[PATCH 4/4] radeon: fall back to ACPI EDID retrieval

[Daniel Dadap <ddadap-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>]

Fall back to retrieving the EDID via the ACPI _DDC method, when present
for notebook internal panels, when retrieving BIOS-embedded EDIDs.

Signed-off-by: Daniel Dadap <ddadap-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
---
 drivers/gpu/drm/radeon/radeon_combios.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/radeon/radeon_combios.c b/drivers/gpu/drm/radeon/radeon_combios.c
index c3e49c973812..de801d9fca54 100644
--- a/drivers/gpu/drm/radeon/radeon_combios.c
+++ b/drivers/gpu/drm/radeon/radeon_combios.c
@@ -401,9 +401,8 @@ bool radeon_combios_check_hardcoded_edid(struct radeon_device *rdev)
 struct edid *
 radeon_bios_get_hardcoded_edid(struct radeon_device *rdev)
 {
-	struct edid *edid;
-
 	if (rdev->mode_info.bios_hardcoded_edid) {
+		struct edid *edid;
 		edid = kmalloc(rdev->mode_info.bios_hardcoded_edid_size, GFP_KERNEL);
 		if (edid) {
 			memcpy((unsigned char *)edid,
@@ -412,7 +411,8 @@ radeon_bios_get_hardcoded_edid(struct radeon_device *rdev)
 			return edid;
 		}
 	}
-	return NULL;
+
+	return drm_get_edid_acpi();
 }
 
 static struct radeon_i2c_bus_rec combios_setup_i2c_bus(struct radeon_device *rdev,
-- 
2.18.4