linux-kernel - Re: [PATCH 1/2] platform/chrome: cros_ec_typec: Add TBT pd

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Date:   Fri, 26 Jun 2020 12:04:52 -0700
From:   Prashant Malani <pmalani@...omium.org>
To:     Enric Balletbo i Serra <enric.balletbo@...labora.com>
Cc:     Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
        Benson Leung <bleung@...omium.org>,
        Guenter Roeck <groeck@...omium.org>,
        Gwendal Grignou <gwendal@...omium.org>,
        Mark Brown <broonie@...nel.org>,
        Tzung-Bi Shih <tzungbi@...gle.com>,
        Yicheng Li <yichengli@...omium.org>
Subject: Re: [PATCH 1/2] platform/chrome: cros_ec_typec: Add TBT pd_ctrl fields

Thanks Enric!

On Fri, Jun 26, 2020 at 2:11 AM Enric Balletbo i Serra
<enric.balletbo@...labora.com> wrote:
>
> Hi Prashant,
>
> On 24/6/20 10:09, Prashant Malani wrote:
> > To support Thunderbolt compatibility mode, synchronize
> > ec_response_usb_pd_control_v2 with the Chrome EC version, so that
> > we get the Thunderbolt related control fields and macros.
> >
> > Signed-off-by: Prashant Malani <pmalani@...omium.org>
>
> Applied both patches for 5.9
>
> > ---
> >  .../linux/platform_data/cros_ec_commands.h    | 19 +++++++++++++++----
> >  1 file changed, 15 insertions(+), 4 deletions(-)
> >
> > diff --git a/include/linux/platform_data/cros_ec_commands.h b/include/linux/platform_data/cros_ec_commands.h
> > index a7b0fc440c35..b808570bdd04 100644
> > --- a/include/linux/platform_data/cros_ec_commands.h
> > +++ b/include/linux/platform_data/cros_ec_commands.h
> > @@ -4917,15 +4917,26 @@ struct ec_response_usb_pd_control_v1 {
> >  #define USBC_PD_CC_UFP_ATTACHED      4 /* UFP attached to usbc */
> >  #define USBC_PD_CC_DFP_ATTACHED      5 /* DPF attached to usbc */
> >
> > +/* Active/Passive Cable */
> > +#define USB_PD_CTRL_ACTIVE_CABLE        BIT(0)
> > +/* Optical/Non-optical cable */
> > +#define USB_PD_CTRL_OPTICAL_CABLE       BIT(1)
> > +/* 3rd Gen TBT device (or AMA)/2nd gen tbt Adapter */
> > +#define USB_PD_CTRL_TBT_LEGACY_ADAPTER  BIT(2)
> > +/* Active Link Uni-Direction */
> > +#define USB_PD_CTRL_ACTIVE_LINK_UNIDIR  BIT(3)
> > +
> >  struct ec_response_usb_pd_control_v2 {
> >       uint8_t enabled;
> >       uint8_t role;
> >       uint8_t polarity;
> >       char state[32];
> > -     uint8_t cc_state; /* USBC_PD_CC_*Encoded cc state */
> > -     uint8_t dp_mode;  /* Current DP pin mode (MODE_DP_PIN_[A-E]) */
> > -     /* CL:1500994 Current cable type */
> > -     uint8_t reserved_cable_type;
> > +     uint8_t cc_state;       /* enum pd_cc_states representing cc state */
> > +     uint8_t dp_mode;        /* Current DP pin mode (MODE_DP_PIN_[A-E]) */
> > +     uint8_t reserved;       /* Reserved for future use */
> > +     uint8_t control_flags;  /* USB_PD_CTRL_*flags */
> > +     uint8_t cable_speed;    /* TBT_SS_* cable speed */
> > +     uint8_t cable_gen;      /* TBT_GEN3_* cable rounded support */
> >  } __ec_align1;
> >
> >  #define EC_CMD_USB_PD_PORTS 0x0102
> >