linux/drivers/input/rmi4
Hans Verkuil c15f8ba6dc Input: rmi_f54 - read from FIFO in 32 byte blocks
The F54 Report Data is apparently read through a fifo and for
the smbus protocol that means that between reading a block of 32
bytes the rmiaddr shouldn't be incremented. However, changing
that causes other non-fifo reads to fail and so that change was
reverted.

This patch changes just the F54 function and it now reads 32 bytes
at a time from the fifo, using the F54_FIFO_OFFSET to update the
start address that is used when reading from the fifo.

This has only been tested with smbus, not with i2c or spi. But I
suspect that the same is needed there since I think similar
problems will occur there when reading more than 256 bytes.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Tested-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Reported-by: Timo Kaufmann <timokau@zoho.com>
Link: https://lore.kernel.org/r/20200115124819.3191024-3-hverkuil-cisco@xs4all.nl
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2020-01-16 20:22:56 -08:00
..
Kconfig treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
rmi_2d_sensor.c Input: synaptics-rmi4 - remove the exporting of rmi_2d_sensor_set_input_params 2019-07-24 12:58:11 +03:00
rmi_2d_sensor.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
rmi_bus.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
rmi_bus.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
rmi_driver.c Input: synaptics-rmi4 - avoid processing unknown IRQs 2019-10-11 17:24:45 -07:00
rmi_driver.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
rmi_f01.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
rmi_f03.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
rmi_f11.c Input: synaptics-rmi4 - remove unused result_bits mask 2019-11-04 16:11:51 -08:00
rmi_f12.c Input: synaptics-rmi4 - do not consume more data than we have (F11, F12) 2019-11-04 16:11:50 -08:00
rmi_f30.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
rmi_f34.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
rmi_f34.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
rmi_f34v7.c Input: synaptics-rmi4 - re-enable IRQs in f34v7_do_reflash 2019-12-04 17:58:16 -08:00
rmi_f54.c Input: rmi_f54 - read from FIFO in 32 byte blocks 2020-01-16 20:22:56 -08:00
rmi_f55.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
rmi_i2c.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
rmi_smbus.c Revert "Input: synaptics-rmi4 - don't increment rmiaddr for SMBus transfers" 2020-01-16 20:22:55 -08:00
rmi_spi.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00