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* leds: mc13783: Fix "uninitialized variable" warningAlexander Shiyan2013-07-021-1/+1
| | | | | | | | drivers/leds/leds-mc13783.c: In function 'mc13xxx_led_probe': drivers/leds/leds-mc13783.c:195:2: warning: 'ret' may be used uninitialized in this function [-Wmaybe-uninitialized] Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Bryan Wu <cooloney@gmail.com>
* leds: Convert led class driver from legacy pm ops to dev_pm_opsShuah Khan2013-06-211-3/+7
| | | | | | | | | | | Convert drivers/leds/led-class to use dev_pm_ops for power management and remove Legacy PM ops hooks. With this change, led class registers suspend/resume callbacks via class->pm (dev_pm_ops) instead of Legacy class->suspend/resume. When __device_suspend() runs call-backs, it will find class->pm ops for the led class. Signed-off-by: Shuah Khan <shuah.kh@samsung.com> Signed-off-by: Bryan Wu <cooloney@gmail.com>
* leds: leds-mc13783: Add MC13892 LED supportAlexander Shiyan2013-06-212-4/+62
| | | | | | Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Tested-by: Philippe Retornaz <philippe.retornaz@epfl.ch> Signed-off-by: Bryan Wu <cooloney@gmail.com>
* leds: leds-mc13783: Prepare driver to support MC13892 LEDsAlexander Shiyan2013-06-211-250/+156
| | | | | | | | | | | This patch rewrite driver code to be ready to add support for MC13892 LEDs and probe from devicetree. (cooloney@gmail.com: fix one coding style issue when apply this patch) Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Tested-by: Philippe Retornaz <philippe.retornaz@epfl.ch> Signed-off-by: Bryan Wu <cooloney@gmail.com>
* leds: renesas-tpu: cleanup a small type issueDan Carpenter2013-06-211-4/+4
| | | | | | | | | | | | | Static checkers complain that, although this is declared as an unsigned long, we can only use the lower 32 bits. For anything higher, we hit bugs widening then bitwise negate or wrapping bugs doing the left shift. From looking at the context, this is not a problem because we only use 16 bits. I've changed some types to make it more clear. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Bryan Wu <cooloney@gmail.com>
* leds: use platform_{get,set}_drvdata()Jingoo Han2013-06-213-4/+4
| | | | | | | | | Use the wrapper functions for getting and setting the driver data using platform_device instead of using dev_{get,set}_drvdata() with &pdev->dev, so we can directly pass a struct platform_device. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Bryan Wu <cooloney@gmail.com>
* leds: leds-gpio: Let device core handle pinctrlFabio Estevam2013-06-211-6/+0
| | | | | | | | | | Since commit ab78029 (drivers/pinctrl: grab default handles from device core) we can rely on device core for handling pinctrl, so remove devm_pinctrl_get_select_default() from the driver. Reported-by: Stephen Warren <warren@wwwdotorg.org> Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by: Bryan Wu <cooloney@gmail.com>
* leds: lp5562: Properly setup of_device_id tableAxel Lin2013-06-211-1/+10
| | | | | | | | Don't mix of_device_id entry in i2c_device_id table. Signed-off-by: Axel Lin <axel.lin@ingics.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Bryan Wu <cooloney@gmail.com>
* leds: lp5523: Properly setup of_device_id tableAxel Lin2013-06-211-1/+10
| | | | | | | | Don't mix of_device_id entry in i2c_device_id table. Signed-off-by: Axel Lin <axel.lin@ingics.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Bryan Wu <cooloney@gmail.com>
* leds: lp5521: Properly setup of_device_id tableAxel Lin2013-06-211-1/+9
| | | | | | | | Don't mix of_device_id entry in i2c_device_id table. Signed-off-by: Axel Lin <axel.lin@ingics.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Bryan Wu <cooloney@gmail.com>
* leds: lp5562: support the device tree featureKim, Milo2013-06-211-5/+14
| | | | | | | | | | | | | | 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>
* leds: lp55xx: support dynamic channel settings in the device tree structureKim, Milo2013-06-211-35/+26
| | | | | | | | | | | | | | | | | | | 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>
* leds: leds-ns2: remove unnecessary platform_set_drvdata()Jingoo Han2013-06-211-2/+0
| | | | | | | | | | The driver core clears the driver data to NULL after device_release or on probe failure, since commit 0998d0631001288a5974afc0b2a5f568bcdecb4d (device-core: Ensure drvdata = NULL when no driver is bound). Thus, it is not needed to manually clear the device driver data to NULL. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Bryan Wu <cooloney@gmail.com>
* leds: leds-mc13783: remove unnecessary platform_set_drvdata()Jingoo Han2013-06-211-1/+0
| | | | | | | | | | The driver core clears the driver data to NULL after device_release or on probe failure, since commit 0998d0631001288a5974afc0b2a5f568bcdecb4d (device-core: Ensure drvdata = NULL when no driver is bound). Thus, it is not needed to manually clear the device driver data to NULL. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Bryan Wu <cooloney@gmail.com>
* leds: leds-gpio: remove unnecessary platform_set_drvdata()Jingoo Han2013-06-211-2/+0
| | | | | | | | | | The driver core clears the driver data to NULL after device_release or on probe failure, since commit 0998d0631001288a5974afc0b2a5f568bcdecb4d (device-core: Ensure drvdata = NULL when no driver is bound). Thus, it is not needed to manually clear the device driver data to NULL. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Bryan Wu <cooloney@gmail.com>
* leds: atmel-pwm: remove unnecessary platform_set_drvdata()Jingoo Han2013-06-211-1/+0
| | | | | | | | | | The driver core clears the driver data to NULL after device_release or on probe failure, since commit 0998d0631001288a5974afc0b2a5f568bcdecb4d (device-core: Ensure drvdata = NULL when no driver is bound). Thus, it is not needed to manually clear the device driver data to NULL. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Bryan Wu <cooloney@gmail.com>
* leds: lp55xx: add support for Device Tree bindingsLinus Walleij2013-06-214-10/+87
| | | | | | | | | | | | | 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>
* drivers/leds/leds-ot200.c: fix error caused by shifted maskChristian Gmeiner2013-05-251-7/+7
| | | | | | | | | | | | | | | | During the development of this driver an in-house register documentation was used. The last week some integration tests were done and this problem was found. It turned out that the released register documentation is wrong. The fix is very simple: shift all masks by one. Signed-off-by: Christian Gmeiner <christian.gmeiner@gmail.com> Cc: Bryan Wu <cooloney@gmail.com> Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* leds: leds-gpio: reserve gpio before using itTimo Teräs2013-05-211-4/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This reverts commit a99d76f (leds: leds-gpio: use gpio_request_one) and commit 2d7c22f (leds: leds-gpio: set devm_gpio_request_one() flags param correctly) which was a fix of the first one. The conversion to devm_gpio_request in commit e3b1d44c (leds: leds-gpio: use devm_gpio_request_one) is not reverted. The problem is that gpio_cansleep() and gpio_get_value_cansleep() calls can crash if the gpio is not first reserved. Incidentally this same bug existed earlier and was fixed similarly in commit d95cbe61 (leds: Fix potential leds-gpio oops). But the OOPS is real. It happens when GPIOs are provided by module which is not yet loaded. So this fixes the following BUG during my ALIX boot (3.9.2-vanilla): BUG: unable to handle kernel NULL pointer dereference at 0000004c IP: [<c11287d6>] __gpio_cansleep+0xe/0x1a *pde = 00000000 Oops: 0000 [#1] SMP Modules linked in: leds_gpio(+) via_rhine mii cs5535_mfd mfd_core geode_rng rng_core geode_aes isofs nls_utf8 nls_cp437 vfat fat ata_generic pata_amd pata_cs5536 pata_acpi libata ehci_pci ehci_hcd ohci_hcd usb_storage usbcore usb_common sd_mod scsi_mod squashfs loop Pid: 881, comm: modprobe Not tainted 3.9.2 #1-Alpine EIP: 0060:[<c11287d6>] EFLAGS: 00010282 CPU: 0 EIP is at __gpio_cansleep+0xe/0x1a EAX: 00000000 EBX: cf364018 ECX: c132b8b9 EDX: 00000000 ESI: c13993a4 EDI: c1399370 EBP: cded9dbc ESP: cded9dbc DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068 CR0: 8005003b CR2: 0000004c CR3: 0f0c4000 CR4: 00000090 DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000 DR6: ffff0ff0 DR7: 00000400 Process modprobe (pid: 881, ti=cded8000 task=cf094aa0 task.ti=cded8000) Stack: cded9de0 d09471cb 00000000 c1399260 cf364014 00000000 c1399260 c1399254 d0949014 cded9df4 c118cd59 c1399260 d0949014 d0949014 cded9e08 c118ba47 c1399260 d0949014 c1399294 cded9e1c c118bb75 cded9e24 d0949014 00000000 Call Trace: [<d09471cb>] gpio_led_probe+0xba/0x203 [leds_gpio] [<c118cd59>] platform_drv_probe+0x26/0x48 [<c118ba47>] driver_probe_device+0x75/0x15c [<c118bb75>] __driver_attach+0x47/0x63 [<c118a727>] bus_for_each_dev+0x3c/0x66 [<c118b6f9>] driver_attach+0x14/0x16 [<c118bb2e>] ? driver_probe_device+0x15c/0x15c [<c118b3d5>] bus_add_driver+0xbd/0x1bc [<d08b4000>] ? 0xd08b3fff [<d08b4000>] ? 0xd08b3fff [<c118bffc>] driver_register+0x74/0xec [<d08b4000>] ? 0xd08b3fff [<c118c8e8>] platform_driver_register+0x38/0x3a [<d08b400d>] gpio_led_driver_init+0xd/0x1000 [leds_gpio] [<c100116c>] do_one_initcall+0x6b/0x10f [<d08b4000>] ? 0xd08b3fff [<c105e918>] load_module+0x1631/0x1907 [<c10975d6>] ? insert_vmalloc_vmlist+0x14/0x43 [<c1098d5b>] ? __vmalloc_node_range+0x13e/0x15f [<c105ec50>] sys_init_module+0x62/0x77 [<c1257888>] syscall_call+0x7/0xb EIP: [<c11287d6>] __gpio_cansleep+0xe/0x1a SS:ESP 0068:cded9dbc CR2: 000000000000004c ---[ end trace 5308fb20d2514822 ]--- Signed-off-by: Timo Teräs <timo.teras@iki.f> Cc: Sachin Kamat <sachin.kamat@linaro.org> Cc: Raphael Assenat <raph@8d.com> Cc: Trent Piepho <tpiepho@freescale.com> Cc: Javier Martinez Canillas <javier.martinez@collabora.co.uk> Cc: Arnaud Patard <arnaud.patard@rtp-net.org> Cc: Ezequiel Garcia <ezequiel.garcia@free-electrons.com> Acked-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Bryan Wu <cooloney@gmail.com>
* Merge tag 'gpio-for-linus' of git://git.secretlab.ca/git/linuxLinus Torvalds2013-05-091-3/+3
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull removal of GENERIC_GPIO from Grant Likely: "GENERIC_GPIO now synonymous with GPIOLIB. There are no longer any valid cases for enableing GENERIC_GPIO without GPIOLIB, even though it is possible to do so which has been causing confusion and breakage. This branch does the work to completely eliminate GENERIC_GPIO." * tag 'gpio-for-linus' of git://git.secretlab.ca/git/linux: gpio: update gpio Chinese documentation Remove GENERIC_GPIO config option Convert selectors of GENERIC_GPIO to GPIOLIB blackfin: force use of gpiolib m68k: coldfire: use gpiolib mips: pnx833x: remove requirement for GENERIC_GPIO openrisc: default GENERIC_GPIO to false avr32: default GENERIC_GPIO to false xtensa: remove explicit selection of GENERIC_GPIO sh: replace CONFIG_GENERIC_GPIO by CONFIG_GPIOLIB powerpc: remove redundant GENERIC_GPIO selection unicore32: default GENERIC_GPIO to false unicore32: remove unneeded select GENERIC_GPIO arm: plat-orion: use GPIO driver on CONFIG_GPIOLIB arm: remove redundant GENERIC_GPIO selection mips: alchemy: require gpiolib mips: txx9: change GENERIC_GPIO to GPIOLIB mips: loongson: use GPIO driver on CONFIG_GPIOLIB mips: remove redundant GENERIC_GPIO select
| * Convert selectors of GENERIC_GPIO to GPIOLIBAlexandre Courbot2013-04-161-3/+3
| | | | | | | | | | | | | | | | | | GENERIC_GPIO is now equivalent to GPIOLIB and features that depended on GENERIC_GPIO can now depend on GPIOLIB to allow removal of this option. Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Grant Likely <grant.likely@secretlab.ca>
* | leds: leds-asic3: switch to using SIMPLE_DEV_PM_OPSJingoo Han2013-04-011-4/+3
| | | | | | | | | | | | | | | | | | | | Switch to using SIMPLE_DEV_PM_OPS macro to declare the driver's pm_ops. It reduces code size. Also, CONFIG_PM_SLEEP is added to suspend/ resume functions to prevent build warnings when CONFIG_PM_SLEEP is not selected. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Bryan Wu <cooloney@gmail.com>
* | leds: leds-bd2802: add CONFIG_PM_SLEEP to suspend/resume functionsJingoo Han2013-04-011-7/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | Add CONFIG_PM_SLEEP to suspend/resume functions to fix the following build warning when CONFIG_PM_SLEEP is not selected. This is because sleep PM callbacks defined by SIMPLE_DEV_PM_OPS are only used when the CONFIG_PM_SLEEP is enabled. drivers/leds/leds-bd2802.c:766:12: warning: 'bd2802_suspend' defined but not used [-Wunused-function] drivers/leds/leds-bd2802.c:776:12: warning: 'bd2802_resume' defined but not used [-Wunused-function] Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Bryan Wu <cooloney@gmail.com>
* | leds: lp55xx: configure the clock detectionKim, Milo2013-04-012-6/+27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Now LP55xx provides automatic clock detection API, lp55xx_is_extclk_used(). The clock configuration can be done by the driver itself. (a) Concept The default value is set by each driver with clock selection. The internal clock selection bit is updated in case that the external clock is not detected or clock rate is not 32KHz. (b) Change on LP55xx platform data The clock configuration is done automatically, so no need to define 'update_config' in the platform side. Correlated information are removed in the documentations and header. (c) Definitions moved from header to driver files CONFIG register values are moved each driver, LP5521 and LP5562. Not necessary definitions are removed also. Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com> Signed-off-by: Bryan Wu <cooloney@gmail.com>
* | leds: lp55xx: use common clock framework when external clock is usedKim, Milo2013-04-012-0/+40
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Program execution is timed with 32768Hz clock in the LP55xx family devices. To run LED functionalities, LP55xx devices provide two options. One is using internal clock. The other is using external clock. This patch enables external clock detection automatically. If external clock is not detected, then the internal clock will be used in the LP55xx driver. Valid clock rate is 32768Hz in LP55xx devices. This new API is used in each LP55xx driver like LP5521 and LP5562. Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com> Signed-off-by: Bryan Wu <cooloney@gmail.com>
* | leds: leds-ns2: fix oops at module removalSimon Guinot2013-04-011-13/+25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch fixes a regression introduced by commit 72052fcc10 ("leds: leds-ns2: add device tree binding"). When the driver is initialized with device tree data, platform_data pointer is NULL. This causes a kernel oops at removal. To fix this bug, num_leds is moved into driver_data and platform_data is not longer used from ns2_led_remove(). Signed-off-by: Simon Guinot <simon.guinot@sequanux.org> Signed-off-by: Bryan Wu <cooloney@gmail.com>
* | leds: leds-pwm: Defer led_pwm_set() if PWM can sleepFlorian Vaussard2013-04-011-8/+42
| | | | | | | | | | | | | | | | | | | | Call to led_pwm_set() can happen inside atomic context, like triggers. If the PWM call can sleep, defer using a worker. Signed-off-by: Florian Vaussard <florian.vaussard@epfl.ch> Reviewed-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Acked-by: Thierry Reding <thierry.reding@avionic-design.de> Signed-off-by: Bryan Wu <cooloney@gmail.com>
* | leds: lp55xx: fix the sysfs read operationKim, Milo2013-04-012-3/+4
| | | | | | | | | | | | | | | | | | According to a sysfs documentation(Documentation/filesystem/sysfs.txt), scnprintf() should be used in a read operation method. It guarantees safe buffer size(PAGE_SIZE) which is allocated by the sysfs. Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com> Signed-off-by: Bryan Wu <cooloney@gmail.com>
* | leds: lm355x, lm3642: support camera LED triggers for flash and torchKim, Milo2013-04-012-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | LM355x and LM3642 support flash and torch functionality. (Camera driver) (LED trigger for camera) (LED driver) Turn on the flash ...> ledtrig_flash_ctrl(true) ...> LM355x or LM3642 brightness ctrl <actual driving here> Flash/torch LEDs are controlled by other driver using LED camera trigger APIs, ledtrig_flash_ctrl()/ledtrig_torch_ctrl(). Then, actual device control is activated by each LED driver such like LM355x or LM3642. Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com> Signed-off-by: Bryan Wu <cooloney@gmail.com>
* | leds: add camera LED triggersKim, Milo2013-04-013-0/+66
| | | | | | | | | | | | | | | | | | | | Some LED devices support flash/torch functionality through the LED subsystem. This patch enables direct LED trigger controls by the driver. Flash on/off and torch on/off can be done simply by other driver space. Two trigger APIs are added, ledtrig_flash_ctrl() and ledtrig_torch_ctrl(). Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com> Signed-off-by: Bryan Wu <cooloney@gmail.com>
* | leds: tca6507: Use of_match_ptr() macroSachin Kamat2013-04-011-2/+2
| | | | | | | | | | | | | | | | This eliminates having an #ifdef returning NULL for the case when OF is disabled. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Bryan Wu <cooloney@gmail.com>
* | leds: wm8350: Complain if we fail to reenable DCDCMark Brown2013-04-011-1/+4
| | | | | | | | | | | | | | | | Provide some trace, though the hardware is most likely non-functional if this happens. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Bryan Wu <cooloney@gmail.com>
* | leds: renesas: set gpio_request_one() flags param correctlyJingoo Han2013-04-011-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The gpio_request_one() flags parameter was set to: GPIOF_DIR_OUT | !!brightness GPIOF_DIR_OUT and GPIOF_DIR_IN are defined as below: GPIOF_DIR_OUT (0 << 0) GPIOF_DIR_IN (1 << 0) So, when '!!brightness' is 1, the gpio pin can be set as input, instead of output. To prevent this problem, GPIOF_OUT_INIT flags should be used when using gpio_request_one(). Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Bryan Wu <cooloney@gmail.com>
* | leds: leds-ns2: set devm_gpio_request_one() flags param correctlyJingoo Han2013-04-011-2/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The devm_gpio_request_one() flags parameter was set to: GPIOF_DIR_OUT | gpio_get_value(template->cmd) GPIOF_DIR_OUT and GPIOF_DIR_IN are defined as below: GPIOF_DIR_OUT (0 << 0) GPIOF_DIR_IN (1 << 0) So, when 'gpio_get_value(template->cmd)' is 1, the gpio pin can be set as input, instead of output. To prevent this problem, GPIOF_OUT_INIT flags should be used when using devm_gpio_request_one(). Same goes for 'gpio_get_value(template->slow)' case. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Bryan Wu <cooloney@gmail.com>
* | leds: leds-lt3593: set devm_gpio_request_one() flags param correctlyJingoo Han2013-04-011-2/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The devm_gpio_request_one() flags parameter was set to: GPIOF_DIR_OUT | state GPIOF_DIR_OUT and GPIOF_DIR_IN are defined as below: GPIOF_DIR_OUT (0 << 0) GPIOF_DIR_IN (1 << 0) So, when 'state' is 1, the gpio pin can be set as input, instead of output. To prevent this problem, GPIOF_OUT_INIT flags should be used when using devm_gpio_request_one(). Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Bryan Wu <cooloney@gmail.com>
* | leds: leds-bd2802: remove erroneous __exit annotationJingoo Han2013-04-011-2/+2
| | | | | | | | | | | | | | | | CONFIG_HOTPLUG was removed, so __devexit or __exit of remove() should not be used. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Bryan Wu <cooloney@gmail.com>
* | leds: atmel-pwm: remove erroneous __exit annotationJingoo Han2013-04-011-2/+2
| | | | | | | | | | | | | | | | CONFIG_HOTPLUG was removed, so __devexit or __exit of remove() should not be used. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Bryan Wu <cooloney@gmail.com>
* | leds: move LED trigger drivers into new subdirectoryKim, Milo2013-04-0113-117/+121
| | | | | | | | | | | | | | | | | | | | | | | | | | For better driver management, new subdirectory, 'trigger' is created. All LED trigger drivers are moved into this directory. Internal header, 'leds.h' is included in each LED trigger drivers. Fix the location of header file, "leds.h" -> "../leds.h" in driver files. One exception is here, 'ledtrig-timer.c'. There is no need to include 'leds.h'. so '#include "leds.h"' line was removed. Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com> Signed-off-by: Bryan Wu <cooloney@gmail.com>
* | leds: add new LP5562 LED driverKim, Milo2013-04-014-3/+607
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | LP5562 can drive up to 4 channels, RGB and White. LEDs can be controlled directly via the led class control interface. LP55xx common driver LP5562 is one of LP55xx family device, so LP55xx common code are used. On the other hand, chip specific configuration is defined in the structure 'lp55xx_device_config' LED pattern data LP5562 has also internal program memory which is used for running various LED patterns. LP5562 driver supports the firmware interface and the predefined pattern data as well. LP5562 device attributes: 'led_pattern' and 'engine_mux' A 'led_pattern' is an index code which runs the predefined pattern data. And 'engine_mux' is updated with the firmware interface is activated. Detailed description has been updated in the documentation files, 'leds-lp55xx.txt' and 'leds-lp5562.txt'. Changes on the header file LP5562 configurable definitions are added. Pattern RGB data is fixed as constant value. (No side effect on other devices, LP5521 or LP5523.) (cooloney@gmail.com: remove redundant mutex_unlock(). Reported by Dan Carpenter <dan.carpenter@oracle.com>) Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com> Signed-off-by: Bryan Wu <cooloney@gmail.com>
* Merge branch 'for-next' of ↵Linus Torvalds2013-02-2618-1569/+1439
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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 ...
| * leds: leds-sunfire: use dev_err()/pr_err() instead of printk()Jingoo Han2013-02-071-10/+9
| | | | | | | | | | | | | | | | | | | | Fixed the checkpatch errors and warnings as below: ERROR: spaces required around that '=' (ctx:VxW) WARNING: Prefer netdev_err(netdev, ... then dev_err(dev, ... then pr_err(... to printk(KERN_ERR ... Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Bryan Wu <cooloney@gmail.com>
| * leds: 88pm860x: Add missing of_node_put()Axel Lin2013-02-071-1/+4
| | | | | | | | | | | | | | | | | | | | | | | | of_find_node_by_name() returns a node pointer with refcount incremented, use of_node_put() on it when done. of_find_node_by_name() will call of_node_put() against from parameter, thus we also need to call of_node_get(from) before calling of_find_node_by_name(). Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Bryan Wu <cooloney@gmail.com>
| * leds: tca6507: Use of_get_child_count()Axel Lin2013-02-071-7/+3
| | | | | | | | | | Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Bryan Wu <cooloney@gmail.com>
| * leds: leds-pwm: make it depend on PWM and not HAVE_PWMPeter Ujfalusi2013-02-071-1/+1
| | | | | | | | | | | | | | | | The correct dependency for the leds-pwm is PWM and not HAVE_PWM since PWM drivers now have their own subsystem. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Bryan Wu <cooloney@gmail.com>
| * leds-lp55xx: fix problem on removing LED attributesMilo(Woogyom) Kim2013-02-071-3/+0
| | | | | | | | | | | | | | | | | | | | | | LP55XX common device attributes, 'led_current' and 'max_current' are created while loading the driver. Those are LED device attributes which are removed automatically on releasing led class devices - led_classdev_unregister(). Therefore, this duplicate code should be removed. Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com> Signed-off-by: Bryan Wu <cooloney@gmail.com>
| * leds-lp5521/5523: add author and copyright descriptionMilo(Woogyom) Kim2013-02-072-0/+6
| | | | | | | | | | | | | | | | Now LP5521 and LP5523 drivers are based on new lp55xx structure. So the author and copyrights are updated. Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com> Signed-off-by: Bryan Wu <cooloney@gmail.com>
| * leds-lp55xx: clean up headersMilo(Woogyom) Kim2013-02-072-26/+12
| | | | | | | | | | | | | | Remove unused headers and sort them alphabetically Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com> Signed-off-by: Bryan Wu <cooloney@gmail.com>
| * leds-lp55xx: clean up definitionsMilo(Woogyom) Kim2013-02-072-70/+12
| | | | | | | | | | | | | | Remove unused definitions and change hex values to capital letters Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com> Signed-off-by: Bryan Wu <cooloney@gmail.com>
| * leds-lp55xx: clean up unused data and functionsMilo(Woogyom) Kim2013-02-072-51/+0
| | | | | | | | | | | | | | | | Old data structures and I2C function are not used any more. Each driver uses the lp55xx common data and functions. Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com> Signed-off-by: Bryan Wu <cooloney@gmail.com>
| * leds-lp55xx: clean up _remove()Milo(Woogyom) Kim2013-02-072-94/+4
| | | | | | | | | | | | | | | | | | | | | | | | Replace lp5521/5523_unregister_sysfs() with lp55xx_unregister_sysfs(). On unloading the driver, running engines should be stopped. Use explicit driver function, lp5521/5523_stop_engine(). Unused functions are removed. Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com> Signed-off-by: Bryan Wu <cooloney@gmail.com>
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-27 14:59:41 +0100