The patch below does not apply to the 4.19-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to stable@vger.kernel.org.
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From 28f22fb755ecf9f933f045bc0afdb8140641b01c Mon Sep 17 00:00:00 2001
From: Christoph Muellner christoph.muellner@theobroma-systems.com Date: Fri, 22 Mar 2019 12:38:04 +0100 Subject: [PATCH] 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: 84362d79f436 ("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
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"