drm/i915/skl: Adding DDI_E power well domain
From B spec, DDI_E port belong to PowerWell 2, but
DDI_E share the powerwell_req/staus register bit with
DDI_A which belong to DDI_A_E_POWER_WELL.
In order to communicate with the connector on DDI-E, both
DDI_A_E_POWER_WELL and POWER_WELL_2 must be enabled.
Currently intel_dp_power_get(DDI_E) only enable
DDI_A_E_POWER_WELL, this patch will not only enable
DDI_a_E_POWER_WELL but also enable POWER_WELL_2.
This patch also fix the DDI-E hotplug function.
Signed-off-by: Xiong Zhang <xiong.y.zhang@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 9bae133..a5cddcd 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -5150,7 +5150,6 @@
{
switch (port) {
case PORT_A:
- case PORT_E:
return POWER_DOMAIN_PORT_DDI_A_4_LANES;
case PORT_B:
return POWER_DOMAIN_PORT_DDI_B_4_LANES;
@@ -5158,6 +5157,8 @@
return POWER_DOMAIN_PORT_DDI_C_4_LANES;
case PORT_D:
return POWER_DOMAIN_PORT_DDI_D_4_LANES;
+ case PORT_E:
+ return POWER_DOMAIN_PORT_DDI_E_2_LANES;
default:
WARN_ON_ONCE(1);
return POWER_DOMAIN_PORT_OTHER;