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Message-ID: <e89272b1-7780-4a91-888d-27ae7242f881@lunn.ch>
Date: Sat, 27 Apr 2024 22:40:53 +0200
From: Andrew Lunn <andrew@...n.ch>
To: Ramón Nordin Rodriguez <ramon.nordin.rodriguez@...roamp.se>
Cc: Parthiban Veerasooran <Parthiban.Veerasooran@...rochip.com>,
	davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org,
	pabeni@...hat.com, horms@...nel.org, saeedm@...dia.com,
	anthony.l.nguyen@...el.com, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org, corbet@....net,
	linux-doc@...r.kernel.org, robh+dt@...nel.org,
	krzysztof.kozlowski+dt@...aro.org, conor+dt@...nel.org,
	devicetree@...r.kernel.org, horatiu.vultur@...rochip.com,
	ruanjinjie@...wei.com, steen.hegelund@...rochip.com,
	vladimir.oltean@....com, UNGLinuxDriver@...rochip.com,
	Thorsten.Kummermehr@...rochip.com, Pier.Beruto@...emi.com,
	Selvamani.Rajagopal@...emi.com, Nicolas.Ferre@...rochip.com,
	benjamin.bigler@...nformulastudent.ch
Subject: Re: [PATCH net-next v4 11/12] microchip: lan865x: add driver support
 for Microchip's LAN865X MAC-PHY

On Sat, Apr 27, 2024 at 09:19:34PM +0200, Ramón Nordin Rodriguez wrote:
> Hi,
> 
> For me the mac driver fails to probe with the following log
> [    0.123325] SPI driver lan865x has no spi_device_id for microchip,lan8651
> 
> With this change the driver probes
> 
> diff --git a/drivers/net/ethernet/microchip/lan865x/lan865x.c b/drivers/net/ethernet/microchip/lan865x/lan865x.c
> index 9abefa8b9d9f..72a663f14f50 100644
> --- a/drivers/net/ethernet/microchip/lan865x/lan865x.c
> +++ b/drivers/net/ethernet/microchip/lan865x/lan865x.c
> @@ -364,7 +364,7 @@ static void lan865x_remove(struct spi_device *spi)
>  }
> 
>  static const struct of_device_id lan865x_dt_ids[] = {
> -       { .compatible = "microchip,lan8651", "microchip,lan8650" },
> +       { .compatible = "microchip,lan865x", "microchip,lan8650" },
>         { /* Sentinel */ }
>  };

The device tree binding says:

+  compatible:
+    oneOf:
+      - const: microchip,lan8650
+      - items:
+          - const: microchip,lan8651
+          - const: microchip,lan8650

So your DT node should either be:

compatible = "microchip,lan8651", "microchip,lan8650";

or

compatible = "microchip,lan8650"

There is no mention of lan865x in the binding, so this patch is
clearly wrong.

What do you have in your DT node?

     Andrew

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