linux-kernel - [PATCH v2 06/15] dt-bindings: ufs: Add "max-device-gear" property for UFS device

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Message-Id: <20221031180217.32512-7-manivannan.sadhasivam@linaro.org>
Date:   Mon, 31 Oct 2022 23:32:08 +0530
From:   Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
To:     martin.petersen@...cle.com, jejb@...ux.ibm.com,
        andersson@...nel.org, vkoul@...nel.org,
        krzysztof.kozlowski+dt@...aro.org
Cc:     konrad.dybcio@...ainline.org, robh+dt@...nel.org,
        quic_cang@...cinc.com, linux-arm-msm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-phy@...ts.infradead.org, linux-scsi@...r.kernel.org,
        dmitry.baryshkov@...aro.org, ahalaney@...hat.com,
        Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
Subject: [PATCH v2 06/15] dt-bindings: ufs: Add "max-device-gear" property for UFS device

The maximum gear supported by the UFS device can be specified using the
"max-device-gear" property. This allows the UFS controller to configure the
TX/RX gear before starting communication with the UFS device.

Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
---
 Documentation/devicetree/bindings/ufs/ufs-common.yaml | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/Documentation/devicetree/bindings/ufs/ufs-common.yaml b/Documentation/devicetree/bindings/ufs/ufs-common.yaml
index 47a4e9e1a775..5dcd14909ad5 100644
--- a/Documentation/devicetree/bindings/ufs/ufs-common.yaml
+++ b/Documentation/devicetree/bindings/ufs/ufs-common.yaml
@@ -73,6 +73,11 @@ properties:
     description:
       Specifies max. load that can be drawn from VCCQ2 supply.
 
+  max-device-gear:
+    description:
+      Specifies max. gear the UFS device supports.
+    enum: [1, 2, 3, 4, 5]
+
 dependencies:
   freq-table-hz: [ 'clocks' ]
 
-- 
2.25.1