Plug in USB-C related bits and pieces to enable USB role switching.
Also, remove dr_mode to enable OTG capability.

Signed-off-by: Biswapriyo Nath <nathbappai@gmail.com>
---
 arch/arm64/boot/dts/qcom/sm6125.dtsi | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/qcom/sm6125.dtsi b/arch/arm64/boot/dts/qcom/sm6125.dtsi
index c84911a98fc..259a24fe24a 100644
--- a/arch/arm64/boot/dts/qcom/sm6125.dtsi
+++ b/arch/arm64/boot/dts/qcom/sm6125.dtsi
@@ -1238,7 +1238,20 @@ usb3_dwc3: usb@4e00000 {
 				snps,dis-u1-entry-quirk;
 				snps,dis-u2-entry-quirk;
 				maximum-speed = "high-speed";
-				dr_mode = "peripheral";
+
+				usb-role-switch;
+
+				ports {
+					#address-cells = <1>;
+					#size-cells = <0>;
+
+					port@0 {
+						reg = <0>;
+
+						usb_dwc3_hs: endpoint {
+						};
+					};
+				};
 			};
 		};
 

-- 
2.53.0

On 3/25/26 7:07 PM, Biswapriyo Nath wrote:
> Plug in USB-C related bits and pieces to enable USB role switching.
> Also, remove dr_mode to enable OTG capability.
> 
> Signed-off-by: Biswapriyo Nath <nathbappai@gmail.com>
> ---

I'm not sure what this is going to do for other 6125 devices
that don't have the Type-C infra wired up.. Does just applying
this commit alone keep peripheral mode working on your phone?

Konrad

On Thu, 26 Mar 2026 10:41:03 +0100 Konrad Dybcio <konrad.dybcio@oss.qualcomm.com> wrote:

> On 3/25/26 7:07 PM, Biswapriyo Nath wrote:
> > Plug in USB-C related bits and pieces to enable USB role switching.
> > Also, remove dr_mode to enable OTG capability.
> > 
> > Signed-off-by: Biswapriyo Nath <nathbappai@gmail.com>
> > ---
> 
> I'm not sure what this is going to do for other 6125 devices
> that don't have the Type-C infra wired up.. Does just applying
> this commit alone keep peripheral mode working on your phone?
> 
> Konrad
> 

Yes, I have verified that USB peripheral mode is working with this
patch only by using USB network[1].

[1]: https://wiki.postmarketos.org/wiki/USB_Network

On 3/26/26 7:28 PM, Biswapriyo Nath wrote:
> On Thu, 26 Mar 2026 10:41:03 +0100 Konrad Dybcio <konrad.dybcio@oss.qualcomm.com> wrote:
> 
>> On 3/25/26 7:07 PM, Biswapriyo Nath wrote:
>>> Plug in USB-C related bits and pieces to enable USB role switching.
>>> Also, remove dr_mode to enable OTG capability.
>>>
>>> Signed-off-by: Biswapriyo Nath <nathbappai@gmail.com>
>>> ---
>>
>> I'm not sure what this is going to do for other 6125 devices
>> that don't have the Type-C infra wired up.. Does just applying
>> this commit alone keep peripheral mode working on your phone?
>>
>> Konrad
>>
> 
> Yes, I have verified that USB peripheral mode is working with this
> patch only by using USB network[1].

Thanks

Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>

Konrad

On Wed, Mar 25, 2026 at 06:07:25PM +0000, Biswapriyo Nath wrote:
> Plug in USB-C related bits and pieces to enable USB role switching.
> Also, remove dr_mode to enable OTG capability.
> 
> Signed-off-by: Biswapriyo Nath <nathbappai@gmail.com>
> ---
>  arch/arm64/boot/dts/qcom/sm6125.dtsi | 15 ++++++++++++++-
>  1 file changed, 14 insertions(+), 1 deletion(-)
> 

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>


-- 
With best wishes
Dmitry

On Wed, Mar 25, 2026 at 06:07:25PM +0000, Biswapriyo Nath wrote:
> Plug in USB-C related bits and pieces to enable USB role switching.
> Also, remove dr_mode to enable OTG capability.
> 
> Signed-off-by: Biswapriyo Nath <nathbappai@gmail.com>
> ---
>  arch/arm64/boot/dts/qcom/sm6125.dtsi | 15 ++++++++++++++-
>  1 file changed, 14 insertions(+), 1 deletion(-)
> 

-- 
With best wishes
Dmitry