linux-kernel - Re: [PATCH v3 01/12] misc: add driver for sequencer serial port

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Message-ID: <4CC18605.80007@ti.com>
Date:	Fri, 22 Oct 2010 08:39:33 -0400
From:	Cyril Chemparathy <cyril@...com>
To:	Andrew Morton <akpm@...ux-foundation.org>
CC:	"davinci-linux-open-source@...ux.davincidsp.com" 
	<davinci-linux-open-source@...ux.davincidsp.com>,
	"spi-devel-general@...ts.sourceforge.net" 
	<spi-devel-general@...ts.sourceforge.net>,
	"broonie@...nsource.wolfsonmicro.com" 
	<broonie@...nsource.wolfsonmicro.com>,
	"lrg@...mlogic.co.uk" <lrg@...mlogic.co.uk>,
	"dbrownell@...rs.sourceforge.net" <dbrownell@...rs.sourceforge.net>,
	"grant.likely@...retlab.ca" <grant.likely@...retlab.ca>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"rpurdie@...ys.net" <rpurdie@...ys.net>
Subject: Re: [PATCH v3 01/12] misc: add driver for sequencer serial port

On 10/21/2010 07:12 PM, Andrew Morton wrote:
>
> ...
>
>> +/* Register Access Helpers */
>> +static inline u32 ssp_read(struct ti_ssp *ssp, int reg)
>> +{
>> +	return __raw_readl(ssp->regs + reg);
>> +}
>> +
>> +static inline void ssp_write(struct ti_ssp *ssp, int reg, u32 val)
>> +{
>> +	__raw_writel(val, ssp->regs + reg);
>> +}
> 
> Why are the __raw functions used here?
> 

These registers are to be accessed native endian at all times, and
therefore the le32 conversion done otherwise is inappropriate.

Thanks for the feedback.  I will post an updated series with these changes.

Regards
Cyril.
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