u32 dip_enable = VIDEO_DIP_ENABLE_AVI_HSW | VIDEO_DIP_ENABLE_GCP_HSW |
VIDEO_DIP_ENABLE_VS_HSW | VIDEO_DIP_ENABLE_GMP_HSW |
VIDEO_DIP_ENABLE_SPD_HSW | VIDEO_DIP_ENABLE_DRM_GLK;
- u32 val = intel_de_read(dev_priv, reg);
+ u32 val = intel_de_read(dev_priv, reg) & ~dip_enable;
/* TODO: Add DSC case (DIP_ENABLE_PPS) */
/* When PSR is enabled, this routine doesn't disable VSC DIP */
- if (crtc_state->has_psr)
- val &= ~dip_enable;
- else
- val &= ~(dip_enable | VIDEO_DIP_ENABLE_VSC_HSW);
-
- if (!enable) {
- intel_de_write(dev_priv, reg, val);
- intel_de_posting_read(dev_priv, reg);
- return;
- }
+ if (!crtc_state->has_psr)
+ val &= ~VIDEO_DIP_ENABLE_VSC_HSW;
intel_de_write(dev_priv, reg, val);
intel_de_posting_read(dev_priv, reg);
+ if (!enable)
+ return;
+
/* When PSR is enabled, VSC SDP is handled by PSR routine */
if (!crtc_state->has_psr)
intel_write_dp_sdp(encoder, crtc_state, DP_SDP_VSC);