diff options
| author | Mahesh Kumar <mahesh1.kumar@intel.com> | 2016-12-01 21:19:34 +0530 |
|---|---|---|
| committer | Paulo Zanoni <paulo.r.zanoni@intel.com> | 2016-12-07 16:30:34 -0200 |
| commit | a3a8986cb22aafd83681b7e783ca6d4963712989 (patch) | |
| tree | 3615ddefcbbc7ec6e93fa0115aa49459c93ed414 /drivers/gpu/drm/i915/i915_drv.c | |
| parent | ef8a4fb479d3791cc40a1adb72d4b5ec655fddaf (diff) | |
| download | op-kernel-dev-a3a8986cb22aafd83681b7e783ca6d4963712989.zip op-kernel-dev-a3a8986cb22aafd83681b7e783ca6d4963712989.tar.gz | |
drm/i915/bxt: IPC WA for Broxton
Display Workarounds #1135
If IPC is enabled in BXT, display underruns are observed.
WA: The Line Time programmed in the WM_LINETIME register should be
half of the actual calculated Line Time.
Programmed Line Time = 1/2*Calculated Line Time
Changes since V1:
- Add Workaround number in commit & code
Changes since V2 (from Paulo):
- Bikeshed white space and make the WA tag look like the others
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Mahesh Kumar <mahesh1.kumar@intel.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20161201154940.24446-3-mahesh1.kumar@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/i915_drv.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_drv.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c index 5fe27e4..d2cc28f 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -1239,6 +1239,8 @@ int i915_driver_load(struct pci_dev *pdev, const struct pci_device_id *ent) intel_runtime_pm_enable(dev_priv); + dev_priv->ipc_enabled = false; + /* Everything is in place, we can now relax! */ DRM_INFO("Initialized %s %d.%d.%d %s for %s on minor %d\n", driver.name, driver.major, driver.minor, driver.patchlevel, |
