09068d624c
ACP pin configuration varies based on acp version. ACP PCI driver should read the ACP PIN config value and based on config value, it has to create a platform device in below two conditions. 1) If ACP PDM configuration is selected from BIOS and ACP PDM controller exists. 2) If ACP I2S configuration is selected from BIOS. Other than above scenarios, ACP PCI driver should skip the platform device creation logic, i.e. ACP PCI driver probe sequence should never fail if other acp pin configuration is selected. It should skip platform device creation logic. check_acp_pdm() function was implemented for ACP6.x platforms to check ACP PDM configuration. Previously, this code was safe guarded by FLAG_AMD_LEGACY_ONLY_DMIC flag check. This implementation breaks audio use cases for Huawei Matebooks which are based on ACP3.x varaint uses I2S configuration. In current scenario, check_acp_pdm() function returns -ENODEV value which results in ACP PCI driver probe failure without creating a platform device even in case of valid ACP pin configuration. Implement check_acp_config() as a common function which invokes platform specific acp pin configuration check functions for ACP3.x, ACP6.0 & ACP6.3 & ACP7.0 variants and checks for ACP PDM controller. Closes: https://bugzilla.kernel.org/show_bug.cgi?id=218780 Fixes: 4af565de9f8c ("ASoC: amd: acp: fix for acp pdm configuration check") Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda@amd.com> Link: https://lore.kernel.org/r/20240502140340.4049021-1-Vijendar.Mukunda@amd.com Signed-off-by: Mark Brown <broonie@kernel.org>
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 reStructuredText 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.