Re: [PATCH] arm64: dts: renesas: enable HS400 on R-Car Gen3

[Simon Horman <horms@verge.net.au>]

On Thu, Jan 24, 2019 at 11:24:22AM +0100, Niklas Söderlund wrote:
> Hi Simon,
> 
> On 2018-12-18 11:24:13 +0100, Simon Horman wrote:
> > On Tue, Dec 18, 2018 at 10:07:13AM +0100, Geert Uytterhoeven wrote:
> > > Hi Niklas, Simon,
> > > 
> > > On Fri, Dec 7, 2018 at 9:52 PM Niklas Söderlund
> > > <niklas.soderlund@ragnatech.se> wrote:
> > > > On 2018-12-05 22:36:13 +0100, Niklas Söderlund wrote:
> > > > > On 2018-12-05 21:46:28 +0100, Wolfram Sang wrote:
> > > > > > On Fri, Nov 02, 2018 at 12:57:19PM +0100, Simon Horman wrote:
> > > > > > > On Thu, Nov 01, 2018 at 08:45:29PM +0100, Wolfram Sang wrote:
> > > > > > > >
> > > > > > > > > This patch have quiet a few dependencies I'm afraid, let me know if you
> > > > > > > > > wish to be notified once they all upstream. I don't think it's a good
> > > > > > > > > idea to pick this up before all dependencies are resolved.
> > > > > > > >
> > > > > > > > Yes, we should do that. Ping Simon once all dependencies are in next. It
> > > > > > > > is still fine to have this patch here in case people want to test. BTW
> > > > > > > > did you mention your branch somewhere where you collected all these
> > > > > > > > patches to make HS400 working/enabled?
> > > > > > > >
> > > > > > > > For this patch already:
> > > > > > > >
> > > > > > > > Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
> > > > > > > > Tested-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
> > > > > > >
> > > > > > > Thanks, I am marking this as deferred.
> > > > > > >
> > > > > > > Please repost or ping me once the dependencies are present in
> > > > > > > an rc release.
> > > > > >
> > > > > > Niklas, are we done now, so we can ask Simon to pick up the DTS change?
> > > > > >
> > > > >
> > > > > Almost :-)
> > > > >
> > > > > I'm  waiting for Geert to take the SD quirk patches before pinging Simon
> > > > > to take this one. Spoke to him today about that so I hope it will not be
> > > > > to long.
> > > > >
> > > >
> > > > I just confirmation that the clock patches have been pulled into
> > > > clk-next so this patch is ready to be consumed by you Simon.
> > > >
> > > > Would it be possible to get this in this cycle or is it to late? I know
> > > > you wished to close your tree for v4.21 at the end of this week which it
> > > > technically is now ;-)
> > > 
> > > This patch seems to depend on both the clock patches, and mmc/next.
> > > Else the kernel hangs with an rcu check :-(
> > > 
> > > Hence please drop, and requeue in renesas-devel after the release of v4.21-rc1.
> > 
> > Thanks, dropped and marked as deferred.
> > 
> > Niklas, please repost or ping me once the dependencies are present in an RC
> > release.
> 
> Ping.

Hi Niklas,

with this applied on top of renesas-devel-20190124-v5.0-rc3
I see eMMC initialised in

* HS200 mode on Salvator-X/M3-W  ES1.0
* HS400 mode on Salvator-XS/H3   ES2.0
* HS400 mode on Salvator-XS/M3-N ES1.0

I believe that is expected and have gone ahead and applied this patch.