Re: [PATCH v5 1/3] arm64: dts: fsl: librem5: Add a device tree for the Librem5 devkit

Rob Herring
2019-04-22T13:40:12Z

On Thu, Apr 18, 2019 at 12:44 PM Angus Ainslie <angus@akkea.ca> wrote:
>
> Hi Rob,
>
>
> On 2019-04-18 08:13, Rob Herring wrote:
> > On Wed, Apr 17, 2019 at 09:55:12AM -0700, Angus Ainslie (Purism) wrote:
> >> This is the development kit board for the Librem 5. The current level
> >> of
> >> support yields a working console and is able to boot userspace from
> >> the
> >> Network or eMMC.
> >>
> >> Additional subsystems that are active :
> >>
> >> - Both USB ports
> >> - SD card socket
> >> - WiFi usdhc
> >> - WWAN modem
> >> - GNSS
> >> - GPIO keys
> >> - LEDs
> >> - gyro
> >> - magnetometer
> >> - touchscreen
> >> - pwm
> >> - backlight
> >> - haptic motor
> >>
> >> Signed-off-by: Angus Ainslie (Purism) <angus@akkea.ca>
> >> ---
> >> arch/arm64/boot/dts/freescale/Makefile | 1 +
> >> .../dts/freescale/imx8mq-librem5-devkit.dts | 833
> >> ++++++++++++++++++
> >> 2 files changed, 834 insertions(+)
> >> create mode 100644
> >> arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts
> >>
> >> diff --git a/arch/arm64/boot/dts/freescale/Makefile
> >> b/arch/arm64/boot/dts/freescale/Makefile
> >> index 0bd122f60549..c043aca66572 100644
> >> --- a/arch/arm64/boot/dts/freescale/Makefile
> >> +++ b/arch/arm64/boot/dts/freescale/Makefile
> >> @@ -22,6 +22,7 @@ dtb-$(CONFIG_ARCH_LAYERSCAPE) += fsl-lx2160a-rdb.dtb
> >>
> >> dtb-$(CONFIG_ARCH_MXC) += imx8mm-evk.dtb
> >> dtb-$(CONFIG_ARCH_MXC) += imx8mq-evk.dtb
> >> +dtb-$(CONFIG_ARCH_MXC) += imx8mq-librem5-devkit.dtb
> >> dtb-$(CONFIG_ARCH_MXC) += imx8mq-zii-ultra-rmb3.dtb
> >> dtb-$(CONFIG_ARCH_MXC) += imx8mq-zii-ultra-zest.dtb
> >> dtb-$(CONFIG_ARCH_MXC) += imx8qxp-mek.dtb
> >> diff --git a/arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts
> >> b/arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts
> >> new file mode 100644
> >> index 000000000000..846a72dc7640
> >> --- /dev/null
> >> +++ b/arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts
> >
> >> +&usb3_phy0 {
> >> + #address-cells = <1>;
> >> + #size-cells = <0>;
> >> + status = "okay";
> >> +
> >> + port@0 {
> >> + reg = <0>;
> >> +
> >> + typec_hs: endpoint {
> >> + remote-endpoint = <&usb_con_hs>;
> >> + };
> >> + };
> >> +
> >> + port@1 {
> >> + reg = <1>;
> >> +
> >> + typec_ss: endpoint {
> >> + remote-endpoint = <&usb_con_ss>;
> >> + };
> >> + };
> >
> > This is wrong. The graph should be between the USB controller and the
> > connector. The phy is not involved.
> >
> >> +};
> >> +
> >> +&usb3_phy1 {
> >> + status = "okay";
> >> +};
> >> +
> >> +&usb_dwc3_0 {
> >> + extcon = <&typec_ptn5100>;
> >
> > extcon is deprecated and you should only have the usb-connector
> > binding.
> > From the controller, you can walk the graph to the connector.
> >
>
> I not sure that I'm clear on what you mean. Here's what I think you want
> it changed to.

Yes, this looks correct.

>
> diff --git a/arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts
> b/arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts
> index 846a72dc7640..7b8770fdc5fb 100644
> --- a/arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts
> +++ b/arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts
> @@ -755,51 +755,50 @@
> };
>
> &uart4 { /* BT */
> pinctrl-names = "default";
> pinctrl-0 = <&pinctrl_uart4>, <&pinctrl_bt>;
> uart-has-rtscts;
> status = "okay";
> };
>
> &usb3_phy0 {
> + status = "okay";
> +};
> +
> +&usb3_phy1 {
> + status = "okay";
> +};
> +
> +&usb_dwc3_0 {
> #address-cells = <1>;
> #size-cells = <0>;
> + dr_mode = "otg";
> status = "okay";
>
> port@0 {
> reg = <0>;
>
> typec_hs: endpoint {
> remote-endpoint = <&usb_con_hs>;
> };
> };
>
> port@1 {
> reg = <1>;
>
> typec_ss: endpoint {
> remote-endpoint = <&usb_con_ss>;
> };
> };
> };
>
> -&usb3_phy1 {
> - status = "okay";
> -};
> -
> -&usb_dwc3_0 {
> - extcon = <&typec_ptn5100>;
> - dr_mode = "otg";
> - status = "okay";
> -};
> -
> &usb_dwc3_1 {
> dr_mode = "host";
> status = "okay";
> };
>
>
>
> Thanks
> Angus
>
> >> + dr_mode = "otg";
> >> + status = "okay";
> >> +};
>