i2c-designware stops working after S4 on CHT platforms
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux-oem (Ubuntu) |
Fix Released
|
Undecided
|
Jesse Sung | ||
Bug Description
== Impact ==
The i2c-designware stops working after S4 thus I2C devices connected to it can't be accessed.
[ 272.628526] PM: Timekeeping suspended for 115.313 seconds
[ 272.633110] ACPI: Waking up from system sleep state S4
[ 272.655524] PM: noirq restore of devices complete after 19.377 msecs
[ 272.775692] i2c_designware 80860F41:00: Unknown Synopsys component type: 0xffffffff
[ 272.876322] PM: early restore of devices complete after 219.859 msecs
...
[ 273.060760] i2c_designware 80860F41:00: timeout waiting for bus ready
[ 274.214314] i2c_designware 80860F41:00: timeout in disabling adapter
== Fix ==
This happens after these two commits:
* 36c27d206b21 - PM: i2c-designware-
* 489cd2fafa2d - PM: i2c-designware-
Until there's a proper fix for them, both of them need to be reverted in order to make S4 works again.
== Test Case ==
Boot with the kernel, S4, and then wake the system up.
== Risk of Regression ==
Risk should be low since we're removing new features.
CVE References
summary: |
- i2c-dw stops working after S4 on CHT platforms + i2c-designware stops working after S4 on CHT platforms |
This bug was fixed in the package linux-oem - 4.15.0-1033.38
---------------
linux-oem (4.15.0-1033.38) bionic; urgency=medium
* linux-oem: 4.15.0-1033.38 -proposed tracker (LP: #1814241)
* Packaging resync (LP: #1786013)
- [Packaging] update update.conf
[ Ubuntu: 4.15.0-45.48 ]
* linux: 4.15.0-45.48 -proposed tracker (LP: #1813779) descriptors( )
* External monitors does not work anymore 4.15.0-44 (LP: #1813663)
- SAUCE: Revert "drm/i915/dp: Send DPCD ON for MST before phy_up"
* kernel 4.15.0-44 cannot mount ext4 fs with meta_bg enabled (LP: #1813727)
- ext4: fix false negatives *and* false positives in ext4_check_
linux-oem (4.15.0-1032.37) bionic; urgency=medium
* linux-oem: 4.15.0-1032.37 -proposed tracker (LP: #1811421)
* Fix non-working pinctrl-intel (LP: #1811777) get_direction callback
- pinctrl: intel: Implement intel_gpio_
- pinctrl: intel: Do pin translation when lock IRQ
- pinctrl: intel: Do pin translation in other GPIO operations as well
- Revert "pinctrl: intel: Do pin translation when lock IRQ"
* Fix not working Goodix touchpad (LP: #1811929)
- HID: i2c-hid: Disable runtime PM on Goodix touchpad
* Miscellaneous Ubuntu changes
- [Config] update configs following rebase to 4.15.0-44.47
[ Ubuntu: 4.15.0-44.47 ]
* linux: 4.15.0-44.47 -proposed tracker (LP: #1811419) SYNC_RUNTIME_ PM disable( ) in probe function pgtable- arm: Fix race handling in split_blk_unmap() pgtable- arm: Add support for non-strict mode
* Packaging resync (LP: #1786013)
- [Packaging] update helper scripts
* CPU hard lockup with rigorous writes to NVMe drive (LP: #1810998)
- blk-wbt: pass in enum wbt_flags to get_rq_wait()
- blk-wbt: Avoid lock contention and thundering herd issue in wbt_wait
- blk-wbt: move disable check into get_limit()
- blk-wbt: use wq_has_sleeper() for wq active check
- blk-wbt: fix has-sleeper queueing check
- blk-wbt: abstract out end IO completion handler
- blk-wbt: improve waking of tasks
* To reduce the Realtek USB cardreader power consumption (LP: #1811337)
- mmc: sdhci: Disable 1.8v modes (HS200/HS400/UHS) if controller can't support
1.8v
- mmc: core: Introduce MMC_CAP_
- mmc: rtsx_usb_sdmmc: Don't runtime resume the device while changing led
- mmc: rtsx_usb: Use MMC_CAP2_NO_SDIO
- mmc: rtsx_usb: Enable MMC_CAP_ERASE to allow erase/discard/trim requests
- mmc: rtsx_usb_sdmmc: Re-work runtime PM support
- mmc: rtsx_usb_sdmmc: Re-work card detection/removal support
- memstick: rtsx_usb_ms: Add missing pm_runtime_
- misc: rtsx_usb: Use USB remote wakeup signaling for card insertion detection
- memstick: Prevent memstick host from getting runtime suspended during card
detection
- memstick: rtsx_usb_ms: Use ms_dev() helper
- memstick: rtsx_usb_ms: Support runtime power management
* Support non-strict iommu mode on arm64 (LP: #1806488)
- iommu/io-
- iommu/arm-smmu-v3: Implement flush_iotlb_all hook
- iommu/dma: Add support for non-strict mode
- iommu: Add "iommu.strict" command line option
- iommu/io-
- iommu/arm-smmu-v3: Add support for non-strict mode
...