On Wed, 09 Nov 2022, Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx> wrote:
> On Wed, Nov 09, 2022 at 02:48:21AM +0530, Animesh Manna wrote:
>> >From display gen12 onwards to support dual EDP two instances of pps added.
>> Currently backlight controller and pps instance can be mapped together
>> for a specific panel. Extended support for gen12 for dual EDP usage.
>>
>> v1: Iniital revision
>> v2: Called intel_bios_panel_init w/o PNPID before intel_pps_init. [Jani]
>>
>> Cc: Jani Nikula <jani.nikula@xxxxxxxxx>
>> Cc: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
>> Cc: Uma Shankar <uma.shankar@xxxxxxxxx>
>> Signed-off-by: Animesh Manna <animesh.manna@xxxxxxxxx>
>> ---
>> drivers/gpu/drm/i915/display/intel_bios.c | 7 -------
>> drivers/gpu/drm/i915/display/intel_bios.h | 7 +++++++
>> drivers/gpu/drm/i915/display/intel_dp.c | 9 ++++++---
>> drivers/gpu/drm/i915/display/intel_pps.c | 2 +-
>> 4 files changed, 14 insertions(+), 11 deletions(-)
>>
>> diff --git a/drivers/gpu/drm/i915/display/intel_bios.c b/drivers/gpu/drm/i915/display/intel_bios.c
>> index c2987f2c2b2e..fca44be9bab8 100644
>> --- a/drivers/gpu/drm/i915/display/intel_bios.c
>> +++ b/drivers/gpu/drm/i915/display/intel_bios.c
>> @@ -706,13 +706,6 @@ static int fallback_get_panel_type(struct drm_i915_private *i915,
>> return 0;
>> }
>>
>> -enum panel_type {
>> - PANEL_TYPE_OPREGION,
>> - PANEL_TYPE_VBT,
>> - PANEL_TYPE_PNPID,
>> - PANEL_TYPE_FALLBACK,
>> -};
>> -
>> static int get_panel_type(struct drm_i915_private *i915,
>> const struct intel_bios_encoder_data *devdata,
>> const struct edid *edid)
>> diff --git a/drivers/gpu/drm/i915/display/intel_bios.h b/drivers/gpu/drm/i915/display/intel_bios.h
>> index e375405a7828..da01b13260ae 100644
>> --- a/drivers/gpu/drm/i915/display/intel_bios.h
>> +++ b/drivers/gpu/drm/i915/display/intel_bios.h
>> @@ -231,6 +231,13 @@ struct mipi_pps_data {
>> u16 panel_power_cycle_delay;
>> } __packed;
>>
>> +enum panel_type {
>> + PANEL_TYPE_OPREGION,
>> + PANEL_TYPE_VBT,
>> + PANEL_TYPE_PNPID,
>> + PANEL_TYPE_FALLBACK,
>> +};
>> +
>> void intel_bios_init(struct drm_i915_private *dev_priv);
>> void intel_bios_init_panel(struct drm_i915_private *dev_priv,
>> struct intel_panel *panel,
>> diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
>> index 7400d6b4c587..08ece347f7cb 100644
>> --- a/drivers/gpu/drm/i915/display/intel_dp.c
>> +++ b/drivers/gpu/drm/i915/display/intel_dp.c
>> @@ -5254,6 +5254,9 @@ static bool intel_edp_init_connector(struct intel_dp *intel_dp,
>> return false;
>> }
>>
>> + intel_bios_init_panel(dev_priv, &intel_connector->panel,
>> + encoder->devdata, NULL);
>> +
>> intel_pps_init(intel_dp);
>>
>> /* Cache DPCD and EDID for edp. */
>> @@ -5288,9 +5291,9 @@ static bool intel_edp_init_connector(struct intel_dp *intel_dp,
>> edid = ERR_PTR(-ENOENT);
>> }
>> intel_connector->edid = edid;
>> -
>> - intel_bios_init_panel(dev_priv, &intel_connector->panel,
>> - encoder->devdata, IS_ERR(edid) ? NULL : edid);
>> + if (intel_connector->panel.vbt.panel_type == PANEL_TYPE_FALLBACK)
>
> vbt.panel_type does _not_ contain enum panel_type (a bit of an
> unfortunate name selection by me there I guess).
>
>> + intel_bios_init_panel(dev_priv, &intel_connector->panel,
>> + encoder->devdata, IS_ERR(edid) ? NULL : edid);
>
> I suspect just calling this twice might leak all kinds of stuff.
Yeah, what's up with this, this is some old version that was fixed way
back too. I thought this was good to go:
https://lore.kernel.org/r/20221018083921.23239-2-animesh.manna@xxxxxxxxx
>
>>
>> intel_panel_add_edid_fixed_modes(intel_connector, true);
>>
>> diff --git a/drivers/gpu/drm/i915/display/intel_pps.c b/drivers/gpu/drm/i915/display/intel_pps.c
>> index 3949fb449353..0975e49f8d03 100644
>> --- a/drivers/gpu/drm/i915/display/intel_pps.c
>> +++ b/drivers/gpu/drm/i915/display/intel_pps.c
>> @@ -1430,7 +1430,7 @@ void intel_pps_init(struct intel_dp *intel_dp)
>> intel_dp->pps.initializing = true;
>> INIT_DELAYED_WORK(&intel_dp->pps.panel_vdd_work, edp_panel_vdd_work);
>>
>> - if (IS_GEMINILAKE(i915) || IS_BROXTON(i915))
>> + if (IS_GEMINILAKE(i915) || IS_BROXTON(i915) || DISPLAY_VER(i915) >= 12)
>> intel_dp->get_pps_idx = bxt_power_sequencer_idx;
>> else if (IS_VALLEYVIEW(i915) || IS_CHERRYVIEW(i915))
>> intel_dp->get_pps_idx = vlv_power_sequencer_pipe;
>> --
>> 2.29.0
--
Jani Nikula, Intel Open Source Graphics Center
