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author | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2015-08-05 17:04:01 -0300 |
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committer | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2015-08-05 17:04:01 -0300 |
commit | 57f0f512b273f60d52568b8c6b77e17f5636edc0 (patch) | |
tree | 5e910f0e82173f4ef4f51111366a3f1299037a7b /Documentation/devicetree/bindings/mmc/mmc-pwrseq-simple.txt |
Initial import
Diffstat (limited to 'Documentation/devicetree/bindings/mmc/mmc-pwrseq-simple.txt')
-rw-r--r-- | Documentation/devicetree/bindings/mmc/mmc-pwrseq-simple.txt | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/mmc/mmc-pwrseq-simple.txt b/Documentation/devicetree/bindings/mmc/mmc-pwrseq-simple.txt new file mode 100644 index 000000000..a462c50f1 --- /dev/null +++ b/Documentation/devicetree/bindings/mmc/mmc-pwrseq-simple.txt @@ -0,0 +1,25 @@ +* The simple MMC power sequence provider + +The purpose of the simple MMC power sequence provider is to supports a set of +common properties between various SOC designs. It thus enables us to use the +same provider for several SOC designs. + +Required properties: +- compatible : contains "mmc-pwrseq-simple". + +Optional properties: +- 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. +- 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: + + sdhci0_pwrseq { + compatible = "mmc-pwrseq-simple"; + reset-gpios = <&gpio1 12 0>; + } |