed-off-by: Antonio Ospite <ospite@studenti.unina.it> Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
2009-06-23leds: pca9532 - Indent using tabs, not spaces.Antonio Ospite1-29/+29
Indent using tabs, not spaces. Signed-off-by: Antonio Ospite <ospite@studenti.unina.it> Acked-by: Riku Voipio <riku.voipio@iki.fi> Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
2009-06-23leds: Remove an orphan Kconfig entryRichard Purdie1-10/+0
Remove an orphan Kconfig entry (LEDS_LP5521) Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
2009-06-23leds: alix-leds2 fixed for Award BIOSTobias Mueller2-1/+7
Add initialisation of GPIO ports for compatibility with boards with Award BIOS (e.g. ALIX.3D3). Signed-off-by: Tobias Mueller <Tobias_Mueller@twam.info> Reviewed-by: Constantin Baranov <const@mimas.ru> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
2009-06-23leds: leds-gpio - fix a section mismatchZhenwen Xu1-1/+1
WARNING: drivers/leds/leds-gpio.o(.text+0x153): Section mismatch in reference from the function gpio_led_probe() to the function .devinit.text:create_gpio_led() The function gpio_led_probe() references the function __devinit create_gpio_led(). This is often because gpio_led_probe lacks a __devinit annotation or the annotation of create_gpio_led is wrong. Signed-off-by: Zhenwen Xu <helight.xu@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
2009-06-23leds: add the sysfs interface into the leds-bd2802 driver for changing wave ↵Kim Kyuwon1-13/+73
pattern and led current. Allow the user application to change the wave pattern and led current by 'wave_pattern' and 'rgb_current' sysfs files. Signed-off-by: Kim Kyuwon <q1.kim@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
2009-06-23leds: change the license informationKim Kyuwon1-1/+1
Change the license to 'GPL v2' Signed-off-by: Kim Kyuwon <q1.kim@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
2009-06-23leds: fix led-bd2802 errors while resumingKim Kyuwon1-7/+1
LED_CORE_SUSPENDRESUME flag is not needed in the bd2802 driver, because all works for suspend/resume is done in bd2802_suspend and bd2802_suspend functions. And this patch allows bd2802 to be configured again when it resumes from suspend. Signed-off-by: Kim Kyuwon <q1.kim@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
2009-05-18[ARM] S3C24XX: GPIO: Move gpio functions out of <mach/hardware.h>Ben Dooks2-0/+3
Move all the gpio functions out of <mach/hardware.h> as this file is for defining the generic IO base addresses for the kernel IO calls. Make a new header <mach/gpio-fns.h> to take this and include it via the chain from <linux/gpio.h> which is what most of these files should be using (and will be changed as soon as possible). Note, this does make minor changes to some drivers but should not mess up any pending merges. CC: Richard Purdie <rpurdie@rpsys.net> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> CC: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-04-08leds: just ignore invalid GPIOs in leds-gpioDavid Brownell1-1/+1
Fix build problems with leds-gpio: CC drivers/leds/leds-gpio.o drivers/leds/leds-gpio.c: In function 'create_gpio_led': drivers/leds/leds-gpio.c:85: warning: 'return' with no value, in function returning non-void Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
2009-04-06leds: introduce lp5521 led driverFelipe Balbi1-0/+10
LP5521 is a three channel led driver with support for hardware accelerated patterns (currently used via lp5521-only sysfs interface). Currently, it's used on n810 device. Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com> Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
2009-04-06leds: just ignore invalid GPIOs in leds-gpioDavid Brownell1-0/+9
Sometimes it's awkward to make sure that the array in the platform_data handed to the leds-gpio driver has only valid data ... some leds may not be always available, and coping with that currently requires patching or rebuilding the array. This patch fixes that by making it be OK to pass an invalid GPIO (such as "-EINVAL") ... such table entries are skipped. [rpurdie@linux.intel.com: adjusted to apply against other led tree changes] Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Tested-by: Diego Dompe <diego.dompe@ridgerun.com> Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
2009-04-06leds: Fix &&/|| confusion in leds-pca9532.cRiku Voipio1-1/+1
This fixes the expression in the driver to do the correct thing, not that I think anyone would send SND_* without EV_SND. Thanks to Roel Kluin <roel.kluin@gmail.com> for noticing. Signed-off-by: Riku Voipio <riku.voipio@iki.fi> Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
2009-04-06leds: move h1940-leds's probe function to .devinit.textUwe Kleine-König1-1/+1
A pointer to h1940leds_probe is passed to the core via platform_driver_register and so the function must not disappear when the .init sections are discarded. Otherwise (if also having HOTPLUG=y) unbinding and binding a device to the driver via sysfs will result in an oops as does a device being registered late. An alternative to this patch is using platform_driver_probe instead of platform_driver_register plus removing the pointer to the probe function from the struct platform_driver. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
2009-04-06leds: remove an unnecessary "goto" on drivers/leds/leds-s3c24.cZhenwen Xu1-5/+2
This goto is unnecessary. Signed-off-by: Zhenwen Xu <helight.xu@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
2009-04-06leds: add BD2802GU LED driverKim Kyuwon3-0/+773
ROHM BD2802GU is a RGB LED controller attached to i2c bus and specifically engineered for decoration purposes. This RGB controller incorporates lighting patterns and illuminates. This driver is designed to minimize power consumption, so when there is no emitting LED, it enters to reset state. And because the BD2802GU has lots of features that can't be covered by the current LED framework, it provides Advanced Configuration Function(ADF) mode, so that user applications can set registers of BD2802GU directly. Here are basic usage examples : ; to turn on LED (not blink) $ echo 1 > /sys/class/leds/led1_R/brightness ; to blink LED $ echo timer > /sys/class/leds/led1_R/trigger $ echo 1 > /sys/class/leds/led1_R/delay_on $ echo 1 > /sys/class/leds/led1_R/delay_off ; to turn off LED $ echo 0 > /sys/class/leds/led1_R/brightness [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: Kim Kyuwon <chammoru@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
2009-04-06leds: remove experimental flag from leds-clevo-mailNémeth Márton1-2/+2
The leds-clevo-mail driver is in the mainline kernel since 2.6.25 and works without severe problems. Make this driver available for a larger audience. Signed-off-by: Márton Németh <nm127@freemail.hu> Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
2009-04-06leds: Prevent multiple LED triggers with the same nameAdam Nielsen1-1/+9
Signed-off-by: Adam Nielsen <a.nielsen@shikadi.net> Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
2009-04-06leds: Add gpio-led triggerFelipe Balbi3-0/+253
The gpio led trigger will allow leds to be triggered by gpio events. When we give the led a gpio number, the trigger will request_irq() on that so we don't have to keep polling for gpio state. It's useful for usecases as n810's keypad leds that could be triggered by the gpio event generated when user slides up to show the keypad. We also provide means for userland to tell us what is the desired brightness for that special led when it goes on so userland could use information from ambient light sensors and not set led brightness too high if it's not necessary. Signed-off-by: Felipe Balbi <me@felipebalbi.com> Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
2009-04-06leds: Add rb532 LED driver for the User LEDPhil Sutter3-0/+85
Mikrotik built six LEDs into the Routerboard 532, from which one is destined for custom use, the so called "User LED". This patch adds a driver for it, based on the LEDs class. Signed-off-by: Phil Sutter <n0-1@freewrt.org> Acked-by: Florian Fainelli <florian@openwrt.org> Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
2009-04-06leds: Add suspend/resume state flags to leds-gpioRichard Purdie1-1/+2
Add an option to preserve LED state when suspending/resuming to the LED gpio driver. Based on a suggestion from Robert Jarzmik. Tested-by: Robert Jarzmik <robert.jarzmik@free.fr> Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
2009-04-06leds: simple driver for pwm driven LEDsLuotao Fu3-0/+160
Add a simple driver for pwm driver LEDs. pwm_id and period can be defined in board file. It is developed for pxa, however it is probably generic enough to be used on other platforms with pwm. Signed-off-by: Luotao Fu <l.fu@pengutronix.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
2009-04-06leds: Fix leds-gpio driver multiple module_init/exit usageRichard Purdie1-19/+27
You can't have multiple module_init()/module_exit calls so resort to messy ifdefs potentially pending some code refactoring. Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
2009-04-06leds: Add dac124s085 driverGuennadi Liakhovetski3-0/+160
Add an LED driver using the DAC124S085 DAC from NatSemi [randy.dunlap@oracle.com: use header files for interfaces] Signed-off-by: Guennadi Liakhovetski <lg@denx.de> Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
2009-04-06leds: allow led-drivers to use a variable range of brightness valuesGuennadi Liakhovetski6-8/+28
This patch allows drivers to override the default maximum brightness value of 255. We take care to preserve backwards-compatibility as much as possible, so that user-space ABI doesn't change for existing drivers. LED trigger code has also been updated to use the per-LED maximum. Signed-off-by: Guennadi Liakhovetski <lg@denx.de> Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
2009-04-06leds: Add openfirmware platform device supportTrent Piepho2-44/+182
Add bindings to support LEDs defined as of_platform devices in addition to the existing bindings for platform devices. New options in Kconfig allow the platform binding code and/or the of_platform code to be turned on. The of_platform code is of course only available on archs that have OF support. The existing probe and remove methods are refactored to use new functions create_gpio_led(), to create and register one led, and delete_gpio_led(), to unregister and free one led. The new probe and remove methods for the of_platform driver can then share most of the common probe and remove code with the platform driver. The suspend and resume methods aren't shared, but they are very short. The actual led driving code is the same for LEDs created by either binding. The OF bindings are based on patch by Anton Vorontsov <avorontsov@ru.mvista.com>. They have been extended to allow multiple LEDs per device. Signed-off-by: Trent Piepho <tpiepho@freescale.com> Acked-by: Grant Likely <grant.likely@secretlab.ca> Acked-by: Sean MacLennan <smaclennan@pikatech.com> Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
generated by cgit v1.2.3 (git 2.39.0) at 2024-11-15 11:18:29 +0300