drm/i915/sbi: add a dedicated mutex for LPT/WPT IOSF sideband
authorJani Nikula <jani.nikula@intel.com>
Tue, 29 Oct 2024 09:25:24 +0000 (11:25 +0200)
committerJani Nikula <jani.nikula@intel.com>
Tue, 5 Nov 2024 10:19:34 +0000 (12:19 +0200)
commitf270857385b2880ff291526e6d8f5c3fe0d011f5
tree56b9c66b6498647e2cede7d52c2074c2e01925bb
parentd519f48b2ff11138c1e9116e5a12241e91a90070
drm/i915/sbi: add a dedicated mutex for LPT/WPT IOSF sideband

The LPT/WPT IOSF sideband is unrelated to pcode or VLV/CHV IOSF
sideband. It's just confusing to piggyback on the same mutex. Add a
dedicated lock with init and cleanup functions.

Reviewed-by: Jouni Högander <jouni.hogander@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/139933094fe51fccdbe14d4e20df69782e801905.1730193891.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
drivers/gpu/drm/i915/i915_driver.c
drivers/gpu/drm/i915/i915_drv.h
drivers/gpu/drm/i915/intel_sbi.c
drivers/gpu/drm/i915/intel_sbi.h