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Commit 07bb084c authored by Alex Deucher's avatar Alex Deucher Committed by Dave Airlie
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drm/radeon/kms: avoid oops on mac r4xx cards 

They don't have an atombios so don't attempt to use it for
eng/mem clocks.

Reported by spoonb on #radeon
fixes:
https://bugs.freedesktop.org/show_bug.cgi?id=28671



Signed-off-by: default avatarAlex Deucher <alexdeucher@gmail.com>
Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
parent b26c9497

drivers/gpu/drm/radeon/radeon_asic.c

+7 −0
Original line number Original line Diff line number Diff line
@@ -780,6 +780,13 @@ int radeon_asic_init(struct radeon_device *rdev) 
	case CHIP_R423:

	case CHIP_R423:

	case CHIP_RV410:

	case CHIP_RV410:

		rdev->asic = &r420_asic;

		rdev->asic = &r420_asic;

		/* handle macs */

		if (rdev->bios == NULL) {

			rdev->asic->get_engine_clock = &radeon_legacy_get_engine_clock;

			rdev->asic->set_engine_clock = &radeon_legacy_set_engine_clock;

			rdev->asic->get_memory_clock = &radeon_legacy_get_memory_clock;

			rdev->asic->set_memory_clock = NULL;

		}

		break;

		break;

	case CHIP_RS400:

	case CHIP_RS400:

	case CHIP_RS480:

	case CHIP_RS480: