On Mon, 4 Sept 2023 at 19:16, Vignesh Raman <vignesh.raman@xxxxxxxxxxxxx> wrote: > > Force db410c to host mode to fix network issue which results in failure > to mount root fs via NFS. > See https://gitlab.freedesktop.org/gfx-ci/linux/-/commit/cb72a629b8c15c80a54dda510743cefd1c4b65b8 > > Use fdtoverlay command to merge base device tree with an overlay > which contains the fix for USB controllers to work in host mode. > > Signed-off-by: Vignesh Raman <vignesh.raman@xxxxxxxxxxxxx> > --- > > v2: > - Use fdtoverlay command to merge overlay dtbo with the base dtb instead of modifying the kernel sources > > --- > drivers/gpu/drm/ci/build.sh | 5 +++++ > .../gpu/drm/ci/dt-overlays/apq8016-sbc-overlay.dts | 13 +++++++++++++ > 2 files changed, 18 insertions(+) > create mode 100644 drivers/gpu/drm/ci/dt-overlays/apq8016-sbc-overlay.dts > > diff --git a/drivers/gpu/drm/ci/build.sh b/drivers/gpu/drm/ci/build.sh > index 7b014287a041..92ffd98cd09e 100644 > --- a/drivers/gpu/drm/ci/build.sh > +++ b/drivers/gpu/drm/ci/build.sh > @@ -92,6 +92,11 @@ done > > if [[ -n ${DEVICE_TREES} ]]; then > make dtbs > + if [[ -e arch/arm64/boot/dts/qcom/apq8016-sbc.dtb ]]; then > + dtc -@ -I dts -O dtb -o drivers/gpu/drm/ci/dt-overlays/apq8016-sbc-overlay.dtbo drivers/gpu/drm/ci/dt-overlays/apq8016-sbc-overlay.dts > + fdtoverlay -i arch/arm64/boot/dts/qcom/apq8016-sbc.dtb -o arch/arm64/boot/dts/qcom/apq8016-sbc-overlay.dtb drivers/gpu/drm/ci/dt-overlays/apq8016-sbc-overlay.dtbo > + mv arch/arm64/boot/dts/qcom/apq8016-sbc-overlay.dtb arch/arm64/boot/dts/qcom/apq8016-sbc.dtb > + fi > cp ${DEVICE_TREES} /lava-files/. > fi > > diff --git a/drivers/gpu/drm/ci/dt-overlays/apq8016-sbc-overlay.dts b/drivers/gpu/drm/ci/dt-overlays/apq8016-sbc-overlay.dts > new file mode 100644 > index 000000000000..57b7604f1c23 > --- /dev/null > +++ b/drivers/gpu/drm/ci/dt-overlays/apq8016-sbc-overlay.dts > @@ -0,0 +1,13 @@ > +/dts-v1/; > +/plugin/; > + > +/ { > + fragment@0 { > + target-path = "/soc@0"; > + __overlay__ { > + usb@78d9000 { > + dr_mode = "host"; > + }; > + }; > + }; > +}; > -- > 2.40.1 Can we use normal dtso syntax here instead of defining fragments manually? -- With best wishes Dmitry
