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apalis/colibri_t30: add comment about tristate and input vs. output pinmuxing

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Add pinmuxing comment stating that TRISTATE means the output driver is
tri-stated and INPUT means the input driver is enabled vs. OUTPUT where
it is disabled.

Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Reviewed-by: Igor Opaniuk <igor.opaniuk@toradex.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
This commit is contained in:
Marcel Ziswiler
2019-09-12 11:12:52 +02:00
committed by Tom Warren
parent ee1e04558f
commit bfe682e9dd
2 changed files with 4 additions and 0 deletions
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2
board/toradex/apalis_t30/pinmux-config-apalis_t30.h
View File

@@ -11,7 +11,9 @@
.pingrp = PMUX_PINGRP_##_pingrp, \
.func = PMUX_FUNC_##_mux, \
.pull = PMUX_PULL_##_pull, \
/* TRISTATE here means output driver is tri-stated */ \
.tristate = PMUX_TRI_##_tri, \
/* INPUT here means input driver is enabled vs. OUTPUT where it is disabled */ \
.io = PMUX_PIN_##_io, \
.lock = PMUX_PIN_LOCK_DEFAULT, \
.od = PMUX_PIN_OD_DEFAULT, \

2
board/toradex/colibri_t30/pinmux-config-colibri_t30.h
View File

@@ -11,7 +11,9 @@
.pingrp = PMUX_PINGRP_##_pingrp, \
.func = PMUX_FUNC_##_mux, \
.pull = PMUX_PULL_##_pull, \
/* TRISTATE here means output driver is tri-stated */ \
.tristate = PMUX_TRI_##_tri, \
/* INPUT here means input driver is enabled vs. OUTPUT where it is disabled */ \
.io = PMUX_PIN_##_io, \
.lock = PMUX_PIN_LOCK_DEFAULT, \
.od = PMUX_PIN_OD_DEFAULT, \