linux-kernel - Re: [PATCH v3 2/2] dt-bindings: serial: Add option to enable RS485 mode via GPIO

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Message-Id: <3Nk.ZZrp.5w3Yn0Ecy5C.1bMzDp@seznam.cz>
Date:   Mon, 20 Nov 2023 22:45:23 +0100 (CET)
From:   "Tomas Paukrt" <tomaspaukrt@...il.cz>
To:     "Krzysztof Kozlowski" <krzk@...nel.org>,
        "Rob Herring" <robh+dt@...nel.org>,
        "Conor Dooley" <conor+dt@...nel.org>,
        "Greg Kroah-Hartman" <gregkh@...uxfoundation.org>,
        "Jiri Slaby" <jirislaby@...nel.org>
Cc:     <linux-serial@...r.kernel.org>,
        "Lino Sanfilippo" <LinoSanfilippo@....de>,
        <linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>
Subject: Re: [PATCH v3 2/2] dt-bindings: serial: Add option to enable RS485 mode via GPIO 

Add the device tree property "rs485-mode-gpio".

Signed-off-by: Tomas Paukrt <tomaspaukrt@...il.cz>
---
 Documentation/devicetree/bindings/serial/rs485.yaml | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Documentation/devicetree/bindings/serial/rs485.yaml b/Documentation/devicetree/bindings/serial/rs485.yaml
index 9418fd6..7a72f37 100644
--- a/Documentation/devicetree/bindings/serial/rs485.yaml
+++ b/Documentation/devicetree/bindings/serial/rs485.yaml
@@ -47,6 +47,10 @@ properties:
       later with proper ioctl.
     $ref: /schemas/types.yaml#/definitions/flag
 
+  rs485-mode-gpio:
+    description: GPIO pin to enable RS485 mode at boot time.
+    maxItems: 1
+
   rs485-rx-during-tx:
     description: enables the receiving of data even while sending data.
     $ref: /schemas/types.yaml#/definitions/flag
-- 
2.7.4