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Date: Sat, 27 May 2023 00:57:01 +0530
From: Bhupesh Sharma <bhupesh.sharma@...aro.org>
To: Bjorn Andersson <andersson@...nel.org>
Cc: linux-arm-msm@...r.kernel.org, quic_schowdhu@...cinc.com,
agross@...nel.org, konrad.dybcio@...aro.org,
linux-kernel@...r.kernel.org, bhupesh.linux@...il.com,
robh+dt@...nel.org, devicetree@...r.kernel.org
Subject: Re: [PATCH v3] arm64: dts: qcom: sm6115: Add EUD dt node and dwc3 connector
Hi Bjorn,
On Sat, 27 May 2023 at 00:28, Bjorn Andersson <andersson@...nel.org> wrote:
>
> On Wed, Jan 04, 2023 at 03:42:28PM +0530, Bhupesh Sharma wrote:
> > Add the Embedded USB Debugger(EUD) device tree node for
> > SM6115 / SM4250 SoC.
> >
> > The node contains EUD base register region, EUD mode manager
> > register region and TCSR Check register region along with the
> > interrupt entry.
> >
> > Also add the typec connector node for EUD which is attached to
> > EUD node via port. EUD is also attached to DWC3 node via port.
> >
> > To enable the role switch, we need to set dr_mode = "otg" property
> > for 'usb_dwc3' sub-node in the board dts file.
> >
> > Also the EUD device can be enabled on a board once linux is boot'ed
> > by setting:
> > $ echo 1 > /sys/bus/platform/drivers/qcom_eud/../enable
> >
>
> I was under the impression that you where working on some updates to EUD
> and was going to resend this, but I don't find a new version, and I
> don't see an on-list reply from me.
>
> So just to make sure this isn't lost any longer... Can you please respin
> this to correct the dtc warnings?
Yes, we already have the v6 for this series here:
https://lore.kernel.org/linux-arm-msm/20230517211756.2483552-1-bhupesh.sharma@linaro.org/
Thanks,
Bhupesh
> > Cc: Souradeep Chowdhury <quic_schowdhu@...cinc.com>
> > Signed-off-by: Bhupesh Sharma <bhupesh.sharma@...aro.org>
> > ---
> > - v2 can be viewed here: https://lore.kernel.org/linux-arm-msm/20230104052047.3945983-1-bhupesh.sharma@linaro.org
> > - In v3, fix the errors reported by '$ make dtbs_check' for the port sub node:
> > ports:
> > 'oneOf' conditional failed, one must be fixed:
> > 'port' is a required property
> > '#address-cells' is a required property
> > '#size-cells' is a required property
> > - This patch is based on my earlier sm6115 usb related changes, which can
> > be seen here:
> > https://lore.kernel.org/linux-arm-msm/20221215094532.589291-1-bhupesh.sharma@linaro.org/
> > - This patch is also dependent on my sm6115 eud dt-binding and driver changes
> > (v2) sent earlier, which can be seen here:
> > https://lore.kernel.org/linux-arm-msm/20230103150419.3923421-1-bhupesh.sharma@linaro.org/
> >
> > arch/arm64/boot/dts/qcom/sm6115.dtsi | 46 ++++++++++++++++++++++++++++
> > 1 file changed, 46 insertions(+)
> >
> > diff --git a/arch/arm64/boot/dts/qcom/sm6115.dtsi b/arch/arm64/boot/dts/qcom/sm6115.dtsi
> > index 030763187cc3f..a1a4f659587f3 100644
> > --- a/arch/arm64/boot/dts/qcom/sm6115.dtsi
> > +++ b/arch/arm64/boot/dts/qcom/sm6115.dtsi
> > @@ -170,6 +170,18 @@ core3 {
> > };
> > };
> >
> > + eud_typec: connector {
> > + compatible = "usb-c-connector";
> > +
> > + ports {
> > + port@0 {
> > + con_eud: endpoint {
> > + remote-endpoint = <&eud_con>;
> > + };
> > + };
> > + };
> > + };
> > +
> > firmware {
> > scm: scm {
> > compatible = "qcom,scm-sm6115", "qcom,scm";
> > @@ -565,6 +577,33 @@ gcc: clock-controller@...0000 {
> > #power-domain-cells = <1>;
> > };
> >
> > + eud: eud@...0000 {
> > + compatible = "qcom,sm6115-eud", "qcom,eud";
> > + reg = <0x01610000 0x2000>,
> > + <0x01612000 0x1000>,
> > + <0x003e5018 0x4>;
> > + interrupts = <GIC_SPI 189 IRQ_TYPE_LEVEL_HIGH>;
> > + status = "disabled";
> > +
> > + ports {
> > + #address-cells = <1>;
> > + #size-cells = <0>;
> > + port@0 {
> > + reg = <0>;
> > + eud_ep: endpoint {
> > + remote-endpoint = <&usb2_role_switch>;
> > + };
> > + };
> > +
> > + port@1 {
> > + reg = <1>;
> > + eud_con: endpoint {
> > + remote-endpoint = <&con_eud>;
> > + };
> > + };
> > + };
> > + };
> > +
> > usb_hsphy: phy@...3000 {
> > compatible = "qcom,sm6115-qusb2-phy";
> > reg = <0x01613000 0x180>;
> > @@ -1064,6 +1103,13 @@ usb_dwc3: usb@...0000 {
> > snps,has-lpm-erratum;
> > snps,hird-threshold = /bits/ 8 <0x10>;
> > snps,usb3_lpm_capable;
> > + usb-role-switch;
> > +
> > + port {
> > + usb2_role_switch: endpoint {
> > + remote-endpoint = <&eud_ep>;
> > + };
> > + };
> > };
> > };
> >
> > --
> > 2.38.1
> >
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