On 12.10.2013 01:43, Stephen Warren wrote: > On 10/07/2013 02:34 AM, Thierry Reding wrote: >> The gr2d hardware in Tegra114 is compatible with that of Tegra20 and >> Tegra30. No functionaly changes are required. > Similarly here, if the HW is 100% backwards-compatible, there's no need > to add compatible values to the driver. We've used this mechanism for attaching a per-hw-version data structure in match table to accomodate differences in how the hardware is power gated, reset, booted, some per-soc performance related changes etc. It's also used in staging features for new chips, such as disabling power features when they're not working/verified yet. Upstream driver is not yet in a state where that is relevant. With this, would we still be able to do that with match table? It sounds like we could, because we can still (even with multiple compatible properties) add separate entries in match table and I guess the compatible properties matched in order. Terje -- 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
