Re: [PATCH] arm/dt: tegra devicetree support

From: Grant Likely
Date: Wed Jul 20 2011 - 14:48:07 EST

On Wed, Jul 20, 2011 at 11:40:28AM -0700, Stephen Warren wrote:
> Grant Likely wrote at Wednesday, July 20, 2011 12:32 PM:
> > The compatible property here definitely represents the hardware
> > because it reflects the sound infrastructure on the harmony board.
> I can see that argument for "nvidia,harmony-sound".
> But "nvidia,tegra-wm8903" is pretty generic; I can certainly see there
> being Tegra 20 systems that use a WM8903 but are so different from either
> Harmony or anything supported by sound/soc/tegra/tegra_wm8903.c that the
> existing driver isn't applicable. And hence, there may be a different
> ASoC driver for such board(s), and hence choosing such a generic name as
> "tegra-wm8903" for Harmony/Seaboard's audio layout seems like it might
> cause problems in the future.
> I'm fine with such a generic name for the platform driver, since that name
> can fairly easily be modified just by editing the driver and the board file.
> But since *.dts files are at least logically separate from the kernel, such
> naming future-proofing is a little more important.

Sure, the tegra-wm8903 property can be dropped. If we start to see a
really well established pattern of the tegra paired with a wm8903,
then at that point we can define a compatible property for it and
document exactly what it means (document the boundaries and
assumptions that the compatible value requires).

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