kernel.git/drivers/video/backlight/Kconfig, branch linux-3.6.y

Merge branch 'for-3.6' of git://gitorious.org/linux-pwm/linux-pwm

2012-07-30T16:22:37Z

Pull PWM subsystem from Thierry Reding: "The new PWM subsystem aims at collecting all implementations of the legacy PWM API and to eventually replace it completely. The subsystem has been in development for over half a year now and many drivers have already been converted. It has been in linux-next for a couple of weeks and there have been no major issues so I think it is ready for inclusion in your tree." Arnd Bergmann : "Very much Ack on the new subsystem. It uses the interface declarations as the previously separate pwm drivers, so nothing changes for now in the drivers using it, although it enables us to change those more easily in the future if we want to. This work is also one of the missing pieces that are required to eventually build ARM kernels for multiple platforms, which is currently prohibited (amongs other things) by the fact that you cannot have more than one driver exporting the pwm functions." Tested-and-acked-by: Alexandre Courbot Acked-by: Mark Brown Acked-by: Philip, Avinash # TI's AM33xx platforms Acked-By: Alexandre Pereira da Silva # LPC32XX Acked-by: Arnd Bergmann Acked-by: Sachin Kamat Fix up trivial conflicts with other cleanups and DT updates. * 'for-3.6' of git://gitorious.org/linux-pwm/linux-pwm: (36 commits) pwm: pwm-tiehrpwm: PWM driver support for EHRPWM pwm: pwm-tiecap: PWM driver support for ECAP APWM pwm: fix used-uninitialized warning in pwm_get() pwm: add lpc32xx PWM support pwm_backlight: pass correct brightness to callback pwm: Use pr_* functions in pwm-samsung.c file pwm: Convert pwm-samsung to use devm_* APIs pwm: Convert pwm-tegra to use devm_clk_get() pwm: pwm-mxs: Return proper error if pwmchip_remove() fails pwm: pwm-bfin: Return proper error if pwmchip_remove() fails pwm: pxa: Propagate pwmchip_remove() error pwm: Convert pwm-pxa to use devm_* APIs pwm: Convert pwm-vt8500 to use devm_* APIs pwm: Convert pwm-imx to use devm_* APIs pwm: Conflict with legacy PWM API pwm: pwm-mxs: add pinctrl support pwm: pwm-mxs: use devm_* managed functions pwm: pwm-mxs: use global reset function stmp_reset_block pwm: pwm-mxs: encode soc name in compatible string pwm: Take over maintainership of the PWM subsystem ...

pwm-backlight: Add rudimentary device tree support

2012-07-23T11:23:52Z

This commit adds very basic support for device tree probing. Currently, only a PWM and a list of distinct brightness levels can be specified. Enabling or disabling backlight power via GPIOs is not yet supported. Reviewed-by: Shawn Guo Reviewed-by: Mark Brown Signed-off-by: Thierry Reding

Merge tag 'fbdev-fixes-for-3.5-1' of git://github.com/schandinat/linux-2.6

2012-06-16T23:59:05Z

Pull fbdev fixes from Florian Tobias Schandinat: - two fixes for s3c-fb by Jingoo Han (including a fix for a potential division by zero) - a couple of randconfig fixes by Arnd Bergmann - a cleanup for bfin_adv7393fb by Emil Goode * tag 'fbdev-fixes-for-3.5-1' of git://github.com/schandinat/linux-2.6: video: s3c-fb: fix possible division by zero in s3c_fb_calc_pixclk video: s3c-fb: clear SHADOWCON register when clearing hardware window registers drivers/tosa: driver needs I2C and SPI to compile drivers/savagefb: use mdelay instead of udelay video/console: automatically select a font video/ili9320: do not mark exported functions __devexit drivers/video: use correct __devexit_p annotation video: bfin_adv7393fb: Convert to kstrtouint_from_user

drivers/tosa: driver needs I2C and SPI to compile

2012-06-09T12:51:12Z

This driver requires both SPI and I2C to build. Signed-off-by: Arnd Bergmann Signed-off-by: Mathieu Poirier Signed-off-by: Florian Tobias Schandinat

backlight: add LM3533 backlight driver

2012-05-29T23:22:29Z

Add sub-driver for the backlights on National Semiconductor / TI LM3533 lighting power chips. The chip provides 256 brightness levels and ambient-light-sensor and pwm input control. [akpm@linux-foundation.org: fix warning] [akpm@linux-foundation.org: fix the type of `mode'] Signed-off-by: Johan Hovold Cc: Richard Purdie Cc: Rob Landley Cc: Samuel Ortiz Cc: Jonathan Cameron Cc: Greg Kroah-Hartman Cc: Florian Tobias Schandinat Cc: Arnd Bergmann Cc: Mark Brown Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

backlight: add driver for DA9052/53 PMIC v1

2012-04-05T22:25:51Z

DA9052/53 PMIC has capability to supply power for upto 3 banks of 6 white serial LEDS. It can also control intensity of independent banks and to drive these banks boost converter will provide up to 24V and forward current of max 50mA. This patch allows to control intensity of the individual WLEDs bank through DA9052/53 PMIC. This patch is functionally tested on Samsung SMDKV6410. Signed-off-by: David Dajun Chen Signed-off-by: Ashish Jangam Cc: Richard Purdie Cc: Samuel Ortiz Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

backlight: fix ot200_bl build

2012-03-23T23:58:33Z

Fix build error when GPIO_CS5535 is not enabled: drivers/built-in.o: In function `ot200_backlight_probe': ot200_bl.c:(.text+0x205bf): undefined reference to `cs5535_gpio_set' ot200_bl.c:(.text+0x205d1): undefined reference to `cs5535_gpio_set' Signed-off-by: Randy Dunlap Cc: Christian Gmeiner Cc: Richard Purdie Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

backlight: add support for Pandora backlight

2012-03-23T23:58:33Z

Add support for pandora (openpandora.org) backlight. It might look like all this could be done using pwm_bl.c instead, but there is a need of special programming sequence when turning on the LED driver chip or else it will misbehave. Doing this using pwm_bl.c would require to use some register programming and pwm functions from platform code, and ARM maintainers are allergic to driver-like code in /arch/arm nowadays. The PMIC PWM driver is currently missing too, so pwm_bl.c can't be used anyway. Signed-off-by: Grazvydas Ignotas Cc: Richard Purdie Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

backlight: add driver for Bachmann's ot200

2012-03-23T23:58:33Z

Add backlight driver for Bachmann's ot200 visualisation device. The driver uses MFGPT 7 of CS5535 silicon to regulate the backlight. [akpm@linux-foundation.org: remove redundant test of `brightness'] Signed-off-by: Christian Gmeiner Cc: Lars-Peter Clausen Cc: Andres Salomon Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

backlight: new backlight driver for LP855x devices

2012-03-23T23:58:33Z

THis driver supports TI LP8550/LP8551/LP8552/LP8553/LP8556 backlight devices. The brightness can be controlled by the I2C or PWM input. The lp855x driver provides both modes. For the PWM control, pwm-specific functions can be defined in the platform data. And some information can be read via the sysfs(lp855x device attributes). For details, please refer to Documentation/backlight/lp855x-driver.txt. [axel.lin@gmail.com: add missing mutex_unlock in lp855x_read_byte() error path] [axel.lin@gmail.com: check platform data in lp855x_probe()] [axel.lin@gmail.com: small cleanups] [dan.carpenter@oracle.com: silence a compiler warning] [axel.lin@gmail.com: use id->driver_data to differentiate lp855x chips] [akpm@linux-foundation.org: simplify boolean return expression] Signed-off-by: Milo(Woogyom) Kim Signed-off-by: Axel Lin Signed-off-by: Dan Carpenter Cc: Richard Purdie Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds