Messages in this thread |  | | Date | Wed, 12 Nov 2014 11:14:40 -0700 | From | Stephen Warren <> | Subject | Re: [PATCH] ARM: dts: tegra: move serial aliases to per-board |
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On 11/12/2014 05:20 AM, Thierry Reding wrote: > On Tue, Nov 11, 2014 at 12:49:30PM -0800, Olof Johansson wrote: >> There are general changes pending to make the /aliases/serial* entries >> number the serial ports on the system. On tegra, so far the ports have been >> just numbered dynamically as they are configured so that makes them change. >> >> To avoid this, add specific aliases per board to keep the old numbers. This >> allows us to change the numbering by default on future SoCs while keeping the >> numbering on existing boards. ... > I have applied this to the for-3.19/dt branch. So for anything that is > post Tegra124 the new rule shall be to add aliases to the SoC .dtsi and > then use consistent numbering of UART ports across boards? > > The alternative is to remain consistent with what this patch does, which > would be to make the serial port numbering a property of the board. That > doesn't sound too bad to me either since it'll hide all the unused ports > on a given board.
For new SoCs, I think board-specific aliases would make most sense. That would be consistent with this patch. The only question I had was for existing SoCs, should we make the switch this patch does, or leave the aliases inactive there? New SoCs should use more sensible aliases.
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