linux-kernel - Re: input: elantech - force needed quirks on Fujitsu H760

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Message-ID: <20161004002800.GA27823@dtor-ws>
Date:   Mon, 3 Oct 2016 17:28:00 -0700
From:   Dmitry Torokhov <dmitry.torokhov@...il.com>
To:     Matti Kurkela <Matti.Kurkela@....fi>
Cc:     linux-input@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: input: elantech - force needed quirks on Fujitsu H760

On Mon, Oct 03, 2016 at 09:18:28PM +0300, Matti Kurkela wrote:
> 
> Just like Fujitsu CELSIUS H730, the H760 also has an Elantech
> touchpad with the same quirks. Without this patch, the touchpad is
> useless out-of-the-box as the mouse pointer won't move.
> 
> This patch makes the driver aware of both the crc_enabled=1
> requirement and the middle button, making the touchpad fully
> functional out-of-the-box.
> 
> Signed-off-by: Matti Kurkela <Matti.Kurkela@....fi>
> ---
> This patch will also apply without changes to older kernel versions:
> I made this originally on 4.4.19 and am currently using it on
> my work laptop with 4.4.22.
> 
> Backporting to any version that includes commit
> f386474e12a560e005ec7899e78f51f6bdc3cf41 should be trivial.

Applied and marked for stable, thank you.

> 
> --- linux-4.8/drivers/input/mouse/elantech.c.orig	2016-10-03 02:24:33.000000000 +0300
> +++ linux-4.8/drivers/input/mouse/elantech.c	2016-10-03 20:19:17.175141070 +0300
> @@ -1159,6 +1159,13 @@ static const struct dmi_system_id elante
>  			DMI_MATCH(DMI_PRODUCT_NAME, "CELSIUS H730"),
>  		},
>  	},
> +	{
> +		/* Fujitsu H760 also has a middle button */
> +		.matches = {
> +			DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
> +			DMI_MATCH(DMI_PRODUCT_NAME, "CELSIUS H760"),
> +		},
> +	},
>  #endif
>  	{ }
>  };
> @@ -1503,6 +1510,13 @@ static const struct dmi_system_id elante
>  		},
>  	},
>  	{
> +		/* Fujitsu H760 does not work with crc_enabled == 0 */
> +		.matches = {
> +			DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
> +			DMI_MATCH(DMI_PRODUCT_NAME, "CELSIUS H760"),
> +		},
> +	},
> +	{
>  		/* Fujitsu LIFEBOOK E554  does not work with crc_enabled == 0 */
>  		.matches = {
>  			DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
> 

-- 
Dmitry