kernel/drivers/leds/flash/Kconfig, branch linux-rolling-stable

leds: tps6131x: Add V4L2_FLASH_LED_CLASS dependency

2025-08-15T14:39:03Z

[ Upstream commit c3c38e80016548685e439b23999b4f0bd0ad7e05 ] This driver can optionally use the v4l2_flash infrastructure, but fails to link built=in if that is in a loadable module: ld.lld-21: error: undefined symbol: v4l2_flash_release >>> referenced by leds-tps6131x.c:792 (drivers/leds/flash/leds-tps6131x.c:792) Add the usual Kconfig dependency for it, still allowing it to be built when CONFIG_V4L2_FLASH_LED_CLASS is disabled. Fixes: b338a2ae9b31 ("leds: tps6131x: Add support for Texas Instruments TPS6131X flash LED driver") Signed-off-by: Arnd Bergmann Reviewed-by: Randy Dunlap Tested-by: Randy Dunlap Link: https://lore.kernel.org/r/20250620114440.4080938-1-arnd@kernel.org Signed-off-by: Lee Jones Signed-off-by: Sasha Levin

leds: tps6131x: Add support for Texas Instruments TPS6131X flash LED driver

2025-05-22T08:24:51Z

The TPS61310/TPS61311 is a flash LED driver with I2C interface. Its power stage is capable of supplying a maximum total current of roughly 1500mA. The TPS6131x provides three constant-current sinks, capable of sinking up to 2 x 400mA (LED1 and LED3) and 800mA (LED2) in flash mode. In torch mode each sink (LED1, LED2, LED3) supports currents up to 175mA. Signed-off-by: Matthias Fend Link: https://lore.kernel.org/r/20250514-leds-tps6131x-v5-2-a4fb9e7f2c47@emfend.at Signed-off-by: Lee Jones

leds: sy7802: Add support for Silergy SY7802 flash LED controller

2024-06-26T16:04:39Z

The SY7802 is a current-regulated charge pump which can regulate two current levels for Flash and Torch modes. It is a high-current synchronous boost converter with 2-channel high side current sources. Each channel is able to deliver 900mA current. Acked-by: Lee Jones Signed-off-by: André Apitzsch Link: https://lore.kernel.org/r/20240624-sy7802-v5-2-7abc9d96bfa6@apitzsch.eu Signed-off-by: Lee Jones

leds: Make flash and multicolor dependencies unconditional

2024-03-07T08:48:03Z

Along the same lines as making devm_led_classdev_register() declared extern unconditional, do the same thing for the two sub-classes that have similar stubs. The users of these interfaces go to great lengths to allow building with both the generic leds API and the extended version, but realistically there is not much use in this, so just simplify it to always rely on it and remove the confusing fallback logic. Signed-off-by: Arnd Bergmann Acked-by: Greg Kroah-Hartman Link: https://lore.kernel.org/r/20240109090715.982332-2-arnd@kernel.org Signed-off-by: Lee Jones

leds: ktd2692: Add GPIOLIB dependency

2024-03-07T08:45:24Z

The expresswire module requires gpiolib, so anything selecting it also needs this dependency: WARNING: unmet direct dependencies detected for LEDS_EXPRESSWIRE Depends on [n]: NEW_LEDS [=y] && GPIOLIB [=n] Selected by [y]: - LEDS_KTD2692 [=y] && NEW_LEDS [=y] && LEDS_CLASS_FLASH [=y] && OF [=y] Fixes: e59a15af7aa6 ("leds: ktd2692: Convert to use ExpressWire library") Signed-off-by: Arnd Bergmann Reviewed-by: Daniel Thompson Link: https://lore.kernel.org/r/20240213165602.2230970-1-arnd@kernel.org Signed-off-by: Lee Jones

leds: ktd2692: Convert to use ExpressWire library

2024-03-07T08:45:08Z

The KTD2692 uses the ExpressWire protocol implemented in the newly introduced ExpressWire library. Convert the driver to use the library. Suggested-by: Daniel Thompson Reviewed-by: Linus Walleij Reviewed-by: Daniel Thompson Signed-off-by: Duje Mihanović Link: https://lore.kernel.org/r/20240125-ktd2801-v5-2-e22da232a825@skole.hr Signed-off-by: Lee Jones

leds: flash: leds-qcom-flash: Declare the driver as a module

2023-07-28T11:17:23Z

Explain in Kconfig that the driver can be compiled as a module. Signed-off-by: Fenglin Wu Link: https://lore.kernel.org/r/20230725-leds-qcom-flash-driver-tiny-fixes-v2-1-0f5cbce5fed0@quicinc.com Signed-off-by: Lee Jones

leds: flash: mt6370: Add MediaTek MT6370 flashlight support

2023-03-23T14:54:08Z

The MediaTek MT6370 is a highly-integrated smart power management IC, which includes a single cell Li-Ion/Li-Polymer switching battery charger, a USB Type-C & Power Delivery (PD) controller, dual Flash LED current sources, a RGB LED driver, a backlight WLED driver, a display bias driver and a general LDO for portable devices. Add support for the MT6370 Flash LED driver. Flash LED in MT6370 has 2 channels and support torch/strobe mode. Co-developed-by: Alice Chen Signed-off-by: Alice Chen Signed-off-by: ChiYuan Huang Signed-off-by: ChiaEn Wu Acked-by: Jacek Anaszewski Signed-off-by: Lee Jones Link: https://lore.kernel.org/r/52480420a160e5a4c71715fbbf105e684a16e7c2.1678430444.git.chiaen_wu@richtek.com

leds: flash: Add driver to support flash LED module in QCOM PMICs

2023-03-16T15:08:45Z

Add initial driver to support flash LED module found in Qualcomm Technologies, Inc. PMICs. The flash module can have 3 or 4 channels and each channel can be controlled indepedently and support full scale current up to 1.5 A. It also supports connecting two channels together to supply one LED component with full scale current up to 2 A. In that case, the current will be split on each channel symmetrically and the channels will be enabled and disabled at the same time. Signed-off-by: Fenglin Wu Tested-by: Luca Weiss # sm7225-fairphone-fp4 + pm6150l Signed-off-by: Lee Jones Link: https://lore.kernel.org/r/20230303095023.538917-2-quic_fenglinw@quicinc.com

leds: Add mt6360 driver

2022-01-12T18:42:42Z

Add MT6360 LED driver include 2-channel Flash LED with torch/strobe mode, 3-channel RGB LED support Register/Flash/Breath Mode, and 1-channel for moonlight LED. Signed-off-by: Gene Chen Acked-by: Jacek Anaszewski Signed-off-by: Pavel Machek