leds: rgb: Add support for Samsung S2M series PMIC RGB LED device

Add support for the RGB LEDs found in certain Samsung S2M series PMICs.
The device has three LED channels, controlled as a single de

leds: rgb: Add support for Samsung S2M series PMIC RGB LED device

Add support for the RGB LEDs found in certain Samsung S2M series PMICs.
The device has three LED channels, controlled as a single device. These
LEDs are typically used as status indicators in mobile phones.

The driver includes initial support for the S2MU005 PMIC RGB LEDs.

Signed-off-by: Kaustabh Chakraborty <kauschluss@disroot.org>
Link: https://patch.msgid.link/20260516-s2mu005-pmic-v7-7-73f9702fb461@disroot.org
Signed-off-by: Lee Jones <lee@kernel.org>

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leds: Add support for TI LP5860 LED driver chip

Add support for the Texas Instruments LP5860 LED driver chip
via SPI interfaces.

The LP5860 is an LED matrix driver for up to 196 LEDs, which support

leds: Add support for TI LP5860 LED driver chip

Add support for the Texas Instruments LP5860 LED driver chip
via SPI interfaces.

The LP5860 is an LED matrix driver for up to 196 LEDs, which supports
short and open detection of the individual channel select lines.

It can be connected to SPI or I2C bus. For now add support for SPI only.

Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Link: https://patch.msgid.link/20260505-v6-14-topic-ti-lp5860-v10-1-ee29341a75e4@pengutronix.de
Signed-off-by: Lee Jones <lee@kernel.org>

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leds: Add basic support for TI/National Semiconductor LP5812 LED Driver

The LP5812 is a 4x3 matrix RGB LED driver with an autonomous animation
engine and time-cross-multiplexing (TCM) support for up

leds: Add basic support for TI/National Semiconductor LP5812 LED Driver

The LP5812 is a 4x3 matrix RGB LED driver with an autonomous animation
engine and time-cross-multiplexing (TCM) support for up to 12 LEDs or
4 RGB LEDs. Each LED can be configured through the related registers
to realize vivid and fancy lighting effects.

This patch adds minimal driver support for the LP5812, implementing
only the essential functionality: I2C communication with the device,
LED registration, brightness control in manual mode, and basic sysfs
interfaces for LED configuration and fault monitoring.

Signed-off-by: Nam Tran <trannamatk@gmail.com>
Link: https://patch.msgid.link/20260115161013.40706-2-trannamatk@gmail.com
Signed-off-by: Lee Jones <lee@kernel.org>

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leds: Add NCP5623 multi-led driver

NCP5623 is DC-DC multi-LEDs driver which has three PWMs that can be
programmed up to 32 steps giving 32768 colors hue.

NCP5623 driver supports gradual dimming upw

leds: Add NCP5623 multi-led driver

NCP5623 is DC-DC multi-LEDs driver which has three PWMs that can be
programmed up to 32 steps giving 32768 colors hue.

NCP5623 driver supports gradual dimming upward/downward with programmable
delays. Also, the driver supports driving a single LED or multi-LED
like RGB.

Signed-off-by: Abdel Alkuor <alkuor@gmail.com>
Link: https://lore.kernel.org/r/20240305042049.1533279-2-alkuor@gmail.com
Signed-off-by: Lee Jones <lee@kernel.org>

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leds: Add ktd202x driver

This commit adds support for Kinetic KTD2026/7 RGB/White LED driver.

Signed-off-by: André Apitzsch <git@apitzsch.eu>
Link: https://lore.kernel.org/r/20231002-ktd202x-v6-2-2

leds: Add ktd202x driver

This commit adds support for Kinetic KTD2026/7 RGB/White LED driver.

Signed-off-by: André Apitzsch <git@apitzsch.eu>
Link: https://lore.kernel.org/r/20231002-ktd202x-v6-2-26be8eefeb88@apitzsch.eu
Signed-off-by: Lee Jones <lee@kernel.org>

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leds: rgb: Add a multicolor LED driver to group monochromatic LEDs

Grouping multiple monochrome LEDs into a multicolor LED device has a few
benefits over handling the group in user-space:
- The stat

leds: rgb: Add a multicolor LED driver to group monochromatic LEDs

Grouping multiple monochrome LEDs into a multicolor LED device has a few
benefits over handling the group in user-space:
- The state of the LEDs relative to each other is consistent. In other
words, if 2 threads competes to set the LED to green and red, the
end-result cannot be black or yellow.
- The multicolor LED as a whole can be driven through the sysfs LED
interface.

Signed-off-by: Jean-Jacques Hiblot <jjhiblot@traphandler.com>
Reviewed-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/20230728153731.3742339-5-jjhiblot@traphandler.com
Signed-off-by: Lee Jones <lee@kernel.org>

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leds: rgb: mt6370: Add MediaTek MT6370 current sink type LED Indicator support

The MediaTek MT6370 is a highly-integrated smart power management IC,
which includes a single cell Li-Ion/Li-Polymer sw

leds: rgb: mt6370: Add MediaTek MT6370 current sink type LED Indicator support

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 MediaTek MT6370 Current Sink Type LED Indicator
driver. It can control four channels current-sink RGB LEDs with 3 modes:
constant current, PWM, and breath mode.

Co-developed-by: Alice Chen <alice_chen@richtek.com>
Signed-off-by: Alice Chen <alice_chen@richtek.com>
Signed-off-by: ChiYuan Huang <cy_huang@richtek.com>
Signed-off-by: ChiaEn Wu <chiaen_wu@richtek.com>
Acked-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/1df93a583c3f508a7158b83b95857e9bce235e1b.1678430444.git.chiaen_wu@richtek.com

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leds: Move pwm-multicolor driver into rgb directory

The drivers/leds/rgb subdirectory is relatively fresh, so we move this
new PWM multi-color driver into it.

Signed-off-by: Sven Schwermer <sven.sc

leds: Move pwm-multicolor driver into rgb directory

The drivers/leds/rgb subdirectory is relatively fresh, so we move this
new PWM multi-color driver into it.

Signed-off-by: Sven Schwermer <sven.schwermer@disruptive-technologies.com>
Signed-off-by: Pavel Machek <pavel@ucw.cz>

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leds: Add driver for Qualcomm LPG

The Light Pulse Generator (LPG) is a PWM-block found in a wide range of
PMICs from Qualcomm. These PMICs typically comes with 1-8 LPG instances,
with their output b

leds: Add driver for Qualcomm LPG

The Light Pulse Generator (LPG) is a PWM-block found in a wide range of
PMICs from Qualcomm. These PMICs typically comes with 1-8 LPG instances,
with their output being routed to various other components, such as
current sinks or GPIOs.

Each LPG instance can operate on fixed parameters or based on a shared
lookup-table, altering the duty cycle over time. This provides the means
for hardware assisted transitions of LED brightness.

A typical use case for the fixed parameter mode is to drive a PWM
backlight control signal, the driver therefor allows each LPG instance
to be exposed to the kernel either through the LED framework or the PWM
framework.

A typical use case for the LED configuration is to drive RGB LEDs in
smartphones etc, for which the driver supports multiple channels to be
ganged up to a MULTICOLOR LED. In this configuration the pattern
generators will be synchronized, to allow for multi-color patterns.

The idea of modelling this as a LED driver ontop of a PWM driver was
considered, but setting the properties related to patterns does not fit
in the PWM API. Similarly the idea of just duplicating the lower bits in
a PWM and LED driver separately was considered, but this would not allow
the PWM channels and LEDs to be configured on a per-board basis. The
driver implements the more complex LED interface, and provides a PWM
interface on the side of that, in the same driver.

Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Tested-by: Douglas Anderson <dianders@chromium.org>
Tested-by: Luca Weiss <luca@z3ntu.xyz>
Reviewed-by: Marijn Suijten <marijn.suijten@somainline.org>
Tested-by: Marijn Suijten <marijn.suijten@somainline.org>
[On the Sony Xperia Nile Discovery, SDM630]
Signed-off-by: Pavel Machek <pavel@ucw.cz>

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