[Acked/cmt] [SRU][RFC][Utopic] Pull Request: powerpc: backport AST graphic driver updates for OpenPower

[Andy Whitcroft]

On Mon, Mar 16, 2015 at 12:56:35PM -0400, Joseph Salisbury wrote:
> On 03/05/2015 02:08 PM, Joseph Salisbury wrote:
> > A test build was performed for powerpc without any failures.  However,
> > testing on actual hardware was not performed yet, but testing was requested in the bug.  
> >
> > A test kernel was posted for testing here:
> > http://kernel.ubuntu.com/~jsalisbury/lp1420627/
> >
> > Requesting review and feedback on these patches.
> >
> >
> > The following changes since commit e093858a13f30d8b981b5e9a750bf3b1ff60d819:
> >
> >   UBUNTU: Ubuntu-3.16.0-32.42 (2015-03-03 13:01:54 -0600)
> >
> > are available in the git repository at:
> >
> >   zinc.canonical.com:/srv/kernel.ubuntu.com/git/jsalisbury/bugs/lp1420627/ubuntu-utopic.git 
> >
> > for you to fetch changes up to 13a15d170a08023f9f16ed6ab3086b08e59f9b30:
> >
> >   [PATCH 8/8] drm/ast: Cleanup analog init code path (2015-03-05 13:04:49 -0500)
> >
> > ----------------------------------------------------------------
> > Benjamin Herrenschmidt (5):
> >       drm/ast: Try to use MMIO registers when PIO isn't supported
> >       drm/ast: POST chip at probe time if VGA not enabled
> >       drm/ast: Properly initialize P2A base before using it in ast_init_3rdtx()
> >       drm/ast: Don't assume DVO enabled means SIL164 on uninitialized chips
> >       drm/ast: Cleanup analog init code path
> >
> > Dave Airlie (1):
> >       drm/ast: switch to using CACHED by default for sysram
> >
> > Y.C. Chen (2):
> >       drm/ast: Add missing entry to dclk_table[]
> >       drm/ast: Add reduced blanking modes for wide screen mode
> >
> >  drivers/gpu/drm/ast/ast_dp501.c  | 38 +++++++++++++++----
> >  drivers/gpu/drm/ast/ast_drv.h    |  8 +++-
> >  drivers/gpu/drm/ast/ast_main.c   | 79 ++++++++++++++++++++++++++++++++++++----
> >  drivers/gpu/drm/ast/ast_mode.c   | 42 ++++++++++++++++-----
> >  drivers/gpu/drm/ast/ast_post.c   | 23 +++++++-----
> >  drivers/gpu/drm/ast/ast_tables.h | 39 ++++++++++++--------
> >  drivers/gpu/drm/ast/ast_ttm.c    |  4 +-
> >  7 files changed, 182 insertions(+), 51 deletions(-)
> >
> We now have some testing results with this patch set:
> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1420627/comments/9

Ugg, this is a pretty large patch set.  That said reading the patches
they are pretty small individually, and all self contained to this one
driver and it is that driver that they aim to fix.  It is easily
testable with h/w and has indeed been so.

I will note that all the patches have been committed with "[PATCH N/M]"
on them which should be cleaned off, and one of them is meant to have
needed minor porting so it would be good to figure out which one and
make sure its marked as backported from.  You should be albe to repeat
the cherry-picks till they fail.

Overall:

Acked-by: Andy Whitcroft <apw at canonical.com>

-apw