Collabora contributions to Linux Kernel 4.3

Posted on 12/11/2015 by Gustavo Padovan

Collabora developers contributed 48 patches to kernel 4.3 as part of our current projects.

Danilo worked on the kernel doc scripts to add  cross-reference links to html documentation and arguments documentation in struct body. While Sjoerd Simons fixed a clock definition in rockchip and a incorrect udelay usage for the stmmac phy reset delay.

Tomeu fixed gpiolib to defer probe if the pin controller isn’t available, added another fix to chipidea USB to defer probe of usbmisc hasn’t been probed yet. On Tegra Tomeu worked to support to gpio-ranges property. Still on Tegra cpuidle_state.enter_freeze() was added.

Gustavo Padovan did a lot of exynos DRM work, with the most important changes being improvements to atomic modesetting, including the asynchronous atomic commit in exynos, in async mode we just schedule the atomic update and return right away to the userspace, in a similar way that PageFlips works in the old API. In this release the exynos atomic modesetting interface was enabled for userspace usage. Another important set of patches was the removal of structs exynos_drm_display and exynos_drm_encoder layers which greatly improved the code making it cleaner and easier to use. Apart from that there is also a few cleanup and fixes.

Danilo Cesar Lemes de Paula (2):

• scripts/kernel-doc Allow struct arguments documentation in struct body
• scripts/kernel-doc: Adding cross-reference links to html documentation.

Gustavo Padovan (36):

• drm/exynos: pass the correct pipe number
• drm/exynos: use KMS version of DRM vblanks functions
• drm/exynos: remove duplicated check for suspend
• drm/exynos: rename win_commit/disable to atomic-like names
• drm/exynos: pass struct exynos_drm_plane in update/enable
• drm/exynos: use drm atomic state directly
• drm/exynos: remove unused fields from struct exynos_drm_plane
• drm/exynos: unify exynos_drm_plane names with drm core
• drm/exynos: return return value of exynos_crtc->enable_vblank
• drm/exynos: split display’s .dpms() into .enable() and .disable()
• drm/exynos: remove wrappers for phy_power_{on,off}
• drm/exynos: remove unused .remove() and .check_mode() ops from display
• drm/exynos: simplify calculation of possible CRTCs
• drm/exynos: remove struct exynos_drm_display
• drm/exynos: remove extra call to hdmi_commit()
• drm/exynos: remove extra call to exynos_dp_commit()
• drm/exynos: remove exynos_encoder’s .commit() op
• drm/exynos: remove exynos_drm_create_enc_conn()
• drm/exynos: fold encoder setup into exynos_drm_load()
• drm/exynos: remove struct exynos_drm_encoder layer
• drm/exynos: don’t track enabled state at exynos_crtc
• drm/exynos: fimd: unify call to exynos_drm_crtc_finish_pageflip()
• drm/exynos: add prepare and cleanup phases for planes
• drm/exynos: fimd: move window protect code to prepare/cleanup_plane
• drm/exynos: check for pending fb before finish update
• drm/exynos: add macro to get the address of START_S reg
• drm/exynos: fimd: only finish update if START == START_S
• drm/exynos: add atomic asynchronous commit
• drm/exynos: wait all planes updates to finish
• drm/exynos: remove wait queue for pending page flip
• drm/exynos: Enable atomic modesetting feature
• drm/exynos: remove legacy ->suspend()/resume()
• drm/exynos: remove fimd_mode_fixup()
• drm/exynos: remove decon_mode_fixup()
• drm/exynos: remove unused mode_fixup() code
• drm/exynos: fimd: actually disable dp clock

Javier Martinez Canillas (1):

• mfd: Remove MFD_CROS_EC_SPI depends on OF

Sjoerd Simons (2):

• clk: rockchip: Fix SPIF special clock definition
• net: stmmac: Use msleep rather then udelay for reset delay

Tomeu Vizoso (7):

• gpiolib: Fix docs for gpiochip_add_pingroup_range
• gpio: defer probe if pinctrl cannot be found
• driver core: fix docbook for device_private.device
• pinctrl: tegra: Only set the gpio range if needed
• ARM: tegra: cpuidle: implement cpuidle_state.enter_freeze()
• usb: chipidea: imx: properly check for usbmisc
• ARM: tegra: Add gpio-ranges property

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