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drm/i915: Don't use the child device parsed from VBT to setup HDMI/DP

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On some boxes the BIOS will report different child device arrays when
the system is booted with/without the dock. In such case the HDMI/DP
port can't be setup correctly.  So revert two commits
(fc816655236cd9da162356e96e74c7cfb0834d92/
6e36595a21) that use the child device
parsed from VBT to setup HDMI/DP.

http://bugzilla.kernel.org/show_bug.cgi?id=14854
http://bugzilla.kernel.org/show_bug.cgi?id=14860

Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Tested-by: Sean Young <sean@mess.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
This commit is contained in:
Zhao Yakui
2010-01-06 09:49:31 +08:00
committed by Eric Anholt
parent d8e292093a
commit 6207937d4f
2 changed files with 0 additions and 100 deletions
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50
drivers/gpu/drm/i915/intel_dp.c
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@@ -1289,53 +1289,7 @@ intel_dp_hot_plug(struct intel_output *intel_output)
if (dp_priv->dpms_mode == DRM_MODE_DPMS_ON)
intel_dp_check_link_status(intel_output);
}
/*
* Enumerate the child dev array parsed from VBT to check whether
* the given DP is present.
* If it is present, return 1.
* If it is not present, return false.
* If no child dev is parsed from VBT, it is assumed that the given
* DP is present.
*/
static int dp_is_present_in_vbt(struct drm_device *dev, int dp_reg)
{
struct drm_i915_private *dev_priv = dev->dev_private;
struct child_device_config *p_child;
int i, dp_port, ret;
if (!dev_priv->child_dev_num)
return 1;
dp_port = 0;
if (dp_reg == DP_B || dp_reg == PCH_DP_B)
dp_port = PORT_IDPB;
else if (dp_reg == DP_C || dp_reg == PCH_DP_C)
dp_port = PORT_IDPC;
else if (dp_reg == DP_D || dp_reg == PCH_DP_D)
dp_port = PORT_IDPD;
ret = 0;
for (i = 0; i < dev_priv->child_dev_num; i++) {
p_child = dev_priv->child_dev + i;
/*
* If the device type is not DP, continue.
*/
if (p_child->device_type != DEVICE_TYPE_DP &&
p_child->device_type != DEVICE_TYPE_eDP)
continue;
/* Find the eDP port */
if (dp_reg == DP_A && p_child->device_type == DEVICE_TYPE_eDP) {
ret = 1;
break;
}
/* Find the DP port */
if (p_child->dvo_port == dp_port) {
ret = 1;
break;
}
}
return ret;
}
void
intel_dp_init(struct drm_device *dev, int output_reg)
{
@@ -1345,10 +1299,6 @@ intel_dp_init(struct drm_device *dev, int output_reg)
struct intel_dp_priv *dp_priv;
const char *name = NULL;
if (!dp_is_present_in_vbt(dev, output_reg)) {
DRM_DEBUG_KMS("DP is not present. Ignore it\n");
return;
}
intel_output = kcalloc(sizeof(struct intel_output) +
sizeof(struct intel_dp_priv), 1, GFP_KERNEL);
if (!intel_output)