* [PATCH v4 2/2] dt-bindings: serial: Add support for enabling RS485 mode via GPIO at boot time
@ 2023-11-21 8:28 Tomas Paukrt
2023-11-27 20:01 ` Rob Herring
0 siblings, 1 reply; 2+ messages in thread
From: Tomas Paukrt @ 2023-11-21 8:28 UTC (permalink / raw)
To: Greg Kroah-Hartman, Jiri Slaby, Rob Herring, Krzysztof Kozlowski,
Conor Dooley
Cc: linux-kernel, linux-serial, devicetree
Add an option to enable the RS485 mode at boot time based on
the state of a GPIO pin (DIP switch or configuration jumper).
The GPIO is defined by the device tree property "linux,rs485-mode-gpio".
Signed-off-by: Tomas Paukrt <tomaspaukrt@email.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
+ linux,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
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH v4 2/2] dt-bindings: serial: Add support for enabling RS485 mode via GPIO at boot time
2023-11-21 8:28 [PATCH v4 2/2] dt-bindings: serial: Add support for enabling RS485 mode via GPIO at boot time Tomas Paukrt
@ 2023-11-27 20:01 ` Rob Herring
0 siblings, 0 replies; 2+ messages in thread
From: Rob Herring @ 2023-11-27 20:01 UTC (permalink / raw)
To: Tomas Paukrt
Cc: Greg Kroah-Hartman, Jiri Slaby, Krzysztof Kozlowski, Conor Dooley,
linux-kernel, linux-serial, devicetree
On Tue, Nov 21, 2023 at 09:28:12AM +0100, Tomas Paukrt wrote:
> Add an option to enable the RS485 mode at boot time based on
> the state of a GPIO pin (DIP switch or configuration jumper).
> The GPIO is defined by the device tree property "linux,rs485-mode-gpio".
>
> Signed-off-by: Tomas Paukrt <tomaspaukrt@email.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
>
> + linux,rs485-mode-gpio:
This has little to do with Linux, so no need for linux prefix.
The preferred form is always plural '-gpios'.
> + 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
>
^ permalink raw reply [flat|nested] 2+ messages in thread
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2023-11-21 8:28 [PATCH v4 2/2] dt-bindings: serial: Add support for enabling RS485 mode via GPIO at boot time Tomas Paukrt
2023-11-27 20:01 ` Rob Herring
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