linux-kernel - Re: [PATCH 1/3] ads7846: don't report pressure for ads7845

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Message-ID: <Ys/+37mzoi++8MDW@smile.fi.intel.com>
Date:   Thu, 14 Jul 2022 14:32:47 +0300
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     Luca Ellero <luca.ellero@...ckedbrain.com>
Cc:     dmitry.torokhov@...il.com, daniel@...que.org,
        m.felsch@...gutronix.de, u.kleine-koenig@...gutronix.de,
        mkl@...gutronix.de, miquel.raynal@...tlin.com, imre.deak@...ia.com,
        linux-input@...r.kernel.org, linux-kernel@...r.kernel.org,
        Luca Ellero <l.ellero@...m.it>
Subject: Re: [PATCH 1/3] ads7846: don't report pressure for ads7845

On Thu, Jul 14, 2022 at 10:43:17AM +0200, Luca Ellero wrote:
> From: Luca Ellero <l.ellero@...m.it>
> 
> ADS7845 doesn't support pressure.
> This patch avoids the following error reported by libinput-list-devices:
> "ADS7845 Touchscreen: kernel bug: device has min == max on ABS_PRESSURE"

Missed period, otherwise looks good.

Reviewed-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>

> Signed-off-by: Luca Ellero <l.ellero@...m.it>
> ---
>  drivers/input/touchscreen/ads7846.c | 5 +++--
>  1 file changed, 3 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/input/touchscreen/ads7846.c b/drivers/input/touchscreen/ads7846.c
> index bed68a68f330..24605c40d039 100644
> --- a/drivers/input/touchscreen/ads7846.c
> +++ b/drivers/input/touchscreen/ads7846.c
> @@ -1316,8 +1316,9 @@ static int ads7846_probe(struct spi_device *spi)
>  			pdata->y_min ? : 0,
>  			pdata->y_max ? : MAX_12BIT,
>  			0, 0);
> -	input_set_abs_params(input_dev, ABS_PRESSURE,
> -			pdata->pressure_min, pdata->pressure_max, 0, 0);
> +	if (ts->model != 7845)
> +		input_set_abs_params(input_dev, ABS_PRESSURE,
> +				pdata->pressure_min, pdata->pressure_max, 0, 0);
>  
>  	/*
>  	 * Parse common framework properties. Must be done here to ensure the
> -- 
> 2.25.1
> 

-- 
With Best Regards,
Andy Shevchenko