linux_dsm_epyc7002/drivers/macintosh
Finn Thain e7884eed13 macintosh/adb-iop: Send correct poll command
[ Upstream commit 10199e90ee20e68859f8128331ec8d85b036d349 ]

The behaviour of the IOP firmware is not well documented but we do know
that IOP message reply data can be used to issue new ADB commands.
Use the message reply to better control autopoll behaviour by sending
a Talk Register 0 command after every ADB response, not unlike the
algorithm in the via-macii driver. This poll command is addressed to
that device which last received a Talk command (explicit or otherwise).

Cc: Joshua Thompson <funaho@jurai.org>
Fixes: 32226e8170 ("macintosh/adb-iop: Implement idle -> sending state transition")
Tested-by: Stan Johnson <userm57@yahoo.com>
Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Link: https://lore.kernel.org/r/58bba4310da4c29b068345a4b36af8a531397ff7.1605847196.git.fthain@telegraphics.com.au
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-12-30 11:53:39 +01:00
..
ams
adb-iop.c macintosh/adb-iop: Send correct poll command 2020-12-30 11:53:39 +01:00
adb.c
adbhid.c
ans-lcd.c
ans-lcd.h
apm_emu.c
Kconfig
mac_hid.c
macio_asic.c
macio_sysfs.c
macio-adb.c
Makefile
mediabay.c
rack-meter.c
smu.c powerpc updates for 5.10 2020-10-16 12:21:15 -07:00
therm_adt746x.c
therm_windtunnel.c
via-cuda.c
via-macii.c
via-pmu-backlight.c
via-pmu-event.c
via-pmu-event.h
via-pmu-led.c
via-pmu.c
windfarm_ad7417_sensor.c
windfarm_core.c
windfarm_cpufreq_clamp.c
windfarm_fcu_controls.c
windfarm_lm75_sensor.c macintosh: windfarm: remove detatch debug containing spelling mistakes 2020-09-02 11:00:17 +10:00
windfarm_lm87_sensor.c macintosh: windfarm: remove detatch debug containing spelling mistakes 2020-09-02 11:00:17 +10:00
windfarm_max6690_sensor.c
windfarm_mpu.h
windfarm_pid.c
windfarm_pid.h
windfarm_pm72.c
windfarm_pm81.c
windfarm_pm91.c
windfarm_pm112.c
windfarm_pm121.c
windfarm_rm31.c
windfarm_smu_controls.c
windfarm_smu_sat.c macintosh: windfarm: use for_each_child_of_node() macro 2020-09-15 22:13:39 +10:00
windfarm_smu_sensors.c macintosh: smu_sensors: use for_each_child_of_node() macro 2020-09-18 19:59:44 +10:00
windfarm.h