[PATCH v2 04/11] mfd:stixxxx-syscfg: Add ST System Configuration support.

Srinivas KANDAGATLA srinivas.kandagatla at st.com
Mon Jun 10 09:52:38 EDT 2013


On 10/06/13 14:16, Linus Walleij wrote:
> On Mon, Jun 10, 2013 at 11:22 AM, Srinivas KANDAGATLA
> <srinivas.kandagatla at st.com> wrote:
> 
>> This mfd driver provides higher level inialization routines for various
>> IPs like Ethernet, USB, PCIE, SATA and so on. Also it provides way to
>> get to syscfg registers via standard regmap api which is usefull for
>> drivers like pinctrl.
>>
>> This patch adds support to ST System Configuration registers, which can
>> be configured by the drivers.
>>
>> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla at st.com>
>> CC: Stuart Menefy <stuart.menefy at st.com>
>> CC: Stephen Gallimore <stephen.gallimore at st.com>
>> CC: Linus Walleij <linus.walleij at linaro.org>
>> CC: Mark Brown <broonie at kernel.org>
> 
> What is this driver doing that drivers/mfd/syscon.c is not already
> doing?
As of now, the driver is very much similar to syscon + some additional
functionality, but we are planning to use this file to add higher level
functions to configure different IPs like ethernet, usb, power, reset
and so on which are very much specific to ST System Configuration Registers.

Thanks,
srini
> 
> I just get the feeling that you're reinventing the wheel here.
> 
> Yours,
> Linus Walleij
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