[PATCH v2] ARM: pbab01: allow USB-OTG port runtime configuration

Sascha Hauer sha at pengutronix.de
Tue Apr 19 23:46:24 PDT 2022


On Tue, Apr 19, 2022 at 02:46:59PM +0200, Andrej Picej wrote:
> Since commit a5a4c1d5a3 ("dts: update to v5.13-rc1"), which synced
> kernel dts, USB-OTG port on phyFLEX board was set to work only in
> peripheral mode. This has to do with phyFLEX baseboard hardware bug,
> which prevents correct USB OTG ID pin detection in kernel code.
> 
> Unlike linux kernel, barebox doesn't support OTG auto-detection mode via
> ID pin. In barebox, user has to select desired USB mode of operation by
> setting 'otg.mode' variable. Thus set the 'dr_mode' property to "otg" to
> be able to later select USB OTG operating mode at runtime (either host
> or peripheral).
> 
> Signed-off-by: Andrej Picej <andrej.picej at norik.com>
> ---
> - rather than deleting the dr_mode property, set the property to "otg"
>   to explicitly set the mode to OTG
> ---
>  arch/arm/dts/imx6qdl-phytec-pbab01.dtsi | 4 ++++
>  1 file changed, 4 insertions(+)

Applied, thanks

Sascha

> 
> diff --git a/arch/arm/dts/imx6qdl-phytec-pbab01.dtsi b/arch/arm/dts/imx6qdl-phytec-pbab01.dtsi
> index 991c7e4fab..88db962535 100644
> --- a/arch/arm/dts/imx6qdl-phytec-pbab01.dtsi
> +++ b/arch/arm/dts/imx6qdl-phytec-pbab01.dtsi
> @@ -15,6 +15,10 @@
>  	status = "okay";
>  };
>  
> +&usbotg {
> +	dr_mode = "otg";
> +};
> +
>  #ifdef USE_STATE_EXAMPLE
>  #include "state-example.dtsi"
>  #endif
> -- 
> 2.25.1
> 
> 
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