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Runtime PM For The V3D Raspberry Pi Driver Will Finally Lower The GPU Clock When Idle
While the Broadcom V3D driver has been part of the mainline kernel for supporting the graphics found on recent Raspberry Pi boards, currently it doesn't support run-time power management
The lack of runtime PM has meant the GPU clock remains at full-speed even while idle. Maíra Canal of Igalia posted a patch series today implementing run-time power management for the V3D DRM driver to benefit Raspberry Pi single board computers. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated benchmarking software.
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