This is a note to let you know that I've just added the patch titled Input: ads7846 - don't report pressure for ads7845 to the 4.19-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: input-ads7846-don-t-report-pressure-for-ads7845.patch and it can be found in the queue-4.19 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit acd290e6e17780c7d9df996280ef4b0b51bbd229 Author: Luca Ellero <l.ellero@xxxxxxx> Date: Thu Jan 26 11:52:25 2023 +0100 Input: ads7846 - don't report pressure for ads7845 [ Upstream commit d50584d783313c8b05b84d0b07a2142f1bde46dd ] ADS7845 doesn't support pressure. Avoid the following error reported by libinput-list-devices: "ADS7845 Touchscreen: kernel bug: device has min == max on ABS_PRESSURE". Fixes: ffa458c1bd9b ("spi: ads7846 driver") Signed-off-by: Luca Ellero <l.ellero@xxxxxxx> Reviewed-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx> Link: https://lore.kernel.org/r/20230126105227.47648-2-l.ellero@xxxxxxx Signed-off-by: Dmitry Torokhov <dmitry.torokhov@xxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/drivers/input/touchscreen/ads7846.c b/drivers/input/touchscreen/ads7846.c index b536768234b7c..491cc7efecf9e 100644 --- a/drivers/input/touchscreen/ads7846.c +++ b/drivers/input/touchscreen/ads7846.c @@ -1374,8 +1374,9 @@ 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); ads7846_setup_spi_msg(ts, pdata);