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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 <just.for.lkml@googlemail.com>

Signed-off-by: default avatarAlex Deucher <alexdeucher@gmail.com>
Cc: stable@kernel.org
Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
parent ff3f011c

drivers/gpu/drm/radeon/radeon_atombios.c

+9 −2
Original line number Diff line number Diff line
@@ -1029,8 +1029,15 @@ bool radeon_atombios_sideport_present(struct radeon_device *rdev) 
				      data_offset);

		switch (crev) {

		case 1:

			/* 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;

			}

			break;

		case 2:

			if (igp_info->info_2.ucMemoryType & 0x0f)