linux-kernel - [PATCH 4.19 123/190] dt-bindings: mmc: Add disable-cqe-dcmd property.

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Message-Id: <20190913130609.667502839@linuxfoundation.org>
Date:   Fri, 13 Sep 2019 14:06:18 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Christoph Muellner <christoph.muellner@...obroma-systems.com>,
        Philipp Tomsich <philipp.tomsich@...obroma-systems.com>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 4.19 123/190] dt-bindings: mmc: Add disable-cqe-dcmd property.

[ 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@...obroma-systems.com>
Signed-off-by: Philipp Tomsich <philipp.tomsich@...obroma-systems.com>
Fixes: 84362d79f436 ("mmc: sdhci-of-arasan: Add CQHCI support for arasan,sdhci-5.1")
Cc: stable@...r.kernel.org
Signed-off-by: Ulf Hansson <ulf.hansson@...aro.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 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
--- a/Documentation/devicetree/bindings/mmc/mmc.txt
+++ b/Documentation/devicetree/bindings/mmc/mmc.txt
@@ -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"
-- 
2.20.1