diff options
| author | Zhenyu Wang <zhenyuw@linux.intel.com> | 2010-09-19 05:09:06 (GMT) |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2010-10-19 08:17:41 (GMT) |
| commit | a9756bb5b25d5d997df0c5d8c95db01292191bea (patch) | |
| tree | c1d27fcd8a006cef31f40b71b01ed9e11168d938 /drivers/gpu | |
| parent | 8fe9790d1652e7c306c862ea102a5e6126b412e1 (diff) | |
| download | linux-fsl-qoriq-a9756bb5b25d5d997df0c5d8c95db01292191bea.tar.xz | |
drm/i915: Enable DisplayPort audio
This will turn on DP audio output by checking monitor's audio
capability.
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
[ickle: rebase onto recent changes and rearranged for clarity]
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_dp.c | 62 |
1 files changed, 41 insertions, 21 deletions
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index 350c541..42cd528 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -1458,9 +1458,8 @@ intel_dp_check_link_status(struct intel_dp *intel_dp) } static enum drm_connector_status -ironlake_dp_detect(struct drm_connector *connector) +ironlake_dp_detect(struct intel_dp *intel_dp) { - struct intel_dp *intel_dp = intel_attached_dp(connector); enum drm_connector_status status; /* Can't disconnect eDP */ @@ -1470,8 +1469,8 @@ ironlake_dp_detect(struct drm_connector *connector) status = connector_status_disconnected; if (intel_dp_aux_native_read(intel_dp, 0x000, intel_dp->dpcd, - sizeof (intel_dp->dpcd)) == sizeof (intel_dp->dpcd)) - { + sizeof (intel_dp->dpcd)) + == sizeof(intel_dp->dpcd)) { if (intel_dp->dpcd[0] != 0) status = connector_status_connected; } @@ -1480,25 +1479,13 @@ ironlake_dp_detect(struct drm_connector *connector) return status; } -/** - * Uses CRT_HOTPLUG_EN and CRT_HOTPLUG_STAT to detect DP connection. - * - * \return true if DP port is connected. - * \return false if DP port is disconnected. - */ static enum drm_connector_status -intel_dp_detect(struct drm_connector *connector, bool force) +g4x_dp_detect(struct intel_dp *intel_dp) { - struct intel_dp *intel_dp = intel_attached_dp(connector); struct drm_device *dev = intel_dp->base.base.dev; struct drm_i915_private *dev_priv = dev->dev_private; - uint32_t temp, bit; enum drm_connector_status status; - - intel_dp->has_audio = false; - - if (HAS_PCH_SPLIT(dev)) - return ironlake_dp_detect(connector); + uint32_t temp, bit; switch (intel_dp->output_reg) { case DP_B: @@ -1520,14 +1507,47 @@ intel_dp_detect(struct drm_connector *connector, bool force) return connector_status_disconnected; status = connector_status_disconnected; - if (intel_dp_aux_native_read(intel_dp, - 0x000, intel_dp->dpcd, + if (intel_dp_aux_native_read(intel_dp, 0x000, intel_dp->dpcd, sizeof (intel_dp->dpcd)) == sizeof (intel_dp->dpcd)) { if (intel_dp->dpcd[0] != 0) status = connector_status_connected; } - return status; + + return bit; +} + +/** + * Uses CRT_HOTPLUG_EN and CRT_HOTPLUG_STAT to detect DP connection. + * + * \return true if DP port is connected. + * \return false if DP port is disconnected. + */ +static enum drm_connector_status +intel_dp_detect(struct drm_connector *connector, bool force) +{ + struct intel_dp *intel_dp = intel_attached_dp(connector); + struct drm_device *dev = intel_dp->base.base.dev; + enum drm_connector_status status; + struct edid *edid = NULL; + + intel_dp->has_audio = false; + + if (HAS_PCH_SPLIT(dev)) + status = ironlake_dp_detect(intel_dp); + else + status = g4x_dp_detect(intel_dp); + if (status != connector_status_connected) + return status; + + edid = drm_get_edid(connector, &intel_dp->adapter); + if (edid) { + intel_dp->has_audio = drm_detect_monitor_audio(edid); + connector->display_info.raw_edid = NULL; + kfree(edid); + } + + return connector_status_connected; } static int intel_dp_get_modes(struct drm_connector *connector) |