+
+ if (connector->connector_type == DRM_MODE_CONNECTOR_eDP ||
+ connector->connector_type == DRM_MODE_CONNECTOR_LVDS) {
+ /* don't try to enable hpd on eDP or LVDS avoid breaking the
+ * aux dp channel on imac and help (but not completely fix)
+ * https://bugzilla.redhat.com/show_bug.cgi?id=726143
+ * also avoid interrupt storms during dpms.
+ */
+ u32 dc_hpd_int_cntl_reg, dc_hpd_int_cntl;
+
+ switch (amdgpu_connector->hpd.hpd) {
+ case AMDGPU_HPD_1:
+ dc_hpd_int_cntl_reg = mmDC_HPD1_INT_CONTROL;
+ break;
+ case AMDGPU_HPD_2:
+ dc_hpd_int_cntl_reg = mmDC_HPD2_INT_CONTROL;
+ break;
+ case AMDGPU_HPD_3:
+ dc_hpd_int_cntl_reg = mmDC_HPD3_INT_CONTROL;
+ break;
+ case AMDGPU_HPD_4:
+ dc_hpd_int_cntl_reg = mmDC_HPD4_INT_CONTROL;
+ break;
+ case AMDGPU_HPD_5:
+ dc_hpd_int_cntl_reg = mmDC_HPD5_INT_CONTROL;
+ break;
+ case AMDGPU_HPD_6:
+ dc_hpd_int_cntl_reg = mmDC_HPD6_INT_CONTROL;
+ break;
+ default:
+ continue;
+ }
+
+ dc_hpd_int_cntl = RREG32(dc_hpd_int_cntl_reg);
+ dc_hpd_int_cntl &= ~DC_HPD1_INT_CONTROL__DC_HPD1_INT_EN_MASK;
+ WREG32(dc_hpd_int_cntl_reg, dc_hpd_int_cntl);
+ continue;
+ }
+