Commit fa05178c authored Jun 01, 2016 by Chris Wilson

drm/i915: Silence "unexpected child device config size" for VBT on 845g



My old 845g complains that the child_device_size inside its VBT,
version 110, is incorrect. Let's fiddle with the version matching such
that it works with this VBT (i.e. treat BIOS v110 as having the same size
as v108).

Fixes [drm:intel_bios_init] *ERROR* Unexpected child device config
size 27 (expected 33 for VBT version 110)

Whether this is correct, no one knows - but it works for this particular
machine.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1464800923-6054-1-git-send-email-chris@chris-wilson.co.uk

parent 5599617e

drivers/gpu/drm/i915/intel_bios.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -1206,7 +1206,7 @@ parse_device_mapping(struct drm_i915_private *dev_priv,
		}
		if (bdb->version < 106) {
		expected_size = 22;
		} else if (bdb->version < 109) {
		} else if (bdb->version < 111) {
		expected_size = 27;
		} else if (bdb->version < 195) {
		BUILD_BUG_ON(sizeof(struct old_child_dev_config) != 33);