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From: Heikki Krogerus <heikki.krogerus@linux.intel.com>
To: kernel@resetko.pl
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Guenter Roeck <linux@roeck-us.net>,
	linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org,
	Mark Pearson <mpearson-lenovo@squebb.ca>,
	stable@vger.kernel.org
Subject: Re: [PATCH v2 1/2] usb: typec: ucsi: acpi: Rename the Acer zero version quirk
Date: Fri, 6 Nov 2026 17:42:56 +0100	[thread overview]
Message-ID: <au4DkMViEzQEHLHd@black.igk.intel.com> (raw)
In-Reply-To: <20261103-ucsi-lenovo-t14g2a-v2-1-e85c659b56a2@resetko.pl>

On Tue, Nov 03, 2026 at 05:10:20PM +0100, Stanisław Titenko via B4 Relay wrote:
> From: Stanisław Titenko <kernel@resetko.pl>
> 
> The quirk added for the Acer Nitro ANV15-41 is not specific to that
> machine: it substitutes UCSI 1.2 when the firmware reports a zero
> version, which other platforms with the same firmware bug need too.
> 
> Rename ucsi_acer_read_version() and ucsi_acer_ops to
> ucsi_zero_version_read_version() and ucsi_zero_version_ops, so that
> they can be shared with other machines.
> 
> No functional change.
> 
> Cc: stable@vger.kernel.org # needed by the next patch
> Assisted-by: pi:claude-opus-5-5
> Signed-off-by: Stanisław Titenko <kernel@resetko.pl>

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

> ---
>  drivers/usb/typec/ucsi/ucsi_acpi.c | 8 ++++----
>  1 file changed, 4 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/usb/typec/ucsi/ucsi_acpi.c b/drivers/usb/typec/ucsi/ucsi_acpi.c
> index 5697ccc24ec3..47ba0e15b8ba 100644
> --- a/drivers/usb/typec/ucsi/ucsi_acpi.c
> +++ b/drivers/usb/typec/ucsi/ucsi_acpi.c
> @@ -121,7 +121,7 @@ static const struct ucsi_operations ucsi_acpi_ops = {
>  	.async_control = ucsi_acpi_async_control
>  };
>  
> -static int ucsi_acer_read_version(struct ucsi *ucsi, u16 *version)
> +static int ucsi_zero_version_read_version(struct ucsi *ucsi, u16 *version)
>  {
>  	struct ucsi_acpi *ua = ucsi_get_drvdata(ucsi);
>  	int ret;
> @@ -138,8 +138,8 @@ static int ucsi_acer_read_version(struct ucsi *ucsi, u16 *version)
>  	return 0;
>  }
>  
> -static const struct ucsi_operations ucsi_acer_ops = {
> -	.read_version = ucsi_acer_read_version,
> +static const struct ucsi_operations ucsi_zero_version_ops = {
> +	.read_version = ucsi_zero_version_read_version,
>  	.read_cci = ucsi_acpi_read_cci,
>  	.poll_cci = ucsi_acpi_poll_cci,
>  	.read_message_in = ucsi_acpi_read_message_in,
> @@ -194,7 +194,7 @@ static const struct dmi_system_id ucsi_acpi_quirks[] = {
>  			DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
>  			DMI_MATCH(DMI_PRODUCT_NAME, "Nitro ANV15-41"),
>  		},
> -		.driver_data = (void *)&ucsi_acer_ops,
> +		.driver_data = (void *)&ucsi_zero_version_ops,
>  	},
>  	{
>  		.matches = {
> 
> -- 
> 2.56.0
> 

-- 
heikki

  reply	other threads:[~2026-11-06 16:43 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-11-03 16:10 [PATCH v2 0/2] usb: typec: ucsi: acpi: Zero version quirk for Lenovo ThinkPad T14 Gen 2a Stanisław Titenko via B4 Relay
2026-11-03 16:10 ` [PATCH v2 1/2] usb: typec: ucsi: acpi: Rename the Acer zero version quirk Stanisław Titenko via B4 Relay
2026-11-06 16:42   ` Heikki Krogerus [this message]
2026-11-03 16:10 ` [PATCH v2 2/2] usb: typec: ucsi: acpi: Assume UCSI 1.2 on Lenovo ThinkPad T14 Gen 2a Stanisław Titenko via B4 Relay
2026-11-06 16:54   ` Heikki Krogerus
2026-11-06 17:54     ` Mark Pearson
2026-11-06 18:03       ` Heikki Krogerus

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