Re: [PATCH net-next v4 11/12] microchip: lan865x: add driver support for Microchip's LAN865X MAC-PHY

Andrew Lunn
2024-04-27T20:41:18Z

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