diff options
Diffstat (limited to 'drivers/gpu/drm/i915/intel_hdmi.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_hdmi.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c index 9ea494a2a32e..f66c7a2ebd9a 100644 --- a/drivers/gpu/drm/i915/intel_hdmi.c +++ b/drivers/gpu/drm/i915/intel_hdmi.c @@ -1259,6 +1259,10 @@ static void chv_hdmi_post_disable(struct intel_encoder *encoder) mutex_lock(&dev_priv->dpio_lock); /* Propagate soft reset to data lane reset */ + val = vlv_dpio_read(dev_priv, pipe, VLV_PCS_DW1(ch)); + val |= CHV_PCS_REQ_SOFTRESET_EN; + vlv_dpio_write(dev_priv, pipe, VLV_PCS_DW1(ch), val); + val = vlv_dpio_read(dev_priv, pipe, VLV_PCS_DW0(ch)); val &= ~(DPIO_PCS_TX_LANE2_RESET | DPIO_PCS_TX_LANE1_RESET); vlv_dpio_write(dev_priv, pipe, VLV_PCS_DW0(ch), val); @@ -1281,6 +1285,10 @@ static void chv_hdmi_pre_enable(struct intel_encoder *encoder) mutex_lock(&dev_priv->dpio_lock); /* Deassert soft data lane reset*/ + val = vlv_dpio_read(dev_priv, pipe, VLV_PCS_DW1(ch)); + val |= CHV_PCS_REQ_SOFTRESET_EN; + vlv_dpio_write(dev_priv, pipe, VLV_PCS_DW1(ch), val); + val = vlv_dpio_read(dev_priv, pipe, VLV_PCS_DW0(ch)); val |= (DPIO_PCS_TX_LANE2_RESET | DPIO_PCS_TX_LANE1_RESET); vlv_dpio_write(dev_priv, pipe, VLV_PCS_DW0(ch), val); |