← Back to team overview

kernel-packages team mailing list archive

[Bug 1595803] [NEW] [i915_bpo][SKL] Display core init/uninit updates

 

Public bug reported:

At the moment, our i915_bpo driver on Vivid (kernel version:
Ubuntu-3.19.0-62.70) lacks certain patches which fix the display core
init/uninit sequence esp. handling dmc firmware loading and runtime-pm.
Following patches from v4.5-rc1 address these issues on SKL.

* e8ca932 drm/i915: Extract a intel_power_well_enable() function
* dcddab3 drm/i915: Extract a intel_power_well_disable() function
* 0a9d2be drm/i915/skl: Making DC6 entry is the last call in suspend flow.
* 18a04a7 drm/i915: Kill intel_runtime_pm_disable()
* ebae38d drm/i915/gen9: csr_init after runtime pm enable
* 01a6908 drm/i915: use correct power domain for csr loading
* bffbcd9 drm/i915/gen9: Don't try to load garbage dmc firmware on resume
* ca1283d drm/i915/skl: Removed assert for csr-fw-loading check during disabling dc6
* 56fcfd6 drm/i915: fix the power well ID for always on wells
* fc17f22 drm/i915: fix lookup_power_well for power wells without any domain
* 2f693e2 drm/i915: Make turning on/off PW1 and Misc I/O part of the init/fini sequences

These patches also fix OEM bug related to audio not working after
suspend by close/open lid.

** Affects: linux (Ubuntu)
     Importance: Undecided
     Assignee: Shrirang Bagul (shrirang-bagul)
         Status: Incomplete

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1595803

Title:
  [i915_bpo][SKL] Display core init/uninit updates

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  At the moment, our i915_bpo driver on Vivid (kernel version:
  Ubuntu-3.19.0-62.70) lacks certain patches which fix the display core
  init/uninit sequence esp. handling dmc firmware loading and runtime-
  pm. Following patches from v4.5-rc1 address these issues on SKL.

  * e8ca932 drm/i915: Extract a intel_power_well_enable() function
  * dcddab3 drm/i915: Extract a intel_power_well_disable() function
  * 0a9d2be drm/i915/skl: Making DC6 entry is the last call in suspend flow.
  * 18a04a7 drm/i915: Kill intel_runtime_pm_disable()
  * ebae38d drm/i915/gen9: csr_init after runtime pm enable
  * 01a6908 drm/i915: use correct power domain for csr loading
  * bffbcd9 drm/i915/gen9: Don't try to load garbage dmc firmware on resume
  * ca1283d drm/i915/skl: Removed assert for csr-fw-loading check during disabling dc6
  * 56fcfd6 drm/i915: fix the power well ID for always on wells
  * fc17f22 drm/i915: fix lookup_power_well for power wells without any domain
  * 2f693e2 drm/i915: Make turning on/off PW1 and Misc I/O part of the init/fini sequences

  These patches also fix OEM bug related to audio not working after
  suspend by close/open lid.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1595803/+subscriptions


Follow ups