[PATCH v4 1/3] soc: devicetree: bindings: Add Qualcomm RPM DT binding

pramod gurav
2014-07-17T16:04:37Z

On Thu, Jul 17, 2014 at 3:50 AM, Bjorn Andersson <bjorn@kryo.se> wrote:
>> On Wed, Jul 16, 2014 at 4:30 AM, Bjorn Andersson
>> <bjorn.andersson@sonymobile.com> wrote:
> [...]
>>> + rpm at 108000 {
>>> + compatible = "qcom,rpm-msm8960";
>>> + reg = <0x108000 0x1000>;
>>> + qcom,ipc = <&apcs 0x8 2>;
>>
>> Tried adding this but there is no reference to 'apcs' registers itself
>> in any dts.
>>
>> Without these changes rpm breaks hence not able to test SATA which needs rpm.
>>
>
> Hi Pramod,
>
> Unfortunately the ipc bits resides in a block that needs to be
> accesses by various device drivers so I had to extract the access; so
> you now need to reference it via a syscon handle and offset instead -
> as described above.
>
> The apcs node I used for testing this with looks like this:
>
> apcs: syscon at 2011000 {
> compatible = "syscon";
> reg = <0x2011000 0x1000>;
> };
>
> Enable CONFIG_MFD_SYSCON and put the dt snippet somewhere under soc
> and you should be good.
>

Thanks Bjorn. Did this and seen things working (sata atleast).

> Regards,
> Bjorn

--
Thanks and Regards
Pramod