Commit 36d586c0 authored by Neil Armstrong's avatar Neil Armstrong Committed by Greg Kroah-Hartman
Browse files

usb: typec: mux: add Qualcomm WCD939X USB SubSystem Altmode Mux driver 



Qualcomm WCD9390/WCD9395 is a standalone Hi-Fi audio codec IC with a
functionally separate USB SubSystem for Altmode/Analog Audio Switch
accessible over an I2C interface.

It provides switching USB-C USB2.0 lines between USB and Audio Headphones
speaker lines, and the USB-C SBU lines between DisplayPort AUX and Audio
Headphones Microphone/Ground.

The Audio Headphone and Microphone data path between the Codec and the
USB-C Mux subsystems are external to the IC, thus requiring DT
port-endpoint graph description to handle USB-C altmode & orientation
switching for Audio Accessory Mode.

Signed-off-by: default avatarNeil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20231212-topic-sm8650-upstream-wcd939x-usbss-v2-2-38961fea5867@linaro.org


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent de12c538

drivers/usb/typec/mux/Kconfig

+10 −0
Original line number Diff line number Diff line
@@ -56,4 +56,14 @@ config TYPEC_MUX_PTN36502 
	  Say Y or M if your system has a NXP PTN36502 Type-C redriver chip

	  found on some devices with a Type-C port.



config TYPEC_MUX_WCD939X_USBSS

	tristate "Qualcomm WCD939x USBSS Analog Audio Switch driver"

	depends on I2C

	select REGMAP_I2C

	help

	  Driver for the Qualcomm WCD939x Audio Codec USBSS domain which

	  provides support for muxing analog audio and sideband signals on a

	  common USB Type-C connector.

	  If compiled as a module, the module will be named wcd939x-usbss.



endmenu

drivers/usb/typec/mux/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -6,3 +6,4 @@ obj-$(CONFIG_TYPEC_MUX_PI3USB30532) += pi3usb30532.o 
obj-$(CONFIG_TYPEC_MUX_INTEL_PMC)	+= intel_pmc_mux.o

obj-$(CONFIG_TYPEC_MUX_NB7VPQ904M)	+= nb7vpq904m.o

obj-$(CONFIG_TYPEC_MUX_PTN36502)	+= ptn36502.o

obj-$(CONFIG_TYPEC_MUX_WCD939X_USBSS)	+= wcd939x-usbss.o

drivers/usb/typec/mux/wcd939x-usbss.c

0 → 100644
+779 −0

File added.

Preview size limit exceeded, changes collapsed.