Collabora contributions to Linux kernel 4.0

Posted on 11/05/2015 by Javier Martinez Canillas

Linux 4.0 was released a couple of weeks ago and like previous kernel releases, this version again contains contributions made by Collabora engineers as a part of our current projects.

In total 59 patches were contributed to the 4.0 release. These were for:

• Fix graphics DP and HDMI display for Exynos DRM.
• More preparation work to add Atomic Mode Settings support to the Exynos DRM driver.
• Add support for Power, Lid keys and built-in USB camera to Peach Pi/Pit and Snow Chromebooks.
• Configure regulators operating modes on suspend for Peach Pi/Pit Chromebooks to reduce power consumption.
• Add DISP1 power domain and related clocks to have proper display support on Exynos5420 machines.
• Extend the MMC simple power sequencing provider to support a reference clock and more than one reset GPIO.
• Fix various regressions in the common clock framework exposed by the per-user clock changes.
• Fix S3C Real-Time-Clock that was not working on many Exynos SoCs.
• Fix a bug in the regulator framework that tried to enable regulators that were already enabled.
• Fix a reboot and poweroff hang on Exynos machines cause by a hang in the samsung serial driver.
• Various fixes to the Samsung MFC driver.
• Add support for the Exynos5422 Odroid XU3 board.
• Enable needed Kconfig symbols on the exynos, omap2plus and multi_v7 defconfigs.
• Add a devfreq driver for the Tegra Activity Monitor

Following is the complete list of patches merged in this kernel release:

• Daniel Stone (1):
  • drm: Exynos: Respect framebuffer pitch for FIMD/Mixer

• Gustavo Padovan (25):
  • drm: add helper to get crtc timings (v5)
  • drm/i915: remove intel_crtc_cursor_set_obj() (v5)
  • drm/i915: remove intel_pipe_set_base() (v4)
  • drm/exynos: move to_exynos_crtc() macro to main header
  • drm/exynos: expose struct exynos_drm_crtc
  • drm/exynos: remove exynos_drm_crtc_plane_* wrappers
  • drm/exynos: remove struct exynos_drm_overlay
  • drm/exynos/fimd: don’t initialize ‘ret’ variable in fimd_probe()
  • drm/exynos/vidi: remove useless ops->commit()
  • drm/exynos: Don’t touch DPMS when updating overlay planes
  • drm/exynos: don’t do any DPMS operation while updating planes
  • drm/exynos: remove exynos_plane_commit() wrapper
  • drm/exynos: unify plane update on exynos_update_plane()
  • drm/exynos: call exynos_update_plane() directly on page flips
  • drm/exynos: remove exynos_drm_crtc_mode_set_commit()
  • drm/exynos: rename base object of struct exynos_drm_crtc to ‘base’
  • drm/exynos: add pipe param to exynos_drm_crtc_create()
  • drm/exynos: remove pipe member of struct exynos_drm_manager
  • drm/exynos: move ‘type’ from manager to crtc struct
  • drm/exynos: remove drm_dev from struct exynos_drm_manager
  • drm/exynos: remove struct exynos_drm_manager
  • drm/exynos: don’t duplicate drm_display_mode in fimd context
  • drm/exynos: remove mode_set() ops from exynos_crtc
  • drm/exynos: create exynos_check_plane()
  • drm/exynos: Remove exynos_plane_dpms() call with no effect

• Javier Martinez Canillas (17):
  • ARM: dts: Add power and lid GPIO keys pinctrl for exynos5250-snow
  • ARM: dts: Add lid GPIO key device node for Peach boards
  • ARM: dts: Set Peach boards USB WebCam regulators to always on
  • ARM: dts: Configure regulators for suspend on exynos Peach boards
  • ARM: multi_v7_defconfig: Enable Exynos5420 Multi-Cluster PM support
  • clk: exynos5420: Add IDs for clocks used in DISP1 power domain
  • ARM: dts: Add DISP1 power domain for exynos5420
  • mmc: pwrseq: Document that simple sequence support more than one GPIO
  • mmc: pwrseq_simple: Extend to support more pins
  • mmc: pwrseq: Document optional clock for the simple power sequence
  • mmc: pwrseq_simple: Add optional reference clock support
  • clk: Don’t dereference parent clock if is NULL
  • clk: Add __clk_hw_set_clk helper function
  • clk: Replace explicit clk assignment with __clk_hw_set_clk
  • regulator: Only enable disabled regulators on resume
  • drivers/rtc/rtc-s3c.c: add .needs_src_clk to s3c6410 RTC data
  • serial: samsung: Clear operation mode on UART shutdown

• Nicolas Dufresne (3):
  • [media] s5p-mfc-v6+: Use display_delay_enable CID
  • [media] s5p-mfc-dec: Don’t use encoder stop command
  • [media] media-doc: Fix MFC display delay control doc

• Sjoerd Simons (4):
  • ARM: dts: Add dts file for Odroid XU3 board
  • ARM: EXYNOS: Recognize Samsung MFC v8 devices
  • ARM: omap2plus_defconfig: Enable OHCI & EHCI HCD support
  • ARM: exynos_defconfig: Enable CONFIG_FHANDLE

• Tomeu Vizoso (9):
• clk: Remove unneeded NULL checks
• clk: Remove __clk_register
• PM / devfreq: tegra: add devfreq driver for Tegra Activity Monitor
• clk: tegra: Fix order of arguments in WARN
• clk: Make clk API return per-user struct clk instances
• clk: Add rate constraints to clocks
• clkdev: Export clk_register_clkdev
• MIPS: Alchemy: Remove bogus args from alchemy_clk_fgcs_detr
• clk: Only recalculate the rate if needed

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