Re: [PATCH V1 1/2] mfd: tps65910: use regmap for device register access.

[Laxman Dewangan <ldewangan-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>]

On Thursday 09 February 2012 05:33 PM, Mark Brown wrote:
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> On Thu, Feb 09, 2012 at 05:29:38PM +0530, Laxman Dewangan wrote:
>
>> I am working on mfd/tps65910.c and function is:
>> static int tps65910_i2c_write(struct tps65910 *tps65910, u8 reg,
>>                                     int bytes, void *src)
>> All your feedback will help me to improve my next two mfd/pmic
>> drivers which I am planning to upstream...
> Yeah, I know that's the i2c_write() function but all the callers I
> noticed were calling it with bytes set to 1.
>
Yes, currently all callers are calling with 1 byte but when we will add 
rtc (which is not there currently), at that time, it may call multibyte 
read/write.
The interface is such that it can support multi-byte transfer. And when 
using for single byte transfer (currently) and if it is cached, 
regmap_raw_write() is creating warnings and that's why I broken transfer 
in multi-transfer in tps65910.c which was not a good idea..


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