On Fri, Oct 20, 2023 at 12:25 PM Andrejs Cainikovs <andrejs.cainik...@gmail.com> wrote: > > From: Andrejs Cainikovs <andrejs.cainik...@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.cainik...@toradex.com>
Reviewed-by: Fabio Estevam <feste...@gmail.com>
