[Intel-gfx] [PATCH 08/10] drm/i915: Expect child dev size of 22 bytes for VBT < 106

ville.syrjala at linux.intel.com ville.syrjala at linux.intel.com
Mon Dec 14 08:23:47 PST 2015


From: Ville Syrjälä <ville.syrjala at linux.intel.com>

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 at linux.intel.com>
---
 drivers/gpu/drm/i915/intel_bios.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/intel_bios.c b/drivers/gpu/drm/i915/intel_bios.c
index 770b825dabc0..c99a96989113 100644
--- a/drivers/gpu/drm/i915/intel_bios.c
+++ b/drivers/gpu/drm/i915/intel_bios.c
@@ -1089,7 +1089,9 @@ 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);
-- 
2.4.10



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