linux-kernel - Re: [PATCH] usb: typec: ucsi: drop an unused Kconfig symbol

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Message-ID: <CANFp7mUKoyhL1Qv6tSucsmy_sd90BXC6QeLDmjdpAnYSZ1nfHA@mail.gmail.com>
Date: Tue, 6 Jan 2026 09:57:54 -0800
From: Abhishek Pandit-Subedi <abhishekpandit@...omium.org>
To: Randy Dunlap <rdunlap@...radead.org>
Cc: linux-kernel@...r.kernel.org, Pavan Holla <pholla@...omium.org>, 
	Łukasz Bartosik <ukaszb@...omium.org>, 
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>, Jameson Thies <jthies@...gle.com>, 
	Andrei Kuchynski <akuchynski@...omium.org>, chrome-platform@...ts.linux.dev, 
	Heikki Krogerus <heikki.krogerus@...ux.intel.com>, linux-usb@...r.kernel.org
Subject: Re: [PATCH] usb: typec: ucsi: drop an unused Kconfig symbol

On Sun, Dec 28, 2025 at 11:06 AM Randy Dunlap <rdunlap@...radead.org> wrote:
>
> EXTCON_TCSS_CROS_EC isn't used anywhere else in the kernel tree,
> so drop it from this Kconfig file.
>
> (unless it should be EXTCON_USBC_CROS_EC ?)

Yes, it should have been EXTCON_USBC_CROS_EC. This was eventually
deprecated in favor of using the Type-C connector class and the power
supply class.

Devices that support UCSI will not support the extcon driver (i.e. in
firmware) so removing this entirely for this driver is likely a safe
change.

>
> Fixes: f1a2241778d9 ("usb: typec: ucsi: Implement ChromeOS UCSI driver")
> Signed-off-by: Randy Dunlap <rdunlap@...radead.org>
> ---
> Cc: Pavan Holla <pholla@...omium.org>
> Cc: Abhishek Pandit-Subedi <abhishekpandit@...omium.org>
> Cc: Łukasz Bartosik <ukaszb@...omium.org>
> Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
> Cc: Jameson Thies <jthies@...gle.com>
> Cc: Andrei Kuchynski <akuchynski@...omium.org>
> Cc: chrome-platform@...ts.linux.dev
> Cc: Heikki Krogerus <heikki.krogerus@...ux.intel.com>
> Cc: linux-usb@...r.kernel.org
>
>  drivers/usb/typec/ucsi/Kconfig |    1 -
>  1 file changed, 1 deletion(-)
>
> --- linux-next-20251219.orig/drivers/usb/typec/ucsi/Kconfig
> +++ linux-next-20251219/drivers/usb/typec/ucsi/Kconfig
> @@ -73,7 +73,6 @@ config CROS_EC_UCSI
>         tristate "UCSI Driver for ChromeOS EC"
>         depends on MFD_CROS_EC_DEV
>         depends on CROS_USBPD_NOTIFY
> -       depends on !EXTCON_TCSS_CROS_EC
>         default MFD_CROS_EC_DEV
>         help
>           This driver enables UCSI support for a ChromeOS EC. The EC is

Reviewed-by: Abhishek Pandit-Subedi <abhishekpandit@...omium.org>