linux-kernel - RE: [PATCH v2 1/2] platform/chrome: cros_ec_typec: Send enum values to usb_role_switch_set

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Date:   Thu, 30 Jul 2020 23:02:28 +0000
From:   "Shaikh, Azhar" <azhar.shaikh@...el.com>
To:     Prashant Malani <pmalani@...omium.org>
CC:     "bleung@...omium.org" <bleung@...omium.org>,
        "enric.balletbo@...labora.com" <enric.balletbo@...labora.com>,
        "groeck@...omium.org" <groeck@...omium.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "heikki.krogerus@...ux.intel.com" <heikki.krogerus@...ux.intel.com>,
        "Patel, Utkarsh H" <utkarsh.h.patel@...el.com>,
        "Bowman, Casey G" <casey.g.bowman@...el.com>,
        "Mani, Rajmohan" <rajmohan.mani@...el.com>
Subject: RE: [PATCH v2 1/2] platform/chrome: cros_ec_typec: Send enum values
 to usb_role_switch_set_role()

Hi Prashant,


> -----Original Message-----
> From: Prashant Malani <pmalani@...omium.org>
> Sent: Thursday, July 30, 2020 3:59 PM
> To: Shaikh, Azhar <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; Patel, Utkarsh H
> <utkarsh.h.patel@...el.com>; Bowman, Casey G
> <casey.g.bowman@...el.com>; Mani, Rajmohan
> <rajmohan.mani@...el.com>
> Subject: Re: [PATCH v2 1/2] platform/chrome: cros_ec_typec: Send enum
> values to usb_role_switch_set_role()
> 
> Hi Azhar,
> 
> On Thu, Jul 30, 2020 at 03:56:08PM -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
> > 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>
> > ---
> 
> Please add the list of changes in each version after the "---" line.

I have added those in the cover letter.
> 
> >  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
> >