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w1: Add 1-Wire uclass

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We might want to use 1-Wire devices connected on boards such as EEPROMs in
U-Boot.

Provide a framework to be able to do that.

Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
[eugen.hristev@microchip.com: reworked]
Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
This commit is contained in:
Maxime Ripard
2018-09-18 10:35:24 +03:00
committed by Tom Rini
parent 620300043c
commit d3e19cf919
7 changed files with 295 additions and 0 deletions
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1
include/dm/uclass-id.h
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@@ -93,6 +93,7 @@ enum uclass_id {
UCLASS_VIDEO, /* Video or LCD device */
UCLASS_VIDEO_BRIDGE, /* Video bridge, e.g. DisplayPort to LVDS */
UCLASS_VIDEO_CONSOLE, /* Text console driver for video device */
UCLASS_W1, /* Dallas 1-Wire bus */
UCLASS_WDT, /* Watchdot Timer driver */
UCLASS_COUNT,