linux-kernel - Re: [PATCH] platform/chrome: cros_ec_typec: Send enum values to usb_role_switch_set

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Message-ID: <20200728213655.GC2996678@google.com>
Date:   Tue, 28 Jul 2020 14:36:55 -0700
From:   Prashant Malani <pmalani@...omium.org>
To:     Azhar Shaikh <azhar.shaikh@...el.com>
Cc:     bleung@...omium.org, enric.balletbo@...labora.com,
        groeck@...omium.org, linux-kernel@...r.kernel.org,
        heikki.krogerus@...ux.intel.com, utkarsh.h.patel@...el.com,
        casey.g.bowman@...el.com, rajmohan.mani@...el.com
Subject: Re: [PATCH] platform/chrome: cros_ec_typec: Send enum values to
 usb_role_switch_set_role()

Hi Azhar,

On Tue, Jul 28, 2020 at 02:24:46PM -0700, Azhar Shaikh wrote:
> usb_role_switch_set_role() has the second argument as enum for usb_role.
> Currently depending upon the data role i.e. UFP(0) or DFP(1) is sent.
> This eventually translates to USB_ROLE_NONE in case of UFP and
> USB_ROLE_DEVICE in case of DFP. Correct this by sending correct enum
> values as USB_ROLE_DEVICE in case of UFP and USB_ROLE_HOST in case of
> UFP.
nit: DFP
> 
> Fixes: 7e7def15fa4b ("platform/chrome: cros_ec_typec: Add USB mux control")
> Signed-off-by: Azhar Shaikh <azhar.shaikh@...el.com>
> Cc: Prashant Malani <pmalani@...omium.org>
Reviewed-by: Prashant Malani <pmalani@...omium.org>
> ---
>  drivers/platform/chrome/cros_ec_typec.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/platform/chrome/cros_ec_typec.c b/drivers/platform/chrome/cros_ec_typec.c
> index 3eae01f4c9f7..eb4713b7ae14 100644
> --- a/drivers/platform/chrome/cros_ec_typec.c
> +++ b/drivers/platform/chrome/cros_ec_typec.c
> @@ -590,7 +590,8 @@ static int cros_typec_port_update(struct cros_typec_data *typec, int port_num)
>  		dev_warn(typec->dev, "Configure muxes failed, err = %d\n", ret);
>  
>  	return usb_role_switch_set_role(typec->ports[port_num]->role_sw,
> -					!!(resp.role & PD_CTRL_RESP_ROLE_DATA));
> +				       resp.role & PD_CTRL_RESP_ROLE_DATA
> +				       ? USB_ROLE_HOST : USB_ROLE_DEVICE);
>  }
>  
>  static int cros_typec_get_cmd_version(struct cros_typec_data *typec)
> -- 
> 2.17.1
>