linux-stable.git/drivers/input/touchscreen/mms114.c, branch v5.7

Input: mms114 - fix handling of mms345l

2020-04-15T04:28:35+00:00

MMS345L is another first generation touch screen from Melfas,
which uses the same registers as MMS152.

However, using I2C_M_NOSTART for it causes errors when reading:

	i2c i2c-0: sendbytes: NAK bailout.
	mms114 0-0048: __mms114_read_reg: i2c transfer failed (-5)

The driver works fine as soon as I2C_M_NOSTART is removed.

Reviewed-by: Andi Shyti 
Signed-off-by: Stephan Gerhold 
Link: https://lore.kernel.org/r/20200405170904.61512-1-stephan@gerhold.net
[dtor: removed separate mms345l handling, made everyone use standard
transfer mode, propagated the 10bit addressing flag to the read part of the
transfer as well.]
Signed-off-by: Dmitry Torokhov

Input: mms114 - use device_get_match_data

2019-11-12T00:25:05+00:00

device_get_match_data is available now, so we can replace the call
to of_device_get_match_data and remove the FIXME comment.

Signed-off-by: Stephan Gerhold 
Reviewed-by: Andi Shyti 
Link: https://lore.kernel.org/r/20191007203343.101466-2-stephan@gerhold.net
Signed-off-by: Dmitry Torokhov

Input: mms114 - add SPDX identifier

2018-02-03T00:04:10+00:00

Replace the original license statement with the SPDX identifier.
Add also one line of description as recommended by the COPYING
file.

Signed-off-by: Andi Shyti 
Signed-off-by: Dmitry Torokhov

Input: mms114 - fix license module information

2018-02-03T00:03:56+00:00

The driver has been released with GNU Public License v2 as stated
in the header, but the module license information has been tagged
as "GPL" (GNU Public License v2 or later).

Fix the module license information so that it matches the one in
the header as "GPL v2".

Fixes: 07b8481d4aff ("Input: add MELFAS mms114 touchscreen driver")
Reported-by: Marcus Folkesson 
Signed-off-by: Andi Shyti 
Signed-off-by: Dmitry Torokhov

Input: mms114 - fix typo in definition

2018-01-31T22:44:40+00:00

It's 'MMS114_INFORMATION', not 'MMS114_INFOMATION'

Signed-off-by: Andi Shyti 
Signed-off-by: Dmitry Torokhov

Input: mms114 - use BIT() macro instead of explicit shifting

2018-01-30T18:08:16+00:00

Signed-off-by: Andi Shyti 
Signed-off-by: Dmitry Torokhov

Input: mms114 - replace mdelay with msleep

2018-01-30T18:08:12+00:00

200 milliseconds is a very long time to keep the CPU busy looping.
Use msleep instead.

Signed-off-by: Andi Shyti 
Signed-off-by: Dmitry Torokhov

Input: mms114 - add support for mms152

2018-01-26T19:27:45+00:00

MMS152 has no configuration registers, but the packet format used in
interrupts is identical to mms114.

Signed-off-by: Simon Shields 
Reviewed-by: Andi Shyti 
Tested-by: Andi Shyti 
Signed-off-by: Dmitry Torokhov

Input: mms114 - drop platform data and use generic APIs

2018-01-26T19:27:23+00:00

The MMS114 platform data has no in-tree users, so drop it.

Switch to using the standard touchscreen properties via
touchscreen_parse_properties(), and move the old DT parsing code
to use device_property_*() APIs.

Finally, use touchscreen_report_pos to report x/y coordinates
and drop the custom x/y inversion code.

Signed-off-by: Simon Shields 
Reviewed-by: Rob Herring 
Reviewed-by: Andi Shyti 
Tested-by: Andi Shyti 
Signed-off-by: Dmitry Torokhov

Input: mms114 - mark as direct input device

2018-01-26T19:27:18+00:00

mms14 is a touchscreen and thus a direct input device; let's mark it
as such. This also allows us to drop some initialization code as
input_init_mt_slots() will do that for us.

Also add error handling for input_mt_init_slots().

Reviewed-by: Simon Shields 
Tested-by: Simon Shields 
Reviewed-by: Andi Shyti 
Tested-by: Andi Shyti 
Signed-off-by: Dmitry Torokhov