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author | Thomas Petazzoni <thomas.petazzoni@free-electrons.com> | 2013-01-16 14:13:59 +0100 |
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committer | Chris Ball <cjb@laptop.org> | 2013-02-11 19:28:54 +0100 |
commit | 111936ff3bc33585b475c1033fc98cd6b3370a74 (patch) | |
tree | c561cf4562672e29145bb16faff448639e18e259 /Documentation/devicetree | |
parent | mmc: mvsdio: use slot-gpio for card detect gpio (diff) | |
download | linux-111936ff3bc33585b475c1033fc98cd6b3370a74.tar.xz linux-111936ff3bc33585b475c1033fc98cd6b3370a74.zip |
mmc: mvsdio: implement a Device Tree binding
This patch adds a simple Device Tree binding for the mvsdio driver, as
well as the necessary documentation for it. Compatibility with non-DT
platforms is preserved, by keeping the platform_data based
initialization.
We introduce a small difference between non-DT and DT platforms: DT
platforms are required to provide a clocks = <...> property, which the
driver uses to get the frequency of the clock that goes to the SDIO
IP. The behaviour on non-DT platforms is kept unchanged: a clock
reference is not mandatory, but the clock frequency must be passed in
the "clock" field of the mvsdio_platform_data structure.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Tested-by: Stefan Peter <s.peter@mpl.ch>
Tested-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
Signed-off-by: Chris Ball <cjb@laptop.org>
Diffstat (limited to 'Documentation/devicetree')
-rw-r--r-- | Documentation/devicetree/bindings/mmc/orion-sdio.txt | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/mmc/orion-sdio.txt b/Documentation/devicetree/bindings/mmc/orion-sdio.txt new file mode 100644 index 000000000000..84f0ebd67a13 --- /dev/null +++ b/Documentation/devicetree/bindings/mmc/orion-sdio.txt @@ -0,0 +1,17 @@ +* Marvell orion-sdio controller + +This file documents differences between the core properties in mmc.txt +and the properties used by the orion-sdio driver. + +- compatible: Should be "marvell,orion-sdio" +- clocks: reference to the clock of the SDIO interface + +Example: + + mvsdio@d00d4000 { + compatible = "marvell,orion-sdio"; + reg = <0xd00d4000 0x200>; + interrupts = <54>; + clocks = <&gateclk 17>; + status = "disabled"; + }; |