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| author | Marcel Ziswiler <marcel.ziswiler@toradex.com> | 2019-09-12 11:12:52 +0200 |
|---|---|---|
| committer | Tom Warren <twarren@nvidia.com> | 2020-12-04 13:21:15 -0700 |
| commit | bfe682e9ddbd8d13903f5e51452d8bff07706f85 (patch) | |
| tree | b5f1a3991412d65d9e6e46f12c5ca74316282b6b | |
| parent | ee1e04558ff8c8ed812b986939447f129bb0b0bb (diff) | |
| download | u-boot-bfe682e9ddbd8d13903f5e51452d8bff07706f85.zip u-boot-bfe682e9ddbd8d13903f5e51452d8bff07706f85.tar.gz u-boot-bfe682e9ddbd8d13903f5e51452d8bff07706f85.tar.bz2 | |
apalis/colibri_t30: add comment about tristate and input vs. output pinmuxing
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>
| -rw-r--r-- | board/toradex/apalis_t30/pinmux-config-apalis_t30.h | 2 | ||||
| -rw-r--r-- | board/toradex/colibri_t30/pinmux-config-colibri_t30.h | 2 |
2 files changed, 4 insertions, 0 deletions
diff --git a/board/toradex/apalis_t30/pinmux-config-apalis_t30.h b/board/toradex/apalis_t30/pinmux-config-apalis_t30.h index 49c2df7..8d6696a 100644 --- a/board/toradex/apalis_t30/pinmux-config-apalis_t30.h +++ b/board/toradex/apalis_t30/pinmux-config-apalis_t30.h @@ -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, \ diff --git a/board/toradex/colibri_t30/pinmux-config-colibri_t30.h b/board/toradex/colibri_t30/pinmux-config-colibri_t30.h index bdbbf5e..6181b50 100644 --- a/board/toradex/colibri_t30/pinmux-config-colibri_t30.h +++ b/board/toradex/colibri_t30/pinmux-config-colibri_t30.h @@ -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, \ |