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

From: Rob Herring <robh@kernel•org>
To: "Angus Ainslie (Purism)" <angus@akkea•ca>
Cc: "Mark Rutland" <mark.rutland@arm•com>,
	"Jacky Bai" <ping.bai@nxp•com>,
	"Palmer Dabbelt" <palmer@sifive•com>,
	"Bruno Thomsen" <bruno.thomsen@gmail•com>,
	m.felsch@pengutronix•de, "Guo Ren" <guoren@kernel•org>,
	"Manivannan Sadhasivam" <manivannan.sadhasivam@linaro•org>,
	linux-riscv@lists•infradead.org,
	"Fabio Estevam" <festevam@gmail•com>,
	"Andrey Smirnov" <andrew.smirnov@gmail•com>,
	"Kevin Hilman" <khilman@baylibre•com>,
	"NXP Linux Team" <linux-imx@nxp•com>,
	"Thierry Reding" <treding@nvidia•com>,
	devicetree@vger•kernel.org, "Albert Ou" <aou@eecs•berkeley.edu>,
	"Sascha Hauer" <s.hauer@pengutronix•de>,
	"Jonathan Neuschäfer" <j.neuschaefer@gmx•net>,
	linux-mediatek@lists•infradead.org,
	"Paul Walmsley" <paul.walmsley@sifive•com>,
	"Jonathan Cameron" <Jonathan.Cameron@huawei•com>,
	"Matthias Brugger" <matthias.bgg@gmail•com>,
	linux-arm-kernel@lists•infradead.org,
	"Aisheng Dong" <aisheng.dong@nxp•com>,
	linux-kernel@vger•kernel.org,
	"Pengutronix Kernel Team" <kernel@pengutronix•de>,
	angus.ainslie@puri•sm, "Shawn Guo" <shawnguo@kernel•org>
Subject: Re: [PATCH v5 1/3] arm64: dts: fsl: librem5: Add a device tree for the Librem5 devkit
Date: Thu, 18 Apr 2019 10:13:50 -0500	[thread overview]
Message-ID: <20190418151350.GC32345@bogus> (raw)
In-Reply-To: <20190417165514.18689-2-angus@akkea.ca>

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.

> +	dr_mode = "otg";
> +	status = "okay";
> +};

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