Re: [RFC v2 1/3] firmware: arm_scmi: Add SCMI v3.2 pincontrol protocol basic support

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On Fri, May 05, 2023 at 08:52:03PM +0100, Cristian Marussi wrote:
> On Wed, Apr 26, 2023 at 01:26:37PM +0000, Oleksii Moisieiev wrote:
> > scmi: Introduce pinctrl SCMI protocol driver
> > 
> > Add basic implementation of the SCMI v3.2 pincontrol protocol
> > excluding GPIO support. All pinctrl related callbacks and operations
> > are exposed in the include/linux/scmi_protocol.h
> > 
> 
> Hi Oleksii,
> 
> Thanks for this.
> 
> I tried out this in an emulated setup and found just a minor issue from
> the spec/functional point of view...then I reworked the extended names
> support using a modified hops->extended_name_get helper (as said the core
> SCMI support needed a small modification to support PINCTRL): I'll reply
> to this mail thread with such core SCMI modification patch, so you can
> include this patch of mine in your next V3 and use it in your series.
> 
> Moreover, given that I wanted to test such rework of mine and a bunch
> of other cleanups I did (as detailed down below), and it seemed silly
> to throw all away just to then having to detail all to you, I'll also
> include in another distinct reply the raw diff of what I changed in
> your series to use the new extended_name support and a few other cleanups,
> so that, if you want, you can just quickly merge that into your V3 patch
> (of course if you like it and tests fine also for you...)...these are
> small changes, if you take it, no need to bother with authorship and
> attribution from my point of view.
> 

Hi Cristian,

Thank you for the patches. I've applied them and tested with powerpc,
mx68 and clang environments (as test-robot complained about).

> > Signed-off-by: Oleksii Moisieiev <oleksii_moisieiev@xxxxxxxx>
> > ---
> >  MAINTAINERS                           |   6 +

[snip]

> >  SYSTEM RESET/SHUTDOWN DRIVERS
> >  M:	Sebastian Reichel <sre@xxxxxxxxxx>
> >  L:	linux-pm@xxxxxxxxxxxxxxx
> > diff --git a/drivers/firmware/arm_scmi/Makefile b/drivers/firmware/arm_scmi/Makefile
> > index b31d78fa66cc..071ac65f22b9 100644
> > --- a/drivers/firmware/arm_scmi/Makefile
> > +++ b/drivers/firmware/arm_scmi/Makefile
> > @@ -3,6 +3,7 @@ scmi-bus-y = bus.o
> >  scmi-core-objs := $(scmi-bus-y)
> >  
> >  scmi-driver-y = driver.o notify.o
> > +
> 
> Do not add spurios lines.
> 

Thanks, removed

> >  scmi-driver-$(CONFIG_ARM_SCMI_RAW_MODE_SUPPORT) += raw_mode.o
> >  scmi-transport-$(CONFIG_ARM_SCMI_HAVE_SHMEM) = shmem.o
> >  scmi-transport-$(CONFIG_ARM_SCMI_TRANSPORT_MAILBOX) += mailbox.o
> > @@ -10,7 +11,7 @@ scmi-transport-$(CONFIG_ARM_SCMI_TRANSPORT_SMC) += smc.o
> >  scmi-transport-$(CONFIG_ARM_SCMI_HAVE_MSG) += msg.o
> >  scmi-transport-$(CONFIG_ARM_SCMI_TRANSPORT_VIRTIO) += virtio.o
> >  scmi-transport-$(CONFIG_ARM_SCMI_TRANSPORT_OPTEE) += optee.o
> > -scmi-protocols-y = base.o clock.o perf.o power.o reset.o sensors.o system.o voltage.o powercap.o
> > +scmi-protocols-y = base.o clock.o perf.o power.o reset.o sensors.o system.o voltage.o powercap.o pinctrl.o
> >  scmi-module-objs := $(scmi-driver-y) $(scmi-protocols-y) $(scmi-transport-y)
> >  

I've applied patches you provided and made a small fixes. I'm going to
make patch:
"firmware: arm_scmi: Add optional flags to extended names helper"
as a separate and squach "Misc Fixes and refactor" to my changes in V3 if you
don't mind.

-- Oleksii



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