Linux Kernel 4.4 was released this week and Collabora engineers helped in the development of the new kernel in a few different areas. A total of 38 patches from 8 Collabora engineers were added, making it the kernel release with the most Collabora developers ever! Only 7 of the 8 engineers are still part Collabora however, as unfortunately Javier left a few months ago, after completing his patches.

On that note, Collabora is hiring experienced kernel hackers to further increase our participation in the Linux Kernel. If you are interested, please drop a line!

In this release Daniel Stone fixed a potential circular deadlock when loading the i915 GuC firmware and incorrect pipe paramenter on drm_crtc_send_vblank_event() that was leading to WARN_ON. Danilo Cesar Lemes de Paula improved the kernel-doc script to fix an issue with struct drm_modeset_lock not showing at the final kernel Doc and fixes a fault in the highlight processing by using arrays instead of hashes.

Emilio López enabled EC verified boot context on Peach Boards and driver to read/write nvram’s verified boot context to/from userspace for Chromebook devices and Enric Balletbo i Serra added support for TI’s tps65217 charger driver while Gustavo Padovan added cursor support on exynos DRM driver. Javier did some improvements to the Chromebook EC driver.

Sjoerd Simons added rockchip support by default on ARM multi_v7_defconfig and a driver for the SPDIF audio transceiver on rockchip boards. Tomeu Vizoso removed the regulator_list as it was redundant because the regulators devices can be found through the regulator_class, fixed an clk reparenting issue on exynos5250 that was preventing the screen to work after the second suspend.

A full list of all commits is provided here:

Daniel Stone (2):

• drm/i915: Fix locking around GuC firmware load
• drm/rockchip: Use CRTC vblank event interface

Danilo Cesar Lemes de Paula (3):

• drm/doc: Fixing xml documentation warning
• scripts/kernel-doc: Processing -nofunc for functions only
• scripts/kernel-doc: Replacing highlights hash by an array

Emilio López (3):

• ARM: dts: Enable EC vboot context support on Peach boards
• sysfs: Support is_visible() on binary attributes
• platform/chrome: Support reading/writing the vboot context
• bindings: mfd: cros ec: Document vbc EC property

Enric Balletbo i Serra (3):

• devicetree: Add TPS65217 charger binding.
• power_supply: Add support for tps65217-charger.
• mfd: tps65217: Add battery charger as subdevice

Gustavo Padovan (3):

• drm: WARN_ON if a modeset driver uses legacy suspend/resume helpers
• drm/exynos: add global macro for the default primary plane
• drm/exynos: add cursor plane support

Javier Martinez Canillas (3):

• platform/chrome: cros_ec_lpc – Use existing function to check EC result
• platform/chrome: cros_ec_lpc – Add support for Google Pixel 2
• platform/chrome: cros_ec_dev – Add a platform device ID table

Sjoerd Simons (17):

• ASoC: rockchip: namespace rockchip i2s module name
• ARM: multi_v7_defconfig: Enable common Rockchip devices/busses
• ARM: multi_v7_defconfig: Enable common regulators for rockchip boards
• ARM: multi_v7_defconfig: Enable Rockchip display support
• ARM: multi_v7_defconfig: Enable the Rockchip USB 2.0 phy
• ARM: multi_v7_defconfig: Support RTC devices commonly used on Rockchip boards
• ASoC: dt-bindings: add rockchip tranceiver bindings
• ASoC: rockchip: Add rockchip SPDIF transceiver driver
• ARM: dts: rockchip: Add dtb for the Radxa Rock 2 Square board
• ARM: dts: rockchip: Add SPDIF transceiver for RK3188
• ARM: dts: rockchip: Add SPDIF optical out on Radxa Rock
• ARM: dts: rockchip: Add SPDIF transceiver for RK3288
• ARM: dts: rockchip: Add SPDIF optical out on Radxa Rock2 Square
• ASoC: rockchip: Drop unneeded properties rockchip i2s/spdif bindings
• ASoC: rockchip: Fix incorrect VDW value for 24 bit
• drm/rockchip: vop: Correct enabled clocks during setup
• ASoC: rockchip: spdif: Set transmit data level to 16 samples

Tomeu Vizoso (4):

• regulator: core: Remove regulator_list
• clk: samsung: exynos5250: Add DISP1 clocks
• ARM: dts: Add clocks to DISP1 domain in exynos5250
• staging: board: Set PM domain before probe

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