From: Ben Dooks Date: Mon, 1 Aug 2016 09:22:11 +0000 (+0100) Subject: mmc: core: Add the vmmc/vmmcq regulator info X-Git-Url: http://git.efficios.com/?a=commitdiff_plain;h=49024a716b6587a1e10954454ea7ed3f22451bdb;p=deliverable%2Flinux.git mmc: core: Add the vmmc/vmmcq regulator info 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 Signed-off-by: Ulf Hansson --- diff --git a/Documentation/devicetree/bindings/mmc/mmc.txt b/Documentation/devicetree/bindings/mmc/mmc.txt index ac7b6a1d835a..8a377827695b 100644 --- a/Documentation/devicetree/bindings/mmc/mmc.txt +++ b/Documentation/devicetree/bindings/mmc/mmc.txt @@ -75,6 +75,17 @@ 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: --------------------