extcon: rt8973a: Add Richtek RT8973A extcon driver
This patch add support for Richtek RT8973A which is Micro USB Switch OVP
and i2c interface. The RT8973A is a USB port accessory detector and switch
that is optimized to protect low voltage system from abnormal high input
voltage (up to 28V) and supports high speed USB operation. Also, RT8973A
support 'auto-configuration' mode. If auto-configuration mode is enabled,
RT8973A would control internal h/w patch for USB D-/D+ switching.
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Seung-Woo Kim <sw0312.kim@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
diff --git a/drivers/extcon/Kconfig b/drivers/extcon/Kconfig
index 764f3a1..6a1f7de 100644
--- a/drivers/extcon/Kconfig
+++ b/drivers/extcon/Kconfig
@@ -70,6 +70,18 @@
Say Y here to enable support for USB peripheral and USB host
detection by palmas usb.
+config EXTCON_RT8973A
+ tristate "RT8973A EXTCON support"
+ depends on I2C
+ select IRQ_DOMAIN
+ select REGMAP_I2C
+ select REGMAP_IRQ
+ help
+ If you say yes here you get support for the MUIC device of
+ Richtek RT8973A. The RT8973A is a USB port accessory detector
+ and switch that is optimized to protect low voltage system
+ from abnormal high input voltage (up to 28V).
+
config EXTCON_SM5502
tristate "SM5502 EXTCON support"
depends on I2C