diff options
| author | Ben Dooks <ben.dooks@codethink.co.uk> | 2016-08-01 10:22:11 +0100 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2016-09-26 21:31:08 +0200 |
| commit | 2f7649f5048cfca9c236a8120c51ed762569a5e8 (patch) | |
| tree | 448ac7dfd528269df8023238bf48d1fc8b944bd9 /Documentation/devicetree/bindings/mmc | |
| parent | 66fe6ac5d5e120b85c2ed310eb25b15a77c110c0 (diff) | |
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 <ben.dooks@codethink.co.uk>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'Documentation/devicetree/bindings/mmc')
| -rw-r--r-- | Documentation/devicetree/bindings/mmc/mmc.txt | 11 |
1 files changed, 11 insertions, 0 deletions
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: -------------------- |