diff options
| author | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2018-05-18 18:29:31 +0300 |
|---|---|---|
| committer | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2018-05-23 17:23:07 +0300 |
| commit | f0d2b758e05e209f4572182afade180cda22c9c8 (patch) | |
| tree | 4b21ac2baf05a79e6b54a48d11b5d50fcf7c98d5 /drivers/gpu/drm | |
| parent | 4c23dea48b0d8d9da2ac0911f8cee105f4394281 (diff) | |
drm/i915: WARN if power sequencer is not connected to the LVDS port on pre-ilk
We don't support using the power sequencer with other ports besides LVDS
on pre-ilk platforms. WARN if someone has mistakenly connected the power
sequencer to the wrong port.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180518152931.13104-7-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Diffstat (limited to 'drivers/gpu/drm')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_display.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 3a0709a6e4a0..aab1c6c58edf 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -1236,7 +1236,12 @@ void assert_panel_unlocked(struct drm_i915_private *dev_priv, enum pipe pipe) pp_reg = PP_CONTROL(pipe); panel_pipe = pipe; } else { + u32 port_sel; + pp_reg = PP_CONTROL(0); + port_sel = I915_READ(PP_ON_DELAYS(0)) & PANEL_PORT_SELECT_MASK; + + WARN_ON(port_sel != PANEL_PORT_SELECT_LVDS); intel_lvds_port_enabled(dev_priv, LVDS, &panel_pipe); } |