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

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On 14/07/2022 13:32, Andy Shevchenko wrote:
On Thu, Jul 14, 2022 at 10:43:17AM +0200, Luca Ellero wrote:
From: Luca Ellero <l.ellero@xxxxxxx>

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@xxxxxxxxxxxxxxx>

Signed-off-by: Luca Ellero <l.ellero@xxxxxxx>
---
  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



Hi Andy,
thank you for your comments.
I will resend v2 of the patches.
Regards
Luca

--
Luca Ellero

E-mail: luca.ellero@xxxxxxxxxxxxxxxx
Internet: www.brickedbrain.com




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