[PATCH v1] apalis-imx8: add USBH_EN gpio hog

[Fabio Estevam]

On Fri, Oct 20, 2023 at 12:25 PM Andrejs Cainikovs
<andrejs.cainikovs at gmail.com> wrote:
>
> From: Andrejs Cainikovs <andrejs.cainikovs at toradex.com>
>
> USB host interface is not working on some Apalis Toradex carrier
> boards with Apalis iMX8 SoM. This is due to USBH_EN pin, which
> powers USB peripherals, having a strong pull-down on some boards,
> and a weak pull-down on the others. This USBH_EN pin is left
> unconfigured, which means it is in its default state at cold boot:
> input with a strong pull-up. As a result, carrier boards with a
> weak pull-down have this signal high enough to trigger power
> delivery to USB peripherals, and opposite - boards with strong
> pull-down on USBH_EN have this signal below the threshold needed
> to trigger USB power delivery.
> This change configures the USBH_EN pin as gpio hog, fixing this
> issue for all Apalis carrier boards regardless of pull-down
> resistor value.
>
> Also, update apalis-imx8_defconfig via savedefconfig.
>
> Signed-off-by: Andrejs Cainikovs <andrejs.cainikovs at toradex.com>

Applied, thanks.