diff options
| author |   Frank Li <Frank.Li@nxp.com> | 2024-10-23 17:03:13 -0400 |
|---|---|---|
| committer |   Shawn Guo <shawnguo@kernel.org> | 2024-11-04 16:46:32 +0800 |
| commit | c771d311b1901cd4679c8fc7f89a882fe07cf4a0 (patch) | |
| tree | 8cf7f9c1e43fc6d19a221f840e40a30eac716d95 | |
| parent | arm64: dts: layerscape: remove en25s64 and only keep jedec,spi-nor compatible string (diff) | |
| download | wireguard-linux-c771d311b1901cd4679c8fc7f89a882fe07cf4a0.tar.xz wireguard-linux-c771d311b1901cd4679c8fc7f89a882fe07cf4a0.zip | |
arm64: dts: imx8mn-tqma8mqnl-mba8mx-usbot: fix coexistence of output-low and output-high in GPIO
Fix the issue where both 'output-low' and 'output-high' exist under GPIO
hog nodes (rst_usb_hub_hog and sel_usb_hub_hog) when applying device
tree overlays. Since /delete-property/ is not supported in the overlays,
setting 'output-low' results in both properties being present. The
workaround is to disable these hogs and create new ones with 'output-low'
as needed.
Fix below CHECK_DTBS warning:
arch/arm64/boot/dts/freescale/imx8mn-tqma8mqnl-mba8mx-usbotg.dtb: sel-usb-hub-hog:
{'output-low': True, 'gpio-hog': True, 'gpios': [[1, 0]], 'output-high': True, 'phandle': 108, '$nodename': ['sel-usb-hub-hog']}
is valid under each of {'required': ['output-low']}, {'required': ['output-high']
Fixes: 3f6fc30abebc ("arm64: dts: imx8mn: tqma8mqnl-mba8mx: Add USB DR overlay")
Signed-off-by: Frank Li <Frank.Li@nxp.com>
Reviewed-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Diffstat (limited to '')
| -rw-r--r-- | arch/arm64/boot/dts/freescale/imx8mn-tqma8mqnl-mba8mx-usbotg.dtso | 29 |
1 files changed, 27 insertions, 2 deletions
diff --git a/arch/arm64/boot/dts/freescale/imx8mn-tqma8mqnl-mba8mx-usbotg.dtso b/arch/arm64/boot/dts/freescale/imx8mn-tqma8mqnl-mba8mx-usbotg.dtso index 96db07fc9bec..1f2a0fe70a0a 100644 --- a/arch/arm64/boot/dts/freescale/imx8mn-tqma8mqnl-mba8mx-usbotg.dtso +++ b/arch/arm64/boot/dts/freescale/imx8mn-tqma8mqnl-mba8mx-usbotg.dtso @@ -29,12 +29,37 @@ }; }; +/* + * rst_usb_hub_hog and sel_usb_hub_hog have property 'output-high', + * dt overlay don't support /delete-property/. Both 'output-low' and + * 'output-high' will be exist under hog nodes if overlay file set + * 'output-low'. Workaround is disable these hog and create new hog with + * 'output-low'. + */ + &rst_usb_hub_hog { - output-low; + status = "disabled"; +}; + +&expander0 { + rst-usb-low-hub-hog { + gpio-hog; + gpios = <13 0>; + output-low; + line-name = "RST_USB_HUB#"; + }; }; &sel_usb_hub_hog { - output-low; + status = "disabled"; +}; + +&gpio2 { + sel-usb-low-hub-hog { + gpio-hog; + gpios = <1 GPIO_ACTIVE_HIGH>; + output-low; + }; }; &usbotg1 { |