Re: [rtc-linux] [PATCH 5/6] rtc: max77620: add support for max77620/max20024 RTC driver

[Laxman Dewangan <ldewangan@nvidia.com>]

On Friday 08 January 2016 07:06 PM, Mark Brown wrote:
> * PGP Signed by an unknown key
>
> On Fri, Jan 08, 2016 at 06:34:29PM +0530, Laxman Dewangan wrote:
>
>> If we get the parent device, regmap handle and interrupt number from mfd
>> core independent of the PMIC (MAX77620 or MAX77686), then same driver can be
>> used here.
>> Two way which I can think of here:
> Parent device is just dev->parent, you can use dev_get_regmap() to get a
> regmap given a struct device and you can use platform resources to pass
> the interrupts to the children from the MFD (there's some examples,
> wm831x is one).
>
>

I think it should work with named regmap. mfd whould init regmap with 
name and rtc driver should ask with same name.

I saw three drivers which looks same:
rtc-max77620.c (new from me) and already available rtc-max77686.c, 
rtc-max77802.c

Seems I can develop IP based rtc driver as rtc-max77xxx.c


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