From 690d22dafa88b82453516387b475664047a6bd14 Mon Sep 17 00:00:00 2001 From: Sultan Alsawaf Date: Thu, 30 Apr 2020 14:46:54 -0700 Subject: [PATCH] drm/i915: Don't enable WaIncreaseLatencyIPCEnabled when IPC is disabled MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit In commit 5a7d202b1574, a logical AND was erroneously changed to an OR, causing WaIncreaseLatencyIPCEnabled to be enabled unconditionally for kabylake and coffeelake, even when IPC is disabled. Fix the logic so that WaIncreaseLatencyIPCEnabled is only used when IPC is enabled. Fixes: 5a7d202b1574 ("drm/i915: Drop WaIncreaseLatencyIPCEnabled/1140 for cnl") Cc: stable@vger.kernel.org # 5.3.x+ Signed-off-by: Sultan Alsawaf Signed-off-by: Ville Syrjälä Link: https://patchwork.freedesktop.org/patch/msgid/20200430214654.51314-1-sultan@kerneltoast.com --- drivers/gpu/drm/i915/intel_pm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index a4830a5cd401..416cb1a1e7cb 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -5080,7 +5080,7 @@ static void skl_compute_plane_wm(const struct intel_crtc_state *crtc_state, * WaIncreaseLatencyIPCEnabled: kbl,cfl * Display WA #1141: kbl,cfl */ - if ((IS_KABYLAKE(dev_priv) || IS_COFFEELAKE(dev_priv)) || + if ((IS_KABYLAKE(dev_priv) || IS_COFFEELAKE(dev_priv)) && dev_priv->ipc_enabled) latency += 4; -- 2.11.0