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| author |   Javier Martinez Canillas <javier.martinez@collabora.co.uk> | 2015-01-29 16:00:05 +0100 |
|---|---|---|
| committer |   Ulf Hansson <ulf.hansson@linaro.org> | 2015-01-30 12:03:16 +0100 |
| commit | 3f656a168c70a583a5d87614eb4a707abd7f80b9 (patch) | |
| tree | d5c3fa05ecc4b49cbdcd96c02d976ca40bfdbea6 /Documentation/devicetree/bindings/mmc/mmc-pwrseq-simple.txt | |
| parent | mmc: pwrseq_simple: Extend to support more pins (diff) | |
| download | linux-dev-3f656a168c70a583a5d87614eb4a707abd7f80b9.tar.xz linux-dev-3f656a168c70a583a5d87614eb4a707abd7f80b9.zip | |
mmc: pwrseq: Document optional clock for the simple power sequence
Some WLAN chips attached to a SDIO interface, need an external clock
to be operational. Since this is very common, extend the simple MMC
power sequence DT binding to support an optional clock.
Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'Documentation/devicetree/bindings/mmc/mmc-pwrseq-simple.txt')
| -rw-r--r-- | Documentation/devicetree/bindings/mmc/mmc-pwrseq-simple.txt | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/mmc/mmc-pwrseq-simple.txt b/Documentation/devicetree/bindings/mmc/mmc-pwrseq-simple.txt index eaae652213ae..a462c50f19a8 100644 --- a/Documentation/devicetree/bindings/mmc/mmc-pwrseq-simple.txt +++ b/Documentation/devicetree/bindings/mmc/mmc-pwrseq-simple.txt @@ -12,6 +12,10 @@ Optional properties: at initialization and prior we start the power up procedure of the card. They will be de-asserted right after the power has been provided to the card. +- clocks : Must contain an entry for the entry in clock-names. + See ../clocks/clock-bindings.txt for details. +- clock-names : Must include the following entry: + "ext_clock" (External clock provided to the card). Example: |