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drm/i915: Reject 90/270 degree rotated initial fbs

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We don't currently handle the initial fb readout correctly
for 90/270 degree rotated scanout. Reject it.

Cc: stable@vger.kernel.org
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201020194330.28568-1-ville.syrjala@linux.intel.com
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Ville Syrjälä 2020-10-20 22:43:29 +03:00
parent c6073d4c92
commit a40a8305a7
1 changed files with 4 additions and 0 deletions
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4
drivers/gpu/drm/i915/display/intel_display.c
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@ -10802,6 +10802,10 @@ skl_get_initial_plane_config(struct intel_crtc *crtc,
val & PLANE_CTL_FLIP_HORIZONTAL)
plane_config->rotation |= DRM_MODE_REFLECT_X;
/* 90/270 degree rotation would require extra work */
if (drm_rotation_90_or_270(plane_config->rotation))
goto error;
base = intel_de_read(dev_priv, PLANE_SURF(pipe, plane_id)) & 0xfffff000;
plane_config->base = base;