[Intel-gfx] [PATCH] drm/i915/psr: report psr2 hw enabled from psr2_ctl

[Rodrigo Vivi]

merged to dinq, thanks for the patch.

On Fri, Dec 9, 2016 at 4:39 PM Rodrigo Vivi <rodrigo.vivi at gmail.com> wrote:

>
>
> Reviewed-by: Rodrigo Vivi <rodrigo.vivi at intel.com>
>
> On Fri, Dec 09, 2016 at 11:42:09PM +0530, vathsala nagaraju wrote:
> > For PSR2 , as per spec, PSR2_CTL bit 31 to be set.
> > for psr1, bit 31 in SRD_CTL to be set. Reporting
> > "HW Enabled & Active bit" status for psr2 from SRD_CTL
> > gives  wrong status.
> >
> > Cc: Rodrigo Vivi <rodrigo.vivi at intel.com>
> > Cc: Jim Bride <jim.bride at linux.intel.com>
> > Signed-off-by: vathsala nagaraju <vathsala.nagaraju at intel.com>
> > ---
> >  drivers/gpu/drm/i915/i915_debugfs.c | 9 ++++++---
> >  1 file changed, 6 insertions(+), 3 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/i915/i915_debugfs.c
> b/drivers/gpu/drm/i915/i915_debugfs.c
> > index a746130..54e196d 100644
> > --- a/drivers/gpu/drm/i915/i915_debugfs.c
> > +++ b/drivers/gpu/drm/i915/i915_debugfs.c
> > @@ -2567,9 +2567,12 @@ static int i915_edp_psr_status(struct seq_file
> *m, void *data)
> >       seq_printf(m, "Re-enable work scheduled: %s\n",
> >                  yesno(work_busy(&dev_priv->psr.work.work)));
> >
> > -     if (HAS_DDI(dev_priv))
> > -             enabled = I915_READ(EDP_PSR_CTL) & EDP_PSR_ENABLE;
> > -     else {
> > +     if (HAS_DDI(dev_priv)) {
> > +             if (dev_priv->psr.psr2_support)
> > +                     enabled = I915_READ(EDP_PSR2_CTL) &
> EDP_PSR2_ENABLE;
> > +             else
> > +                     enabled = I915_READ(EDP_PSR_CTL) & EDP_PSR_ENABLE;
> > +     } else {
> >               for_each_pipe(dev_priv, pipe) {
> >                       enum transcoder cpu_transcoder =
> >                               intel_pipe_to_cpu_transcoder(dev_priv,
> pipe);
> > --
> > 1.9.1
> >
> > _______________________________________________
> > Intel-gfx mailing list
> > Intel-gfx at lists.freedesktop.org
> > https://lists.freedesktop.org/mailman/listinfo/intel-gfx
>
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