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Subject: Re: [PATCH 1/4] dt-bindings: phy: Add binding for TI TCAN104x CAN
 transceivers
To:     Aswath Govindraju <a-govindraju@ti.com>
Cc:     Vignesh Raghavendra <vigneshr@ti.com>,
        Kishon Vijay Abraham I <kishon@ti.com>,
        Lokesh Vutla <lokeshvutla@ti.com>,
        Grygorii Strashko <grygorii.strashko@ti.com>,
        Chandrasekar Ramakrishnan <rcsekar@samsung.com>,
        Wolfgang Grandegger <wg@grandegger.com>,
        "David S. Miller" <davem@davemloft.net>,
        Jakub Kicinski <kuba@kernel.org>,
        Rob Herring <robh+dt@kernel.org>,
        Vinod Koul <vkoul@kernel.org>,
        Sriram Dash <sriram.dash@samsung.com>,
        linux-can@vger.kernel.org, netdev@vger.kernel.org,
        devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
        linux-phy@lists.infradead.org
References: <20210409134056.18740-1-a-govindraju@ti.com>
 <20210409134056.18740-2-a-govindraju@ti.com>
From:   Marc Kleine-Budde <mkl@pengutronix.de>
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Message-ID: <f9b04d93-c249-970e-3721-50eb268a948f@pengutronix.de>
Date:   Mon, 12 Apr 2021 12:19:30 +0200
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In-Reply-To: <20210409134056.18740-2-a-govindraju@ti.com>
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From: Marc Kleine-Budde <mkl@pengutronix.de>
To: Aswath Govindraju <a-govindraju@ti.com>
Cc: Vignesh Raghavendra <vigneshr@ti.com>,
 Kishon Vijay Abraham I <kishon@ti.com>, Lokesh Vutla <lokeshvutla@ti.com>,
 Grygorii Strashko <grygorii.strashko@ti.com>,
 Chandrasekar Ramakrishnan <rcsekar@samsung.com>,
 Wolfgang Grandegger <wg@grandegger.com>,
 "David S. Miller" <davem@davemloft.net>, Jakub Kicinski <kuba@kernel.org>,
 Rob Herring <robh+dt@kernel.org>, Vinod Koul <vkoul@kernel.org>,
 Sriram Dash <sriram.dash@samsung.com>, linux-can@vger.kernel.org,
 netdev@vger.kernel.org, devicetree@vger.kernel.org,
 linux-kernel@vger.kernel.org, linux-phy@lists.infradead.org
Message-ID: <f9b04d93-c249-970e-3721-50eb268a948f@pengutronix.de>
Subject: Re: [PATCH 1/4] dt-bindings: phy: Add binding for TI TCAN104x CAN
 transceivers
References: <20210409134056.18740-1-a-govindraju@ti.com>
 <20210409134056.18740-2-a-govindraju@ti.com>
In-Reply-To: <20210409134056.18740-2-a-govindraju@ti.com>

--OBJqPya6rP0JiPEes0P0cAigqYmJ4JKBD
Content-Type: text/plain; charset=utf-8
Content-Language: de-DE
Content-Transfer-Encoding: quoted-printable

On 4/9/21 3:40 PM, Aswath Govindraju wrote:
> Add binding documentation for TI TCAN104x CAN transceivers.
>=20
> Signed-off-by: Aswath Govindraju <a-govindraju@ti.com>
> ---
>  .../bindings/phy/ti,tcan104x-can.yaml         | 56 +++++++++++++++++++=

>  1 file changed, 56 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/phy/ti,tcan104x-c=
an.yaml
>=20
> diff --git a/Documentation/devicetree/bindings/phy/ti,tcan104x-can.yaml=
 b/Documentation/devicetree/bindings/phy/ti,tcan104x-can.yaml
> new file mode 100644
> index 000000000000..4abfc30a97d0
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/phy/ti,tcan104x-can.yaml
> @@ -0,0 +1,56 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: "http://devicetree.org/schemas/phy/ti,tcan104x-can.yaml#"
> +$schema: "http://devicetree.org/meta-schemas/core.yaml#"
> +
> +title: TCAN104x CAN TRANSCEIVER PHY
> +
> +maintainers:
> +  - Aswath Govindraju <a-govindraju@ti.com>
> +
> +properties:
> +  $nodename:
> +    pattern: "^tcan104x-phy"
> +
> +  compatible:
> +    enum:
> +      - ti,tcan1042
> +      - ti,tcan1043

Can you create a generic standby only and a generic standby and enable tr=
ansceiver?

> +
> +  '#phy-cells':
> +    const: 0
> +
> +  standby-gpios:
> +    description:
> +      gpio node to toggle standby signal on transceiver
> +    maxItems: 1
> +
> +  enable-gpios:
> +    description:
> +      gpio node to toggle enable signal on transceiver
> +    maxItems: 1
> +
> +  max-bitrate:
> +    $ref: /schemas/types.yaml#/definitions/uint32
> +    description:
> +      max bit rate supported in bps
> +    minimum: 1
> +
> +required:
> +  - compatible
> +  - '#phy-cells'
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/gpio/gpio.h>
> +
> +    transceiver1: tcan104x-phy {
> +      compatible =3D "ti,tcan1043";
> +      #phy-cells =3D <0>;
> +      max-bitrate =3D <5000000>;
> +      standby-gpios =3D <&wakeup_gpio1 16 GPIO_ACTIVE_LOW>;
> +      enable-gpios =3D <&main_gpio1 67 GPIO_ACTIVE_LOW>;
> +    };
>=20


--=20
Pengutronix e.K.                 | Marc Kleine-Budde           |
Embedded Linux                   | https://www.pengutronix.de  |
Vertretung West/Dortmund         | Phone: +49-231-2826-924     |
Amtsgericht Hildesheim, HRA 2686 | Fax:   +49-5121-206917-5555 |


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