From f361912aa9bfefbdf875b185fc93f2454d917b4a Mon Sep 17 00:00:00 2001 From: Mahesh Kumar Date: Fri, 24 Aug 2018 15:02:24 +0530 Subject: [PATCH] drm/i915/skl+: don't trust IPC value set by BIOS If KMS decide to disable IPC make sure we override IPC configuration set by BIOS. Signed-off-by: Mahesh Kumar Reviewed-by: Maarten Lankhorst Signed-off-by: Rodrigo Vivi Link: https://patchwork.freedesktop.org/patch/msgid/20180824093225.12598-5-mahesh1.kumar@intel.com --- drivers/gpu/drm/i915/intel_pm.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index 09463e3d7948..ac8177032faf 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -6118,10 +6118,8 @@ void intel_enable_ipc(struct drm_i915_private *dev_priv) u32 val; /* Display WA #0477 WaDisableIPC: skl */ - if (IS_SKYLAKE(dev_priv)) { + if (IS_SKYLAKE(dev_priv)) dev_priv->ipc_enabled = false; - return; - } val = I915_READ(DISP_ARB_CTL2); -- 2.30.2