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| author | Jani Nikula | 2017-09-19 17:38:13 +0200 |
|---|---|---|
| committer | Rodrigo Vivi | 2017-09-26 18:14:20 +0200 |
| commit | 2d8f63297b9f0b430c96329893667c0bfdcbd47e (patch) | |
| tree | 897ef7fc03c3baa3ea2214b08645c5b2cbcedd47 /drivers/gpu/drm/i915/intel_modes.c | |
| parent | Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/vir... (diff) | |
| download | kernel-qcow2-linux-2d8f63297b9f0b430c96329893667c0bfdcbd47e.tar.gz kernel-qcow2-linux-2d8f63297b9f0b430c96329893667c0bfdcbd47e.tar.xz kernel-qcow2-linux-2d8f63297b9f0b430c96329893667c0bfdcbd47e.zip | |
drm/i915: always update ELD connector type after get modes
drm_edid_to_eld() initializes the connector ELD to zero, overwriting the
ELD connector type initialized in intel_audio_codec_enable(). If
userspace does getconnector and thus get_modes after modeset, a
subsequent audio component i915_audio_component_get_eld() call will
receive an ELD without the connector type properly set. It's fine for
HDMI, but screws up audio for DP.
Always set the ELD connector type at intel_connector_update_modes()
based on the connector type. We can drop the connector type update from
intel_audio_codec_enable().
Credits to Joseph Nuzman <jnuzman@gmail.com> for figuring this out.
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Joseph Nuzman <jnuzman@gmail.com>
Reported-by: Joseph Nuzman <jnuzman@gmail.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=101583
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Tested-by: Joseph Nuzman <jnuzman@gmail.com>
Cc: stable@vger.kernel.org # v4.10+, maybe earlier
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20170919153813.29808-1-jani.nikula@intel.com
(cherry picked from commit d81fb7fd9436e81fda67e5bc8ed0713aa28d3db2)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Diffstat (limited to 'drivers/gpu/drm/i915/intel_modes.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_modes.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_modes.c b/drivers/gpu/drm/i915/intel_modes.c index 951e834dd274..28a778b785ac 100644 --- a/drivers/gpu/drm/i915/intel_modes.c +++ b/drivers/gpu/drm/i915/intel_modes.c @@ -30,6 +30,21 @@ #include "intel_drv.h" #include "i915_drv.h" +static void intel_connector_update_eld_conn_type(struct drm_connector *connector) +{ + u8 conn_type; + + if (connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort || + connector->connector_type == DRM_MODE_CONNECTOR_eDP) { + conn_type = DRM_ELD_CONN_TYPE_DP; + } else { + conn_type = DRM_ELD_CONN_TYPE_HDMI; + } + + connector->eld[DRM_ELD_SAD_COUNT_CONN_TYPE] &= ~DRM_ELD_CONN_TYPE_MASK; + connector->eld[DRM_ELD_SAD_COUNT_CONN_TYPE] |= conn_type; +} + /** * intel_connector_update_modes - update connector from edid * @connector: DRM connector device to use @@ -44,6 +59,8 @@ int intel_connector_update_modes(struct drm_connector *connector, ret = drm_add_edid_modes(connector, edid); drm_edid_to_eld(connector, edid); + intel_connector_update_eld_conn_type(connector); + return ret; } |