From: Guennadi Liakhovetski Date: Fri, 15 Feb 2013 15:13:55 +0000 (+0100) Subject: mmc: tmio-mmc: define device-tree bindings X-Git-Tag: upstream/snapshot3+hdmi~5647^2~7 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=d804820fa3302cb3d11f68a840e718d082967ad4;p=platform%2Fadaptation%2Frenesas_rcar%2Frenesas_kernel.git mmc: tmio-mmc: define device-tree bindings Define device-tree bindings for the tmio-mmc driver to be able to specify parameters, currently provided in platform data. Signed-off-by: Guennadi Liakhovetski Signed-off-by: Chris Ball --- diff --git a/Documentation/devicetree/bindings/mmc/tmio_mmc.txt b/Documentation/devicetree/bindings/mmc/tmio_mmc.txt new file mode 100644 index 0000000..df204e1 --- /dev/null +++ b/Documentation/devicetree/bindings/mmc/tmio_mmc.txt @@ -0,0 +1,20 @@ +* Toshiba Mobile IO SD/MMC controller + +The tmio-mmc driver doesn't probe its devices actively, instead its binding to +devices is managed by either MFD drivers or by the sh_mobile_sdhi platform +driver. Those drivers supply the tmio-mmc driver with platform data, that either +describe hardware capabilities, known to them, or are obtained by them from +their own platform data or from their DT information. In the latter case all +compulsory and any optional properties, common to all SD/MMC drivers, as +described in mmc.txt, can be used. Additionally the following tmio_mmc-specific +optional bindings can be used. + +Optional properties: +- toshiba,mmc-wrprotect-disable: write-protect detection is unavailable + +When used with Renesas SDHI hardware, the following compatibility strings +configure various model-specific properties: + +"renesas,sh7372-sdhi": (default) compatible with SH7372 +"renesas,r8a7740-sdhi": compatible with R8A7740: certain MMC/SD commands have to + wait for the interface to become idle.