Print a debug message if the FB plane[0] offset is not 0 as expected, to
help understainding an add FB IOCTL fail.
Cc: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
Cc: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
Cc: Mika Kahola <mika.kahola@xxxxxxxxx>
Signed-off-by: Imre Deak <imre.deak@xxxxxxxxx>
---
drivers/gpu/drm/i915/display/intel_display.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index bbc9cf288067..2c2450d3469b 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -16912,8 +16912,11 @@ static int intel_framebuffer_init(struct intel_framebuffer *intel_fb,
}
/* FIXME need to adjust LINOFF/TILEOFF accordingly. */
- if (mode_cmd->offsets[0] != 0)
+ if (mode_cmd->offsets[0] != 0) {
+ DRM_DEBUG_KMS("plane 0 offset (0x%08x) must be 0\n",
+ mode_cmd->offsets[0]);
goto err;
+ }
drm_helper_mode_fill_fb_struct(&dev_priv->drm, fb, mode_cmd);
--
2.23.1
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