Commit 5099fa7f authored by Alex Deucher's avatar Alex Deucher Committed by Dave Airlie
Browse files

drm/radeon/kms: fix possible mis-detection of sideport on rs690/rs740

Check ulBootUpMemoryClock on AMD IGPs.

Fix regression noticed by Torsten Kaiser <>
Signed-off-by: default avatarAlex Deucher <>
Signed-off-by: default avatarDave Airlie <>
parent ff3f011c
......@@ -1029,8 +1029,15 @@ bool radeon_atombios_sideport_present(struct radeon_device *rdev)
switch (crev) {
case 1:
if (igp_info->info.ucMemoryType & 0xf0)
return true;
/* AMD IGPS */
if ((rdev->family == CHIP_RS690) ||
(rdev->family == CHIP_RS740)) {
if (igp_info->info.ulBootUpMemoryClock)
return true;
} else {
if (igp_info->info.ucMemoryType & 0xf0)
return true;
case 2:
if (igp_info->info_2.ucMemoryType & 0x0f)
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