linux-kernel - [PATCH 1/2] dt-bindings: Add optional gpio property to uartps node to support rs485

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Message-ID: <1682512187-8828-2-git-send-email-manikanta.guntupalli@amd.com>
Date:   Wed, 26 Apr 2023 17:59:46 +0530
From:   Manikanta Guntupalli <manikanta.guntupalli@....com>
To:     <gregkh@...uxfoundation.org>, <robh+dt@...nel.org>,
        <krzysztof.kozlowski+dt@...aro.org>, <michal.simek@...inx.com>,
        <linux-serial@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <jirislaby@...nel.org>,
        <linux-arm-kernel@...ts.infradead.org>, <michal.simek@....com>
CC:     <git@....com>, <radhey.shyam.pandey@....com>,
        <shubhrajyoti.datta@....com>, <srinivas.goud@....com>,
        <manion05gk@...il.com>,
        Manikanta Guntupalli <manikanta.guntupalli@....com>
Subject: [PATCH 1/2] dt-bindings: Add optional gpio property to uartps node to support rs485

Add optional gpio property to uartps node and add reference to rs485.yaml

Signed-off-by: Manikanta Guntupalli <manikanta.guntupalli@....com>
---
 Documentation/devicetree/bindings/serial/cdns,uart.yaml | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/Documentation/devicetree/bindings/serial/cdns,uart.yaml b/Documentation/devicetree/bindings/serial/cdns,uart.yaml
index a8b323d7bf94..34ed0d80b923 100644
--- a/Documentation/devicetree/bindings/serial/cdns,uart.yaml
+++ b/Documentation/devicetree/bindings/serial/cdns,uart.yaml
@@ -46,6 +46,10 @@ properties:
   power-domains:
     maxItems: 1
 
+  txrx-gpios:
+    description: Optional GPIO to switch transmit and receive modes via pmod.
+    maxItems: 1
+
 required:
   - compatible
   - reg
@@ -55,6 +59,7 @@ required:
 
 allOf:
   - $ref: serial.yaml#
+  - $ref: rs485.yaml#
   - if:
       properties:
         compatible:
-- 
2.25.1