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For Legacy S3 suspend/resume GEN9 BC needs to enable and setup TGP PCH. v2: * Move Wa_14010685332 into it's own function - vsyrjala * Add TODO comment about figuring out if we can move this workaround - imre v3: * Rename cnp_irq_post_reset() to cnp_display_clock_wa() * Add TODO item mentioning we need to clarify which platforms this workaround applies to * Just use ibx_irq_reset() in gen8_irq_reset(). This code should be functionally equivalent on gen9 bc to the code v2 added * Drop icp_hpd_irq_setup() call in spt_hpd_irq_setup(), this looks to be more or less identical to spt_hpd_irq_setup() minus additionally enabling one port. Will update i915 to use icp_hpd_irq_setup() for ICP in a separate patch. v4: * Revert Wa_14010685332 system list in comments to how it was before * Add back HAS_PCH_SPLIT() check before calling ibx_irq_reset() Cc: Matt Roper <matthew.d.roper@intel.com> Signed-off-by: Tejas Upadhyay <tejaskumarx.surendrakumar.upadhyay@intel.com> Signed-off-by: Lyude Paul <lyude@redhat.com> Reviewed-by: Imre Deak <imre.deak@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210217180016.1937401-1-lyude@redhat.com
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.