Re: [PATCH] usb: typec: ucsi: fix gpio-based orientation detection

From: Dmitry Baryshkov
Date: Fri Dec 08 2023 - 07:38:09 EST


On Fri, 8 Dec 2023 at 14:37, Johan Hovold <johan+linaro@xxxxxxxxxx> wrote:
>
> Fix the recently added connector sanity check which was off by one and
> prevented orientation notifications from being handled correctly for the
> second port when using GPIOs to determine orientation.
>
> Fixes: c6165ed2f425 ("usb: ucsi: glink: use the connector orientation GPIO to provide switch events")
> Cc: Neil Armstrong <neil.armstrong@xxxxxxxxxx>
> Signed-off-by: Johan Hovold <johan+linaro@xxxxxxxxxx>

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>

> ---
>
> I found this one through inspection when skimming the driver.
>
> Johan
>
>
> drivers/usb/typec/ucsi/ucsi_glink.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/usb/typec/ucsi/ucsi_glink.c b/drivers/usb/typec/ucsi/ucsi_glink.c
> index db6e248f8208..4853141cd10c 100644
> --- a/drivers/usb/typec/ucsi/ucsi_glink.c
> +++ b/drivers/usb/typec/ucsi/ucsi_glink.c
> @@ -228,7 +228,7 @@ static void pmic_glink_ucsi_notify(struct work_struct *work)
>
> con_num = UCSI_CCI_CONNECTOR(cci);
> if (con_num) {
> - if (con_num < PMIC_GLINK_MAX_PORTS &&
> + if (con_num <= PMIC_GLINK_MAX_PORTS &&
> ucsi->port_orientation[con_num - 1]) {
> int orientation = gpiod_get_value(ucsi->port_orientation[con_num - 1]);
>
> --
> 2.41.0
>


--
With best wishes
Dmitry