w1: Add 1-Wire gpio driver
Add a bus driver for bitbanging a 1-Wire bus over a GPIO.
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
[eugen.hristev@microchip.com: fixed some issues]
Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
diff --git a/drivers/w1/Kconfig b/drivers/w1/Kconfig
index 64b27c6..d6e0457 100644
--- a/drivers/w1/Kconfig
+++ b/drivers/w1/Kconfig
@@ -13,6 +13,13 @@
if W1
+config W1_GPIO
+ bool "Enable 1-wire GPIO bitbanging"
+ default no
+ depends on DM_GPIO
+ help
+ Emulate a 1-wire bus using a GPIO.
+
endif
endmenu