Subject: [PATCH v2 04/16] serial: mvebu-uart: support probe of multiple ports

From: [email-masked] (Gregory CLEMENT)
Date: Fri, 13 Oct 2017 11:40:32 +0200

Hi Miquel,
 
 On ven., oct. 13 2017, Miquel Raynal <[email-masked]> wrote:

> -	port = &mvebu_uart_ports[0];
> +	/* Assume that all UART ports have a DT alias or none has */
> +	id = of_alias_get_id(pdev->dev.of_node, "serial");

You stil need to check the pdev->dev.of_node before calling
of_alias_get_id.

Once it will be fixed, you can add:

Acked-by: Gregory CLEMENT <[email-masked]>

Thanks,

Gregory

> +	if (!pdev->dev.of_node || id < 0)
> +		pdev->id = uart_num_counter++;
> +	else
> +		pdev->id = id;
> +
> +	if (pdev->id >= MVEBU_NR_UARTS) {
> +		dev_err(&pdev->dev, "cannot have more than %d UART ports\n",
> +			MVEBU_NR_UARTS);
> +		return -EINVAL;
> +	}
> +
> +	port = &mvebu_uart_ports[pdev->id];
>  
>  	spin_lock_init(&port->lock);
>  
> @@ -572,7 +588,7 @@ static int mvebu_uart_probe(struct platform_device *pdev)
>  	port->fifosize   = 32;
>  	port->iotype     = UPIO_MEM32;
>  	port->flags      = UPF_FIXED_PORT;
> -	port->line       = 0; /* single port: force line number to  0 */
> +	port->line       = pdev->id;
>  
>  	port->irq        = irq->start;
>  	port->irqflags   = 0;
> -- 
> 2.11.0
>

-- 
Gregory Clement, Free Electrons
Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.
http://free-electrons.com