On Wed, May 09, 2018 at 05:29:14AM -0700, Rodrigo Vivi wrote:
> On Tue, May 08, 2018 at 05:35:24PM -0700, Dhinakaran Pandiyan wrote:
> > Driver features data block has a boolean flag for PSR, use this to decide
> > whether PSR should be enabled on a platform. The module parameter can
> > still be used to override this.
> >
> > Note: The feature currently remains disabled by default for all platforms
> > irrespective of what VBT says.
> >
> > Cc: Rodrigo Vivi <[email protected]>
> > Signed-off-by: Dhinakaran Pandiyan <[email protected]>
>
> Reviewed-by: Rodrigo Vivi <[email protected]>
pushed to dinq. Thanks for the patch.
>
> > ---
> > drivers/gpu/drm/i915/i915_drv.h | 1 +
> > drivers/gpu/drm/i915/intel_bios.c | 1 +
> > drivers/gpu/drm/i915/intel_psr.c | 7 +++++--
> > 3 files changed, 7 insertions(+), 2 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/i915/i915_drv.h
> > b/drivers/gpu/drm/i915/i915_drv.h
> > index 04e27806e581..24c5e4765afd 100644
> > --- a/drivers/gpu/drm/i915/i915_drv.h
> > +++ b/drivers/gpu/drm/i915/i915_drv.h
> > @@ -1073,6 +1073,7 @@ struct intel_vbt_data {
> > } edp;
> >
> > struct {
> > + bool enable;
> > bool full_link;
> > bool require_aux_wakeup;
> > int idle_frames;
> > diff --git a/drivers/gpu/drm/i915/intel_bios.c
> > b/drivers/gpu/drm/i915/intel_bios.c
> > index 702d3fab97fc..54270bdde100 100644
> > --- a/drivers/gpu/drm/i915/intel_bios.c
> > +++ b/drivers/gpu/drm/i915/intel_bios.c
> > @@ -530,6 +530,7 @@ parse_driver_features(struct drm_i915_private *dev_priv,
> > */
> > if (!driver->drrs_enabled)
> > dev_priv->vbt.drrs_type = DRRS_NOT_SUPPORTED;
> > + dev_priv->vbt.psr.enable = driver->psr_enabled;
> > }
> >
> > static void
> > diff --git a/drivers/gpu/drm/i915/intel_psr.c
> > b/drivers/gpu/drm/i915/intel_psr.c
> > index 6233a322aac5..db27f2faa1de 100644
> > --- a/drivers/gpu/drm/i915/intel_psr.c
> > +++ b/drivers/gpu/drm/i915/intel_psr.c
> > @@ -1173,9 +1173,12 @@ void intel_psr_init(struct drm_i915_private
> > *dev_priv)
> > if (!dev_priv->psr.sink_support)
> > return;
> >
> > - /* Per platform default: all disabled. */
> > - if (i915_modparams.enable_psr == -1)
> > + if (i915_modparams.enable_psr == -1) {
> > + i915_modparams.enable_psr = dev_priv->vbt.psr.enable;
> > +
> > + /* Per platform default: all disabled. */
> > i915_modparams.enable_psr = 0;
> > + }
> >
> > /* Set link_standby x link_off defaults */
> > if (IS_HASWELL(dev_priv) || IS_BROADWELL(dev_priv))
> > --
> > 2.14.1
> >
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