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drm/i915: Expect child dev size of 22 bytes for VBT < 106

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My 830 has VBT version 105 with child device size of 22 bytes.
Let's assume that's correct and adjust our expectations.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1450110229-30450-9-git-send-email-ville.syrjala@linux.intel.com
Acked-by: Jani Nikula <jani.nikula@intel.com>
This commit is contained in:
Ville Syrjälä 2015-12-14 18:23:47 +02:00
parent 52b69c849a
commit 7244f309b0
1 changed files with 3 additions and 1 deletions
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4
drivers/gpu/drm/i915/intel_bios.c
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@ -1157,7 +1157,9 @@ parse_device_mapping(struct drm_i915_private *dev_priv,
DRM_DEBUG_KMS("No general definition block is found, no devices defined.\n");
return;
}
if (bdb->version < 109) {
if (bdb->version < 106) {
expected_size = 22;
} else if (bdb->version < 109) {
expected_size = 27;
} else if (bdb->version < 195) {
BUILD_BUG_ON(sizeof(struct old_child_dev_config) != 33);