linux-kernel - Re: [PATCH] serial driver PMC MSP71xx, kernel linux-mips.git mast er

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Message-ID: <45B8BEC5.7010000@ru.mvista.com>
Date:	Thu, 25 Jan 2007 17:29:25 +0300
From:	Sergei Shtylyov <sshtylyov@...mvista.com>
To:	Marc St-Jean <Marc_St-Jean@...-sierra.com>
Cc:	Alan <alan@...rguk.ukuu.org.uk>, linux-kernel@...r.kernel.org,
	linux-serial@...r.kernel.org, linux-mips@...ux-mips.org
Subject: Re: [PATCH] serial driver PMC MSP71xx, kernel linux-mips.git mast
  er

Hello.

Marc St-Jean wrote:

>> > I could use both iotype and type with a test on each for the appropriate
>> > bug, what do you recommend?

>>    I think iotype would be enough. You can't pass type for platform 
>>devices anyway, IIRC (the thing I don't quite like).

> I just found that out the hard way, it get's overwritten during autoconfig* and
> ends up back at PORT_16550A.

> I'm now trying to use my own iotype = UPIO_DWAPB and I've added it to all cases
> that check for UPIO_MEM. However at boot time I'm getting:
> 	"serial8250: ttyS0 at *unknown* (irq = 27) is a 16550A".
> It looks like something outside of 8250.c must be checking for UPIO_MEM, I'm
> looking into it.

    Yeah, be sure to change serial_core.c as well (whereever you'll see 
UPIO_AU/TSI there)... Quite ugly. :-/

WBR, Sergei
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