Hi Martin,

On Tue, Jun 28, 2016 at 12:17 PM, Martin Blumenstingl
[off-list ref] wrote:

Newer Amlogic platforms (Meson 8b and GXBB) use a slightly different
register layout for their Infrared Remoete Controller. The decoder mode
is now configured in another register. Without the changes to the
meson-ir driver we are simply getting incorrect "durations" reported
from the hardware (because the hardware is not in time measurement aka
software decode mode).

This problem was also noticed by some people trying to use this on an
ODROID-C1 and ODROID-C2 - the workaround there (probably because the
datasheets were not publicy available yet at that time) was to switch
to ir_raw_event_store_edge (which leaves it up to the kernel to measure
the duration of a pulse). See [0] and [1] for the corresponding
patches.

I tried this on meson-gxbb-p200 and I'm not seeing any button press
events with evtest or ir-keytable when using the Amlogic remote that
came with the board.  Below is the register dump you requested on IRC:

[    1.068347] Registered IR keymap rc-empty
[    1.072422] input: meson-ir as
/devices/platform/soc/c8100000.aobus/c8100580.ir/rc/rc0/input0
[    1.080814] rc rc0: meson-ir as
/devices/platform/soc/c8100000.aobus/c8100580.ir/rc/rc0
[    1.088839] input: MCE IR Keyboard/Mouse (meson-ir) as
/devices/virtual/input/input1
[    1.096519] rc rc0: lirc_dev: driver ir-lirc-codec (meson-ir)
registered at minor = 0
[    1.104119] meson-ir c8100580.ir: receiver initialized
[    1.109172] IR: reg 0x00 = 0x01d801ac
[    1.112795] IR: reg 0x04 = 0x00f800ca
[    1.116416] IR: reg 0x08 = 0x007a0066
[    1.120037] IR: reg 0x0c = 0x0044002c
[    1.123660] IR: reg 0x10 = 0x70fa0009
[    1.127278] IR: reg 0x14 = 0x00000000
[    1.130907] IR: reg 0x18 = 0x08915c00
[    1.134527] IR: reg 0x1c = 0x00009f44
[    1.138152] IR: reg 0x20 = 0x00000002

Kevin