diff options
Diffstat (limited to 'drivers/gpu/drm/i915/intel_dpio_phy.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_dpio_phy.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_dpio_phy.c b/drivers/gpu/drm/i915/intel_dpio_phy.c index 2c14bf035a0b..288da35572b4 100644 --- a/drivers/gpu/drm/i915/intel_dpio_phy.c +++ b/drivers/gpu/drm/i915/intel_dpio_phy.c @@ -453,3 +453,18 @@ void vlv_phy_pre_encoder_enable(struct intel_encoder *encoder) mutex_unlock(&dev_priv->sb_lock); } + +void vlv_phy_reset_lanes(struct intel_encoder *encoder) +{ + struct intel_digital_port *dport = enc_to_dig_port(&encoder->base); + struct drm_i915_private *dev_priv = encoder->base.dev->dev_private; + struct intel_crtc *intel_crtc = + to_intel_crtc(encoder->base.crtc); + enum dpio_channel port = vlv_dport_to_channel(dport); + int pipe = intel_crtc->pipe; + + mutex_lock(&dev_priv->sb_lock); + vlv_dpio_write(dev_priv, pipe, VLV_PCS_DW0(port), 0x00000000); + vlv_dpio_write(dev_priv, pipe, VLV_PCS_DW1(port), 0x00e00060); + mutex_unlock(&dev_priv->sb_lock); +} |