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On Intel platforms, we always enable all pins no matter what BIOS sets, but for others, we still take the conservative approach, and the HD-audio HDMI codec driver enables the streams only for the pins that are enabled by BIOS, and skips the disabled pins. This seems not good for some machines that have (as expected) broken BIOS, resulting in the lack of needed outputs. There is an allow-list in the driver code to enable all pins, but its addition needs a recompilation. This patch adds a module option for user's convenience to enable all pins forcibly on the fly. User can pass snd_hda_codec_hdmi.enable_all_pins=1 option for testing, and once confirmed, we may add a static entry in force_connect_list[]. Link: https://lore.kernel.org/r/20210712093551.29007-1-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de> |
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| 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.