Commit 96a2e242 authored by Fenglin Wu's avatar Fenglin Wu Committed by Lee Jones
Browse files

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



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: default avatarFenglin Wu <quic_fenglinw@quicinc.com>
Tested-by: Luca Weiss <luca.weiss@fairphone.com> # sm7225-fairphone-fp4 + pm6150l
Signed-off-by: default avatarLee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/20230303095023.538917-2-quic_fenglinw@quicinc.com
parent 8f0adae1

drivers/leds/flash/Kconfig

+15 −0
Original line number Diff line number Diff line
@@ -61,6 +61,21 @@ config LEDS_MT6360 
	  Independent current sources supply for each flash LED support torch

	  and strobe mode.



config LEDS_QCOM_FLASH

	tristate "LED support for flash module inside Qualcomm Technologies, Inc. PMIC"

	depends on MFD_SPMI_PMIC || COMPILE_TEST

	depends on LEDS_CLASS && OF

	depends on V4L2_FLASH_LED_CLASS || !V4L2_FLASH_LED_CLASS

	select REGMAP

	help

	  This option enables support for the flash module found in Qualcomm

	  Technologies, Inc. PMICs. The flash module can have 3 or 4 flash LED

	  channels and each channel is programmable to support up to 1.5 A full

	  scale current. It also supports connecting two channels' output together

	  to supply one LED component to achieve current up to 2 A. In such case,

	  the total LED current will be split symmetrically on each channel and

	  they will be enabled/disabled at the same time.



config LEDS_RT4505

	tristate "LED support for RT4505 flashlight controller"

	depends on I2C && OF

drivers/leds/flash/Makefile

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Original line number Diff line number Diff line
@@ -6,6 +6,7 @@ obj-$(CONFIG_LEDS_AS3645A) += leds-as3645a.o 
obj-$(CONFIG_LEDS_KTD2692)	+= leds-ktd2692.o

obj-$(CONFIG_LEDS_LM3601X)	+= leds-lm3601x.o

obj-$(CONFIG_LEDS_MAX77693)	+= leds-max77693.o

obj-$(CONFIG_LEDS_QCOM_FLASH)	+= leds-qcom-flash.o

obj-$(CONFIG_LEDS_RT4505)	+= leds-rt4505.o

obj-$(CONFIG_LEDS_RT8515)	+= leds-rt8515.o

obj-$(CONFIG_LEDS_SGM3140)	+= leds-sgm3140.o

drivers/leds/flash/leds-qcom-flash.c

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