[PATCH v1 02/10] serial: atmel: add lan9696 (Microchip LAN969X) support

Marco Felsch m.felsch at pengutronix.de
Fri Jun 12 05:49:22 PDT 2026


On 26-06-12, Oleksij Rempel wrote:
> Allow building the Atmel USART driver on Microchip LAN969X (ARCH_MICROCHIP)
> in addition to ARCH_AT91, and match the new "microchip,lan9691-usart"
> compatible alongside the existing AT91 variants.
> 
> Signed-off-by: Oleksij Rempel <o.rempel at pengutronix.de>
> ---
>  drivers/serial/Kconfig | 10 +++++++---
>  drivers/serial/atmel.c |  3 ++-
>  2 files changed, 9 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/serial/Kconfig b/drivers/serial/Kconfig
> index 6ac1d94526c2..15cbdafcffcc 100644
> --- a/drivers/serial/Kconfig
> +++ b/drivers/serial/Kconfig
> @@ -90,9 +90,13 @@ config DRIVER_SERIAL_NS16550_OMAP_TTYS
>  	  used.
>  
>  config DRIVER_SERIAL_ATMEL
> -	depends on ARCH_AT91
> -	default y
> -	bool "Atmel serial driver"
> +	bool "Atmel USART support"
> +	depends on ARCH_AT91 || ARCH_MICROCHIP
> +	default y if ARCH_AT91

Just keep 'default y'?

Regards,
  Marco


> +	help
> +	  This enables the driver for the on-chip UARTs of Atmel/Microchip
> +	  AT91, SAMA5, and LAN969X SoC families. The driver supports device
> +	  tree configuration and clock framework integration.
>  
>  config DRIVER_SERIAL_NS16550_PCI
>  	depends on DRIVER_SERIAL_NS16550
> diff --git a/drivers/serial/atmel.c b/drivers/serial/atmel.c
> index 2dcb458fbd30..13747ef8201b 100644
> --- a/drivers/serial/atmel.c
> +++ b/drivers/serial/atmel.c
> @@ -442,8 +442,9 @@ static int atmel_serial_probe(struct device *dev)
>  }
>  
>  static const struct of_device_id __maybe_unused atmel_serial_dt_ids[] = {
> -	{ .compatible = "atmel,at91rm9200-usart" },
> +	{ .compatible = "microchip,lan9691-usart" },
>  	{ .compatible = "atmel,at91sam9260-usart" },
> +	{ .compatible = "atmel,at91rm9200-usart" },
>  	{ /* sentinel */ }
>  };
>  MODULE_DEVICE_TABLE(of, atmel_serial_dt_ids);
> -- 
> 2.47.3
> 
> 
> 

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