diff options
| author | Javier Martinez Canillas <javier.martinez@collabora.co.uk> | 2015-01-29 16:00:03 +0100 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2015-01-30 11:59:38 +0100 |
| commit | a1d7579b25e4ab448a2605bc7e96f1b9c8762bba (patch) | |
| tree | e4020d9a4d9429f4203d4206e04db1f4f6c2a2a0 /Documentation/devicetree | |
| parent | 8a8735eb4ceaa40ddd18c09c0bfa5dae34371a3a (diff) | |
mmc: pwrseq: Document that simple sequence support more than one GPIO
Many SDIO/MMC attached WLAN chips need more than one ping for their reset
sequence. Extend the pwrseq_simple binding to support more than one pin.
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')
| -rw-r--r-- | Documentation/devicetree/bindings/mmc/mmc-pwrseq-simple.txt | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/Documentation/devicetree/bindings/mmc/mmc-pwrseq-simple.txt b/Documentation/devicetree/bindings/mmc/mmc-pwrseq-simple.txt index da333d9ed94c..eaae652213ae 100644 --- a/Documentation/devicetree/bindings/mmc/mmc-pwrseq-simple.txt +++ b/Documentation/devicetree/bindings/mmc/mmc-pwrseq-simple.txt @@ -8,9 +8,10 @@ Required properties: - compatible : contains "mmc-pwrseq-simple". Optional properties: -- reset-gpios : contains a GPIO specifier. The reset GPIO is asserted at - initialization and prior we start the power up procedure of the card. It - will be de-asserted right after the power has been provided to the card. +- reset-gpios : contains a list of GPIO specifiers. The reset GPIOs are asserted + 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. Example: |