[Intel-gfx] [PATCH v2 07/10] drm/i915: Undiplicate VLV signal level code
Ander Conselvan de Oliveira
ander.conselvan.de.oliveira at intel.com
Wed Apr 13 17:47:50 UTC 2016
The logic for setting signal levels is used for both HDMI and DP with
small variations. But it is similar enough to put behind a function
called from the encoders.
Signed-off-by: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira at intel.com>
---
drivers/gpu/drm/i915/i915_drv.h | 4 ++++
drivers/gpu/drm/i915/intel_dp.c | 43 ++++++++++++-----------------------
drivers/gpu/drm/i915/intel_dpio_phy.c | 26 +++++++++++++++++++++
drivers/gpu/drm/i915/intel_hdmi.c | 14 ++++--------
4 files changed, 49 insertions(+), 38 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 85c0610..f2481a2 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -3565,6 +3565,10 @@ void chv_phy_pre_encoder_enable(struct intel_encoder *encoder);
void chv_phy_release_cl2_override(struct intel_encoder *encoder);
void chv_phy_post_disable(struct intel_encoder *encoder);
+void vlv_set_phy_signal_level(struct intel_encoder *encoder,
+ u32 demph_reg_value, u32 preemph_reg_value,
+ u32 uniqtranscale_reg_value, u32 tx3_demph);
+
int intel_gpu_freq(struct drm_i915_private *dev_priv, int val);
int intel_freq_opcode(struct drm_i915_private *dev_priv, int val);
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index cdacd8b..3e42355 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -3009,16 +3009,10 @@ intel_dp_pre_emphasis_max(struct intel_dp *intel_dp, uint8_t voltage_swing)
static uint32_t vlv_signal_levels(struct intel_dp *intel_dp)
{
- struct drm_device *dev = intel_dp_to_dev(intel_dp);
- struct drm_i915_private *dev_priv = dev->dev_private;
- struct intel_digital_port *dport = dp_to_dig_port(intel_dp);
- struct intel_crtc *intel_crtc =
- to_intel_crtc(dport->base.base.crtc);
+ struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
unsigned long demph_reg_value, preemph_reg_value,
uniqtranscale_reg_value;
uint8_t train_set = intel_dp->train_set[0];
- enum dpio_channel port = vlv_dport_to_channel(dport);
- int pipe = intel_crtc->pipe;
switch (train_set & DP_TRAIN_PRE_EMPHASIS_MASK) {
case DP_TRAIN_PRE_EMPH_LEVEL_0:
@@ -3093,16 +3087,8 @@ static uint32_t vlv_signal_levels(struct intel_dp *intel_dp)
return 0;
}
- mutex_lock(&dev_priv->sb_lock);
- vlv_dpio_write(dev_priv, pipe, VLV_TX_DW5(port), 0x00000000);
- vlv_dpio_write(dev_priv, pipe, VLV_TX_DW4(port), demph_reg_value);
- vlv_dpio_write(dev_priv, pipe, VLV_TX_DW2(port),
- uniqtranscale_reg_value);
- vlv_dpio_write(dev_priv, pipe, VLV_TX_DW3(port), 0x0C782040);
- vlv_dpio_write(dev_priv, pipe, VLV_PCS_DW11(port), 0x00030000);
- vlv_dpio_write(dev_priv, pipe, VLV_PCS_DW9(port), preemph_reg_value);
- vlv_dpio_write(dev_priv, pipe, VLV_TX_DW5(port), 0x80000000);
- mutex_unlock(&dev_priv->sb_lock);
+ vlv_set_phy_signal_level(encoder, demph_reg_value, preemph_reg_value,
+ uniqtranscale_reg_value, 0);
return 0;
}
@@ -4285,17 +4271,6 @@ intel_dp_long_pulse(struct intel_connector *intel_connector)
intel_dp->compliance_test_type = 0;
intel_dp->compliance_test_data = 0;
- /*
- * If we were in MST mode, and device is not there,
- * get out of MST mode
- */
- if (intel_dp->is_mst) {
- DRM_DEBUG_KMS("MST device may have disappeared %d vs %d\n",
- intel_dp->is_mst, intel_dp->mst_mgr.mst_state);
- intel_dp->is_mst = false;
- drm_dp_mst_topology_mgr_set_mst(&intel_dp->mst_mgr,
- intel_dp->is_mst);
- }
goto out;
}
@@ -4355,6 +4330,18 @@ intel_dp_long_pulse(struct intel_connector *intel_connector)
out:
if (status != connector_status_connected) {
intel_dp_unset_edid(intel_dp);
+
+ /*
+ * If we were in MST mode, and device is not there,
+ * get out of MST mode
+ */
+ if (intel_dp->is_mst) {
+ DRM_DEBUG_KMS("MST device may have disappeared %d vs %d\n",
+ intel_dp->is_mst, intel_dp->mst_mgr.mst_state);
+ intel_dp->is_mst = false;
+ drm_dp_mst_topology_mgr_set_mst(&intel_dp->mst_mgr,
+ intel_dp->is_mst);
+ }
}
intel_display_power_put(to_i915(dev), power_domain);
diff --git a/drivers/gpu/drm/i915/intel_dpio_phy.c b/drivers/gpu/drm/i915/intel_dpio_phy.c
index 2400554..d9e6482 100644
--- a/drivers/gpu/drm/i915/intel_dpio_phy.c
+++ b/drivers/gpu/drm/i915/intel_dpio_phy.c
@@ -369,3 +369,29 @@ void chv_phy_post_disable(struct intel_encoder *encoder)
*/
chv_phy_powergate_lanes(encoder, false, 0x0);
}
+
+void vlv_set_phy_signal_level(struct intel_encoder *encoder,
+ u32 demph_reg_value, u32 preemph_reg_value,
+ u32 uniqtranscale_reg_value, u32 tx3_demph)
+{
+ struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
+ struct intel_crtc *intel_crtc = to_intel_crtc(encoder->base.crtc);
+ struct intel_digital_port *dport = enc_to_dig_port(&encoder->base);
+ 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_TX_DW5(port), 0x00000000);
+ vlv_dpio_write(dev_priv, pipe, VLV_TX_DW4(port), demph_reg_value);
+ vlv_dpio_write(dev_priv, pipe, VLV_TX_DW2(port),
+ uniqtranscale_reg_value);
+ vlv_dpio_write(dev_priv, pipe, VLV_TX_DW3(port), 0x0C782040);
+
+ if (tx3_demph)
+ vlv_dpio_write(dev_priv, pipe, VLV_TX3_DW4(port), tx3_demph);
+
+ vlv_dpio_write(dev_priv, pipe, VLV_PCS_DW11(port), 0x00030000);
+ vlv_dpio_write(dev_priv, pipe, VLV_PCS_DW9(port), preemph_reg_value);
+ vlv_dpio_write(dev_priv, pipe, VLV_TX_DW5(port), DPIO_TX_OCALINIT_EN);
+ mutex_unlock(&dev_priv->sb_lock);
+}
diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c
index f424af5..9386772 100644
--- a/drivers/gpu/drm/i915/intel_hdmi.c
+++ b/drivers/gpu/drm/i915/intel_hdmi.c
@@ -1601,21 +1601,15 @@ static void vlv_hdmi_pre_enable(struct intel_encoder *encoder)
val |= 0x001000c4;
vlv_dpio_write(dev_priv, pipe, VLV_PCS_DW8(port), val);
- /* HDMI 1.0V-2dB */
- vlv_dpio_write(dev_priv, pipe, VLV_TX_DW5(port), 0);
- vlv_dpio_write(dev_priv, pipe, VLV_TX_DW4(port), 0x2b245f5f);
- vlv_dpio_write(dev_priv, pipe, VLV_TX_DW2(port), 0x5578b83a);
- vlv_dpio_write(dev_priv, pipe, VLV_TX_DW3(port), 0x0c782040);
- vlv_dpio_write(dev_priv, pipe, VLV_TX3_DW4(port), 0x2b247878);
- vlv_dpio_write(dev_priv, pipe, VLV_PCS_DW11(port), 0x00030000);
- vlv_dpio_write(dev_priv, pipe, VLV_PCS_DW9(port), 0x00002000);
- vlv_dpio_write(dev_priv, pipe, VLV_TX_DW5(port), DPIO_TX_OCALINIT_EN);
-
/* Program lane clock */
vlv_dpio_write(dev_priv, pipe, VLV_PCS_DW14(port), 0x00760018);
vlv_dpio_write(dev_priv, pipe, VLV_PCS_DW23(port), 0x00400888);
mutex_unlock(&dev_priv->sb_lock);
+ /* HDMI 1.0V-2dB */
+ vlv_set_phy_signal_level(encoder, 0x2b245f5f, 0x00002000, 0x5578b83a,
+ 0x2b247878);
+
intel_hdmi->set_infoframes(&encoder->base,
intel_crtc->config->has_hdmi_sink,
adjusted_mode);
--
2.4.11
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