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Commit 8749be86 authored by Damien Lespiau's avatar Damien Lespiau Committed by Daniel Vetter
Browse files

drm/i915/skl: Implement WaDisableHBR2 



v2: Use the recently introduced INTEL_REVID() and SKL_REVID defines
    (Nick Hoath)

Signed-off-by: default avatarDamien Lespiau <damien.lespiau@intel.com>
Reviewed-by: default avatarJesse Barnes <jbarnes@virtuousgeek.org>
Tested-by: default avatarJesse Barnes <jbarnes@virtuousgeek.org>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=89554


Signed-off-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
parent 7a8785f7

drivers/gpu/drm/i915/intel_dp.c

+4 −1
Original line number Diff line number Diff line
@@ -134,7 +134,10 @@ intel_dp_max_link_bw(struct intel_dp *intel_dp) 
	case DP_LINK_BW_2_7:

		break;

	case DP_LINK_BW_5_4: /* 1.2 capable displays may advertise higher bw */

		if (((IS_HASWELL(dev) && !IS_HSW_ULX(dev)) ||

		if (IS_SKYLAKE(dev) && INTEL_REVID(dev) <= SKL_REVID_B0)

			/* WaDisableHBR2:skl */

			max_link_bw = DP_LINK_BW_2_7;

		else if (((IS_HASWELL(dev) && !IS_HSW_ULX(dev)) ||

		     INTEL_INFO(dev)->gen >= 8) &&

		    intel_dp->dpcd[DP_DPCD_REV] >= 0x12)

			max_link_bw = DP_LINK_BW_5_4;