linux-kernel - Re: [PATCH] Input: i8042: add Lenovo ThinkPad L460 to i8042 reset list

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Message-ID: <20180308233348.GA198135@dtor-ws>
Date:   Thu, 8 Mar 2018 15:33:48 -0800
From:   Dmitry Torokhov <dmitry.torokhov@...il.com>
To:     Dennis Wassenberg <dennis.wassenberg@...unet.com>
Cc:     Arvind Yadav <arvind.yadav.cs@...il.com>,
        Marcos Paulo de Souza <marcos.souza.org@...il.com>,
        Daniel Drake <drake@...lessm.com>,
        Kai-Heng Feng <kai.heng.feng@...onical.com>,
        linux-input@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] Input: i8042: add Lenovo ThinkPad L460 to i8042 reset
 list

On Thu, Mar 08, 2018 at 05:35:14PM +0100, Dennis Wassenberg wrote:
> Reset i8042 before probing because of insufficient
> BIOS initialisation of the i8042 serial controller.
> This makes synaptics touchpad detection possible.
> Without resetting the synaptics touchpad is not detected
> because there are always NACK messages from AUX port.
> 
> Signed-off-by: Dennis Wassenberg <dennis.wassenberg@...unet.com>

Applied, thank you.

> ---
>  drivers/input/serio/i8042-x86ia64io.h | 7 +++++++
>  1 file changed, 7 insertions(+)
> 
> diff --git a/drivers/input/serio/i8042-x86ia64io.h b/drivers/input/serio/i8042-x86ia64io.h
> index 6cbbdc6..7755134 100644
> --- a/drivers/input/serio/i8042-x86ia64io.h
> +++ b/drivers/input/serio/i8042-x86ia64io.h
> @@ -627,6 +627,13 @@ static inline void i8042_write_command(int val)
>  			DMI_MATCH(DMI_PRODUCT_NAME, "P65xRP"),
>  		},
>  	},
> +	{
> +		/* Lenovo ThinkPad L460 */
> +		.matches = {
> +			DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
> +			DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad L460"),
> +		},
> +	},
>  	{ }
>  };
>  
> -- 
> 1.9.1
> 
> 

-- 
Dmitry