diff options
Diffstat (limited to 'src/northbridge/intel/haswell/gma.c')
| -rw-r--r-- | src/northbridge/intel/haswell/gma.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/src/northbridge/intel/haswell/gma.c b/src/northbridge/intel/haswell/gma.c index efc9fa3bd5..f4cec68c06 100644 --- a/src/northbridge/intel/haswell/gma.c +++ b/src/northbridge/intel/haswell/gma.c @@ -368,7 +368,10 @@ static void gma_setup_panel(struct device *dev) bit 4: DDI A supports 4 lanes and DDI E is not used bit 7: DDI buffer is idle */ - gtt_write(DDI_BUF_CTL_A, DDI_BUF_IS_IDLE | DDI_A_4_LANES | DDI_INIT_DISPLAY_DETECTED); + reg32 = DDI_BUF_IS_IDLE | DDI_INIT_DISPLAY_DETECTED; + if (!conf->gpu_ddi_e_connected) + reg32 |= DDI_A_4_LANES; + gtt_write(DDI_BUF_CTL_A, reg32); /* Set FDI registers - is this required? */ gtt_write(_FDI_RXA_MISC, 0x00200090); |