Earlier this week, Linux Kernel 5.1 was made available, and with it came over 13,000 commits from developers all around the world, including some Collaborans. This time around, no less than twelve different developers contributed commits (64), sign-offs (111), bug reports and testing to this latest release. If you would like to read more about the merge window for 5.1, head to LWN.net (part 1 & part 2). Now let's take a closer look at Collabora's contributions!

First and foremost, Helen Koike contributed a major change, providing a mechanism to mount a mapped device at boot time through a kernel command line parameter, removing the current initramfs requirement. This change is one of the highlights of the 5.1 release, and is the result of the combined effort of both Google and Collabora engineers to push upstream a feature that is shipped on Chrome OS devices and Android devices using AVB 2.0.

Hardware enablement:

On this release, we've worked on multiple fronts on SoC hardware enablement.

• Tomeu Vizoso enabled support for the NanoPC-T4 SBC, based on the RK3399 SoC and marketed by FriendlyELEC. This was part of Tomeu's effort to contribute to the Panfrost kernel driver, where he's using this board for the development.
• Martyn Welch added support for two new ARM devices: AM335x-based Bosch Guardian and i.MX6 Phytec phyBOARD Segin.
• Helen Koike fixed the pinmuxing on Raspberry PI model B, which was preventing HDMI output from working correctly.
• Ezequiel Garcia enabled HDMI audio on RK3399 Rock960 platforms. Also, Ezequiel fixed the missing DDC bus for EDID probing on RK3399 RockPI board.

USB:

• Andrzej Pietrasiewicz fixed handling of USB descriptors in FunctionFS. The change eliminates unnecessary clipping of maximum packet size to 64 for bulk endpoints.

Graphics:

• Emil Velikov improved the DRM_AUTH implementation in the DRM subsystem. Emil removed a case where it was erroneously required, while also addressing a memory leak on some DRM drivers.
• Ezequiel Garcia added support for plane rotation and mirroring on RK3399 and RK3288 SoCs, exposing DRM plane properties. This is useful for compositors on tablets and mobile devices.

Chrome EC:

• Enric Balletbo, as maintainer of platform-chrome subsystem, fixed lot of license identifier (switching to the SPDX format), some documentation issues and converted some non-modulable drivers to platform-chrome drivers.

Here, there and everywhere:

• Sebastian Reichel updated the isp1704 to use the new GPIO API and removed useless code.
• Boris Brezillon, as the maintainer of the MTD and I3C subsystem has merged various fixes. No major rework stands out.
• André Almeida fixed a vivid driver bug, related to how the driver was dealing with multiplanar pixel formats.

Here is the complete list of Collabora contributions:

Andrzej Pietrasiewicz (2):

• usb: gadget: move non-super speed code out of usb_ep_autoconfig_ss()
• usb: gadget: f_fs: preserve wMaxPacketSize across usb_ep_autoconfig() call

André Almeida (1):

• media: vivid: add vertical down sampling to imagesize calc

Boris Brezillon (3):

• Merge tag 'spi-nor/for-5.1' of git://git.infradead.org/linux-mtd into mtd/next
• Merge tag 'nand/for-5.1' of git://git.infradead.org/linux-mtd into mtd/next
• MAINTAINERS: Fix the I3C entry

Emil Velikov (5):

• drm: drop DRM_AUTH requirement from AUTH_MAGIC ioctl
• drm: factor out drm_close_helper() function
• drm: plug memory leak on drm_setup() failure
• drm: annotate drm_core_check_feature() dev arg. as const
• drm: allow render capable master with DRM_AUTH ioctls

Enric Balletbo i Serra (25):

• drm/rockchip: update cursors asynchronously through atomic.
• mfd / platform: cros_ec: Use devm_mfd_add_devices
• mfd / platform: cros_ec: Move lightbar attributes to its own driver
• mfd / platform: cros_ec: Move vbc attributes to its own driver
• mfd / platform: cros_ec: Move debugfs attributes to its own driver
• mfd / platform: cros_ec: Move device sysfs attributes to its own driver
• mfd / platform: cros_ec_vbc: Instantiate only if the EC has a VBC NVRAM
• platform/chrome: cros_ec_lightbar: Instantiate only if the EC has a lightbar
• platform/chrome: cromeos_pstore: switch to SPDX identifier
• platform/chrome: cros_ec_debugfs: switch to SPDX identifier
• platform/chrome: cros_ec_lightbar: switch to SPDX identifier
• platform/chrome: cros_ec_sysfs: switch to SPDX identifier
• platform/chrome: cros_ec_vbc: switch to SPDX identifier
• platform/chrome: cros_ec_i2c: switch to SPDX identifier
• platform/chrome: cros_ec_lpc: switch to SPDX identifier
• platform/chrome: cros_ec_proto: switch to SPDX identifier
• platform/chrome: cros_ec_spi: switch to SPDX identifier
• platform/chrome: cros_kbd_led_backlight: switch to SPDX identifier
• platform/chrome: cros_ec_lightbar: remove pr_fmt() define
• platform/chrome: cros_ec_sysfs: remove pr_fmt() define
• MAINTAINERS: chrome-platform: change the git tree to a chrome-platform group git tree
• phy: rockchip-inno-usb2: fix misspelling and kernel-doc documentation
• dt-bindings: phy-rockchip-inno-usb2: add documentation for extcon property
• phy: phy-rockchip-inno-usb2: drop reading the utmi-avalid property
• ARM: dts: rockchip: add chosen node on veyron devices

Ezequiel Garcia (21):

• drm/virtio: Remove incorrect kfree()
• drm/virtio: Add missing virtqueue reset
• drm/virtio: Drop deprecated load/unload initialization
• drm/rockchip: Fix typo in VOP macros argument
• drm/rockchip: Separate RK3288 from RK3368 win01 registers
• arm64: dts: rockchip: Enable HDMI audio devices on rk3399-rock960
• media: vb2: Fix buf_out_validate documentation
• media: v4l2-mem2mem: Rename v4l2_m2m_buf_copy_data to v4l2_m2m_buf_copy_metadata
• arm64: dts: rockchip: Enable tsadc device on rock960
• media: v4l: ioctl: Sanitize num_planes before using it
• media: mtk-jpeg: Correct return type for mem2mem buffer helpers
• media: mtk-mdp: Correct return type for mem2mem buffer helpers
• media: mtk-vcodec: Correct return type for mem2mem buffer helpers
• media: mx2_emmaprp: Correct return type for mem2mem buffer helpers
• media: rockchip/rga: Correct return type for mem2mem buffer helpers
• media: s5p-g2d: Correct return type for mem2mem buffer helpers
• media: s5p-jpeg: Correct return type for mem2mem buffer helpers
• media: sh_veu: Correct return type for mem2mem buffer helpers
• media: rockchip/vpu: Correct return type for mem2mem buffer helpers
• media: v4l2-mem2mem: Correct return type for mem2mem buffer helpers
• arm64: dts: rockchip: add DDC bus on Rock Pi 4

Helen Koike (2):

• ARM: dts: bcm283x: Fix hdmi hpd gpio pull
• dm: add support to directly boot to a mapped device

Martyn Welch (3):

• dt-bindings: Add vendor prefix for Catalyst Semiconductor
• ARM: dts: imx6: Add support for Phytec phyBOARD i.MX6UL Segin
• ARM: dts: am335x: Add support for Bosch Guardian

Sebastian Reichel (1):

• power: supply: isp1704: switch to gpiod API

Tomeu Vizoso (1):

• arm64: dts: rockchip: Add devicetree for NanoPC-T4

Reviewed-by:

Boris Brezillon (4):

• mtd: rawnand: marvell: Clean the controller state before each operation
• spi: atmel-quadspi: add support for sam9x60 qspi controller
• spi: atmel-quadspi: rework transfer macros
• spi: atmel-quadspi: cache MR value to avoid a write access

Emil Velikov (3):

• drm/irq: Ditch DRIVER_IRQ_SHARED
• drm: Switch DRIVER_ flags to an enum
• drm/irq: Don't check for DRIVER_HAVE_IRQ in drm_irq_(un)install

Enric Balletbo i Serra (1):

• ASoC: cros_ec_codec: Add codec driver for Cros EC

Ezequiel Garcia (3):

• drm/rockchip: check yuv2yuv existence before assigning window data
• drm/virtio: drop virtio_gpu_fence_cleanup()
• drm/virtio: fix pageflip flush

Sebastian Reichel (3):

• regulator: cpcap: Constify omap4_regulators and xoom_regulators
• regulator: cpcap: Remove unused vsel_shift from struct cpcap_regulator
• drm: omapdrm: Cleanup drm_display_mode print str

Acked-by:

Boris Brezillon (1):

• drm/doc: Make igts for cross-driver stuff strongly suggested

Ezequiel Garcia (1):

• media: Drop superfluous PCM preallocation error checks

Helen Koike (3):

• media: vimc: add USERPTR support
• media: vimc: fill in bus_info in media_device_info
• media: vimc: Add vimc-streamer for stream control

Signed-off-by:

Boris Brezillon (32):

• i3c: dw: Fix dw_i3c_master_disable controller by using correct mask
• i3c: Fix the verification of random PID
• i3c: master: dw-i3c-master: mark expected switch fall-through
• mtd: spi-nor: Fix wrong abbreviation HWCPAS
• mtd: spi-nor: cadence-quadspi: fix spelling mistake: "Couldnt't" -> "Couldn't"
• mtd: spi-nor: Add support for en25qh64
• mtd: spi-nor: Add support for MX25V8035F
• mtd: spi-nor: Add support for EN25Q80A
• mtd: spi-nor: cadence-quadspi: Add support for Octal SPI controller
• dt-bindings: cadence-quadspi: Add new compatible for AM654 SoC
• mtd: spi-nor: split s25fl128s into s25fl128s0 and s25fl128s1
• mtd: spi-nor: cadence-quadspi: write upto 8-bytes data in STIG mode
• mtd: spi-nor: Add support for mx25u3235f
• mtd: docg3: fix a possible memory leak of mtd->name
• mtd: Remove empty lines at end of sysfs related functions
• mtd: docg3: Fix passing zero to 'PTR_ERR' warning in doc_probe_device
• drm/atmel-hlcdc: fix clipping of planes
• drm/atmel-hlcdc: do not swap w/h of the crtc when a plane is rotated
• drm/atmel-hlcdc: rotate planes counterclockwise
• mtd: spi-nor: refine Spansion S25FL512S ID
• mtd: spi-nor: add Spansion S25FS512S ID
• mtd: m25p80: add support of octal mode I/O transfer
• mtd: spi-nor: add octal read flag for flash mt35xu512aba
• mtd: spi-nor: add opcodes for octal Read/Write commands
• mtd: spi-nor: mtk-quadspi: rename config to a common one
• mtd: spi-nor: mtk-quadspi: add SNOR_HWCAPS_READ to spi_nor_hwcaps mask
• dt-bindings: mtd: mtk-quadspi: update bindings for MT7629 SoC
• MAINTAINERS: add myself as SPI NOR co-maintainer
• mtd: lpddr: Use struct_size() in kzalloc()
• mtd: cfi: cmdset_0001: Use struct_size() in kmalloc()
• mtd: gen_probe: Use struct_size() in kmalloc()
• mtd: mtdram: Expose module parameters

Enric Balletbo i Serra (8):

• platform/chrome: Fix locking pattern in wilco_ec_mailbox()
• iio: cros_ec: Fix the maths for gyro scale calculation
• platform/chrome: fix wilco-ec dependencies
• platform/chrome: wilco_ec: Add RTC driver
• platform/chrome: wilco_ec: Add support for raw commands in debugfs
• platform/chrome: Add new driver for Wilco EC
• platform/chrome: cros_ec: Remove cros_ec dependency in lpc_mec
• mfd: cros_ec_dev: Return number of bytes read with CROS_EC_DEV_IOCRDMEM

Ezequiel Garcia (2):

• drm/rockchip: Add reflection properties
• drm/rockchip: Fix YUV buffers color rendering

Sebastian Reichel (27):

• power: supply: sysfs: prevent endless uevent loop with CONFIG_POWER_SUPPLY_DEBUG
• power: supply: cpcap-battery: Fix division by zero
• power: reset: at91-reset: add support for sam9x60 SoC
• dt-bindings: arm: atmel: add new sam9x60 reset controller binding
• dt-bindings: arm: atmel: add missing samx7 to reset controller
• max17042_battery: fix potential use-after-free on device remove
• power: supply: core: Add a field to support battery max voltage
• dt-bindings: power: supply: Add voltage-max-design-microvolt property
• bq27x00: use cached flags
• HSI: omap_ssi_port: fix debugfs_simple_attr.cocci warnings
• power: supply: ds2782: fix possible use-after-free on remove
• power: supply: bq25890: show max charge current/voltage as configured
• power: supply: sc27xx: Fix capacity saving function
• power: supply: sc27xx: Fix the incorrect formula when converting capacity to coulomb counter
• power: supply: sc27xx: Add one property to read charge voltage
• dt-bindings: power: sc27xx: Add one IIO channel to read charge voltage
• drivers: power: supply: goldfish_battery: Add support for reading more properties
• power: supply: charger-manager: Fix trivial language typos
• cpcap-charger: generate events for userspace
• power: supply: remove some duplicated includes
• power: twl4030: fix a missing check of return value
• drivers: power: supply: goldfish_battery: Use tabs for alignment
• drivers: power: supply: goldfish_battery: Fix alignment
• drivers: power: supply: goldfish_battery: Retire a redundant variable
• drivers: power: supply: goldfish_battery: Fix "line over 80 characters"
• drivers: power: supply: goldfish_battery: Put an SPDX tag
• power: supply: axp288_fuel_gauge: Change to use DEFINE_SHOW_ATTRIBUTE macro

Tested-by:

Enric Balletbo i Serra (1):

• ASoC: qcom: Kconfig: fix dependency for sdm845

Gaël Portay (1):

• media: imx: prpencvf: Stop upstream before disabling IDMA channel

Marius Vlad (1):

• drm/imx: ipuv3-plane: add zpos property

Suggested-by:

Boris Brezillon (1):

• mtd: rawnand: marvell: Clean the controller state before each operation