The core MMC code adds two (optional) regulator properites that drivers should use to get their supplies. This is not documented anywhere so add information on it.
Signed-off-by: Ben Dooks <[email protected]> --- Documentation/devicetree/bindings/mmc/mmc.txt | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/Documentation/devicetree/bindings/mmc/mmc.txt b/Documentation/devicetree/bindings/mmc/mmc.txt index ed23b9b..8cbcbce 100644 --- a/Documentation/devicetree/bindings/mmc/mmc.txt +++ b/Documentation/devicetree/bindings/mmc/mmc.txt @@ -71,6 +71,17 @@ Optional SDIO properties: - wakeup-source: Enables wake up of host system on SDIO IRQ assertion (Legacy property supported: "enable-sdio-wakeup") +MMC power +--------- + +Controllers may implement power control from both the connected cards and +the IO signaling (for example to change to high-speed 1.8V signalling). If +the system supports this, then the following two properties should point +to valid regulator nodes: + +- vqmmc-supply: supply node for IO line power +- vmmc-supply: supply node for card's power + MMC power sequences: -------------------- -- 2.8.1
