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From: Rob Herring <robh@kernel.org>
To: Hui Wang <hui.wang@canonical.com>
Cc: linux-serial@vger.kernel.org, devicetree@vger.kernel.org,
	gregkh@linuxfoundation.org, jirislaby@kernel.org,
	hvilleneuve@dimonoff.com
Subject: Re: [PATCH 1/2] dt-bindings: serial: sc16is7xx: add reset-gpios
Date: Mon, 3 Jun 2024 08:18:50 -0500	[thread overview]
Message-ID: <20240603131850.GA148307-robh@kernel.org> (raw)
In-Reply-To: <20240603123710.649549-1-hui.wang@canonical.com>

On Mon, Jun 03, 2024 at 08:37:09PM +0800, Hui Wang wrote:
> In some designs, the chip reset pin is connected to a gpio, this
> gpio needs to be set correctly before probing the driver, so adding
> a reset-gpios in the device tree.
> 
> Signed-off-by: Hui Wang <hui.wang@canonical.com>
> ---
>  Documentation/devicetree/bindings/serial/nxp,sc16is7xx.yaml | 4 ++++
>  1 file changed, 4 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/serial/nxp,sc16is7xx.yaml b/Documentation/devicetree/bindings/serial/nxp,sc16is7xx.yaml
> index 5dec15b7e7c3..62aff6e034cb 100644
> --- a/Documentation/devicetree/bindings/serial/nxp,sc16is7xx.yaml
> +++ b/Documentation/devicetree/bindings/serial/nxp,sc16is7xx.yaml
> @@ -28,6 +28,9 @@ properties:
>    clocks:
>      maxItems: 1
>  
> +  reset-gpios:
> +    maxItems: 1
> +
>    clock-frequency:
>      description:
>        When there is no clock provider visible to the platform, this
> @@ -120,6 +123,7 @@ examples:
>              compatible = "nxp,sc16is752";
>              reg = <0x54>;
>              clocks = <&clk20m>;
> +            reset-gpios = <&gpio5 13 GPIO_ACTIVE_LOW>;

Missing the header for the define.

Test your bindings before sending.

>              interrupt-parent = <&gpio3>;
>              interrupts = <7 IRQ_TYPE_EDGE_FALLING>;
>              nxp,modem-control-line-ports = <0 1>; /* Ports 0 and 1 as modem control lines */
> -- 
> 2.34.1
> 

  parent reply	other threads:[~2024-06-03 13:18 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-06-03 12:37 [PATCH 1/2] dt-bindings: serial: sc16is7xx: add reset-gpios Hui Wang
2024-06-03 12:37 ` [PATCH 2/2] serial: sc16is7xx: setup reset pin if it is defined in device tree Hui Wang
2024-06-03 13:11   ` Hugo Villeneuve
2024-06-04 10:34     ` Hui Wang
2024-06-03 13:18 ` Rob Herring [this message]
2024-06-04 10:35   ` [PATCH 1/2] dt-bindings: serial: sc16is7xx: add reset-gpios Hui Wang
2024-06-04  6:54 ` Krzysztof Kozlowski
2024-06-04 10:35   ` Hui Wang

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