linux-kernel - Re: [PATCH 00/16 v9] omap 8250 based uart + DMA

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Date:	Mon, 15 Sep 2014 13:50:56 +0200
From:	Sebastian Andrzej Siewior <bigeasy@...utronix.de>
To:	Tony Lindgren <tony@...mide.com>
CC:	linux-serial@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-omap@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	balbi@...com, gregkh@...uxfoundation.org
Subject: Re: [PATCH 00/16 v9] omap 8250 based uart + DMA

On 09/13/2014 12:43 AM, Tony Lindgren wrote:
> * Sebastian Andrzej Siewior <bigeasy@...utronix.de> [140910 12:30]:
>> the diff of v8…v9 is small:
>> - rebased on top's of Greg's tty-next branch
>> - fixed #10 where we might have THRE interrupt enabled for longer than
>>   needed
>> - re-did register setup in #10. Before this "less file" could freeze the
>>   am335x-evm.
> 
> FYI, looks like merging in your uart_v9 branch for testing
> with my hwmod changes now fails to produce RX characters on omap3.
> 
> The device wakes up just fine to the wake-up interrupt, and then
> serial8250_handle_irq() gets called, but I'm not seeing anything
> in the console getting printed out. It's like all the RX characters
> are getting lost instead of just the first one. The RX characters
> work fine when the system is running.
> 
> So it seems there's been some kind of regression since v8?

I changed the restore function the fix the am335x-evm + less "freeze".
And now we have this. So let me search…

> Regards,
> 
> Tony
> 

Sebastian
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