Hi Arnd,
On Thu, Feb 06, 2014 at 11:37:05PM +0800, Arnd Bergmann wrote:
> On Thursday 06 February 2014, Pratyush Anand wrote:
> > +static int spear1310_pcie_miphy_exit(struct st_miphy40lp_priv *phypriv)
> > +{
> > + u32 mask;
> > +
> > + switch (phypriv->id) {
> > + case 0:
> > + mask = SPEAR1310_PCIE_CFG_MASK(0);
> > + break;
> > + case 1:
> > + mask = SPEAR1310_PCIE_CFG_MASK(1);
> > + break;
> > + case 2:
> > + mask = SPEAR1310_PCIE_CFG_MASK(2);
> > + break;
> > + default:
> > + return -EINVAL;
> > + }
> > +
> > + regmap_update_bits(phypriv->misc, SPEAR1310_PCIE_SATA_CFG,
> > + SPEAR1310_PCIE_CFG_MASK(phypriv->id), 0);
> > +
> > + regmap_update_bits(phypriv->misc, SPEAR1310_PCIE_MIPHY_CFG_1,
> > + SPEAR1310_PCIE_SATA_MIPHY_CFG_PCIE_MASK, 0);
> > +
> > + return 0;
> > +}
>
> hmm, you set the mask based on the id, but then use the macro below
> and ignore the mask?
Blunder, no need of switch case here :(
Will correct.
>
> > +
> > +static int pcie_miphy_init(struct st_miphy40lp_priv *phypriv)
> > +{
> > + if (of_device_is_compatible(phypriv->np, "st,spear1340-miphy"))
> > + return spear1340_pcie_miphy_init(phypriv);
> > + else if (of_device_is_compatible(phypriv->np, "st,spear1310-miphy"))
> > + return spear1310_pcie_miphy_init(phypriv);
> > + else
> > + return -EINVAL;
> > +}
> > +
> > +static int pcie_miphy_exit(struct st_miphy40lp_priv *phypriv)
> > +{
> > + if (of_device_is_compatible(phypriv->np, "st,spear1340-miphy"))
> > + return spear1340_pcie_miphy_exit(phypriv);
> > + else if (of_device_is_compatible(phypriv->np, "st,spear1310-miphy"))
> > + return spear1310_pcie_miphy_exit(phypriv);
> > + else
> > + return -EINVAL;
> > +}
>
> I think it's better to make this code table-driven. Rather than checking
> 'of_device_is_compatible()', it's much easier to add a .data field to
> the of_device_id array that describes the PHY. You can use .data to
> point to a structure containing per-device function pointers or
> (better) values and offsets to be used.
Sounds a better idea. will reduce code size a lot. Thanks.
Regards
Pratyush
>
> Arnd
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