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Message-Id: <20220721083458.6412-2-luca.ellero@brickedbrain.com>
Date: Thu, 21 Jul 2022 10:34:56 +0200
From: Luca Ellero <luca.ellero@...ckedbrain.com>
To: dmitry.torokhov@...il.com, daniel@...que.org,
m.felsch@...gutronix.de, andriy.shevchenko@...ux.intel.com,
u.kleine-koenig@...gutronix.de, mkl@...gutronix.de,
miquel.raynal@...tlin.com, imre.deak@...ia.com
Cc: linux-input@...r.kernel.org, linux-kernel@...r.kernel.org,
Luca Ellero <l.ellero@...m.it>
Subject: [PATCH v2 1/3] ads7846: don't report pressure for ads7845
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".
Signed-off-by: Luca Ellero <l.ellero@...m.it>
---
Changes for v2:
- add missing period in commit message
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
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