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drm/i915: Allow eDP on port C in theory 

The power sequencer has bits to allow DP C to be used for eDP.
Currently we assume this will never happen, but I guess it could
theoretically be a thing. Make the code do the right thing in that
case, and toss in a MISSING_CASE() for any other port.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180518152931.13104-5-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
This commit is contained in:
Ville Syrjälä 2018-05-18 18:29:29 +03:00
parent 59b74c497a
commit 05bf51d3b5
1 changed files with 12 additions and 2 deletions
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14
drivers/gpu/drm/i915/intel_dp.c
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@ -5712,10 +5712,20 @@ intel_dp_init_panel_power_sequencer_registers(struct intel_dp *intel_dp,
if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) {
port_sel = PANEL_PORT_SELECT_VLV(port);
} else if (HAS_PCH_IBX(dev_priv) || HAS_PCH_CPT(dev_priv)) {
if (port == PORT_A)
switch (port) {
case PORT_A:
port_sel = PANEL_PORT_SELECT_DPA;
else
break;
case PORT_C:
port_sel = PANEL_PORT_SELECT_DPC;
break;
case PORT_D:
port_sel = PANEL_PORT_SELECT_DPD;
break;
default:
MISSING_CASE(port);
break;
}
}
pp_on |= port_sel;