37d0849ed3
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>
1.9 KiB
SPDX-License-Identifier: GPL-2.0
if LEDS_CLASS_MULTICOLOR
config LEDS_GROUP_MULTICOLOR tristate "LEDs group multi-color support" depends on OF || COMPILE_TEST help This option enables support for monochrome LEDs that are grouped into multicolor LEDs which is useful in the case where LEDs of different colors are physically grouped in a single multi-color LED and driven by a controller that doesn't have multi-color support.
To compile this driver as a module, choose M here: the module
will be called leds-group-multicolor.
config LEDS_PWM_MULTICOLOR tristate "PWM driven multi-color LED Support" depends on PWM help This option enables support for PWM driven monochrome LEDs that are grouped into multicolor LEDs.
To compile this driver as a module, choose M here: the module
will be called leds-pwm-multicolor.
config LEDS_QCOM_LPG tristate "LED support for Qualcomm LPG" depends on OF depends on PWM depends on SPMI help This option enables support for the Light Pulse Generator found in a wide variety of Qualcomm PMICs. The LPG consists of a number of PWM channels and typically a shared pattern lookup table and a current sink, intended to drive RGB LEDs. Each channel can either be used as a LED, grouped to represent a RGB LED or exposed as PWM channels.
If compiled as a module, the module will be named leds-qcom-lpg.
config LEDS_MT6370_RGB tristate "LED Support for MediaTek MT6370 PMIC" depends on MFD_MT6370 select LINEAR_RANGES help Say Y here to enable support for MT6370_RGB LED device. In MT6370, there are four channel current-sink LED drivers that support hardware pattern for constant current, PWM, and breath mode. Isink4 channel can also be used as a CHG_VIN power good indicator.
This driver can also be built as a module. If so, the module
will be called "leds-mt6370-rgb".
endif # LEDS_CLASS_MULTICOLOR