Seems more sensible this way, and reduces indent for the more common
case.
Signed-off-by: Jani Nikula <jani.nik...@intel.com>
---
drivers/gpu/drm/i915/intel_opregion.c | 41 +++++++++++++++++------------------
1 file changed, 20 insertions(+), 21 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_opregion.c
b/drivers/gpu/drm/i915/intel_opregion.c
index 0ab92dd570b0..96b9801e8eb5 100644
--- a/drivers/gpu/drm/i915/intel_opregion.c
+++ b/drivers/gpu/drm/i915/intel_opregion.c
@@ -911,8 +911,8 @@ int intel_opregion_setup(struct drm_i915_private *dev_priv)
char buf[sizeof(OPREGION_SIGNATURE)];
int err = 0;
void *base;
- const void *vbt = NULL;
- u32 vbt_size = 0;
+ const void *vbt;
+ u32 vbt_size;
BUILD_BUG_ON(sizeof(struct opregion_header) != 0x100);
BUILD_BUG_ON(sizeof(struct opregion_acpi) != 0x100);
@@ -975,30 +975,29 @@ int intel_opregion_setup(struct drm_i915_private
*dev_priv)
MEMREMAP_WB);
vbt = opregion->rvda;
vbt_size = opregion->asle->rvds;
+ if (intel_bios_is_valid_vbt(vbt, vbt_size)) {
+ DRM_DEBUG_KMS("Found valid VBT in ACPI OpRegion
(RVDA)\n");
+ opregion->vbt = vbt;
+ opregion->vbt_size = vbt_size;
+ goto out;
+ }
}
+ vbt = base + OPREGION_VBT_OFFSET;
+ /*
+ * The VBT specification says that if the ASLE ext mailbox is not used
+ * its area is reserved, but on some CHT boards the VBT extends into the
+ * ASLE ext area. Allow this even though it is against the spec, so we
+ * do not end up rejecting the VBT on those boards (and end up not
+ * finding the LCD panel because of this).
+ */
+ vbt_size = (mboxes & MBOX_ASLE_EXT) ?
+ OPREGION_ASLE_EXT_OFFSET : OPREGION_SIZE;
+ vbt_size -= OPREGION_VBT_OFFSET;
if (intel_bios_is_valid_vbt(vbt, vbt_size)) {
- DRM_DEBUG_KMS("Found valid VBT in ACPI OpRegion (RVDA)\n");
+ DRM_DEBUG_KMS("Found valid VBT in ACPI OpRegion (Mailbox
#4)\n");
opregion->vbt = vbt;
opregion->vbt_size = vbt_size;
- } else {
- vbt = base + OPREGION_VBT_OFFSET;
- /*
- * The VBT specification says that if the ASLE ext mailbox is
- * not used its area is reserved, but on some CHT boards the VBT
- * extends into the ASLE ext area. Allow this even though it is
- * against the spec, so we do not end up rejecting the VBT on
- * those boards (and end up not finding the LCD panel because of
- * this).
- */
- vbt_size = (mboxes & MBOX_ASLE_EXT) ?
- OPREGION_ASLE_EXT_OFFSET : OPREGION_SIZE;
- vbt_size -= OPREGION_VBT_OFFSET;
- if (intel_bios_is_valid_vbt(vbt, vbt_size)) {
- DRM_DEBUG_KMS("Found valid VBT in ACPI OpRegion
(Mailbox #4)\n");
- opregion->vbt = vbt;
- opregion->vbt_size = vbt_size;
- }
}
out:
--
2.1.4
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