| Message ID | 20240520164732.3682-1-ville.syrjala@linux.intel.com (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | [v2] drm/i915: Bump max TMDS bitrate to 6 Gbps on ADL-S/ADL-P/DG2+ | expand |
On Mon, 20 May 2024, Ville Syrjala <ville.syrjala@linux.intel.com> wrote: > From: Ville Syrjälä <ville.syrjala@linux.intel.com> > > Bspec lists the mas TMDS bitrate as 6 Gbps on ADL-S/ADL-P/DG2. > Bump our limit to match. > > v2: Bump for ADL-S as well (Jani) > > Cc: Jani Nikula <jani.nikula@intel.com> > Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Jani Nikula <jani.nikula@intel.com> > --- > drivers/gpu/drm/i915/display/intel_hdmi.c | 4 +++- > 1 file changed, 3 insertions(+), 1 deletion(-) > > diff --git a/drivers/gpu/drm/i915/display/intel_hdmi.c b/drivers/gpu/drm/i915/display/intel_hdmi.c > index 0faf2afa1c09..9ac670a40bc1 100644 > --- a/drivers/gpu/drm/i915/display/intel_hdmi.c > +++ b/drivers/gpu/drm/i915/display/intel_hdmi.c > @@ -1784,7 +1784,9 @@ static int intel_hdmi_source_max_tmds_clock(struct intel_encoder *encoder) > struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); > int max_tmds_clock, vbt_max_tmds_clock; > > - if (DISPLAY_VER(dev_priv) >= 10) > + if (DISPLAY_VER(dev_priv) >= 13 || IS_ALDERLAKE_S(dev_priv)) > + max_tmds_clock = 600000; > + else if (DISPLAY_VER(dev_priv) >= 10) > max_tmds_clock = 594000; > else if (DISPLAY_VER(dev_priv) >= 8 || IS_HASWELL(dev_priv)) > max_tmds_clock = 300000;
diff --git a/drivers/gpu/drm/i915/display/intel_hdmi.c b/drivers/gpu/drm/i915/display/intel_hdmi.c index 0faf2afa1c09..9ac670a40bc1 100644 --- a/drivers/gpu/drm/i915/display/intel_hdmi.c +++ b/drivers/gpu/drm/i915/display/intel_hdmi.c @@ -1784,7 +1784,9 @@ static int intel_hdmi_source_max_tmds_clock(struct intel_encoder *encoder) struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); int max_tmds_clock, vbt_max_tmds_clock; - if (DISPLAY_VER(dev_priv) >= 10) + if (DISPLAY_VER(dev_priv) >= 13 || IS_ALDERLAKE_S(dev_priv)) + max_tmds_clock = 600000; + else if (DISPLAY_VER(dev_priv) >= 10) max_tmds_clock = 594000; else if (DISPLAY_VER(dev_priv) >= 8 || IS_HASWELL(dev_priv)) max_tmds_clock = 300000;