[Intel-gfx] [PATCH 04/11] drm/i915/bios: move debug logging about VBT source to intel_parse_bios()

[Jani Nikula]

The decision about which source will be used for VBT is done in
intel_parse_bios(), not in the VBT validation function. Make the VBT
validation function strictly about validation, and move the debug
logging to where it logically belongs.

This will make even more sense in the future when the validation for
ACPI OpRegion based VBT takes place at OpRegion setup time.

Signed-off-by: Jani Nikula <jani.nikula at intel.com>
---
 drivers/gpu/drm/i915/intel_bios.c | 17 ++++++++++-------
 1 file changed, 10 insertions(+), 7 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_bios.c b/drivers/gpu/drm/i915/intel_bios.c
index 2fc2a994f395..45a90d4a4a81 100644
--- a/drivers/gpu/drm/i915/intel_bios.c
+++ b/drivers/gpu/drm/i915/intel_bios.c
@@ -1223,8 +1223,7 @@ static const struct bdb_header *get_bdb_header(const struct vbt_header *vbt)
 
 static const struct vbt_header *validate_vbt(const void *base,
 					     size_t size,
-					     const void *_vbt,
-					     const char *source)
+					     const void *_vbt)
 {
 	size_t offset = _vbt - base;
 	const struct vbt_header *vbt = _vbt;
@@ -1255,8 +1254,6 @@ static const struct vbt_header *validate_vbt(const void *base,
 		return NULL;
 	}
 
-	DRM_DEBUG_KMS("Using VBT from %s: %20s\n",
-		      source, vbt->signature);
 	return vbt;
 }
 
@@ -1276,7 +1273,7 @@ static const struct vbt_header *find_vbt(void __iomem *bios, size_t size)
 			 */
 			void *_bios = (void __force *) bios;
 
-			vbt = validate_vbt(_bios, size, _bios + i, "PCI ROM");
+			vbt = validate_vbt(_bios, size, _bios + i);
 			break;
 		}
 	}
@@ -1309,8 +1306,11 @@ intel_parse_bios(struct drm_device *dev)
 
 	/* XXX Should this validation be moved to intel_opregion.c? */
 	vbt = validate_vbt(dev_priv->opregion.header, OPREGION_SIZE,
-			   dev_priv->opregion.vbt, "OpRegion");
-	if (!vbt) {
+			   dev_priv->opregion.vbt);
+	if (vbt) {
+		DRM_DEBUG_KMS("Using VBT from ACPI OpRegion: %20s\n",
+			      vbt->signature);
+	} else {
 		size_t size;
 
 		bios = pci_map_rom(pdev, &size);
@@ -1322,6 +1322,9 @@ intel_parse_bios(struct drm_device *dev)
 			pci_unmap_rom(pdev, bios);
 			return -1;
 		}
+
+		DRM_DEBUG_KMS("Using VBT from PCI ROM: %20s\n",
+			      vbt->signature);
 	}
 
 	bdb = get_bdb_header(vbt);
-- 
2.1.4