diff options
| author | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2018-01-17 22:21:46 +0300 |
|---|---|---|
| committer | Lyude Paul <lyude@redhat.com> | 2018-03-07 01:57:24 +0300 |
| commit | dba14b27dd3ca5ce5b3a1d538862e7dce556dba7 (patch) | |
| tree | 96f6385ec799f485d40b92ef2c96442978e9b142 /drivers/gpu/drm/i915/intel_drv.h | |
| parent | 1b2cb026dc8b6f5cc4043031896a27745ad6f898 (diff) | |
| download | linux-dba14b27dd3ca5ce5b3a1d538862e7dce556dba7.tar.xz | |
drm/i915: Reinitialize sink scrambling/TMDS clock ratio on HPD
The LG 4k TV I have doesn't deassert HPD when I turn the TV off, but
when I turn it back on it will pulse the HPD line. By that time it has
forgotten everything we told it about scrambling and the clock ratio.
Hence if we want to get a picture out if it again we have to tell it
whether we're currently sending scrambled data or not. Implement
that via the encoder->hotplug() hook.
v2: Force a full modeset to not follow the HDMI 2.0 spec more
closely (Shashank)
[pushed with whitespace fixes to make sparse happy]
Cc: Shashank Sharma <shashank.sharma@intel.com>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Lyude Paul <lyude@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180117192149.17760-1-ville.syrjala@linux.intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/intel_drv.h')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_drv.h | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h index 652b11e788cc..2ae6d5548171 100644 --- a/drivers/gpu/drm/i915/intel_drv.h +++ b/drivers/gpu/drm/i915/intel_drv.h @@ -215,7 +215,8 @@ struct intel_encoder { enum intel_output_type type; enum port port; unsigned int cloneable; - void (*hot_plug)(struct intel_encoder *); + bool (*hotplug)(struct intel_encoder *encoder, + struct intel_connector *connector); enum intel_output_type (*compute_output_type)(struct intel_encoder *, struct intel_crtc_state *, struct drm_connector_state *); @@ -1704,7 +1705,8 @@ int intel_dsi_dcs_init_backlight_funcs(struct intel_connector *intel_connector); void intel_dvo_init(struct drm_i915_private *dev_priv); /* intel_hotplug.c */ void intel_hpd_poll_init(struct drm_i915_private *dev_priv); - +bool intel_encoder_hotplug(struct intel_encoder *encoder, + struct intel_connector *connector); /* legacy fbdev emulation in intel_fbdev.c */ #ifdef CONFIG_DRM_FBDEV_EMULATION |