linux-kernel - Re: [PATCH] dt-bindings: mfd: syscon: Add ti,k3-pcie-ctrl compatible

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Message-ID: <be60e695-894e-4281-a62c-b77e45680293@ti.com>
Date: Wed, 31 Jan 2024 10:13:33 -0600
From: Andrew Davis <afd@...com>
To: Siddharth Vadapalli <s-vadapalli@...com>, <lee@...nel.org>,
        <robh+dt@...nel.org>, <krzysztof.kozlowski+dt@...aro.org>,
        <conor+dt@...nel.org>
CC: <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>, <srk@...com>
Subject: Re: [PATCH] dt-bindings: mfd: syscon: Add ti,k3-pcie-ctrl compatible

On 1/31/24 5:23 AM, Siddharth Vadapalli wrote:
> The PCIE_CTRL registers within the CTRL_MMR space of TI's K3 SoCs are
> used to configure the link speed, lane count and mode of operation of
> the respective PCIe instance. Add compatible for allowing the PCIe
> driver to obtain a regmap for the PCIE_CTRL register within the System
> Controller device-tree node in order to configure the PCIe instance
> accordingly.
> 
> Signed-off-by: Siddharth Vadapalli <s-vadapalli@...com>
> ---
> 
> This patch is based on linux-next tagged next-20240131.
> 
>   Documentation/devicetree/bindings/mfd/syscon.yaml | 1 +
>   1 file changed, 1 insertion(+)
> 
> diff --git a/Documentation/devicetree/bindings/mfd/syscon.yaml b/Documentation/devicetree/bindings/mfd/syscon.yaml
> index 084b5c2a2a3c..da571a24e21f 100644
> --- a/Documentation/devicetree/bindings/mfd/syscon.yaml
> +++ b/Documentation/devicetree/bindings/mfd/syscon.yaml
> @@ -73,6 +73,7 @@ properties:
>                 - rockchip,rv1126-qos
>                 - starfive,jh7100-sysmain
>                 - ti,am654-dss-oldi-io-ctrl
> +              - ti,k3-pcie-ctrl

This might not be the same for all K3 devices, you should use
the name of the first device which uses this, so:

ti,j721e-pcie-ctrl

Andrew

>   
>             - const: syscon
>