| Message ID | 20240516182715.27119-1-ville.syrjala@linux.intel.com (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | drm/i915: Bump max TMDS bitrate to 6 Gbps on ADL/DG2+ | expand |
On Thu, 16 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/DG2. *max There's also ADL-S with display 12 and 6 Gbps support? BR, Jani. > Bump our limit to match. > > Signed-off-by: Ville Syrjälä <ville.syrjala@linux.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..bd0ba4edcd1d 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) > + 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;
On Mon, May 20, 2024 at 01:37:26PM +0300, Jani Nikula wrote: > On Thu, 16 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/DG2. > > *max > > There's also ADL-S with display 12 and 6 Gbps support? Looks like it. Too many weird platform variants... > > BR, > Jani. > > > Bump our limit to match. > > > > Signed-off-by: Ville Syrjälä <ville.syrjala@linux.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..bd0ba4edcd1d 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) > > + 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; > > -- > Jani Nikula, Intel
diff --git a/drivers/gpu/drm/i915/display/intel_hdmi.c b/drivers/gpu/drm/i915/display/intel_hdmi.c index 0faf2afa1c09..bd0ba4edcd1d 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) + 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;