linux-kernel - Re: [PATCH 1/2] platform/chrome: cros_ec_typec: Skip port partner check in configure

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Date:   Fri, 5 Feb 2021 12:07:16 -0800
From:   Prashant Malani <pmalani@...omium.org>
To:     Rajmohan Mani <rajmohan.mani@...el.com>
Cc:     Benson Leung <bleung@...omium.org>,
        Enric Balletbo i Serra <enric.balletbo@...labora.com>,
        Guenter Roeck <groeck@...omium.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Heikki Krogerus <heikki.krogerus@...ux.intel.com>
Subject: Re: [PATCH 1/2] platform/chrome: cros_ec_typec: Skip port partner
 check in configure_mux()

Hi Raj,

On Fri, Feb 5, 2021 at 11:52 AM Rajmohan Mani <rajmohan.mani@...el.com> wrote:
>
> For certain needs like updating the USB4 retimer firmware when no
> device are connected, the Type-C ports require mux configuration,
> to be able to communicate with the retimer. So removed the above
> check to allow for mux configuration of Type-C ports, to enable
> retimer communication.
>
> Signed-off-by: Rajmohan Mani <rajmohan.mani@...el.com>
Reviewed-by: Prashant Malani <pmalani@...omium.org>

> ---
>  drivers/platform/chrome/cros_ec_typec.c | 3 ---
>  1 file changed, 3 deletions(-)
>
> diff --git a/drivers/platform/chrome/cros_ec_typec.c b/drivers/platform/chrome/cros_ec_typec.c
> index e724a5eaef1c..3d8ff3f8a514 100644
> --- a/drivers/platform/chrome/cros_ec_typec.c
> +++ b/drivers/platform/chrome/cros_ec_typec.c
> @@ -536,9 +536,6 @@ static int cros_typec_configure_mux(struct cros_typec_data *typec, int port_num,
>         enum typec_orientation orientation;
>         int ret;
>
> -       if (!port->partner)
> -               return 0;
> -
>         if (mux_flags & USB_PD_MUX_POLARITY_INVERTED)
>                 orientation = TYPEC_ORIENTATION_REVERSE;
>         else
> --
> 2.30.0
>