[PATCH 0/8] Add PCIe M.2 Key E connector support for NXP i.MX boards

[Sherry Sun (OSS)]

From: Sherry Sun <sherry.sun at nxp.com>

This series adds support for NXP Wi-Fi/BT combo chips (88W9098, AW693)
inserted into PCIe M.2 Key E connectors on several i.MX EVK/MEK boards.

For M.2 cards that rely on PCIe L2 link state and wake-up mechanisms, the
card must remain powered during suspend. Patch 1 uses the existing
dw_pcie_rp::skip_pwrctrl_off flag to skip power-off during suspend and skip
power-on during the init path.

Alsp the btnxpuart driver is extended to obtain a pwrseq descriptor via the
OF graph on the UART controller device in patch 2.

Sherry Sun (8):
  PCI: imx6: Add skip_pwrctrl_off flag support
  power: sequencing: pcie-m2: Add PCI ID for NXP 88W9098 and AW693
    Bluetooth
  Bluetooth: btnxpuart: Add M.2 Bluetooth device support using pwrseq
  arm64: dts: imx8mq-evk: Describe the PCIe M.2 Key E connector
  arm64: dts: imx95-19x19-evk: Describe the PCIe M.2 Key E connector
  arm64: dts: imx8dxl-evk: Describe the PCIe M.2 Key E connector
  arm64: dts: imx8qm-mek: Describe the PCIe M.2 Key E connector
  arm64: dts: imx8qxp-mek: Describe the PCIe M.2 Key E connector

 arch/arm64/boot/dts/freescale/imx8dxl-evk.dts | 56 +++++++++++++-----
 arch/arm64/boot/dts/freescale/imx8mq-evk.dts  | 44 ++++++++++++--
 arch/arm64/boot/dts/freescale/imx8qm-mek.dts  | 58 ++++++++++++++-----
 arch/arm64/boot/dts/freescale/imx8qxp-mek.dts | 54 ++++++++++++-----
 .../boot/dts/freescale/imx95-19x19-evk.dts    | 55 +++++++++++++-----
 drivers/bluetooth/btnxpuart.c                 | 33 ++++++++++-
 drivers/pci/controller/dwc/pci-imx6.c         | 36 +++++++-----
 drivers/power/sequencing/pwrseq-pcie-m2.c     |  4 ++
 8 files changed, 264 insertions(+), 76 deletions(-)

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2.50.1