[PATCH 1/6] ata: ahci: add AHCI support for Berlin SoCs

Rob Herring robherring2 at gmail.com
Tue Apr 22 11:54:33 PDT 2014


On Tue, Apr 22, 2014 at 1:47 PM, Rob Herring <robherring2 at gmail.com> wrote:
> On Tue, Apr 22, 2014 at 10:38 AM, Antoine Ténart
> <antoine.tenart at free-electrons.com> wrote:
>> Add support for the Berlin SoCs AHCI SATA controller allowing to
>> interface with devices like external hard drives.

One more thing.

>> +       nports = readl(hpriv->mmio + HOST_PORTS_IMPL);
>> +
>> +       /* force_map is modified only if the property is found */
>> +       of_property_read_u32(np, "marvell,force-port-map", &force_map);

This property does not appear to be documented.

>> +       if (force_map)
>> +               nports = force_map;

You don't need this as your comment says, you can just do:

of_property_read_u32(np, "marvell,force-port-map", &nports);

nports will only be changed if property is present.

Rob



More information about the linux-arm-kernel mailing list