[PATCH 4.19 123/190] dt-bindings: mmc: Add disable-cqe-dcmd property.
From: Greg Kroah-Hartman
Date: Fri Sep 13 2019 - 09:17:03 EST
[ Upstream commit 28f22fb755ecf9f933f045bc0afdb8140641b01c ]
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@xxxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Philipp Tomsich <philipp.tomsich@xxxxxxxxxxxxxxxxxxxxx>
Fixes: 84362d79f436 ("mmc: sdhci-of-arasan: Add CQHCI support for arasan,sdhci-5.1")
Signed-off-by: Ulf Hansson <ulf.hansson@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
Documentation/devicetree/bindings/mmc/mmc.txt | 2 ++
1 file changed, 2 insertions(+)
diff --git a/Documentation/devicetree/bindings/mmc/mmc.txt b/Documentation/devicetree/bindings/mmc/mmc.txt
index cdbcfd3a4ff21..c269dbe384fea 100644
@@ -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"