Thread (4 messages) 4 messages, 2 authors, 2016-02-17

[PATCH v2] serial: earlycon: rework common framework for earlycon declarations

From: Masahiro Yamada <hidden>
Date: 2016-02-12 16:31:02
Also in: linux-arch, linux-devicetree, linux-serial, lkml

Hi Peter,


2016-02-13 0:17 GMT+09:00 Peter Hurley [off-list ref]:
On 02/12/2016 02:36 AM, Masahiro Yamada wrote:
quoted
Commit 71f50c6d9a22 ("of: drop symbols declared by _OF_DECLARE() from
modules") fixed the link error introduced by commit b8d20e06eaad
("serial: 8250_uniphier: add earlycon support").

After commit 2eaa790989e0 ("earlycon: Use common framework for
earlycon declarations") was applied, the link error came back
because the commit reworked OF_EARLYCON_DECLARE() to not use
_OF_DECLARE().
What link error are you getting?
The combination of CONFIG_SERIAL_8250_CONSOLE=y
and CONFIG_SERIAL_8250_UNIPHIER=m causes a link error.


quoted
This commit reworks OF_EARLYCON_DECLARE() again based on
_OF_DECLARE().  My motivations are:

 - Fix the link error in a generic way (without patching
   drivers/tty/serial/8250/8250_uniphier.c)

 - Delete struct earlycon_id.  This struct is re-inventing the wheel;
   the fields "name", "compatible", "setup" can be implemented in
   struct of_device_id as other frameworks do.
This patch basically reverts the common framework.
What happens when not building with OF? Does it still declare the
earlycon table?
Ah, I missed this.  (sigh)

Earlycon must still work without OF.
My way only works with OF.

I really screwed up.  Sorry.

Just disregard this patch.





-- 
Best Regards
Masahiro Yamada
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