diff options
| author | Uma Shankar <uma.shankar@intel.com> | 2017-02-08 16:20:56 +0530 |
|---|---|---|
| committer | Jani Nikula <jani.nikula@intel.com> | 2017-02-16 17:22:09 +0200 |
| commit | bbdf0b2ff32aa75c7bd167569130e9391d2e6282 (patch) | |
| tree | 3cfe799111b19f7af00f5f7c10605d93bfbde5c4 /drivers/gpu/drm/i915/intel_dsi.c | |
| parent | eba4daf0dc5861703000f58b1d51110ced2b2fb5 (diff) | |
drm/i915/bxt: Disable device ready before shutdown command
Disable device ready before MIPI port shutdown command.
This helps to avoid mipi split screen issues.
Signed-off-by: Uma Shankar <uma.shankar@intel.com>
Signed-off-by: Vidya Srinivas <vidya.srinivas@intel.com>
Reviewed-by: Bob Paauwe <bob.j.paauwe@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1486551058-22596-8-git-send-email-vidya.srinivas@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/intel_dsi.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_dsi.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_dsi.c b/drivers/gpu/drm/i915/intel_dsi.c index e7e823d00444..c26fe4fc0819 100644 --- a/drivers/gpu/drm/i915/intel_dsi.c +++ b/drivers/gpu/drm/i915/intel_dsi.c @@ -612,6 +612,8 @@ static void intel_dsi_pre_disable(struct intel_encoder *encoder, struct intel_crtc_state *old_crtc_state, struct drm_connector_state *old_conn_state) { + struct drm_device *dev = encoder->base.dev; + struct drm_i915_private *dev_priv = dev->dev_private; struct intel_dsi *intel_dsi = enc_to_intel_dsi(&encoder->base); enum port port; @@ -619,6 +621,15 @@ static void intel_dsi_pre_disable(struct intel_encoder *encoder, intel_panel_disable_backlight(intel_dsi->attached_connector); + /* + * Disable Device ready before the port shutdown in order + * to avoid split screen + */ + if (IS_BROXTON(dev_priv)) { + for_each_dsi_port(port, intel_dsi->ports) + I915_WRITE(MIPI_DEVICE_READY(port), 0); + } + if (is_vid_mode(intel_dsi)) { /* Send Shutdown command to the panel in LP mode */ for_each_dsi_port(port, intel_dsi->ports) |