# Re: \[PATCH v6 4/5\] phy: qcom: m31-eusb2: Set phy type to EUSB2

- From: Thinh Nguyen \<Thinh.Nguyen@synopsys.com\>
- Date: 2026-09-04 23:02:36 
- List: linux-phy
- Page: https://ratatoskr.run/linux-phy/2026/09/17517195
- Thread: https://ratatoskr.run/linux-phy/2026/08/17465837/t.md

```text
On Wed, Aug 26, 2026, Krishna Kurapati wrote:
> USB controllers like DWC3 are agnostic of the kind of phy (USB2/eUSB2)
> connected to it. Set the phy type to EUSB2 to let the controller know
> the phy type when queried during its probe.
> 
> Signed-off-by: Krishna Kurapati <redacted>
> ---
>  drivers/phy/qualcomm/phy-qcom-m31-eusb2.c | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/drivers/phy/qualcomm/phy-qcom-m31-eusb2.c b/drivers/phy/qualcomm/phy-qcom-m31-eusb2.c
> index 0bec8657149c..7e6b16b6952b 100644
> --- a/drivers/phy/qualcomm/phy-qcom-m31-eusb2.c
> +++ b/drivers/phy/qualcomm/phy-qcom-m31-eusb2.c
> @@ -277,6 +277,8 @@ static int m31eusb2_phy_probe(struct platform_device *pdev)
>  		return dev_err_probe(dev, PTR_ERR(phy->phy),
>  				     "failed to create phy\n");
>  
> +	phy_set_type(phy->phy, PHY_TYPE_EUSB2);
> +
>  	ret = devm_regulator_bulk_get_const(dev, M31_EUSB_NUM_VREGS,
>  					    m31_eusb_phy_vregs, &phy->vregs);
>  	if (ret)
> 
> -- 
> 2.34.1
> 

Reviewed-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com>

BR,
Thinh
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```