linux-kernel - Re: [PATCH 2/3] dt-bindings: connector: Add SVDM VDO properties

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Date:   Tue, 26 Jan 2021 07:15:59 -0800
From:   Guenter Roeck <linux@...ck-us.net>
To:     Kyle Tso <kyletso@...gle.com>, heikki.krogerus@...ux.intel.com,
        gregkh@...uxfoundation.org, robh+dt@...nel.org,
        hdegoede@...hat.com, badhri@...gle.com
Cc:     linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org
Subject: Re: [PATCH 2/3] dt-bindings: connector: Add SVDM VDO properties

On 1/26/21 12:45 AM, Kyle Tso wrote:
> Add bindings of VDO properties of USB PD SVDM so that they can be
> defined in device tree.
> 
> Signed-off-by: Kyle Tso <kyletso@...gle.com>

Are you also going to update
Documentation/devicetree/bindings/connector/usb-connector.yaml ?

Thanks,
Guenter

> ---
>  include/dt-bindings/usb/pd.h | 53 +++++++++++++++++++++++++++++++++++-
>  1 file changed, 52 insertions(+), 1 deletion(-)
> 
> diff --git a/include/dt-bindings/usb/pd.h b/include/dt-bindings/usb/pd.h
> index 0352893697f0..b99cb4a0cd12 100644
> --- a/include/dt-bindings/usb/pd.h
> +++ b/include/dt-bindings/usb/pd.h
> @@ -93,4 +93,55 @@
>  #define FRS_DEFAULT_POWER      1
>  #define FRS_5V_1P5A            2
>  #define FRS_5V_3A              3
> - #endif /* __DT_POWER_DELIVERY_H */
> +
> +/*
> + * SVDM Identity Header
> + * --------------------
> + * <31>     :: data capable as a USB host
> + * <30>     :: data capable as a USB device
> + * <29:27>  :: product type (UFP / Cable / VPD)
> + * <26>     :: modal operation supported (1b == yes)
> + * <25:23>  :: product type (DFP) (SVDM version 2.0+ only; set to zero in version 1.0)
> + * <22:21>  :: connector type (SVDM version 2.0+ only; set to zero in version 1.0)
> + * <20:16>  :: Reserved, Shall be set to zero
> + * <15:0>   :: USB-IF assigned VID for this cable vendor
> + */
> +/* SOP Product Type (UFP) */
> +#define IDH_PTYPE_NOT_UFP       0
> +#define IDH_PTYPE_HUB           1
> +#define IDH_PTYPE_PERIPH        2
> +#define IDH_PTYPE_PSD           3
> +#define IDH_PTYPE_AMA           5
> +
> +/* SOP' Product Type (Cable Plug / VPD) */
> +#define IDH_PTYPE_NOT_CABLE     0
> +#define IDH_PTYPE_PCABLE        3
> +#define IDH_PTYPE_ACABLE        4
> +#define IDH_PTYPE_VPD           6
> +
> +/* SOP Product Type (DFP) */
> +#define IDH_PTYPE_NOT_DFP       0
> +#define IDH_PTYPE_DFP_HUB       1
> +#define IDH_PTYPE_DFP_HOST      2
> +#define IDH_PTYPE_DFP_PB        3
> +
> +#define VDO_IDH(usbh, usbd, ufp_cable, is_modal, dfp, conn, vid)                \
> +	((usbh) << 31 | (usbd) << 30 | ((ufp_cable) & 0x7) << 27                \
> +	 | (is_modal) << 26 | ((dfp) & 0x7) << 23 | ((conn) & 0x3) << 21        \
> +	 | ((vid) & 0xffff))
> +
> +/*
> + * Cert Stat VDO
> + * -------------
> + * <31:0>  : USB-IF assigned XID for this cable
> + */
> +#define VDO_CERT(xid)		((xid) & 0xffffffff)
> +
> +/*
> + * Product VDO
> + * -----------
> + * <31:16> : USB Product ID
> + * <15:0>  : USB bcdDevice
> + */
> +#define VDO_PRODUCT(pid, bcd)   (((pid) & 0xffff) << 16 | ((bcd) & 0xffff))
> +#endif /* __DT_POWER_DELIVERY_H */
>