Re: [PATCH 1/3] dt-bindings: power: rpmpd: Add Generic RPM(h) PD indexes

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On 7/6/2023 8:52 PM, Konrad Dybcio wrote:
On 6.07.2023 17:15, Rohit Agarwal wrote:
On 7/6/2023 8:30 PM, Konrad Dybcio wrote:
On 6.07.2023 16:47, Rohit Agarwal wrote:
On 7/6/2023 8:00 PM, Pavan Kondeti wrote:
On Thu, Jul 06, 2023 at 06:19:51PM +0530, Rohit Agarwal wrote:
Add Generic RPM(h) Power Domain indexes that can be used
for all the Qualcomm SoC henceforth.

Signed-off-by: Rohit Agarwal <quic_rohiagar@xxxxxxxxxxx>
Suggested-by: Konrad Dybcio <konrad.dybcio@xxxxxxxxxx>
Does it make sense to give this link [1] so that we know what is
Konrad's suggestion and the discussion around it?

[1]
https://lore.kernel.org/all/0d468d08-6410-e424-b4f3-5245cdb0334a@xxxxxxxxxx/
Yes, could be given in the cover letter.
---
[...]

+#define RPMPD_VDDMD        22
+#define RPMPD_VDDMD_AO        23
+#define RPMPD_LPICX_VFL        24
+#define RPMPD_LPIMX_VFL        25
+
How did you come up with this list? A union of all SoCs supported by
RPMh driver?
Yes, union of all the SoCs and arranged based on frequencies of usage.
The latter part is very thoughtful, thanks for taking that into account.

That said (and I really don't wanna be picky here, I'm just coming up with
ideas a bit later than I'd like to).. Perhaps this patch should be limited
to RPMhPD [1] and the definitions could be moved to a new binding, so:
So should we not update anything in this old binding and completely move to the new bindings?
Yes, create qcom,rpmhpd.h and add new common entries there and let this
ship sink

rpmhpd.h?
Not even rpmpd_* bindings?
Again, due to [1], let's not touch that for now. We'll worry about that
when somebody will try to add a new entry to that driver.
Yes.

Thanks,
Rohit.

Konrad
Thanks,
Rohit.
include/dt-bindings/power/qcom,rpmhpd.h
// this way we don't have to add RPMHPD_
#define CX    0
Ok, will remove this as well.
which would result in us being able to do:

#include ....rpmhpd.h
[...]
power-domains = <&rpmhpd CX>;

in the device tree

which is even more concise!
Yes

Thanks,
Rohit.

[1] The old RPM SMD platforms have some duplications in the names..
      No point in duplicating that. The oldest entries remember 2013 so
      it's easy to see how we had some dirt build up there.

Konrad
Thanks,
Rohit.
    /* SA8775P Power Domain Indexes */
    #define SA8775P_CX    0
    #define SA8775P_CX_AO    1
--
2.7.4

Thanks,
Pavan



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