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drm/i915: Bump max TMDS bitrate to 6 Gbps on ADL-S/ADL-P/DG2+

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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>
Link: https://patchwork.freedesktop.org/patch/msgid/20240520164732.3682-1-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
This commit is contained in:
Ville Syrjälä 2024-05-20 19:47:32 +03:00
parent bb3c3e79d9
commit 2689390b4e
1 changed files with 3 additions and 1 deletions
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4
drivers/gpu/drm/i915/display/intel_hdmi.c
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@ -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;