diff options
| author | Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com> | 2016-11-15 12:59:06 -0800 |
|---|---|---|
| committer | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2016-12-05 16:23:18 +0200 |
| commit | 22a2c8e0457f5d66db0819a49beb8c119d8f7a97 (patch) | |
| tree | aa939ec90eb7e9462787a422e0a7ae3a3470cf87 /drivers/gpu/drm/i915/intel_drv.h | |
| parent | fd81c44eba9ca1e78d0601f37b5d7819df522aa7 (diff) | |
drm/i915: Validate mode against max. link data rate for DP MST
Not validating the mode rate against max. link rate results in not pruning
invalid modes. For e.g, a HBR2 5.4 Gbps 2-lane configuration does not
support 4k@60Hz. But, we do not reject this mode.
So, make use of the helpers in intel_dp to validate mode data rate against
max. link data rate of a configuration.
v3: Renamed local variables again for consistency (Manasi)
v2: Renamed mode data rate local variable to be more explanatory.
Signed-off-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1479243546-17189-1-git-send-email-dhinakaran.pandiyan@intel.com
Signed-off-by: Ville Syrjälä <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 | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h index 1d126c29598f..fd77a3ba857b 100644 --- a/drivers/gpu/drm/i915/intel_drv.h +++ b/drivers/gpu/drm/i915/intel_drv.h @@ -1457,6 +1457,8 @@ bool intel_dp_read_dpcd(struct intel_dp *intel_dp); bool __intel_dp_read_desc(struct intel_dp *intel_dp, struct intel_dp_desc *desc); bool intel_dp_read_desc(struct intel_dp *intel_dp); +int intel_dp_link_required(int pixel_clock, int bpp); +int intel_dp_max_data_rate(int max_link_clock, int max_lanes); /* intel_dp_aux_backlight.c */ int intel_dp_aux_init_backlight_funcs(struct intel_connector *intel_connector); |