linux-kernel - Re: [PATCH 02/16] tty: serial: 8250

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Date:	Mon, 29 Sep 2014 15:39:18 +0200
From:	Sebastian Andrzej Siewior <bigeasy@...utronix.de>
To:	Frans Klaver <frans.klaver@...ns.com>
Cc:	linux-serial@...r.kernel.org, tony@...mide.com,
	gregkh@...uxfoundation.org, linux-kernel@...r.kernel.org,
	balbi@...com, linux-omap@...r.kernel.org,
	mika.westerberg@...ux.intel.com,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 02/16] tty: serial: 8250_core: add run time pm

* Frans Klaver | 2014-09-29 11:46:20 [+0200]:

>On Wed, Sep 10, 2014 at 09:29:57PM +0200, Sebastian Andrzej Siewior wrote:
>> +/*
>> + * This two wrapper ensure, that enable_runtime_pm_tx() can be called more than
>
>These two wrappers ensure that enable_runtime_pm_tx() ...
fixed

>> @@ -1469,7 +1531,12 @@ void serial8250_tx_chars(struct uart_8250_port *up)
>>  
>>  	DEBUG_INTR("THRE...");
>>  
>> -	if (uart_circ_empty(xmit))
>> +	/*
>> +	 * With RPM enabled, we have to wait once the FIFO is empty before the
>
>s,once,until,? Or do I not understand the sentence correctly?
No, you understand it correct. "until" is the better word here.

Sebastian
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