linux-kernel - Re: [PATCH v2 3/5] usb: pd: Add helper macro to get Type C cable speed

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Date:   Mon, 4 Sep 2023 10:08:38 +0300
From:   Heikki Krogerus <heikki.krogerus@...ux.intel.com>
To:     Utkarsh Patel <utkarsh.h.patel@...el.com>
Cc:     linux-kernel@...r.kernel.org, linux-usb@...r.kernel.org,
        pmalani@...omium.org, chrome-platform@...ts.linux.dev,
        andriy.shevchenko@...ux.intel.com, bleung@...omium.org
Subject: Re: [PATCH v2 3/5] usb: pd: Add helper macro to get Type C cable
 speed

On Wed, Aug 30, 2023 at 03:39:48PM -0700, Utkarsh Patel wrote:
> Added a helper macro to get the Type C cable speed when provided the
> cable VDO.
> 
> Signed-off-by: Utkarsh Patel <utkarsh.h.patel@...el.com>

Reviewed-by: Heikki Krogerus <heikki.krogerus@...ux.intel.com>

> ---
> Changes in v2:
> - This change is being added as new patch in this series.
> 
>  include/linux/usb/pd_vdo.h | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/include/linux/usb/pd_vdo.h b/include/linux/usb/pd_vdo.h
> index b057250704e8..3a747938cdab 100644
> --- a/include/linux/usb/pd_vdo.h
> +++ b/include/linux/usb/pd_vdo.h
> @@ -376,6 +376,7 @@
>  	 | ((vbm) & 0x3) << 9 | (sbu) << 8 | (sbut) << 7 | ((cur) & 0x3) << 5	\
>  	 | (vbt) << 4 | (sopp) << 3 | ((spd) & 0x7))
>  
> +#define VDO_TYPEC_CABLE_SPEED(vdo)	((vdo) & 0x7)
>  #define VDO_TYPEC_CABLE_TYPE(vdo)	(((vdo) >> 18) & 0x3)
>  
>  /*
> -- 
> 2.25.1

-- 
heikki