{"id":299297,"date":"2026-02-15T12:04:09","date_gmt":"2026-02-15T12:04:09","guid":{"rendered":"https:\/\/www.newsbeep.com\/ie\/299297\/"},"modified":"2026-02-15T12:04:09","modified_gmt":"2026-02-15T12:04:09","slug":"power-sequencing-driver-for-pcie-m-2-connectors-makes-it-into-linux-7-0","status":"publish","type":"post","link":"https:\/\/www.newsbeep.com\/ie\/299297\/","title":{"rendered":"Power Sequencing Driver For PCIe M.2 Connectors Makes It Into Linux 7.0"},"content":{"rendered":"

\"HARDWARE\"
\nThe power sequencing subsystem updates have been merged for the Linux 7.0 cycle. Typically not an area of the kernel too exciting but one new driver addition is the “pwrseq-pcie-m2” to provide power sequencing for PCIe M.2 connectors.<\/p>\n

This power sequencing driver for PCIe M.2 connectors is part of the effort for being able to handle PCIe M.2 connectors in Device Tree files<\/a>. While those on the likes of AMD\/Intel x86_64 systems and other ACPI-enabled platforms where the PCIe M.2 interfaces are managed by the firmware\/BIOS, for Device Tree platforms the kernel needs to be able to power manage the connectors and associate with Device Tree descriptions. <\/p>\n

Linux Device Tree support has lacked proper representation of M.2 connectors and that is finally being addressed with Linux 7.0. The Device Tree binding is merged for Mechanical Key M connectors and this initial enablement is tailored to SSDs via the PCIe interface. <\/p>\n

\"M.2<\/p>\n

The new driver is gated by the POWER_SEQUENCING_PCIE_M2 Kconfig option for power sequencing of PCIe M.2 connectors exposing interfaces like PCIe, SATA, and UART.<\/p>\n

This addition in Linux 7.0 is the main highlight of the power sequencing pull<\/a> for helping out DT platforms.<\/p>\n","protected":false},"excerpt":{"rendered":"The power sequencing subsystem updates have been merged for the Linux 7.0 cycle. Typically not an area of…\n","protected":false},"author":2,"featured_media":299298,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[7165,61,60,7164,7162,7161,7168,7166,7163,7167,7160,7171,80,7169,7170],"class_list":["post-299297","post","type-post","status-publish","format-standard","has-post-thumbnail","category-technology","tag-desktop-linux","tag-ie","tag-ireland","tag-linux-benchmarking","tag-linux-hardware-benchmarks","tag-linux-hardware-reviews","tag-linux-how-to","tag-linux-performance","tag-linux-server-benchmarks","tag-open-source-graphics","tag-phoronix","tag-phoronix-test-suite","tag-technology","tag-ubuntu-benchmarks","tag-ubuntu-hardware"],"_links":{"self":[{"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/posts\/299297","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/comments?post=299297"}],"version-history":[{"count":0,"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/posts\/299297\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/media\/299298"}],"wp:attachment":[{"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/media?parent=299297"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/categories?post=299297"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/tags?post=299297"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}