PCI Changes For Linux 5.17 Bring Intel Raptor Lake IDs, Apple PCIe Clock Gating
Written by Michael Larabel in Hardware on 15 January 2022 at 05:20 AM EST. 1 Comment
HARDWARE --
The PCI subsystem updates for the in-development Linux 5.17 kernel have been submitted to Linus.

The PCI/PCIe subsystem updates for Linux 5.17 aren't particularly exciting but do have a few changes worth pointing out:

- Clock gating is now enabled for the Apple PCIe controller driver for saving power on Apple Silicon hardware.

- i.MX8MM support is added to the Freescale i.MX PCIe controller driver.

- Intel Raptor Lake support has been added to the Intel VMD host bridge driver.

- Microsoft's Hyper-V host bridge driver has added 64-bit ARM (ARM64/AArch64) Hyper-V virtual PCI support.

The full list of PCI changes for Linux 5.17 can be found from this pull request.
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