linux-kernel - [PATCH v2 01/11] dt-bindings: spi: allow expressing DTR capability

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Date:   Wed, 26 Feb 2020 15:06:53 +0530
From:   Pratyush Yadav <p.yadav@...com>
To:     Tudor Ambarus <tudor.ambarus@...rochip.com>,
        Miquel Raynal <miquel.raynal@...tlin.com>,
        Richard Weinberger <richard@....at>,
        Vignesh Raghavendra <vigneshr@...com>,
        Mark Brown <broonie@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>
CC:     Pratyush Yadav <p.yadav@...com>, <linux-mtd@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, <linux-spi@...r.kernel.org>,
        <devicetree@...r.kernel.org>, Sekhar Nori <nsekhar@...com>
Subject: [PATCH v2 01/11] dt-bindings: spi: allow expressing DTR capability

Allow spi devices to express DTR receive and transmit capabilities via
the properties "spi-rx-dtr" and "spi-tx-dtr".

Signed-off-by: Pratyush Yadav <p.yadav@...com>
---
 .../devicetree/bindings/spi/spi-controller.yaml        | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/Documentation/devicetree/bindings/spi/spi-controller.yaml b/Documentation/devicetree/bindings/spi/spi-controller.yaml
index 1e0ca6ccf64b..7a84debed213 100644
--- a/Documentation/devicetree/bindings/spi/spi-controller.yaml
+++ b/Documentation/devicetree/bindings/spi/spi-controller.yaml
@@ -120,6 +120,11 @@ patternProperties:
         description:
           Delay, in microseconds, after a read transfer.
 
+      spi-rx-dtr:
+        $ref: /schemas/types.yaml#/definitions/flag
+        description:
+          Device supports receiving in DTR mode.
+
       spi-tx-bus-width:
         allOf:
           - $ref: /schemas/types.yaml#/definitions/uint32
@@ -132,6 +137,11 @@ patternProperties:
         description:
           Delay, in microseconds, after a write transfer.
 
+      spi-tx-dtr:
+        $ref: /schemas/types.yaml#/definitions/flag
+        description:
+          Device supports transmitting in DTR mode.
+
     required:
       - compatible
       - reg
-- 
2.25.0