Commit 28f22fb7 authored Mar 22, 2019 by Christoph Muellner Committed by Ulf Hansson Apr 15, 2019

dt-bindings: mmc: Add disable-cqe-dcmd property.



Add disable-cqe-dcmd as optional property for MMC hosts.
This property allows to disable or not enable the direct command
features of the command queue engine.

Signed-off-by: Christoph Muellner <christoph.muellner@theobroma-systems.com>
Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Fixes: 84362d79 ("mmc: sdhci-of-arasan: Add CQHCI support for arasan,sdhci-5.1")
Cc: stable@vger.kernel.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

parent 2198eeff

Documentation/devicetree/bindings/mmc/mmc.txt

+2 −0

Original line number	Diff line number	Diff line
		@@ -64,6 +64,8 @@ Optional properties:
		whether pwrseq-simple is used. Default to 10ms if no available.
		- supports-cqe : The presence of this property indicates that the corresponding
		MMC host controller supports HW command queue feature.
		- disable-cqe-dcmd: This property indicates that the MMC controller's command
		queue engine (CQE) does not support direct commands (DCMDs).

		NOTE on CD and WP polarity. To use common for all SD/MMC host controllers line
		polarity properties, we have to fix the meaning of the "normal" and "inverted"

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