Commit 2f7649f5 authored by Ben Dooks's avatar Ben Dooks Committed by Ulf Hansson

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: default avatarBen Dooks <ben.dooks@codethink.co.uk>
Signed-off-by: default avatarUlf Hansson <ulf.hansson@linaro.org>
parent 66fe6ac5
...@@ -75,6 +75,17 @@ Optional SDIO properties: ...@@ -75,6 +75,17 @@ Optional SDIO properties:
- wakeup-source: Enables wake up of host system on SDIO IRQ assertion - wakeup-source: Enables wake up of host system on SDIO IRQ assertion
(Legacy property supported: "enable-sdio-wakeup") (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: MMC power sequences:
-------------------- --------------------
......
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