linux-stable.git/drivers/input/touchscreen, branch v4.14.232

Input: raydium_ts_i2c - do not send zero length

2021-03-03T17:22:51+00:00

commit fafd320ae51b9c72d371585b2501f86640ea7b7d upstream.

Add default write command package to prevent i2c quirk error of zero
data length as Raydium touch firmware update is executed.

Signed-off-by: jeffrey.lin 
Link: https://lore.kernel.org/r/1608031217-7247-1-git-send-email-jeffrey.lin@raydium.corp-partner.google.com
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov 
Signed-off-by: Greg Kroah-Hartman

Input: elo - fix an error code in elo_connect()

2021-03-03T17:22:48+00:00

[ Upstream commit 0958351e93fa0ac142f6dd8bd844441594f30a57 ]

If elo_setup_10() fails then this should return an error code instead
of success.

Fixes: fae3006e4b42 ("Input: elo - add support for non-pressure-sensitive touchscreens")
Signed-off-by: Dan Carpenter 
Link: https://lore.kernel.org/r/YBKFd5CvDu+jVmfW@mwanda
Signed-off-by: Dmitry Torokhov 
Signed-off-by: Sasha Levin

Input: goodix - add upside-down quirk for Teclast X98 Pro tablet

2020-12-29T12:47:04+00:00

[ Upstream commit cffdd6d90482316e18d686060a4397902ea04bd2 ]

The touchscreen on the Teclast x98 Pro is also mounted upside-down in
relation to the display orientation.

Signed-off-by: Simon Beginn 
Signed-off-by: Bastien Nocera 
Link: https://lore.kernel.org/r/20201117004253.27A5A27EFD@localhost
Signed-off-by: Dmitry Torokhov 
Signed-off-by: Sasha Levin

Input: ads7846 - fix unaligned access on 7845

2020-12-29T12:46:54+00:00

[ Upstream commit 03e2c9c782f721b661a0e42b1b58f394b5298544 ]

req->sample[1] is not naturally aligned at word boundary, and therefore we
should use get_unaligned_be16() when accessing it.

Fixes: 3eac5c7e44f3 ("Input: ads7846 - extend the driver for ads7845 controller support")
Signed-off-by: Dmitry Torokhov 
Signed-off-by: Sasha Levin

Input: ads7846 - fix integer overflow on Rt calculation

2020-12-29T12:46:54+00:00

[ Upstream commit 820830ec918f6c3dcd77a54a1c6198ab57407916 ]

In some rare cases the 32 bit Rt value will overflow if z2 and x is max,
z1 is minimal value and x_plate_ohms is relatively high (for example 800
ohm). This would happen on some screen age with low pressure.

There are two possible fixes:
- make Rt 64bit
- reorder calculation to avoid overflow

The second variant seems to be preferable, since 64 bit calculation on
32 bit system is a bit more expensive.

Fixes: ffa458c1bd9b6f653008d450f337602f3d52a646 ("spi: ads7846 driver")
Co-developed-by: David Jander 
Signed-off-by: David Jander 
Signed-off-by: Oleksij Rempel 
Link: https://lore.kernel.org/r/20201113112240.1360-1-o.rempel@pengutronix.de
Signed-off-by: Dmitry Torokhov 
Signed-off-by: Sasha Levin

Input: ads7846 - fix race that causes missing releases

2020-12-29T12:46:54+00:00

[ Upstream commit e52cd628a03f72a547dbf90ccb703ee64800504a ]

If touchscreen is released while busy reading HWMON device, the release
can be missed. The IRQ thread is not started because no touch is active
and BTN_TOUCH release event is never sent.

Fixes: f5a28a7d4858f94a ("Input: ads7846 - avoid pen up/down when reading hwmon")
Co-developed-by: Oleksij Rempel 
Signed-off-by: David Jander 
Signed-off-by: Oleksij Rempel 
Link: https://lore.kernel.org/r/20201027105416.18773-1-o.rempel@pengutronix.de
Signed-off-by: Dmitry Torokhov 
Signed-off-by: Sasha Levin

Input: stmfts - fix a & vs && typo

2020-10-29T08:07:12+00:00

[ Upstream commit d04afe14b23651e7a8bc89727a759e982a8458e4 ]

In stmfts_sysfs_hover_enable_write(), we should check value and
sdata->hover_enabled is all true.

Fixes: 78bcac7b2ae1 ("Input: add support for the STMicroelectronics FingerTip touchscreen")
Signed-off-by: YueHaibing 
Link: https://lore.kernel.org/r/20200916141941.16684-1-yuehaibing@huawei.com
Signed-off-by: Dmitry Torokhov 
Signed-off-by: Sasha Levin

Input: imx6ul_tsc - clean up some errors in imx6ul_tsc_resume()

2020-10-29T08:07:12+00:00

[ Upstream commit 30df23c5ecdfb8da5b0bc17ceef67eff9e1b0957 ]

If imx6ul_tsc_init() fails then we need to clean up the clocks.

I reversed the "if (input_dev->users) {" condition to make the code a
bit simpler.

Fixes: 6cc527b05847 ("Input: imx6ul_tsc - propagate the errors")
Signed-off-by: Dan Carpenter 
Link: https://lore.kernel.org/r/20200905124942.GC183976@mwanda
Signed-off-by: Dmitry Torokhov 
Signed-off-by: Sasha Levin

Input: usbtouchscreen - add support for BonXeon TP

2020-06-03T06:17:55+00:00

[ Upstream commit e3b4f94ef52ae1592cbe199bd38dbdc0d58b2217 ]

Based on available information this uses the singletouch irtouch
protocol. This is tested and confirmed to be fully functional on
the BonXeon TP hardware I have.

Signed-off-by: James Hilliard 
Link: https://lore.kernel.org/r/20200413184217.55700-1-james.hilliard1@gmail.com
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov 
Signed-off-by: Sasha Levin

Input: raydium_i2c_ts - fix error codes in raydium_i2c_boot_trigger()

2020-04-02T14:34:33+00:00

[ Upstream commit 32cf3a610c35cb21e3157f4bbf29d89960e30a36 ]

These functions are supposed to return negative error codes but instead
it returns true on failure and false on success.  The error codes are
eventually propagated back to user space.

Fixes: 48a2b783483b ("Input: add Raydium I2C touchscreen driver")
Signed-off-by: Dan Carpenter 
Link: https://lore.kernel.org/r/20200303101306.4potflz7na2nn3od@kili.mountain
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov 
Signed-off-by: Sasha Levin