Linux mainline fork with MSM8998 patches | https://mainline.space | Currently supported devices:
OnePlus 5/5T, Xiaomi Mi 6, F(x)tec Pro¹ (2019 QX1000 model) & Sony Xperia XZ Premium (UNTESTED!)
24a7bfe0c2
The TypeC port mode needs to stay fixed whenever the port is active. Do that by introducing a tc_link_refcount to account for active ports, avoiding changing the port mode if a reference is held. During the modeset commit phase we also have to reset the port mode and update the active PLL reflecting the new port mode. We can do this only once the port and its old PLL has been already disabled. Add the new encoder update_prepare/complete hooks that are called around the whole enabling sequence. The TypeC specific hooks of these will reset the port mode, update the active PLL if the port will be active and ensure that the port mode will stay fixed for the duration of the whole enabling sequence by holding a tc_link_refcount. During the port enabling, the pre_pll_enable/post_pll_disable hooks will take/release a tc_link_refcount to ensure the port mode stays fixed while the port is active. Changing the port mode should also be avoided during connector detection and AUX transfers if the port is active, we'll do that by checking the port's tc_link_refcount. When resetting the port mode we also have to take into account the maximum lanes provided by the FIA. It's guaranteed to be 4 in TBT-alt and legacy modes, but there may be less lanes available in DP-alt mode, in which case we have to fall back to TBT-alt mode. While at it also update icl_tc_phy_connect()'s code comment, reflecting the current way of switching the port mode. v2: - Add the update_prepare/complete hooks to the encoder instead of the connector. (Ville) - Simplify intel_connector_needs_modeset() by removing redundant if. (Ville) v3: - Fix sparse warning, marking static functions as such. v4: - Rebase on drm-tip. Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Signed-off-by: Imre Deak <imre.deak@intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190628143635.22066-21-imre.deak@intel.com |
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| block | ||
| certs | ||
| crypto | ||
| Documentation | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
| mm | ||
| net | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| COPYING | ||
| CREDITS | ||
| Kbuild | ||
| Kconfig | ||
| MAINTAINERS | ||
| Makefile | ||
| README | ||
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.