[PATCH 11/14] ARM: OMAP2+: Add device-tree support for NOR flash

Ezequiel Garcia elezegarcia at gmail.com
Sat Mar 2 08:25:16 EST 2013


Hi Jon,

On Tue, Feb 26, 2013 at 2:30 PM, Jon Hunter <jon-hunter at ti.com> wrote:
[...]
> +static int gpmc_probe_nor_child(struct platform_device *pdev,
> +                               struct device_node *child)
> +{
> +       struct gpmc_settings gpmc_s;
> +       struct gpmc_timings gpmc_t;
> +       struct resource res;
> +       unsigned long base;
> +       int ret, cs;
> +
> +       if (of_property_read_u32(child, "reg", &cs) < 0) {
> +               dev_err(&pdev->dev, "%s has no 'reg' property\n",
> +                       child->full_name);
> +               return -ENODEV;
> +       }
> +
> +       if (of_address_to_resource(child, 0, &res)) {
> +               dev_err(&pdev->dev, "%s has malformed 'reg' property\n",
> +                       child->full_name);
> +               return -ENODEV;
> +       }
> +
> +       ret = gpmc_cs_request(cs, res.end - res.start, &base);

How about using resource_size() above?

BTW, I believe it's size = end - start + 1.

-- 
    Ezequiel


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