Re: [PATCH v6 1/2] platform: Add driver for RAVE Supervisory Processor

[Pavel Machek <pavel@ucw.cz>]

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Hi!

> >> +                 * 9  -> Illegal Trap
> >> +                 * 10 -> Unknown
> >> +                 * 11 -> Crew Panel Requested
> >
> > Anyway... If you move management chip to .. I don't know, i2c, the
> > path would change. Also it would be different path on N900. Userland
> > should not have to deal with this.
> >
> > And... this should really be string, as the list will need to grow on
> > different hardware.
> 
> I think we have a misunderstanding, with this part of the patch set I
> am not trying to propose a generic ABI that would be useful for any
> other driver but this one. Hence the lack of concern for different

Yes, but sorry, that's no-go.  Kernel should hide differences between
different machiens, and it should be rather easy in this case.

> hardware paths (it's not going to change for this device) and device
> specific codes instead of generic strings. I can see how my choice of
> generic name such as "reset_reason" might suggest that, so I apologize
> for any confusion I might have caused. If said generic name is
> unacceptable I can change it to "rave_reset_reason" or something
> similar and if that is undesirable as well I am happy to drop this
> part of the patch and re-visit this later.

Ok, can we do the re-visit thing? You may want to contact these people:

Date: Wed, 30 Aug 2017 12:59:55 +0200
From: Pavel Machek <pavel@ucw.cz>
To: Vadim Pasternak <vadimp@mellanox.com>
Cc: lee.jones@linaro.org, robh+dt@kernel.org,
devicetree@vger.kernel.org,
        j.anaszewski@samsung.com, rpurdie@rpsys.net,
	linux-leds@vger.kernel.org,
	        jiri@resnulli.us, gregkh@linuxfoundation.org,
		platform-driver-x86@vger.kernel.org
Subject: Re: [patch v4 1/2] mfd: Add Mellanox regmap core driver

They are currently trying to add driver, including

>  Cause of reset nodes:
>  - cpu_kernel_panic
>  - cpu_shutdown
>  - bmc_warm_reset

...which sounds very similar to what you are doing.
		
> > Plus we'll really need better explanations. What is difference between
> > "normal power off" and "host requested"?
> >
> 
> Short answer: I don't know, since this is as much information that ICD
> for that device gave me.
> 
> Long answer:  It probably can be discerned from the source code of the
> firmware/schematic as well as by bothering the right people, but since
> I get a feeling that this attribute is not really desirable in its
> current from, I'll punt doing that.

Ok.

> >> +             The following values are valid:
> >> +                 * 0  -> SD card
> >> +                 * 1  -> eMMC
> >> +                 * 2  -> SPI NOR
> >> +
> >> +             NOTE: Setting boot source on RDU1 hardware is
> >> +             currently not implemented
> >
> > Same comments apply here.
> 
> Yep, same comment for me as well :-)

Ok :-).

Best regards,
							Pavel

-- 
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