mmc: core: Use delayed work in clock gating framework

[linux-2.6-block.git] / Documentation / mmc / mmc-dev-attrs.txt

diff --git a/Documentation/mmc/mmc-dev-attrs.txt b/Documentation/mmc/mmc-dev-attrs.txt
index 8898a95b41e5ee1b277cd64697870726b11bc2fa..b0245565875ac05e944da0a150cb295fd05e0650 100644 (file)
--- a/Documentation/mmc/mmc-dev-attrs.txt
+++ b/Documentation/mmc/mmc-dev-attrs.txt
@@ -64,3 +64,13 @@ Note on Erase Size and Preferred Erase Size:
        size specified by the card.
 
        "preferred_erase_size" is in bytes.
+
+SD/MMC/SDIO Clock Gating Attribute
+==================================
+
+Read and write access is provided to following attribute.
+This attribute appears only if CONFIG_MMC_CLKGATE is enabled.
+
+       clkgate_delay   Tune the clock gating delay with desired value in milli seconds.
+
+echo <desired delay> > /sys/class/mmc_host/mmcX/clkgate_delay