linux-kernel - [PATCH v1 1/3] dt-bindings: mmc: Add optional cqe off properties

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Date:   Thu, 12 Nov 2020 15:52:06 +0800
From:   Wenbin Mei <wenbin.mei@...iatek.com>
To:     Ulf Hansson <ulf.hansson@...aro.org>,
        Rob Herring <robh+dt@...nel.org>
CC:     Matthias Brugger <matthias.bgg@...il.com>,
        <irq-linux@...e.qmqm.pl>, Wenbin Mei <wenbin.mei@...iatek.com>,
        Veerabhadrarao Badiganti <vbadigan@...eaurora.org>,
        Yoshihiro Shimoda <yoshihiro.shimoda.uh@...esas.com>,
        Baolin Wang <baolin.wang@...aro.org>,
        Ludovic Barre <ludovic.barre@...com>,
        Krishna Konda <kkonda@...eaurora.org>,
        Bradley Bolen <bradleybolen@...il.com>,
        Chaotian Jing <chaotian.jing@...iatek.com>,
        <linux-mmc@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-mediatek@...ts.infradead.org>, <srv_heupstream@...iatek.com>
Subject: [PATCH v1 1/3] dt-bindings: mmc: Add optional cqe off properties

Add optional properties for cqe hosts which are used to set cqe off
during suspend flow.

Signed-off-by: Wenbin Mei <wenbin.mei@...iatek.com>
---
 Documentation/devicetree/bindings/mmc/mmc-controller.yaml | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/Documentation/devicetree/bindings/mmc/mmc-controller.yaml b/Documentation/devicetree/bindings/mmc/mmc-controller.yaml
index b96da0c7f819..457c9a84b988 100644
--- a/Documentation/devicetree/bindings/mmc/mmc-controller.yaml
+++ b/Documentation/devicetree/bindings/mmc/mmc-controller.yaml
@@ -164,6 +164,13 @@ properties:
     description:
       enable SDIO IRQ signalling on this interface
 
+  cqe-off-in-suspend:
+    $ref: /schemas/types.yaml#/definitions/flag
+    description:
+      After suspend, the mmc host is powered off by HW, and bring CQE register
+      to default state, so we add the flag to re-init CQE register after resume
+      back.
+
   full-pwr-cycle:
     $ref: /schemas/types.yaml#/definitions/flag
     description:
-- 
2.18.0