drm/i915: Use the correct AUX power domain in TypeC TBT-alt mode

[linux-2.6-microblaze.git] / drivers / gpu / drm / i915 / display / intel_display.c

diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index d65a580..6f93bed 100644 (file)
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -6610,6 +6610,25 @@ enum intel_display_power_domain intel_port_to_power_domain(enum port port)
 enum intel_display_power_domain
 intel_aux_power_domain(struct intel_digital_port *dig_port)
 {
+       struct drm_i915_private *dev_priv = to_i915(dig_port->base.base.dev);
+
+       if (intel_port_is_tc(dev_priv, dig_port->base.port) &&
+           dig_port->tc_mode == TC_PORT_TBT_ALT) {
+               switch (dig_port->aux_ch) {
+               case AUX_CH_C:
+                       return POWER_DOMAIN_AUX_TBT1;
+               case AUX_CH_D:
+                       return POWER_DOMAIN_AUX_TBT2;
+               case AUX_CH_E:
+                       return POWER_DOMAIN_AUX_TBT3;
+               case AUX_CH_F:
+                       return POWER_DOMAIN_AUX_TBT4;
+               default:
+                       MISSING_CASE(dig_port->aux_ch);
+                       return POWER_DOMAIN_AUX_TBT1;
+               }
+       }
+
        switch (dig_port->aux_ch) {
        case AUX_CH_A:
                return POWER_DOMAIN_AUX_A;