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path: root/drivers/gpu/drm/i915/intel_dp.c
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Diffstat (limited to 'drivers/gpu/drm/i915/intel_dp.c')
-rw-r--r--drivers/gpu/drm/i915/intel_dp.c71
1 files changed, 32 insertions, 39 deletions
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 8f17f8fbd0b1..7df5085973e9 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -542,7 +542,7 @@ intel_dp_aux_native_write(struct intel_dp *intel_dp,
return -E2BIG;
intel_dp_check_edp(intel_dp);
- msg[0] = AUX_NATIVE_WRITE << 4;
+ msg[0] = DP_AUX_NATIVE_WRITE << 4;
msg[1] = address >> 8;
msg[2] = address & 0xff;
msg[3] = send_bytes - 1;
@@ -552,9 +552,10 @@ intel_dp_aux_native_write(struct intel_dp *intel_dp,
ret = intel_dp_aux_ch(intel_dp, msg, msg_bytes, &ack, 1);
if (ret < 0)
return ret;
- if ((ack & AUX_NATIVE_REPLY_MASK) == AUX_NATIVE_REPLY_ACK)
+ ack >>= 4;
+ if ((ack & DP_AUX_NATIVE_REPLY_MASK) == DP_AUX_NATIVE_REPLY_ACK)
break;
- else if ((ack & AUX_NATIVE_REPLY_MASK) == AUX_NATIVE_REPLY_DEFER)
+ else if ((ack & DP_AUX_NATIVE_REPLY_MASK) == DP_AUX_NATIVE_REPLY_DEFER)
udelay(100);
else
return -EIO;
@@ -586,7 +587,7 @@ intel_dp_aux_native_read(struct intel_dp *intel_dp,
return -E2BIG;
intel_dp_check_edp(intel_dp);
- msg[0] = AUX_NATIVE_READ << 4;
+ msg[0] = DP_AUX_NATIVE_READ << 4;
msg[1] = address >> 8;
msg[2] = address & 0xff;
msg[3] = recv_bytes - 1;
@@ -601,12 +602,12 @@ intel_dp_aux_native_read(struct intel_dp *intel_dp,
return -EPROTO;
if (ret < 0)
return ret;
- ack = reply[0];
- if ((ack & AUX_NATIVE_REPLY_MASK) == AUX_NATIVE_REPLY_ACK) {
+ ack = reply[0] >> 4;
+ if ((ack & DP_AUX_NATIVE_REPLY_MASK) == DP_AUX_NATIVE_REPLY_ACK) {
memcpy(recv, reply + 1, ret - 1);
return ret - 1;
}
- else if ((ack & AUX_NATIVE_REPLY_MASK) == AUX_NATIVE_REPLY_DEFER)
+ else if ((ack & DP_AUX_NATIVE_REPLY_MASK) == DP_AUX_NATIVE_REPLY_DEFER)
udelay(100);
else
return -EIO;
@@ -633,12 +634,12 @@ intel_dp_i2c_aux_ch(struct i2c_adapter *adapter, int mode,
intel_dp_check_edp(intel_dp);
/* Set up the command byte */
if (mode & MODE_I2C_READ)
- msg[0] = AUX_I2C_READ << 4;
+ msg[0] = DP_AUX_I2C_READ << 4;
else
- msg[0] = AUX_I2C_WRITE << 4;
+ msg[0] = DP_AUX_I2C_WRITE << 4;
if (!(mode & MODE_I2C_STOP))
- msg[0] |= AUX_I2C_MOT << 4;
+ msg[0] |= DP_AUX_I2C_MOT << 4;
msg[1] = address >> 8;
msg[2] = address;
@@ -675,17 +676,17 @@ intel_dp_i2c_aux_ch(struct i2c_adapter *adapter, int mode,
goto out;
}
- switch (reply[0] & AUX_NATIVE_REPLY_MASK) {
- case AUX_NATIVE_REPLY_ACK:
+ switch ((reply[0] >> 4) & DP_AUX_NATIVE_REPLY_MASK) {
+ case DP_AUX_NATIVE_REPLY_ACK:
/* I2C-over-AUX Reply field is only valid
* when paired with AUX ACK.
*/
break;
- case AUX_NATIVE_REPLY_NACK:
+ case DP_AUX_NATIVE_REPLY_NACK:
DRM_DEBUG_KMS("aux_ch native nack\n");
ret = -EREMOTEIO;
goto out;
- case AUX_NATIVE_REPLY_DEFER:
+ case DP_AUX_NATIVE_REPLY_DEFER:
/*
* For now, just give more slack to branch devices. We
* could check the DPCD for I2C bit rate capabilities,
@@ -706,18 +707,18 @@ intel_dp_i2c_aux_ch(struct i2c_adapter *adapter, int mode,
goto out;
}
- switch (reply[0] & AUX_I2C_REPLY_MASK) {
- case AUX_I2C_REPLY_ACK:
+ switch ((reply[0] >> 4) & DP_AUX_I2C_REPLY_MASK) {
+ case DP_AUX_I2C_REPLY_ACK:
if (mode == MODE_I2C_READ) {
*read_byte = reply[1];
}
ret = reply_bytes - 1;
goto out;
- case AUX_I2C_REPLY_NACK:
+ case DP_AUX_I2C_REPLY_NACK:
DRM_DEBUG_KMS("aux_i2c nack\n");
ret = -EREMOTEIO;
goto out;
- case AUX_I2C_REPLY_DEFER:
+ case DP_AUX_I2C_REPLY_DEFER:
DRM_DEBUG_KMS("aux_i2c defer\n");
udelay(100);
break;
@@ -3324,11 +3325,19 @@ intel_trans_dp_port_sel(struct drm_crtc *crtc)
}
/* check the VBT to see whether the eDP is on DP-D port */
-bool intel_dpd_is_edp(struct drm_device *dev)
+bool intel_dp_is_edp(struct drm_device *dev, enum port port)
{
struct drm_i915_private *dev_priv = dev->dev_private;
union child_device_config *p_child;
int i;
+ static const short port_mapping[] = {
+ [PORT_B] = PORT_IDPB,
+ [PORT_C] = PORT_IDPC,
+ [PORT_D] = PORT_IDPD,
+ };
+
+ if (port == PORT_A)
+ return true;
if (!dev_priv->vbt.child_dev_num)
return false;
@@ -3336,7 +3345,7 @@ bool intel_dpd_is_edp(struct drm_device *dev)
for (i = 0; i < dev_priv->vbt.child_dev_num; i++) {
p_child = dev_priv->vbt.child_dev + i;
- if (p_child->common.dvo_port == PORT_IDPD &&
+ if (p_child->common.dvo_port == port_mapping[port] &&
(p_child->common.device_type & DEVICE_TYPE_eDP_BITS) ==
(DEVICE_TYPE_eDP & DEVICE_TYPE_eDP_BITS))
return true;
@@ -3614,26 +3623,10 @@ intel_dp_init_connector(struct intel_digital_port *intel_dig_port,
intel_dp->DP = I915_READ(intel_dp->output_reg);
intel_dp->attached_connector = intel_connector;
- type = DRM_MODE_CONNECTOR_DisplayPort;
- /*
- * FIXME : We need to initialize built-in panels before external panels.
- * For X0, DP_C is fixed as eDP. Revisit this as part of VLV eDP cleanup
- */
- switch (port) {
- case PORT_A:
+ if (intel_dp_is_edp(dev, port))
type = DRM_MODE_CONNECTOR_eDP;
- break;
- case PORT_C:
- if (IS_VALLEYVIEW(dev))
- type = DRM_MODE_CONNECTOR_eDP;
- break;
- case PORT_D:
- if (HAS_PCH_SPLIT(dev) && intel_dpd_is_edp(dev))
- type = DRM_MODE_CONNECTOR_eDP;
- break;
- default: /* silence GCC warning */
- break;
- }
+ else
+ type = DRM_MODE_CONNECTOR_DisplayPort;
/*
* For eDP we always set the encoder type to INTEL_OUTPUT_EDP, but
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