kernel/linux.git/drivers/input/touchscreen/mms114.c, branch v5.4.61

Input: mms114 - add extra compatible for mms345l

2020-07-22T07:33:00+00:00

[ Upstream commit 7842087b0196d674ed877d768de8f2a34d7fdc53 ] MMS345L is another first generation touch screen from Melfas, which uses mostly the same registers as MMS152. However, there is some garbage printed during initialization. Apparently MMS345L does not have the MMS152_COMPAT_GROUP register that is read+printed during initialization. TSP FW Rev: bootloader 0x6 / core 0x26 / config 0x26, Compat group: \x06 On earlier kernel versions the compat group was actually printed as an ASCII control character, seems like it gets escaped now. But we probably shouldn't print something from a random register. Add a separate "melfas,mms345l" compatible that avoids reading from the MMS152_COMPAT_GROUP register. This might also help in case there is some other device-specific quirk in the future. Signed-off-by: Stephan Gerhold Reviewed-by: Andi Shyti Link: https://lore.kernel.org/r/20200423102431.2715-1-stephan@gerhold.net Signed-off-by: Dmitry Torokhov Signed-off-by: Sasha Levin

Input: mms114 - fix handling of mms345l

2020-06-17T14:40:21+00:00

[ Upstream commit 3f8f770575d911c989043d8f0fb8dec96360c41c ] 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 Signed-off-by: Sasha Levin

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