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2014-11-19leds: lp8860: Introduce TI lp8860 4 channel LED driverDan Murphy1-0/+29
Introduce the Texas Instruments lp8860 4 channel LED driver. This driver configures the device in display cluster mode as this seems to be the most used configuration at the time of the driver configuration. For more product information please see the link below: http://www.ti.com/product/lp8860-q1 Signed-off-by: Dan Murphy <dmurphy@ti.com> Signed-off-by: Bryan Wu <cooloney@gmail.com>
2014-09-26leds: add device tree bindings for register bit LEDsLinus Walleij1-0/+99
This adds the device tree bindings used by register bit LEDs. Cc: devicetree@vger.kernel.org Cc: Bryan Wu <cooloney@gmail.com> Cc: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-07-22Documentation: dts: tcs6507: Fix wrong statement about #gpio-cellsMarek Belisko1-1/+1
Update comment about gpio-cells which says not correctly to be set to 0. When we want to reference tca6507 gpio #gpio-cells must be set to 2 (it is already correct in example). Signed-off-by: Marek Belisko <marek@goldelico.com> Signed-off-by: Bryan Wu <cooloney@gmail.com>
2014-07-03leds:pca963x: Update for PCA9635 and correct statement about MODE2 OUTDRV ↵Peter Meerwald1-4/+5
default mention support for 16 LED PCA9635 chip the default of MODE2's OUTDRV was incorrectly stated Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net> Signed-off-by: Bryan Wu <cooloney@gmail.com>
2014-05-08leds: lp55xx: add DT bindings for LP55231Daniel Mack1-1/+7
The TI55231 appears to be fully compatible to the 5523 model from National Semicondutor. This patch just adds DT bindings for it. Signed-off-by: Daniel Mack <zonque@gmail.com> Acked-by: Milo Kim <milo.kim@ti.com> Signed-off-by: Bryan Wu <cooloney@gmail.com>
2014-05-08leds: leds-pwm: add DT support for LEDs wired to supplyRussell King1-0/+2
The non-DT driver allowed an active low property to be specified, but DT is missing this in its description. Add the property to the DT binding document, making it optional. It defaults to active high, which retains compatibility with existing descriptions. This should only be used for causes where the LED is wired to supply, and the PWM does not sensibly support its own inversion. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Bryan Wu <cooloney@gmail.com>
2014-02-27leds: leds-gpio: add retain-state-suspended propertyRobin Gong1-0/+12
Some gpio-leds need retain the state even in suspend, such as charger led. But this property missed in devicetree, add it. (cooloney@gmail.com: fold DT binding updates into this patch) Signed-off-by: Robin Gong <b38343@freescale.com> Signed-off-by: Bryan Wu <cooloney@gmail.com>
2014-01-27LEDS: tca6507: add device-tree support for GPIO configuration.NeilBrown1-0/+16
The 7 lines driven by the TCA6507 can either drive LEDs or act as output-only GPIOs. To make this distinction in devicetree we use the "compatible" property. If the device attached to a line is "compatible" with "gpio", we treat it like a GPIO. If it is "compatible" with "led" (or if no "compatible" value is set) we treat it like an LED. (cooloney@gmail.com: fix typo in the subject) Signed-off-by: NeilBrown <neilb@suse.de> Signed-off-by: Bryan Wu <cooloney@gmail.com>
2013-10-25leds: lp55xx: handle enable pin in driverSebastian Reichel1-0/+1
This patch moves the handling of the chip's enable pin from the board code into the driver. It also updates all board-code files using the driver to incorporate this change. This is needed for device tree support of the enable pin. Signed-off-by: Sebastian Reichel <sre@debian.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Bryan Wu <cooloney@gmail.com>
2013-10-22leds: lp55xx: enable setting default triggerLinus Walleij1-3/+7
This enables setting a default trigger on an LP55xx channel, either from platform data or device tree. This mechanism is identical to the mechanism for GPIO LEDs and references the common LEDs device tree bindings. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Tested-by: Milo Kim <milo.kim@ti.com> Acked-by: Milo Kim <milo.kim@ti.com> Signed-off-by: Bryan Wu <cooloney@gmail.com>
2013-08-26leds-pca9633: Rename to leds-pca963xRicardo Ribalda Delgado1-0/+0
The driver now supports the chips pca9633 and pca9634, therefore we rename the files to more generic and meaningul names Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com> Signed-off-by: Bryan Wu <cooloney@gmail.com>
2013-08-26leds-pca9633: Add support for PCA9634Ricardo Ribalda Delgado1-5/+6
Add support for PCA9634 chip, which belongs to the same family as the 9633 but with support for 8 outputs instead of 4. Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com> Signed-off-by: Bryan Wu <cooloney@gmail.com>
2013-08-26leds: pca9633: Add hardware blink supportMark A. Greer1-0/+1
Add hardware blinking support to the pca9633 driver. NOTE: Hardware blinking violates the leds infrastructure driver interface since the hardware only supports blinking all LEDs with the same delay_on/delay_off rates. That is, only the LEDs that are set to blink will actually blink but all LEDs that are set to blink will blink in identical fashion. The delay_on/delay_off values of the last LED that is set to blink will be used for all of the blinking LEDs. If the hardware doesn't support the requested blinking pattern, a default of 500ms on and off will be used. Hardware blinking is disabled by default but can be enabled by setting the 'blink_type' member in the platform_data struct to 'PCA9633_HW_BLINK' or by adding the 'nxp,hw-blink' property to the DTS. (fengguang.wu@intel.com: Removes unneeded semicolon.) Signed-off-by: Mark A. Greer <mgreer@animalcreek.com> Reported-by: Fengguang Wu <fengguang.wu@intel.com> Signed-off-by: Bryan Wu <cooloney@gmail.com>
2013-08-26leds: support new LP8501 device - another LP55xx commonKim, Milo1-1/+71
LP8501 can drive up to 9 channels like LP5523. LEDs can be controlled directly via the I2C and programmable engines are supported. LP55xx common driver LP8501 is one of LP55xx family device, so LP55xx common code are used. Chip specific data is defined in the structure, 'lp55xx_device_config'. Differences between LP8501 and LP5523 Different register layout for LED output control and others. LP8501 specific feature for separate output power selection. LP8501 doesn't support external clock detection. Different programming engine data. LP8501 specific feature - output power selection Output channels are selected by power selection - Vout or Vdd. Separate power for VDD1-6 and VDD7-9 are available. It is configurable in the platform data. To support this feature, LP55xx DT structure and header are changed. Device tree binding is updated as well. LED pattern data Example pattern data is updated in the driver documentation. Signed-off-by: Milo Kim <milo.kim@ti.com> Signed-off-by: Bryan Wu <cooloney@gmail.com>
2013-08-26leds: Add device tree binding for pca9633Tony Lindgren1-0/+45
Similar to tca6507, we can just parse the standard LED properties for pca9633. Tested on a pca9632, which is compatible with pca9633. Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Bryan Wu <cooloney@gmail.com>
2013-06-20leds: lp5562: support the device tree featureKim, Milo1-2/+35
The LP55xx DT structure is applicable to the LP5562 device. The driver and documentation are updated. Compatible property of the DT : LP5521 and LP5223 were manufactured by National Semiconductor. LP5562 is a new device from Texas Instruments. Cc: Gabriel Fernandez <gabriel.fernandez@stericsson.com> Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Bryan Wu <cooloney@gmail.com>
2013-06-20leds: lp55xx: support dynamic channel settings in the device tree structureKim, Milo1-8/+101
Currently, the LP55xx DT structure supports max 3 channels. However, LP5523 has max 9 channels and LP5562 has 4 channels. To enhance this constraint, the DT structure has been changed. (a) Use the child node for various channel settings instead of fixed array (b) Remove 'num_channel' property. This value can be retrieved by counting the children node. (c) 'chan-name' property supported (d) Documentation updates for LP5521 and LP5523 (cooloney@gmail.com: fix a coding style issue in leds-lp55xx.txt) Cc: Gabriel Fernandez <gabriel.fernandez@stericsson.com> Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Bryan Wu <cooloney@gmail.com>
2013-06-20leds: lp55xx: add support for Device Tree bindingsLinus Walleij1-0/+21
This patch allows the lp5521 driver to be successfully probed and initialised when Device Tree support is enabled. Based on a patch by Gabriel Fernandez, rewritten in accordance with review feedback. Cc: Gabriel Fernandez <gabriel.fernandez@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Milo Kim <milo.kim@ti.com> Signed-off-by: Bryan Wu <cooloney@gmail.com>
2013-04-24doc: devicetree: Fix various typosMasanari Iida1-1/+1
Fix spelling typos in Documentation/devicetree/bindings. Signed-off-by: Masanari Iida <standby24x7@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2013-02-26Merge branch 'for-next' of ↵Linus Torvalds2-0/+81
git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds Pull LED subsystem update from Bryan Wu. * 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds: (61 commits) leds: leds-sunfire: use dev_err()/pr_err() instead of printk() leds: 88pm860x: Add missing of_node_put() leds: tca6507: Use of_get_child_count() leds: leds-pwm: make it depend on PWM and not HAVE_PWM Documentation: leds: update LP55xx family devices leds-lp55xx: fix problem on removing LED attributes leds-lp5521/5523: add author and copyright description leds-lp5521/5523: use new lp55xx common header leds-lp55xx: clean up headers leds-lp55xx: clean up definitions leds-lp55xx: clean up unused data and functions leds-lp55xx: clean up _remove() leds-lp55xx: add new function for removing device attribtues leds-lp55xx: code refactoring on selftest function leds-lp55xx: use common device attribute driver function leds-lp55xx: support device specific attributes leds-lp5523: use generic firmware interface leds-lp5521: use generic firmware interface leds-lp55xx: support firmware interface leds-lp55xx: add new lp55xx_register_sysfs() for the firmware interface ...
2013-02-07devicetree: Move NS2 LEDs binding into LEDs directoryGrant Likely1-0/+26
leds-ns2.txt is a binding for LEDs, not GPIOs. Move the documentation in with the rest of the LEDs bindings. Cc: Andrew Lunn <andrew@lunn.ch> Cc: Simon Guinot <simon.guinot@sequanux.org> Cc: Jason Cooper <jason@lakedaemon.net> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2013-02-01leds: leds-pwm: Add device tree bindingsPeter Ujfalusi1-0/+48
The DT binding for the pwm-leds devices are similar to the gpio-leds type. LEDs are represented as sub-nodes of the pwm-leds device. The code for handling the DT boot is based on the code found in the leds-gpio driver and adapted to use PWMs instead of GPIOs. To avoid having custom cleanup code in case of DT boot the newly created devm_of_pwm_get() API is used to get the correct PWM instance. For usage see: Documentation/devicetree/bindings/leds/leds-pwm.txt Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Acked-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Bryan Wu <cooloney@gmail.com>
2013-02-01leds/tca6507: DT: Add documentation for tca6507 devicetree bindings.Marek Belisko1-0/+33
Signed-off-by: Marek Belisko <marek.belisko@open-nandra.com> Signed-off-by: Bryan Wu <cooloney@gmail.com>
2012-12-06devicetree/bindings: Move gpio-leds binding into leds directoryGrant Likely1-0/+52
Merely reorganizing documentation. No functional changes. It makes more sense for the gpio-leds binding to be grouped with other led bindings than with gpio drivers. Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2012-11-21Documentation: Move common leds properties description to separate file.Marek Belisko1-0/+23
There are several drivers that use LEDs and depend on exactly the same device tree binding. However, the binding documentation has simply been cut-and-paste into each of the binding documents. Rather than continue to duplicate it, this patch adds a common led binding document that all can reference. Signed-off-by: Marek Belisko <marek.belisko@open-nandra.com> Reviewed-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>

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