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From: Heikki Krogerus <heikki.krogerus@linux.intel.com>
To: Andrei Kuchynski <akuchynski@chromium.org>
Cc: Abhishek Pandit-Subedi <abhishekpandit@chromium.org>,
	Benson Leung <bleung@chromium.org>,
	Jameson Thies <jthies@google.com>,
	Tzung-Bi Shih <tzungbi@kernel.org>,
	linux-usb@vger.kernel.org, chrome-platform@lists.linux.dev,
	Guenter Roeck <groeck@chromium.org>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>,
	"Christian A. Ehrhardt" <lk@c--e.de>,
	Venkat Jayaraman <venkat.jayaraman@intel.com>,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH v3 3/5] usb: typec: ucsi: Set no_mode_control flag
Date: Tue, 9 Sep 2025 12:07:51 +0300	[thread overview]
Message-ID: <aL_uZxBkBfC9Etrk@kuha.fi.intel.com> (raw)
In-Reply-To: <20250905142206.4105351-4-akuchynski@chromium.org>

On Fri, Sep 05, 2025 at 02:22:04PM +0000, Andrei Kuchynski wrote:
> This flag indicates that the PPM allows the OPM to change the currently
> negotiated alternate mode using the SET_NEW_CAM command.
> 
> Signed-off-by: Andrei Kuchynski <akuchynski@chromium.org>
> ---
>  drivers/usb/typec/ucsi/ucsi.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/usb/typec/ucsi/ucsi.c b/drivers/usb/typec/ucsi/ucsi.c
> index 0d6b0cf5a7cd..9f754344a841 100644
> --- a/drivers/usb/typec/ucsi/ucsi.c
> +++ b/drivers/usb/typec/ucsi/ucsi.c
> @@ -1632,6 +1632,7 @@ static int ucsi_register_port(struct ucsi *ucsi, struct ucsi_connector *con)
>  
>  	cap->driver_data = con;
>  	cap->ops = &ucsi_ops;
> +	cap->no_mode_control = !(con->ucsi->cap.features & UCSI_CAP_ALT_MODE_OVERRIDE);

The flag is now used to expose the priority file, but you can't affect
the order in which the UCSI attempts to enter the modes, or can you?

thanks,

-- 
heikki

  reply	other threads:[~2025-09-09  9:07 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-09-05 14:22 [PATCH v3 0/5] USB Type-C alternate mode priorities Andrei Kuchynski
2025-09-05 14:22 ` [PATCH v3 1/5] usb: typec: Add mode_control field to port property Andrei Kuchynski
2025-09-09  8:47   ` Heikki Krogerus
2025-09-10 13:30   ` Greg Kroah-Hartman
2025-09-10 19:34     ` Andrei Kuchynski
2025-09-05 14:22 ` [PATCH v3 2/5] platform/chrome: cros_ec_typec: Set no_mode_control flag Andrei Kuchynski
2025-09-08  3:57   ` Tzung-Bi Shih
2025-09-05 14:22 ` [PATCH v3 3/5] usb: typec: ucsi: " Andrei Kuchynski
2025-09-09  9:07   ` Heikki Krogerus [this message]
2025-09-09  9:22     ` Andrei Kuchynski
2025-09-10 19:36       ` Andrei Kuchynski
2025-09-05 14:22 ` [PATCH v3 4/5] usb: typec: Implement alternate mode priority handling Andrei Kuchynski
2025-09-09  8:50   ` Heikki Krogerus
2025-09-10 13:31   ` Greg Kroah-Hartman
2025-09-10 19:35     ` Andrei Kuchynski
2025-09-11  5:07       ` Greg Kroah-Hartman
2025-09-11  8:46         ` Andrei Kuchynski
2025-09-11 10:41           ` Greg Kroah-Hartman
2025-09-11 13:11             ` Andrei Kuchynski
2025-09-05 14:22 ` [PATCH v3 5/5] usb: typec: Expose alternate mode priority via sysfs Andrei Kuchynski
2025-09-10 13:27   ` Greg Kroah-Hartman
2025-09-10 19:34     ` Andrei Kuchynski

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