[GIT PULL] power sequencing updates for v7.1-rc1

[Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>]

Linus,

I'll be OoO next week and disconnected so I'm sending an early PR for the
next cycle.

For this release we have an extension of the pwrseq-pcie-m2 driver with
support for PCIe M.2 Key E connectors. The rest of the commits in the PR
fulfill a supporting role: document the hardware in DT bindings, provide
required serdev helpers (this has been provided in an immutable branch to
Rob Herring so you may see it in his PR as well) and is followed up by
some Kconfig fixes from Arnd.

Please consider pulling for v7.1-rc1.

Thanks,
Bartosz

The following changes since commit 6de23f81a5e08be8fbf5e8d7e9febc72a5b5f27f:

  Linux 7.0-rc1 (2026-02-22 13:18:59 -0800)

are available in the Git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux.git tags/pwrseq-updates-for-v7.1-rc1

for you to fetch changes up to b4464d8f313f903ba72db06042f3958a9a1e464a:

  power: sequencing: pcie-m2: add SERIAL_DEV_BUS dependency (2026-04-03 14:20:36 +0200)

----------------------------------------------------------------
power sequencing updates for v7.1-rc1

- add support for the PCIe M.2 Key E connectors in pwrseq-pcie-m2
- describe PCIe M.2 Mechanical Key E connectors in DT bindings
- add serdev helpers for looking up devices by OF nodes
- minor serdev core rework to enable support for PCIe M.2 Key E connectors

----------------------------------------------------------------
Arnd Bergmann (2):
      power: sequencing: pcie-m2: enforce PCI and OF dependencies
      power: sequencing: pcie-m2: add SERIAL_DEV_BUS dependency

Manivannan Sadhasivam (7):
      serdev: Convert to_serdev_*() helpers to macros and use container_of_const()
      serdev: Add an API to find the serdev controller associated with the devicetree node
      serdev: Do not return -ENODEV from of_serdev_register_devices() if external connector is used
      dt-bindings: serial: Document the graph port
      dt-bindings: connector: Add PCIe M.2 Mechanical Key E connector
      power: sequencing: pcie-m2: Add support for PCIe M.2 Key E connectors
      power: sequencing: pcie-m2: Create serdev device for WCN7850 bluetooth

 .../bindings/connector/pcie-m2-e-connector.yaml    | 184 +++++++++++
 .../devicetree/bindings/serial/serial.yaml         |   3 +
 MAINTAINERS                                        |   1 +
 drivers/power/sequencing/Kconfig                   |   5 +-
 drivers/power/sequencing/pwrseq-pcie-m2.c          | 346 ++++++++++++++++++++-
 drivers/tty/serdev/core.c                          |  28 +-
 include/linux/serdev.h                             |  24 +-
 7 files changed, 563 insertions(+), 28 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/connector/pcie-m2-e-connector.yaml