From: Rob Herring <robh@kernel.org>
To: Farouk Bouabid <farouk.bouabid@theobroma-systems.com>
Cc: Conor Dooley <conor+dt@kernel.org>,
Rob Herring <robh+dt@kernel.org>,
linux-serial@vger.kernel.org,
Heiko Stuebner <heiko.stuebner@cherry.de>,
linux-arm-kernel@lists.infradead.org,
linux-rockchip@lists.infradead.org,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Jiri Slaby <jirislaby@kernel.org>,
Heiko Stuebner <heiko@sntech.de>,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
quentin.schulz@theobroma-systems.com,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>
Subject: Re: [PATCH v5 1/6] dt-bindings: serial: Add binding for rs485 receiver enable GPIO
Date: Tue, 30 Jan 2024 16:56:54 -0600 [thread overview]
Message-ID: <170665541359.2569633.3534356334365614400.robh@kernel.org> (raw)
In-Reply-To: <20240126-dev-rx-enable-v5-1-5d934eda05ca@theobroma-systems.com>
On Fri, 26 Jan 2024 18:27:42 +0100, Farouk Bouabid wrote:
> From: Heiko Stuebner <heiko.stuebner@cherry.de>
>
> RS485 has two signals to control transmissions "driver enable" (DE) and
> "receiver enable" (RE). DE is already handled via the uarts RTS signal
> while the RE signal on most implementations doesn't get handled
> separately at all.
>
> As there still will be cases where this is needed though add a gpio
> property for declaring this signal pin.
>
> Signed-off-by: Heiko Stuebner <heiko.stuebner@cherry.de>
> Signed-off-by: Farouk Bouabid <farouk.bouabid@theobroma-systems.com>
> ---
> Documentation/devicetree/bindings/serial/rs485.yaml | 4 ++++
> 1 file changed, 4 insertions(+)
>
Reviewed-by: Rob Herring <robh@kernel.org>
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next prev parent reply other threads:[~2024-01-30 22:57 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-01-26 17:27 [PATCH v5 0/6] serial: 8250: Add support for rs485 half/full duplex on puma/ringneck-haikou Farouk Bouabid
2024-01-26 17:27 ` [PATCH v5 1/6] dt-bindings: serial: Add binding for rs485 receiver enable GPIO Farouk Bouabid
2024-01-30 22:56 ` Rob Herring [this message]
2024-01-26 17:27 ` [PATCH v5 2/6] serial: 8250: Support separate rs485 rx-enable GPIO Farouk Bouabid
2024-01-26 19:58 ` Lino Sanfilippo
2024-01-29 8:57 ` Farouk Bouabid
2024-01-30 12:29 ` Christoph Niedermaier
2024-02-08 15:46 ` Farouk Bouabid
2024-01-26 17:27 ` [PATCH v5 3/6] dt-bindings: serial: add binding for rs485 rx-enable state when rs485 is disabled Farouk Bouabid
2024-01-30 23:02 ` Rob Herring
2024-01-26 17:27 ` [PATCH v5 4/6] serial: 8250: set rx-enable gpio " Farouk Bouabid
2024-01-26 17:27 ` [PATCH v5 5/6] arm64: dts: rockchip: rk3399-puma-haikou: add rs485 support on uart2 Farouk Bouabid
2024-01-26 17:27 ` [PATCH v5 6/6] arm64: dts: rockchip: px30-ringneck-haikou: add rs485 support on uart5 Farouk Bouabid
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