[PATCH v2 1/7] serial: pxa: add OF support

[arnd@arndb.de (Arnd Bergmann)]

On Monday 05 March 2012, Haojian Zhuang wrote:

>  
> +#define PXA_NAME_LEN		8
> +
>  struct uart_pxa_port {
>  	struct uart_port        port;
>  	unsigned char           ier;

Why didn't you just add a field here with that length?

> @@ -781,6 +784,39 @@ static const struct dev_pm_ops serial_pxa_pm_ops = {
>  };
>  #endif
>  
> +static struct of_device_id serial_pxa_dt_ids[] = {
> +	{ .compatible = "mrvl,pxa-uart", },
> +	{ .compatible = "mrvl,mmp-uart", },
> +	{}
> +};
> +MODULE_DEVICE_TABLE(of, serial_pxa_dt_ids);

This one should have an #ifdef CONFIG_OF

> +#ifdef CONFIG_OF
> +static int serial_pxa_probe_dt(struct platform_device *pdev,
> +			       struct uart_pxa_port *sport)
> +{

While this one does not need it: it will already compile to nothing
if you check the error value correctly.

> +	sport->name = kzalloc(PXA_NAME_LEN, GFP_KERNEL);
> +	if (!sport->name) {
> +		ret = -ENOMEM;
> +		goto err_clk;
>  	}

No need for this allocation if you put the name into uart_pxa_port
as a member instead of a pointer.

> +		.of_match_table = serial_pxa_dt_ids,
>  	},
>  };

		.of_match_table = of_match_ptr(serial_pxa_dt_ids),

	Arnd