Re: [PATCH v3 3/3] ARM: dts: atlas7: use general dt-binding for hwspinlock

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2015-05-29 23:50 GMT+08:00 Bjorn Andersson <bjorn@xxxxxxx>:
> On Thu, May 28, 2015 at 2:30 PM, Suman Anna <s-anna@xxxxxx> wrote:
> [..]
>>>                               reg = <0x13240000 0x00010000>;
>>
>> An unrelated question here, why the reg is same for all the child nodes
>> of the  parent ipc node? If this is partitioned properly, then the
>> driver can be simplified a bit by using platform_get_resource and
>> devm_ioremap_resource?
>>
>
> Good catch Suman, I missed that.
>
> Barry, if these blocks represents various functionalities of the same
> hw block then you should consider moving them to be part of a
> simple-mfd.

the hwspinlock and the IPC, which works for kicking interrupts between
multiple cores in the SoC,  are in one bus node but there is no
overlapping register.
hwspinlock:
begin from 0x13240000 + 0x400
IPC:
begin from 0x13240000, and end at begin from 0x13240000 + 0x400 - 0x4 ?

so i guess we can refine the dts memory region to avoid MFD?

>
> Regards,
> Bjorn

-barry
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