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We have now seen this: <4> [2120.434153] i915 0000:00:02.0: [drm] drm_WARN_ON(psr->paused) <4> [2120.434196] WARNING: CPU: 3 PID: 4430 at drivers/gpu/drm/i915/display/intel_psr.c:2227 intel_psr_pause+0x16e/0x180 [i915] Comment for drm_WARN_ON(display->drm, psr->paused) in intel_psr_pause says: "If we ever hit this, we will need to add refcount to pause/resume" This patch is implementing PSR pause/resume refcount. v3: Incorporate changes missing from v2 v2: Add drm_warn for detecting possible unbalanced pause/resume Signed-off-by: Jouni Högander <jouni.hogander@intel.com> Reviewed-by: Animesh Manna <animesh.manna@intel.com> Link: https://lore.kernel.org/r/20250328080623.1183669-1-jouni.hogander@intel.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 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.