Linux kernel stable tree (mirror) https://git.radix-linux.su/kernel/linux.git/atom?h=v6.12.80 2024-05-31T14:12:13+00:00 2024-05-31T14:12:13+00:00 Patrick Gansterer paroga@paroga.com 2024-05-26T10:51:30+00:00 urn:sha1:b72755f5b577357cac661cbf9048cad704eb4ad8 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 <paroga@paroga.com> Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org> Link: https://lore.kernel.org/r/20240526105136.721529-3-paroga@paroga.com Signed-off-by: Lee Jones <lee@kernel.org> 2024-03-07T08:45:16+00:00 Duje Mihanović duje.mihanovic@skole.hr 2024-01-25T15:30:56+00:00 urn:sha1:a5554f1b5bc3be5d01f41b7550aa5b05b7c88c09 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 <linus.walleij@linaro.org> Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org> Signed-off-by: Duje Mihanović <duje.mihanovic@skole.hr> Link: https://lore.kernel.org/r/20240125-ktd2801-v5-4-e22da232a825@skole.hr Signed-off-by: Lee Jones <lee@kernel.org> 2024-01-19T00:53:35+00:00 Linus Torvalds torvalds@linux-foundation.org 2024-01-19T00:53:35+00:00 urn:sha1:21c91bb9367716f61f46a352aafdeda61cb91c73 Pull backlight updates from Lee Jones: "New Drivers: - Add support for Monolithic Power Systems MP3309C WLED Step-up Converter Fix-ups: - Use/convert to new/better APIs/helpers/MACROs instead of hand-rolling implementations - Device Tree Binding updates - Demote non-kerneldoc header comments - Improve error handling; return proper error values, simplify, avoid duplicates, etc - Convert over to the new (kinda) GPIOD API Bug Fixes: - Fix uninitialised local variable" * tag 'backlight-next-6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight: backlight: hx8357: Convert to agnostic GPIO API backlight: ili922x: Add an error code check in ili922x_write() backlight: ili922x: Drop kernel-doc for local macros backlight: mp3309c: Fix uninitialized local variable backlight: pwm_bl: Use dev_err_probe backlight: mp3309c: Add support for MPS MP3309C dt-bindings: backlight: mp3309c: Remove two required properties 2024-01-12T11:38:37+00:00 Matthew Wilcox (Oracle) willy@infradead.org 2023-12-08T22:47:02+00:00 urn:sha1:d9f25b59ed85ae45801cf45fe17eb269b0ef3038 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) <willy@infradead.org> Signed-off-by: Helge Deller <deller@gmx.de> 2023-11-23T14:54:32+00:00 Flavio Suligoi f.suligoi@asem.it 2023-11-16T10:53:19+00:00 urn:sha1:2e914516a58cf86bd0e42c7d3e25c81d44ec2ab8 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 <f.suligoi@asem.it> Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org> Link: https://lore.kernel.org/r/20231116105319.957600-3-f.suligoi@asem.it Signed-off-by: Lee Jones <lee@kernel.org> 2023-03-16T12:33:11+00:00 Hans de Goede hdegoede@redhat.com 2023-03-07T12:05:40+00:00 urn:sha1:3608a2cd818a8d97bd3d4dc32f6c0afaf09b15ec 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 <hdegoede@redhat.com> Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org> Acked-by: Lee Jones <lee@kernel.org> Link: https://lore.kernel.org/r/20230307120540.389920-1-hdegoede@redhat.com 2023-02-22T10:55:28+00:00 Jianhua Lu lujianhua000@gmail.com 2023-01-20T15:50:18+00:00 urn:sha1:f8449c8f73552b82e2a29dfdb99df54bd3a5aafc 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 <lujianhua000@gmail.com> Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org> Signed-off-by: Lee Jones <lee@kernel.org> Link: https://lore.kernel.org/r/20230120155018.15376-2-lujianhua000@gmail.com 2023-02-22T10:55:27+00:00 Arnd Bergmann arnd@arndb.de 2023-01-05T13:46:04+00:00 urn:sha1:744fc2dada5073b8d9822c8c838c8141037ec651 The PXA tosa machine was removed, so this backlight driver is no longer needed. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org> Signed-off-by: Lee Jones <lee@kernel.org> Link: https://lore.kernel.org/r/20230105134622.254560-10-arnd@kernel.org 2022-09-08T07:50:57+00:00 ChiaEn Wu chiaen_wu@richtek.com 2022-08-30T03:40:42+00:00 urn:sha1:e7647de058cba3c05b0d4753d84cbc042d02956a 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 <daniel.thompson@linaro.org> Signed-off-by: ChiaEn Wu <chiaen_wu@richtek.com> Signed-off-by: Lee Jones <lee@kernel.org> Link: https://lore.kernel.org/r/20220830034042.9354-11-peterwu.pub@gmail.com 2022-04-21T13:01:14+00:00 Arnd Bergmann arnd@arndb.de 2019-08-06T14:08:34+00:00 urn:sha1:804f7f19c2e2928aeb8eafef8379fe8b8d13f98b 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 <b.zolnierkie@samsung.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>