[PATCH v3 2/9] arm64: dts: qcom: apq8016-sbc: Add overlay for usb host mode

Maxime Ripard mripard at kernel.org
Mon Sep 11 00:56:36 PDT 2023


On Fri, Sep 08, 2023 at 08:52:18PM +0530, Vignesh Raman wrote:
> Due to the presence of the fastboot micro cable in the CI farm,
> it causes the hardware to remain in gadget mode instead of host mode.
> So it doesn't find the network, which results in failure to mount root
> fs via NFS.
> 
> Add an overlay dtso file that sets the dr_mode to host, allowing
> the USB controllers to work in host mode. This dtso file will be used
> in drm-ci, mesa-ci.
> 
> Overlay DT file uses the sugar syntax [suggested by Dmitry Baryshkov and Maxime Ripard]
> 
> Suggested-by: Dmitry Baryshkov <dmitry.baryshkov at linaro.org>
> Suggested-by: Maxime Ripard <mripard at kernel.org>
> Signed-off-by: Helen Koike <helen.koike at collabora.com>
> Signed-off-by: David Heidelberg <david.heidelberg at collabora.com>
> Signed-off-by: Vignesh Raman <vignesh.raman at collabora.com>
> ---
> 
> v3:
>   - New patch in the series to add device tree overlay in arch/arm64/boot/dts/qcom
> 
> ---
>  arch/arm64/boot/dts/qcom/apq8016-sbc-usb-host.dtso | 8 ++++++++
>  1 file changed, 8 insertions(+)
>  create mode 100644 arch/arm64/boot/dts/qcom/apq8016-sbc-usb-host.dtso
> 
> diff --git a/arch/arm64/boot/dts/qcom/apq8016-sbc-usb-host.dtso b/arch/arm64/boot/dts/qcom/apq8016-sbc-usb-host.dtso
> new file mode 100644
> index 000000000000..a82c26b7eae8
> --- /dev/null
> +++ b/arch/arm64/boot/dts/qcom/apq8016-sbc-usb-host.dtso
> @@ -0,0 +1,8 @@
> +// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
> +
> +/dts-v1/;
> +/plugin/;
> +
> +&usb {
> +         dr_mode = "host";
> +};
> -- 
> 2.40.1
> 

You need to add it to the Makefile too

Maxime
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