backlight: pcf50633-backlight: Remove unused driver

The pcf50633 was used as part of the OpenMoko devices but
the support for its main chip was recently removed in:
commit 61b7f8920b17 ("ARM: s3c: r

backlight: pcf50633-backlight: Remove unused driver

The pcf50633 was used as part of the OpenMoko devices but
the support for its main chip was recently removed in:
commit 61b7f8920b17 ("ARM: s3c: remove all s3c24xx support")

See https://lore.kernel.org/all/Z8z236h4B5A6Ki3D@gallifrey/

Remove it.

Signed-off-by: "Dr. David Alan Gilbert" <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Lee Jones <[email protected]>

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backlight: tdo24m: Eliminate redundant whitespace

The description for CONFIG_LCD_TDO24M has redundant whitespace.
Trim it to keep the code tidy.

Signed-off-by: WangYuli <[email protected]>
Lin

backlight: tdo24m: Eliminate redundant whitespace

The description for CONFIG_LCD_TDO24M has redundant whitespace.
Trim it to keep the code tidy.

Signed-off-by: WangYuli <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Lee Jones <[email protected]>

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backlight: apple_dwi_bl: Add Apple DWI backlight driver

Add driver for backlight controllers attached via Apple DWI 2-wire
interface, which is found on some Apple iPhones, iPads and iPod touches
wit

backlight: apple_dwi_bl: Add Apple DWI backlight driver

Add driver for backlight controllers attached via Apple DWI 2-wire
interface, which is found on some Apple iPhones, iPads and iPod touches
with a LCD display.

Although there is an existing apple_bl driver, it is for backlight
controllers on Intel Macs attached via PCI, which is completely different
from the Samsung-derived DWI block.

Reviewed-by: "Daniel Thompson (RISCstar)" <[email protected]>
Signed-off-by: Nick Chan <[email protected]>
Reviewed-by: Neal Gompa <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Lee Jones <[email protected]>

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backlight: Add new lm3509 backlight driver

This is a general driver for LM3509 backlight chip of TI.
LM3509 is High Efficiency Boost for White LEDs and/or OLED Displays with
Dual Current Sinks. This

backlight: Add new lm3509 backlight driver

This is a general driver for LM3509 backlight chip of TI.
LM3509 is High Efficiency Boost for White LEDs and/or OLED Displays with
Dual Current Sinks. This driver supports OLED/White LED select, brightness
control and sub/main control.
The datasheet can be found at http://www.ti.com/product/lm3509.

Signed-off-by: Patrick Gansterer <[email protected]>
Reviewed-by: Daniel Thompson <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Lee Jones <[email protected]>

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backlight: Add Kinetic KTD2801 Backlight support

KTD2801 is a LED backlight driver IC found in samsung,coreprimevelte.
The brightness can be set using PWM or the ExpressWire protocol. Add
support fo

backlight: Add Kinetic KTD2801 Backlight support

KTD2801 is a LED backlight driver IC found in samsung,coreprimevelte.
The brightness can be set using PWM or the ExpressWire protocol. Add
support for the KTD2801.

Reviewed-by: Linus Walleij <[email protected]>
Reviewed-by: Daniel Thompson <[email protected]>
Signed-off-by: Duje Mihanović <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Lee Jones <[email protected]>

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fbdev: Remove support for Carillo Ranch driver

As far as anybody can tell, this product never shipped. If it did,
it shipped in 2007 and nobody has access to one any more. Remove the
fbdev driver

fbdev: Remove support for Carillo Ranch driver

As far as anybody can tell, this product never shipped. If it did,
it shipped in 2007 and nobody has access to one any more. Remove the
fbdev driver and the backlight driver.

Signed-off-by: Matthew Wilcox (Oracle) <[email protected]>
Signed-off-by: Helge Deller <[email protected]>

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backlight: mp3309c: Add support for MPS MP3309C

The Monolithic Power (MPS) MP3309C is a WLED step-up converter, featuring a
programmable switching frequency to optimize efficiency.
The brightness ca

backlight: mp3309c: Add support for MPS MP3309C

The Monolithic Power (MPS) MP3309C is a WLED step-up converter, featuring a
programmable switching frequency to optimize efficiency.
The brightness can be controlled either by I2C commands (called "analog"
mode) or by a PWM input signal (PWM mode).
This driver supports both modes.

For DT configuration details, please refer to:
- Documentation/devicetree/bindings/leds/backlight/mps,mp3309c.yaml

The datasheet is available at:
- https://www.monolithicpower.com/en/mp3309c.html

Signed-off-by: Flavio Suligoi <[email protected]>
Reviewed-by: Daniel Thompson <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Lee Jones <[email protected]>

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backlight: apple_bl: Use acpi_video_get_backlight_type()

On some MacBooks both the apple_bl and the apple-gmux backlight drivers
may be able to export a /sys/class/backlight device.

To avoid having

backlight: apple_bl: Use acpi_video_get_backlight_type()

On some MacBooks both the apple_bl and the apple-gmux backlight drivers
may be able to export a /sys/class/backlight device.

To avoid having 2 backlight devices for one LCD panel until now
the apple-gmux driver has been calling apple_bl_unregister() to move
the apple_bl backlight device out of the way when it loads.

Similar problems exist on other x86 laptops and all backlight drivers
which may be used on x86 laptops have moved to using
acpi_video_get_backlight_type() to determine whether they should load
or not.

Switch apple_bl to this model too, so that it is consistent with all
the other x86 backlight drivers.

Besides code-simplification and consistency this has 2 other benefits:

1) It removes a race during boot where userspace will briefly see
an apple_bl backlight and then have it disappear again, leading to e.g.:
https://bbs.archlinux.org/viewtopic.php?id=269920

2) This allows user to switch between the drivers by passing
acpi_backlight=apple_gmux or acpi_backlight=vendor on the kernel
commandline.

Signed-off-by: Hans de Goede <[email protected]>
Reviewed-by: Daniel Thompson <[email protected]>
Acked-by: Lee Jones <[email protected]>
Link: https://lore.kernel.org/r/[email protected]

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backlight: ktz8866: Add support for Kinetic KTZ8866 backlight

Add support for Kinetic KTZ8866 backlight, which is used in
Xiaomi tablet, Mi Pad 5 series. This driver lightly based on
downstream impl

backlight: ktz8866: Add support for Kinetic KTZ8866 backlight

Add support for Kinetic KTZ8866 backlight, which is used in
Xiaomi tablet, Mi Pad 5 series. This driver lightly based on
downstream implementation [1].
[1] https://github.com/MiCode/Xiaomi_Kernel_OpenSource/blob/elish-r-oss/drivers/video/backlight/ktz8866.c

Signed-off-by: Jianhua Lu <[email protected]>
Reviewed-by: Daniel Thompson <[email protected]>
Signed-off-by: Lee Jones <[email protected]>
Link: https://lore.kernel.org/r/[email protected]

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backlight: Remove pxa tosa support

The PXA tosa machine was removed, so this backlight driver is no
longer needed.

Signed-off-by: Arnd Bergmann <[email protected]>
Reviewed-by: Daniel Thompson <daniel.

backlight: Remove pxa tosa support

The PXA tosa machine was removed, so this backlight driver is no
longer needed.

Signed-off-by: Arnd Bergmann <[email protected]>
Reviewed-by: Daniel Thompson <[email protected]>
Signed-off-by: Lee Jones <[email protected]>
Link: https://lore.kernel.org/r/[email protected]

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video: backlight: mt6370: Add MediaTek MT6370 support

MediaTek MT6370 is a SubPMIC consisting of a single cell battery charger
with ADC monitoring, RGB LEDs, dual channel flashlight, WLED backlight

video: backlight: mt6370: Add MediaTek MT6370 support

MediaTek MT6370 is a SubPMIC consisting of a single cell battery charger
with ADC monitoring, RGB LEDs, dual channel flashlight, WLED backlight
driver, display bias voltage supply, one general purpose LDO, and the
USB Type-C & PD controller complies with the latest USB Type-C and PD
standards.

Add support for the MediaTek MT6370 backlight driver.
It controls 4 channels of 8 series WLEDs in
2048 (only for MT6370/MT6371) / 16384 (only for MT6372)
current steps (30 mA) in exponential or linear mapping curves.

Reviewed-by: Daniel Thompson <[email protected]>
Signed-off-by: ChiaEn Wu <[email protected]>
Signed-off-by: Lee Jones <[email protected]>
Link: https://lore.kernel.org/r/[email protected]

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fbdev: omap: avoid using mach/*.h files

All the headers we actually need are now in include/linux/soc,
so use those versions instead and allow compile-testing on
other architectures.

Acked-by: Bart

fbdev: omap: avoid using mach/*.h files

All the headers we actually need are now in include/linux/soc,
so use those versions instead and allow compile-testing on
other architectures.

Acked-by: Bartlomiej Zolnierkiewicz <[email protected]>
Acked-by: Tony Lindgren <[email protected]>
Signed-off-by: Arnd Bergmann <[email protected]>

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backlight: Kconfig whitespace and indentation cleanups

Remove leading whitespaces, replace multi spaces with tabs, and fix help
text indentation.

Signed-off-by: Juerg Haefliger <[email protected]

backlight: Kconfig whitespace and indentation cleanups

Remove leading whitespaces, replace multi spaces with tabs, and fix help
text indentation.

Signed-off-by: Juerg Haefliger <[email protected]>
Reviewed-by: Daniel Thompson <[email protected]>
Signed-off-by: Lee Jones <[email protected]>

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backlight: rt4831: Adds support for Richtek RT4831 backlight

Adds support for Richtek RT4831 backlight.

Signed-off-by: ChiYuan Huang <[email protected]>
Reviewed-by: Daniel Thompson <daniel.thom

backlight: rt4831: Adds support for Richtek RT4831 backlight

Adds support for Richtek RT4831 backlight.

Signed-off-by: ChiYuan Huang <[email protected]>
Reviewed-by: Daniel Thompson <[email protected]>
Signed-off-by: Lee Jones <[email protected]>

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backlight: Add Kinetic KTD253 backlight driver

The Kinetic KTD253 backlight driver is controlled with a
single GPIO line, but still supports a range of brightness
settings by sending fast pulses on

backlight: Add Kinetic KTD253 backlight driver

The Kinetic KTD253 backlight driver is controlled with a
single GPIO line, but still supports a range of brightness
settings by sending fast pulses on the line.

This is based off the source code release for the Samsung
GT-S7710 mobile phone.

Cc: Sam Ravnborg <[email protected]>
Reviewed-by: Daniel Thompson <[email protected]>
Signed-off-by: Linus Walleij <[email protected]>
Signed-off-by: Lee Jones <[email protected]>

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backlight: generic_bl: Remove this driver as it is unused

The backlight_bl driver required initialization using
struct generic_bl_info. As there are no more references
to this struct there is no use

backlight: generic_bl: Remove this driver as it is unused

The backlight_bl driver required initialization using
struct generic_bl_info. As there are no more references
to this struct there is no users left.
So it is safe to delete the driver.

Signed-off-by: Sam Ravnborg <[email protected]>
Reviewed-by: Daniel Thompson <[email protected]>
Reviewed-by: Emil Velikov <[email protected]>
Signed-off-by: Lee Jones <[email protected]>

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backlight: Delete the OT200 backlight driver

This driver has no in-kernel users. The device can only be populated
by board files since it does not support device tree nor ACPI,
and nothing in the ke

backlight: Delete the OT200 backlight driver

This driver has no in-kernel users. The device can only be populated
by board files since it does not support device tree nor ACPI,
and nothing in the kernel creates a device named "ot200-backlight".

This driver has been in the kernel since 2012. If it is used by
out-of-tree code that code should have been upstreamed by now,
it's been 8 years.

It uses the idiomatic forked GPIO of the CS5535 which combines
pin control and GPIO into its private custom interface, which
causes me a headache because that is not how we do things these
days: we creates separate pin control and GPIO drivers.

Delete this unused driver.

Cc: Christian Gmeiner <[email protected]>
Signed-off-by: Linus Walleij <[email protected]>
Reviewed-by: Daniel Thompson <[email protected]>
Signed-off-by: Lee Jones <[email protected]>

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backlight: add led-backlight driver

This patch adds a led-backlight driver (led_bl), which is similar to
pwm_bl except the driver uses a LED class driver to adjust the
brightness in the HW. Multiple

backlight: add led-backlight driver

This patch adds a led-backlight driver (led_bl), which is similar to
pwm_bl except the driver uses a LED class driver to adjust the
brightness in the HW. Multiple LEDs can be used for a single backlight.

Signed-off-by: Tomi Valkeinen <[email protected]>
Signed-off-by: Jean-Jacques Hiblot <[email protected]>
Acked-by: Pavel Machek <[email protected]>
Reviewed-by: Daniel Thompson <[email protected]>
Acked-by: Lee Jones <[email protected]>
Acked-by: Tony Lindgren <[email protected]>
Tested-by: Tony Lindgren <[email protected]>
Tested-by: Guido Günther <[email protected]>
Signed-off-by: Pavel Machek <[email protected]>
Signed-off-by: Tony Lindgren <[email protected]>

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video: Fix Kconfig indentation

Adjust indentation from spaces to tab (+optional two spaces) as in
coding style with command like:
$ sed -e 's/^ /\t/' -i */Kconfig

Signed-off-by: Krzysztof K

video: Fix Kconfig indentation

Adjust indentation from spaces to tab (+optional two spaces) as in
coding style with command like:
$ sed -e 's/^ /\t/' -i */Kconfig

Signed-off-by: Krzysztof Kozlowski <[email protected]>
Cc: Jiri Kosina <[email protected]>
Cc: Lee Jones <[email protected]>
Cc: Daniel Thompson <[email protected]>
Cc: Jingoo Han <[email protected]>
Signed-off-by: Bartlomiej Zolnierkiewicz <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]

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backlight: qcom-wled: Rename pm8941-wled.c to qcom-wled.c

pm8941-wled.c driver is supporting the WLED peripheral
on pm8941. Rename it to qcom-wled.c so that it can support
WLED on multiple PMICs.

S

backlight: qcom-wled: Rename pm8941-wled.c to qcom-wled.c

pm8941-wled.c driver is supporting the WLED peripheral
on pm8941. Rename it to qcom-wled.c so that it can support
WLED on multiple PMICs.

Signed-off-by: Kiran Gunda <[email protected]>
Reviewed-by: Bjorn Andersson <[email protected]>
Acked-by: Rob Herring <[email protected]>
Acked-by: Daniel Thompson <[email protected]>
Acked-by: Pavel Machek <[email protected]>
Signed-off-by: Lee Jones <[email protected]>

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backlight: Kconfig: jornada720: Use CONFIG_PREEMPTION

CONFIG_PREEMPTION is selected by CONFIG_PREEMPT and by CONFIG_PREEMPT_RT.
Both PREEMPT and PREEMPT_RT require the same functionality which today

backlight: Kconfig: jornada720: Use CONFIG_PREEMPTION

CONFIG_PREEMPTION is selected by CONFIG_PREEMPT and by CONFIG_PREEMPT_RT.
Both PREEMPT and PREEMPT_RT require the same functionality which today
depends on CONFIG_PREEMPT.

Switch the Kconfig dependency to CONFIG_PREEMPTION.

Signed-off-by: Thomas Gleixner <[email protected]>
[Sebastian: +LCD_HP700]
Signed-off-by: Sebastian Andrzej Siewior <[email protected]>
Reviewed-by: Daniel Thompson <[email protected]>
Signed-off-by: Lee Jones <[email protected]>

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video: backlight: Drop default m for {LCD,BACKLIGHT_CLASS_DEVICE}

When running "make oldconfig" on a .config where
CONFIG_BACKLIGHT_LCD_SUPPORT is not set, two new config options
("Lowlevel LCD cont

video: backlight: Drop default m for {LCD,BACKLIGHT_CLASS_DEVICE}

When running "make oldconfig" on a .config where
CONFIG_BACKLIGHT_LCD_SUPPORT is not set, two new config options
("Lowlevel LCD controls" and "Lowlevel Backlight controls") appear, both
defaulting to "m".

Drop the "default m", as options should default to disabled, and because
several driver config options already select LCD_CLASS_DEVICE or
BACKLIGHT_CLASS_DEVICE when needed.

Fixes: 8c5dc8d9f19c7992 ("video: backlight: Remove useless BACKLIGHT_LCD_SUPPORT kernel symbol")
Signed-off-by: Geert Uytterhoeven <[email protected]>
Reviewed-by: Daniel Thompson <[email protected]>
Signed-off-by: Lee Jones <[email protected]>

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treewide: Add SPDX license identifier - Makefile/Kconfig

Add SPDX license identifiers to all Make/Kconfig files which:

- Have no license information of any form

These files fall under the project

treewide: Add SPDX license identifier - Makefile/Kconfig

Add SPDX license identifiers to all Make/Kconfig files which:

- Have no license information of any form

These files fall under the project license, GPL v2 only. The resulting SPDX
license identifier is:

GPL-2.0-only

Signed-off-by: Thomas Gleixner <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>

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video: lcd: Remove useless BACKLIGHT_CLASS_DEVICE dependencies

This patch removes dependencies on BACKLIGHT_CLASS_DEVICE for items
that are already placed under 'if BACKLIGHT_CLASS_DEVICE'.

Signed-

video: lcd: Remove useless BACKLIGHT_CLASS_DEVICE dependencies

This patch removes dependencies on BACKLIGHT_CLASS_DEVICE for items
that are already placed under 'if BACKLIGHT_CLASS_DEVICE'.

Signed-off-by: Alexander Shiyan <[email protected]>
Acked-by: Bartlomiej Zolnierkiewicz <[email protected]>
Acked-by: Daniel Thompson <[email protected]>
Signed-off-by: Lee Jones <[email protected]>

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video: backlight: Remove useless BACKLIGHT_LCD_SUPPORT kernel symbol

We have two *_CLASS_DEVICE kernel config options (LCD_CLASS_DEVICE
and BACKLIGHT_LCD_DEVICE) that do the same job.
The patch remo

video: backlight: Remove useless BACKLIGHT_LCD_SUPPORT kernel symbol

We have two *_CLASS_DEVICE kernel config options (LCD_CLASS_DEVICE
and BACKLIGHT_LCD_DEVICE) that do the same job.
The patch removes useless BACKLIGHT_LCD_SUPPORT option
and converts LCD_CLASS_DEVICE into a menu.

Signed-off-by: Alexander Shiyan <[email protected]>
Acked-by: Bartlomiej Zolnierkiewicz <[email protected]>
Acked-by: Daniel Thompson <[email protected]>
Signed-off-by: Lee Jones <[email protected]>

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