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

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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
This commit is contained in:
ChiYuan Huang 2023-03-10 14:55:55 +08:00 committed by Lee Jones
parent d4856dccda
commit 5c38376ef5
3 changed files with 1024 additions and 0 deletions
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13
drivers/leds/rgb/Kconfig
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@ -26,4 +26,17 @@ config LEDS_QCOM_LPG
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_RANGE
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

1
drivers/leds/rgb/Makefile
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@ -2,3 +2,4 @@
obj-$(CONFIG_LEDS_PWM_MULTICOLOR) += leds-pwm-multicolor.o
obj-$(CONFIG_LEDS_QCOM_LPG) += leds-qcom-lpg.o
obj-$(CONFIG_LEDS_MT6370_RGB) += leds-mt6370-rgb.o

1010
drivers/leds/rgb/leds-mt6370-rgb.c Normal file
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