On Tue, 2019-11-12 at 13:21 -0800, Matt Roper wrote:
> On Tue, Nov 05, 2019 at 05:45:04PM -0800, José Roberto de Souza
> wrote:
> > Since VBT 228 is from this block that PSR and other power saving
> > features configuration should be read from.
> >
> > Cc: Gwan-gyeong Mun <gwan-gyeong....@intel.com>
> > Signed-off-by: José Roberto de Souza <jose.so...@intel.com>
> > ---
> > drivers/gpu/drm/i915/display/intel_bios.c | 19 +++++++++++-
> > drivers/gpu/drm/i915/display/intel_vbt_defs.h | 29
> > +++++++++++++++++++
> > 2 files changed, 47 insertions(+), 1 deletion(-)
> >
> > diff --git a/drivers/gpu/drm/i915/display/intel_bios.c
> > b/drivers/gpu/drm/i915/display/intel_bios.c
> > index a03f56b7b4ef..bf79e9858bd8 100644
> > --- a/drivers/gpu/drm/i915/display/intel_bios.c
> > +++ b/drivers/gpu/drm/i915/display/intel_bios.c
> > @@ -561,7 +561,23 @@ 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;
> > + if (bdb->version < 228)
> > + dev_priv->vbt.psr.enable = driver->psr_enabled;
> > +}
> > +
> > +static void
> > +parse_power_conservation_features(struct drm_i915_private
> > *dev_priv,
> > + const struct bdb_header *bdb)
> > +{
> > + const struct bdb_lfp_power *power;
> > + u8 panel_type = dev_priv->vbt.panel_type;
> > +
> > + power = find_section(bdb, BDB_LVDS_POWER);
> > + if (!power)
> > + return;
> > +
> > + if (bdb->version >= 228)
> > + dev_priv->vbt.psr.enable = power->psr & (1 <<
> > panel_type);
>
> Should we also be setting dev_priv->vbt.drrs_type =
> DRRS_NOT_SUPPORTED
> if block 44 tells us it isn't valid on this panel?
>
Yep, it should.
Thanks for catching this.
>
> Matt
>
> > }
> >
> > static void
> > @@ -1878,6 +1894,7 @@ void intel_bios_init(struct drm_i915_private
> > *dev_priv)
> > parse_lfp_backlight(dev_priv, bdb);
> > parse_sdvo_panel_data(dev_priv, bdb);
> > parse_driver_features(dev_priv, bdb);
> > + parse_power_conservation_features(dev_priv, bdb);
> > parse_edp(dev_priv, bdb);
> > parse_psr(dev_priv, bdb);
> > parse_mipi_config(dev_priv, bdb);
> > diff --git a/drivers/gpu/drm/i915/display/intel_vbt_defs.h
> > b/drivers/gpu/drm/i915/display/intel_vbt_defs.h
> > index 69a7cb1fa121..31f47ce56587 100644
> > --- a/drivers/gpu/drm/i915/display/intel_vbt_defs.h
> > +++ b/drivers/gpu/drm/i915/display/intel_vbt_defs.h
> > @@ -792,6 +792,35 @@ struct bdb_lfp_backlight_data {
> > struct lfp_backlight_control_method backlight_control[16];
> > } __packed;
> >
> > +/*
> > + * Block 44 - LFP Power Conservation Features Block
> > + */
> > +
> > +struct als_data_entry {
> > + u16 backlight_adjust;
> > + u16 lux;
> > +} __packed;
> > +
> > +struct agressiveness_profile_entry {
> > + u8 dpst_agressiveness : 4;
> > + u8 lace_agressiveness : 4;
> > +} __packed;
> > +
> > +struct bdb_lfp_power {
> > + u8 lfp_feature_bits;
> > + struct als_data_entry als[5];
> > + u8 lace_aggressiveness_profile;
> > + u16 dpst;
> > + u16 psr;
> > + u16 drrs;
> > + u16 lace_support;
> > + u16 adt;
> > + u16 dmrrs;
> > + u16 adb;
> > + u16 lace_enabled_status;
> > + struct agressiveness_profile_entry aggressivenes[16];
> > +} __packed;
> > +
> > /*
> > * Block 52 - MIPI Configuration Block
> > */
> > --
> > 2.24.0
> >
> > _______________________________________________
> > Intel-gfx mailing list
> > Intel-gfx@lists.freedesktop.org
> > https://lists.freedesktop.org/mailman/listinfo/intel-gfx
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