[PATCH 0/7] PCI: mediatek-gen3: add power control support

[Manivannan Sadhasivam]

On Wed, Feb 25, 2026 at 03:22:17PM +0800, Chen-Yu Tsai wrote:
> Hi folks,
> 
> This series adds power control support to the MediaTek PCIe gen3
> controller driver. This allows proper modeling of WiFi and NVMe
> adapters in the device tree and control over their power supplies.
> 
> Patch 1 through 4 are cleanups and minor improvements to the driver.
> 
> Patch 5 adds power control support using the new pwrctrl API to the
> PCIe controller driver.
> 
> Patch 6 adds the WiFi and BT power supplies for the MT8195 Cherry design.
> This is actually a M.2 E-key slot, but support for that is still WIP [1].
> And even with it merged, support for the USB side still needs to be
> figured out.
> 
> We can either merge this as is for now, and do another conversion later,
> or just keep this one out. However this is still an improvement over
> the current device tree, in which the power for the slot is always on
> using a pinctrl setting.
> 
> Patch 7 adds the M.2 M-key NVMe slot found on MT8195 Dojo Chromebooks.
> This change actually makes use of the M.2 pwrseq driver.
> 

Thanks a lot for doing this! I'll also try to get the Key E support for v7.1.

For the whole series,

Reviewed-by: Manivannan Sadhasivam <mani at kernel.org>

- Mani

> 
> Please have a look.
> 
> 
> Thanks
> ChenYu
> 
> [1] https://lore.kernel.org/linux-pci/20260224-pci-m2-e-v5-0-dd9b9501d33c@oss.qualcomm.com/
> 
> Chen-Yu Tsai (7):
>   PCI: mediatek-gen3: Clean up mtk_pcie_parse_port() with
>     dev_err_probe()
>   PCI: mediatek-gen3: Add error path for probe and resume driver
>     callbacks
>   PCI: mediatek-gen3: Split out device power helpers
>   PCI: mediatek-gen3: Disable device if further setup fails
>   PCI: mediatek-gen3: Integrate new pwrctrl API
>   arm64: dts: mediatek: mt8195-cherry: add WiFi PCIe and BT USB power
>     supplies
>   arm64: dts: mediatek: mt8195-cherry-dojo: Describe M.2 M-key NVMe slot
> 
>  .../dts/mediatek/mt8195-cherry-dojo-r1.dts    |  38 ++++
>  .../boot/dts/mediatek/mt8195-cherry.dtsi      |  47 +++--
>  drivers/pci/controller/pcie-mediatek-gen3.c   | 185 +++++++++++-------
>  3 files changed, 183 insertions(+), 87 deletions(-)
> 
> -- 
> 2.53.0.414.gf7e9f6c205-goog
> 

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