diff options
| author |   Deepak M <m.deepak@intel.com> | 2016-03-30 17:03:40 +0300 |
|---|---|---|
| committer |   Jani Nikula <jani.nikula@intel.com> | 2016-04-26 15:49:27 +0300 |
| commit | 9f7c5b17302489f4b880b9adcd7bd78e3e9fcac9 (patch) | |
| tree | 04ca0487a486ecd8f1bff7effd894923c5b116c2 /drivers/gpu/drm/i915/intel_bios.c | |
| parent | drm/i915: Add Backlight Control using DPCD for eDP connectors (v9) (diff) | |
| download | linux-dev-9f7c5b17302489f4b880b9adcd7bd78e3e9fcac9.tar.xz linux-dev-9f7c5b17302489f4b880b9adcd7bd78e3e9fcac9.zip | |
drm/i915: Parsing the PWM cntrl and CABC ON/OFF fields in VBT
For dual link panel scenarios there are new fields added in the
VBT which indicate on which port the PWM cntrl and CABC ON/OFF
commands needs to be sent.
v2: Moving the comment to intel_dsi.h(Jani)
v3: Renaming the field names (Jani)
v4 by Jani: make this patch only about VBT
Cc: Jani Nikula <jani.nikula@intel.com>
Cc: Daniel Vetter <daniel.vetter@intel.com>
Cc: Yetunde Adebisi <yetundex.adebisi@intel.com>
Signed-off-by: Deepak M <m.deepak@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1459346623-30752-2-git-send-email-jani.nikula@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/intel_bios.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_bios.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_bios.c b/drivers/gpu/drm/i915/intel_bios.c index e72dd9a8d6bf..dbbd59171722 100644 --- a/drivers/gpu/drm/i915/intel_bios.c +++ b/drivers/gpu/drm/i915/intel_bios.c @@ -763,6 +763,16 @@ parse_mipi_config(struct drm_i915_private *dev_priv, return; } + /* + * These fields are introduced from the VBT version 197 onwards, + * so making sure that these bits are set zero in the previous + * versions. + */ + if (dev_priv->vbt.dsi.config->dual_link && bdb->version < 197) { + dev_priv->vbt.dsi.config->dl_dcs_cabc_ports = 0; + dev_priv->vbt.dsi.config->dl_dcs_backlight_ports = 0; + } + /* We have mandatory mipi config blocks. Initialize as generic panel */ dev_priv->vbt.dsi.panel_id = MIPI_DSI_GENERIC_PANEL_ID; } |