Linux Kernel 4.15 was released yesterday, and it once again contained patches contributed by Collabora! While the total number of contributions was lower than previous releases (19 patches by 6 different engineers), Collaborans worked on some bigger patchsets that took a longer time to merge, like V4L2 Explicit Synchronization and UTF-8 case insensitive lookups for EXT4

Collabora has also put a lot of work on implementing bisection support for kernelci.org. We've also seen Gustavo Padovan take on the role of drm-misc co-maintainer — the tree for DRM core and small DRM/KMS drivers. We left our Reviewed-by on 54 patches this release. There was also 28 Signed-off-by tags and for patches that were tested by Collabora engineers.

This release was very atypical with the merge of KPTI, a giant memory management patchset, late in the release candidates series to secure the kernel against the Meltdown attack. More information about general features of 4.15 release can be found at LWN.net, see part 1 and part 2 articles.

For the Collabora contributions Martyn Welch contributed some fixes to the i.MX serial driver, Gabriel Krisman Bertazi fixed a DRM buffer modifier for the Gemini Lake core from Intel. Gustavo Padovan added DRM asynchounous cursor update through atomic API to freedreno.

Fabien Lahoudere added device tree information for a GE Healthcare device. Thierry Escande fixed jack initialization for a Intel ASoC device and Romain Perier, who unfortunatelly left Collabora a few months ago, added improvements to i.MX and Rockchip devices.

Here is the complete list of Collabora contributions:

Fabien Lahoudere (1):

• ARM: dts: imx53: Add GE Healthcare PPD

Gabriel Krisman Bertazi (2):

• drm: Fix example comment of format modifier blob
• i915: Reject CCS modifiers for pipe C on Geminilake

Gustavo Padovan (3):

• dma-buf/sync_file: document flags field
• drm/msm: update cursors asynchronously through atomic
• drm/msm: remove mdp5_cursor_plane_funcs

Martyn Welch (6):

• dt-bindings: misc: achc: Add device tree binding for GE ACHC
• serial: imx: Use RX_BUF_SIZE to set size of RX buffer
• serial: imx: Switch setting dma_is_txing from "false" to "0"
• serial: imx: Correct comment imx_flush_buffer()
• staging: VME: Remove PIO2 driver
• MAINTAINERS: Update VME subsystem tree.

Romain Perier (6):

• serial: imx: only set dma_is_rxing when DMA starts     
• clk: rockchip: add clock id for PCLK_EFUSE256 of RK3368 SoCs
• clk: rockchip: export clock pclk_efuse_256 for RK3368 SoCs
• nvmem: rockchip: add support for RK3368
• arm64: dts: rockchip: add efuse for RK3368 SoCs
• dmaengine: pch_dma: Replace PCI pool old API

Thierry Escande (1):

• ASoC: Intel: cht_bsw_max98090_ti: Fix jack initialization

Reviewed-by:

Daniel Stone (1):

• drm/tve200: Pass NULL format_modifier to drm_simple_display_pipe_init

Gustavo Padovan (4):

• drm: mali-dp: Disable planes when their CRTC gets disabled.
• drm: mali-dp: Separate static internal data into a read-only structure.
• drm/vc4: Fix wrong printk format in vc4_bo_stats_debugfs()
• drm/atomic: Make async plane update checks work as intended, v2.

Sebastian Reichel (49):

• phy: cpcap-usb: Fix platform_get_irq_byname's error checking.
• iio: adc: cpcap: fix incorrect validation
• omapdrm: hdmi4_cec: signedness bug in hdmi4_cec_init()
• media: et8ek8: select V4L2_FWNODE
• pinctrl: Add some depends on HAS_IOMEM
• media: arm: dts: omap3: N9/N950: Add flash references to the camera
• media: ov13858: Add support for flash and lens devices
• media: ov5670: Add support for flash and lens devices
• media: et8ek8: Add support for flash and lens devices
• media: smiapp: Add support for flash and lens devices
• media: dt: bindings: smiapp: Document lens-focus and flash-leds properties
• media: v4l: fwnode: Add a convenience function for registering sensors
• media: v4l: fwnode: Add convenience function for parsing common external refs
• media: v4l: fwnode: Add a helper function to obtain device / integer references
• media: v4l: fwnode: Add a helper function for parsing generic references
• media: v4l: fwnode: Move KernelDoc documentation to the header
• media: dt: bindings: Add lens-focus binding for image sensors
• media: dt: bindings: Add a binding for flash LED devices associated to a sensor
• media: v4l: async: Ensure only unique fwnodes are registered to notifiers
• media: v4l: async: Allow binding notifiers to sub-devices
• media: v4l: async: Prepare for async sub-device notifiers
• media: v4l: async: Allow async notifier register call succeed with no subdevs
• media: v4l: async: Register sub-devices before calling bound callback
• media: v4l: async: Introduce helpers for calling async ops callbacks
• media: v4l: async: Move async subdev notifier operations to a separate structure
• media: omap3isp: Print the name of the entity where no source pads could be found
• media: omap3isp: Fix check for our own sub-devices
• media: omap3isp: Use generic parser for parsing fwnode endpoints
• media: v4l: async: Add V4L2 async documentation to the documentation build
• media: v4l: async: Use more intuitive names for internal functions
• media: v4l: async: Correctly serialise async sub-device unregistration
• media: v4l: async: Fix notifier complete callback error handling
• media: v4l: async: fix unbind error in v4l2_async_notifier_unregister()
• media: v4l: async: Don't set sd->dev NULL in v4l2_async_cleanup
• media: v4l: async: Remove re-probing support
• power: supply: sbs-message: fix some code style issues
• power: supply: sbs-battery: remove unchecked return var
• power: supply: sbs-battery: remove superfluous variable init
• power: supply: sbs-battery: move gpio present detect to sbs_get_property
• power: Adds support for Smart Battery System Manager
• Documentation: Add sbs-manager device tree node documentation
• ACPI / scan: Fix enumeration for special UART devices
• serdev: Add ACPI support
• serdev: enable TTY port controller support by default
• gpio: mcp23s08: add support for mcp23018
• pinctrl: mcp23s08: remove unused variables from pinconf_set
• dt-bindings: pinctrl: add mcp23018 to mcp23s08 documentation
• dt-bindings: pinctrl: Move mcp23s08 from gpio
• pinctrl: change Kconfig PINCTRL variable to a menuconfig

Signed-off-by:

Gustavo Padovan (1):

• dma-buf/sw_sync: force signal all unsignaled fences on dying timeline

Martyn Welch (17):

• ahci: imx: Handle increased read failures for IMX53 temperature sensor in low frequency mode.
• vme: tsi148: Adjust 14 checks for null pointers
• vme: tsi148: Improve 17 size determinations
• vme: tsi148: Delete nine error messages for a failed memory allocation
• vme: ca91cx42: Adjust 14 checks for null pointers
• vme: ca91cx42: Improve 12 size determinations
• vme: ca91cx42: Delete eight error messages for a failed memory allocation
• vme: fake: Adjust 11 checks for null pointers
• vme: fake: Improve five size determinations in fake_init()
• vme: fake: Delete an error message for a failed memory allocation in fake_init()
• vme: Return directly in two functions
• vme: Adjust 48 checks for null pointers
• vme: Move an assignment in vme_new_dma_list()
• vme: Improve 11 size determinations
• vme: Delete 11 error messages for a failed memory allocation
• serial: imx: only set dma_is_rxing when DMA starts
• ARM: dts: imx53: Add GE Healthcare PPD

Sebastian Reichel (9):

• power: supply: cpcap-charger: fix incorrect return value check
• power: supply: replace pr_* with dev_*
• power: supply: pcf50633-charger: remove redundant variable charging_start
• power: supply: generic-adc-battery: remove redundant variable pdata
• power: supply: max8997: Improve a size determination in probe
• dt-bindings: hsi: add omap4 hsi controller bindings
• HSI: hsi_char: pr_err() strings should end with newlines
• HSI: omap_ssi_core: fix kilo to be "k" not "K"
• ARM: dts: imx53: Add GE Healthcare PPD

Thierry Escande (2):

• platform/chrome: Add cros_ec_accel_legacy driver
• ASoC: ts3a227e: add acpi table

Tested-by:

Enric Balletbo i Serra (1):

• drm/rockchip: analogix_dp: Use mutex rather than spinlock

Guillaume Tucker (1):

• ARM: dts: exynos: Enable Mixer node for Exynos5800 Peach Pi machine

Nicolas Dufresne (1):

• media: venus: reimplement decoder stop command

Peter Senna Tschudin (1):

• dmaengine: pch_dma: Replace PCI pool old API