On Fri, Mar 09, 2018 at 05:35:46PM +0300, Dmitry Osipenko wrote: > On 08.03.2018 17:44, Thierry Reding wrote: > > On Thu, Mar 01, 2018 at 04:33:29PM +0300, Dmitry Osipenko wrote: > >> On 15.01.2018 13:56, Dmitry Osipenko wrote: > >>> On 10.01.2018 16:59, Dmitry Osipenko wrote: > >>>> Machine dies if HCLK, SCLK or EMC is disabled. Hence mark these clocks > >>>> as critical. > >>>> > >>>> Signed-off-by: Dmitry Osipenko <[email protected]> > >>>> Acked-by: Peter De Schrijver <[email protected]> > >>>> --- > >>>> > >>>> Change log: > >>>> v2: Fixed accidentally missed marking EMC as critical on Tegra30 and > >>>> Tegra124. Switched to a use of common EMC gate definition on > >>>> Tegra20 > >>>> and Tegra30. > >>>> > >>>> v3: Dropped marking PLL_P outputs as critical, because seems they are > >>>> not so critical. Although, I still haven't got a definitive > >>>> answer > >>>> about what exact HW functions are affected by the fixed-clocks. > >>>> Anyway it should be cleaner to correct the actual drivers. > >>> > >>> Stephen / Michael, would it be possible to schedule these patches for > >>> 4.16? My > >>> T20 and T30 devices aren't working without the 'critical clocks' patch. > >>> Things > >>> happen to work with the opensource u-boot, but not with the proprietary > >>> bootloader. It's probably not a big deal that out-of-tree devices are > >>> broken, > >>> although would be nice to have one problem less. > >> > >> Guys, is there anything I could do to get these patches in linux-next? > > > > I've picked these up into the for-4.17/clk branch in the Tegra tree. I > > already have that branch for the MBIST patches which are a dependency > > for the for-4.17/soc branch. > > Thank you very much! Could you please add stable tag to this ("Mark HCLK, SCLK > and EMC as critical") patch? It would be nice to have 4.16 unbroken eventually > for those who (have to) use downstream android bootloader. > > Cc: <[email protected]> # v4.16
Should we add a Fixes: line instead? That way it will get automatically
backported to all applicable stable releases.
This is a little complicated because the clocks were introduced in
different commits, most of them a very long time ago:
a7c8485a0ebbdce303c6709e208bb4fd08aff8ad (sclk)
2db04f16b589c6c96bd07df3f1ef8558bfdb6810 (emc)
76ebc134d45d7e6e1dc29fdcef4e539c5bc76eb8 (emc)
...
So Fixes: is perhaps not desirable after all, but then, so isn't tagging
v4.16 specifically because this is a bug since almost forever, so v4.16
is fairly arbitrary. Shouldn't we at least get this fixed for the last
couple of LTS releases?
Thierry
signature.asc
Description: PGP signature
