linux-kernel - [PATCH v3 1/3] dt-bindings: mmc: Add disable-cqe-dcmd property.

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Date:   Fri, 22 Mar 2019 12:38:04 +0100
From:   Christoph Muellner <christoph.muellner@...obroma-systems.com>
To:     robh+dt@...nel.org, mark.rutland@....com, heiko@...ech.de,
        shawn.lin@...k-chips.com, ulf.hansson@...aro.org,
        adrian.hunter@...el.com
Cc:     Christoph Muellner <christoph.muellner@...obroma-systems.com>,
        Philipp Tomsich <philipp.tomsich@...obroma-systems.com>,
        Michal Simek <michal.simek@...inx.com>,
        Viresh Kumar <viresh.kumar@...aro.org>,
        Enric Balletbo i Serra <enric.balletbo@...labora.com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Douglas Anderson <dianders@...omium.org>,
        Klaus Goger <klaus.goger@...obroma-systems.com>,
        Lin Huang <hl@...k-chips.com>, Randy Li <ayaka@...lik.info>,
        Tony Xie <tony.xie@...k-chips.com>,
        Vicente Bergas <vicencb@...il.com>,
        Ezequiel Garcia <ezequiel@...labora.com>,
        linux-mmc@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-rockchip@...ts.infradead.org
Subject: [PATCH v3 1/3] 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@...obroma-systems.com>
Signed-off-by: Philipp Tomsich <philipp.tomsich@...obroma-systems.com>
---
 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 cdbcfd3a4ff2..c269dbe384fe 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"
-- 
2.11.0