Re: [PATCH] ARM: fix DEBUG_UART_PHYS/VIRT issue when modifying DEBUG_LL output

From: Thomas Petazzoni
Date: Wed Jun 17 2015 - 08:47:12 EST


On Tue, 13 Jan 2015 11:37:48 +0100, Boris Brezillon wrote:
> The DEBUG_UART_PHYS/VIRT value can only be automatically set once
> (automatically means set from the DEBUG_<SOC_ID>_<UART_ID> option), which
> prevents re-configuring the earlyprintk output for another platform once
> the DEBUG_LL output has been selected.
> Add a new boolean option (DEBUG_CUSTOM_UART_ADDR) enabling custom phys and
> virt address setting (configured through DEBUG_CUSTOM_UART_PHYS/VIRT
> options), and make DEBUG_UART_PHYS/VIRT hidden so that they will always be
> set from one of the 'default' definitions, and thus will be overwritten
> each time you change the DEBUG_LL output.
> Signed-off-by: Boris Brezillon <boris.brezillon@xxxxxxxxxxxxxxxxxx>

What is the status of this patch? It would actually be quite useful
when switching back and forth between different DEBUG_LL configurations.

Russell, what do you think of the proposed approach?


Thomas Petazzoni, CTO, Free Electrons
Embedded Linux, Kernel and Android engineering
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