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drm/i915: Always check dp_m2_n2 on pre-bdw

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No point in special casing the check of dp_m2_n2 on pre-bdw platforms.
Either the transcoder has M2/N2 in which case the values should be
set to something sensible, or it doesn't in which case dp_m2_n2 is
always zeroed.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220128103757.22461-17-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
This commit is contained in:
Ville Syrjälä 2022-01-28 12:37:56 +02:00
parent 00dd7f953b
commit 2efb4adf48
1 changed files with 5 additions and 6 deletions
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11
drivers/gpu/drm/i915/display/intel_display.c
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@ -6483,13 +6483,12 @@ intel_pipe_config_compare(const struct intel_crtc_state *current_config,
PIPE_CONF_CHECK_I(lane_count);
PIPE_CONF_CHECK_X(lane_lat_optim_mask);
if (DISPLAY_VER(dev_priv) < 8) {
PIPE_CONF_CHECK_M_N(dp_m_n);
if (current_config->has_drrs)
PIPE_CONF_CHECK_M_N(dp_m2_n2);
} else
if (DISPLAY_VER(dev_priv) >= 9 || IS_BROADWELL(dev_priv)) {
PIPE_CONF_CHECK_M_N_ALT(dp_m_n, dp_m2_n2);
} else {
PIPE_CONF_CHECK_M_N(dp_m_n);
PIPE_CONF_CHECK_M_N(dp_m2_n2);
}
PIPE_CONF_CHECK_X(output_types);