Check if port uses vswing/preemph override tables. Print info about port when requested.
Signed-off-by: Michał Grzelak <[email protected]> --- drivers/gpu/drm/i915/display/intel_bios.c | 11 +++++++++++ drivers/gpu/drm/i915/display/intel_bios.h | 1 + 2 files changed, 12 insertions(+) diff --git a/drivers/gpu/drm/i915/display/intel_bios.c b/drivers/gpu/drm/i915/display/intel_bios.c index f88f330d21ae..6c618f17f772 100644 --- a/drivers/gpu/drm/i915/display/intel_bios.c +++ b/drivers/gpu/drm/i915/display/intel_bios.c @@ -2764,6 +2764,11 @@ static void print_ddi_port(const struct intel_bios_encoder_data *devdata) "Port %c supports dynamic DDI allocation in TCSS\n", port_name(port)); + if (intel_bios_encoder_overrides_vswing(devdata)) + drm_dbg_kms(display->drm, + "Port %c overrides VBT vswing/preemphasis tables\n", + port_name(port)); + hdmi_level_shift = intel_bios_hdmi_level_shift(devdata); if (hdmi_level_shift >= 0) { drm_dbg_kms(display->drm, @@ -3795,6 +3800,12 @@ bool intel_bios_encoder_supports_tbt(const struct intel_bios_encoder_data *devda return devdata->display->vbt.version >= 209 && devdata->child.tbt; } +bool intel_bios_encoder_overrides_vswing(const struct intel_bios_encoder_data *devdata) +{ + return devdata->display->vbt.version >= 218 && + devdata->child.use_vbt_vswing; +} + bool intel_bios_encoder_is_dedicated_external(const struct intel_bios_encoder_data *devdata) { return devdata->display->vbt.version >= 264 && diff --git a/drivers/gpu/drm/i915/display/intel_bios.h b/drivers/gpu/drm/i915/display/intel_bios.h index 75dff27b4228..50c8fc91fbe8 100644 --- a/drivers/gpu/drm/i915/display/intel_bios.h +++ b/drivers/gpu/drm/i915/display/intel_bios.h @@ -73,6 +73,7 @@ bool intel_bios_get_dsc_params(struct intel_encoder *encoder, const struct intel_bios_encoder_data * intel_bios_encoder_data_lookup(struct intel_display *display, enum port port); +bool intel_bios_encoder_overrides_vswing(const struct intel_bios_encoder_data *devdata); bool intel_bios_encoder_supports_dvi(const struct intel_bios_encoder_data *devdata); bool intel_bios_encoder_supports_hdmi(const struct intel_bios_encoder_data *devdata); bool intel_bios_encoder_supports_dp(const struct intel_bios_encoder_data *devdata); -- 2.45.2
