From 8749be86a8f0c8a956d20f7d3c768ed6d1e356a1 Mon Sep 17 00:00:00 2001 From: Damien Lespiau Date: Wed, 11 Feb 2015 17:43:24 +0000 Subject: [PATCH] drm/i915/skl: Implement WaDisableHBR2 v2: Use the recently introduced INTEL_REVID() and SKL_REVID defines (Nick Hoath) Signed-off-by: Damien Lespiau Reviewed-by: Jesse Barnes Tested-by: Jesse Barnes Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=89554 Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/intel_dp.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index 33d58773cfe5..ca60060710d2 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -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; -- 2.39.5