On 15 May 2014 13:12, Thierry Reding <thierry.reding@xxxxxxxxx> wrote: > On Thu, May 15, 2014 at 10:49:37AM +0530, Rahul Sharma wrote: >> Hi Thierry, >> >> On 15 May 2014 03:44, Thierry Reding <thierry.reding@xxxxxxxxx> wrote: >> > On Thu, May 15, 2014 at 12:47:21AM +0530, Rahul Sharma wrote: > [...] >> >> +#define HDMI_PHY 0 >> >> +#define DAC_PHY 1 >> >> +#define ADC_PHY 2 >> >> +#define PCIE_PHY 3 >> >> +#define SATA_PHY 4 >> > >> > Perhaps these should be namespaced somehow to avoid potential conflicts >> > with other PHY providers? >> >> How about XXX_SIMPLE_PHY? > > The indices are specific to the Exynos PHY device, so why not > PHY_EXYNOS_SIMPLE_XXX (or any variation thereof)? This looks ok. I will use that. > >> >> +#define PHY_NR 5 >> > >> > I'm not sure that this belongs here either. It's not a value that will >> > ever appear in a DT source file. >> >> I want it to grow along with new additions in the phy list else >> catastrophic. This will look unrelated in driver. > > But this is in no way growing automatically as it is. Whoever adds a new > type of PHY will need to manually increment this define. Furthermore the > driver will need to be updated to cope with this anyway. Not automatically. What I meant was If keeping it at end of the list, it is not possible that somebody skip the updation of PHY_NR when adding a new phy type. If I leave a comment at the end of the list to update PHY_NR (after moving it to driver), that also serves the purpose. > > I think this is even a reason to have this only in the driver. Otherwise > you could have a situation where somebody upgrades the binding (and this > file along with it) but not update the driver with the necessary support. > But the driver will still pick up the PHY_NR change and will accept the > new PHY type as valid, even though it has no code to handle it. If you > have this in the driver, however, then as long as the driver has not yet > been updated it will reject requests for the new PHY type. And that's > exactly what it should be doing since it doesn't know how to handle it. hmn...Ok. Regards, Rahul Sharma > > Thierry -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
