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| author | Zhao Yakui <yakui.zhao@intel.com> | 2010-01-06 09:49:31 +0800 |
|---|---|---|
| committer | Eric Anholt <eric@anholt.net> | 2010-01-12 14:40:03 -0800 |
| commit | 6207937d4feea000913e8ca23fe20c7744be7847 (patch) | |
| tree | e2d68514bfc43797aaf957d1abefe874345e7a3e /drivers/gpu/drm/i915/intel_dp.c | |
| parent | d8e292093a3a78a7967757e90abbe64869e4cb7c (diff) | |
| download | linux-6207937d4feea000913e8ca23fe20c7744be7847.tar.gz linux-6207937d4feea000913e8ca23fe20c7744be7847.tar.bz2 linux-6207937d4feea000913e8ca23fe20c7744be7847.zip | |
drm/i915: Don't use the child device parsed from VBT to setup HDMI/DP
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/
6e36595a2131e7ed5ee2674be54b2713ba7f0490) 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>
Diffstat (limited to 'drivers/gpu/drm/i915/intel_dp.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_dp.c | 52 |
1 files changed, 1 insertions, 51 deletions
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index 1349d9fd01c4..0ec07e43d6cc 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -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) |