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mmc: mmci: Add bindings to operate CMD, CK, CKIN pins as GPIO

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Add DT bindings to describe GPIO line associated with CMD, CK, CKIN pins.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Alexandre Torgue <alexandre.torgue@st.com>
Cc: Ludovic Barre <ludovic.barre@st.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20210124170258.32862-1-marex@denx.de
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Marek Vasut 2021-01-24 18:02:55 +01:00 committed by Ulf Hansson
parent c93767cf64
commit bbaa298f57
1 changed files with 20 additions and 0 deletions
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20
Documentation/devicetree/bindings/mmc/arm,pl18x.yaml
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@ -127,6 +127,26 @@ properties:
driver to sample the receive data (for example with a voltage switch
transceiver).
st,cmd-gpios:
maxItems: 1
description:
The GPIO matching the CMD pin.
st,ck-gpios:
maxItems: 1
description:
The GPIO matching the CK pin.
st,ckin-gpios:
maxItems: 1
description:
The GPIO matching the CKIN pin.
dependencies:
st,cmd-gpios: [ "st,use-ckin" ]
st,ck-gpios: [ "st,use-ckin" ]
st,ckin-gpios: [ "st,use-ckin" ]
unevaluatedProperties: false
required: