Re: [PATCH 0/2] mmc: J7200: Add support for higher speed modes in MMCSD subsystems

From: Nishanth Menon
Date: Mon Jan 25 2021 - 08:57:08 EST


On 19:12-20210125, Aswath Govindraju wrote:
> Hi Nishanth,
>
> On 22/01/21 11:36 pm, Nishanth Menon wrote:
> > On 21:54-20210122, Aswath Govindraju wrote:
> >> The following series of patches
> >> - adds support for HS200 and HS400 speed modes in MMCSD0 subsystem
> >> - adds support for UHS-I speed modes in MMCSD1 subsystem
> >>
> >> Aswath Govindraju (2):
> >> arm64: dts: ti: k3-j7200-main: Add support for HS200 and HS400 modes
> >> in MMCSD0 subsystem
> >> arm64: dts: ti: k3-j7200-main: Add support for UHS-I modes in MMCSD1
> >> subsystem
> >
> >
> > Just a curious couple of questions:
> > Does squashing both the patches create a problem for understanding or a
> > later bisect? I kind of thought these mostly go hand in hand between the
> > instances, am I mistaken?
> >
>
> Yes, they can be squashed. I post a respin doing this.

Thanks.

>
> > Are there any otap delay params update needed or the defaults are good
> > to go?
> >
>
> The otap values are already up-to-date with the data sheet and don't
> need updation.

Thanks for the clarification.

>
> > Will also help to provide some verification log along with this.
> >
>
> May I know what sort of logs would be best to provide. Would enumeration
> logs during boot suffice ?
>
> Like this,
> https://pastebin.ubuntu.com/p/v9NRV7GwMw/ ?

That just says we detected the cards, no?
I thought we had tests around this? Something including /sys/kernel/debug/mmc*/ios

Something that demonstrates that this actually runs at the claimed
speeds? That would be nice on linux-next, if possible as well..

--
Regards,
Nishanth Menon
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