diff options
| author | Ander Conselvan de Oliveira | 2016-04-27 14:44:23 +0200 |
|---|---|---|
| committer | Ander Conselvan de Oliveira | 2016-04-29 08:58:45 +0200 |
| commit | 6da2e61602e3511a07d19df9494b07eb1f4c0ef6 (patch) | |
| tree | 128fd4b0a3b90289de1dc6b31a6fc37f36526a01 /drivers/gpu/drm/i915/intel_dpio_phy.c | |
| parent | drm/i915: Unduplicate VLV signal level code (diff) | |
| download | kernel-qcow2-linux-6da2e61602e3511a07d19df9494b07eb1f4c0ef6.tar.gz kernel-qcow2-linux-6da2e61602e3511a07d19df9494b07eb1f4c0ef6.tar.xz kernel-qcow2-linux-6da2e61602e3511a07d19df9494b07eb1f4c0ef6.zip | |
drm/i915: Unduplicate VLV phy pre pll enabling code
The code used by the DP and HDMI paths was very similar, so make them
share it. Note that this removes the write to signal level registers
from the HDMI pre pll enable path, but that's OK since those are set
in vlv_hdmi_pre_enable() function.
Signed-off-by: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com>
Reviewed-by: Jim Bride <jim.bride@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1461761065-21195-9-git-send-email-ander.conselvan.de.oliveira@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/intel_dpio_phy.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_dpio_phy.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_dpio_phy.c b/drivers/gpu/drm/i915/intel_dpio_phy.c index 8fb4fda9fc56..975965a7fe73 100644 --- a/drivers/gpu/drm/i915/intel_dpio_phy.c +++ b/drivers/gpu/drm/i915/intel_dpio_phy.c @@ -395,3 +395,31 @@ void vlv_set_phy_signal_level(struct intel_encoder *encoder, vlv_dpio_write(dev_priv, pipe, VLV_TX_DW5(port), DPIO_TX_OCALINIT_EN); mutex_unlock(&dev_priv->sb_lock); } + +void vlv_phy_pre_pll_enable(struct intel_encoder *encoder) +{ + struct intel_digital_port *dport = enc_to_dig_port(&encoder->base); + struct drm_device *dev = encoder->base.dev; + struct drm_i915_private *dev_priv = 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; + + /* Program Tx lane resets to default */ + mutex_lock(&dev_priv->sb_lock); + vlv_dpio_write(dev_priv, pipe, VLV_PCS_DW0(port), + DPIO_PCS_TX_LANE2_RESET | + DPIO_PCS_TX_LANE1_RESET); + vlv_dpio_write(dev_priv, pipe, VLV_PCS_DW1(port), + DPIO_PCS_CLK_CRI_RXEB_EIOS_EN | + DPIO_PCS_CLK_CRI_RXDIGFILTSG_EN | + (1<<DPIO_PCS_CLK_DATAWIDTH_SHIFT) | + DPIO_PCS_CLK_SOFT_RESET); + + /* Fix up inter-pair skew failure */ + vlv_dpio_write(dev_priv, pipe, VLV_PCS_DW12(port), 0x00750f00); + vlv_dpio_write(dev_priv, pipe, VLV_TX_DW11(port), 0x00001500); + vlv_dpio_write(dev_priv, pipe, VLV_TX_DW14(port), 0x40400000); + mutex_unlock(&dev_priv->sb_lock); +} |