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Commit bdfb7604 authored by Alex Deucher's avatar Alex Deucher
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drm/radeon: work around lack of upstream ACPI support for D3cold 



Until Dave's patch to support the new hybrid gfx ACPI method goes
upstream, we can fallback to the old ATPX method which seems to
still work.

Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent c63695cc

drivers/gpu/drm/radeon/radeon_atpx_handler.c

+9 −0
Original line number Diff line number Diff line
@@ -198,7 +198,16 @@ static int radeon_atpx_validate(struct radeon_atpx *atpx) 
	atpx->is_hybrid = false;

	if (valid_bits & ATPX_MS_HYBRID_GFX_SUPPORTED) {

		printk("ATPX Hybrid Graphics\n");

#if 1

		/* This is a temporary hack until the D3 cold support

		 * makes it upstream.  The ATPX power_control method seems

		 * to still work on even if the system should be using

		 * the new standardized hybrid D3 cold ACPI interface.

		 */

		atpx->functions.power_cntl = true;

#else

		atpx->functions.power_cntl = false;

#endif

		atpx->is_hybrid = true;

	}