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fd7a65a27c
linux/drivers/macintosh
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Finn Thain fd7a65a27c via-cuda: Add TREQ, TIP and TACK signal helpers 
Introduce some helpers for handling the signalling between VIA and
Cuda. This abstraction will be used to add support for Egret devices,
which utilize slightly different signalling.

Don't invert the sense of the Cuda's active-low signals when storing
them in the 'status' variable. Just assert, negate and test those
signals using the helpers.

The state machine does not need to test its own output signals to
figure out what to do next: the next state depends on the Cuda's TREQ
output. Just call the TREQ_asserted() helper function to test for that.

Similarly, there is no need to store pin directions in the 'status'
variable. That was only useful for debugging messages.

Tested-by: Stan Johnson <userm57@yahoo.com>
Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-02-07 16:56:18 +11:00
..
ams drivers/macintosh: Delete owner assignment 2016-08-22 11:09:33 +10:00
adb-iop.c drivers/macintosh/adb-iop.c: flags should be unsigned long 2010-11-12 07:55:30 -08:00
adb.c powerpc: Move adb symbol exports next to function definitions 2014-09-25 23:14:37 +10:00
adbhid.c Fix common misspellings 2011-03-31 11:26:23 -03:00
ans-lcd.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
ans-lcd.h
apm_emu.c
Kconfig macintosh: Remove dependency on IDE_GD_ATA if ADB_PMU_LED_DISK is selected 2016-11-14 11:11:51 +11:00
mac_hid.c macintosh: Convert use of typedef ctl_table to struct ctl_table 2013-07-01 11:10:35 +10:00
macio_asic.c powerpc: Remove all usages of NO_IRQ 2016-09-20 20:57:12 +10:00
macio_sysfs.c of/device: Replace struct of_device with struct platform_device 2010-08-06 09:25:50 -06:00
macio-adb.c Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
Makefile macintosh: therm_pm72: delete deprecated driver 2014-12-19 19:32:47 +01:00
mediabay.c Drivers: macintosh: remove __dev* attributes. 2013-01-03 15:57:14 -08:00
rack-meter.c powerpc: Remove all usages of NO_IRQ 2016-09-20 20:57:12 +10:00
smu.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
therm_adt746x.c powerpc/pmac: Convert therm_adt746x to new i2c probing 2012-04-30 15:37:18 +10:00
therm_windtunnel.c macintosh/therm_windtunnel: Export OF module alias information 2015-08-20 16:15:20 +10:00
via-cuda.c via-cuda: Add TREQ, TIP and TACK signal helpers 2017-02-07 16:56:18 +11:00
via-macii.c Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
via-maciisi.c m68k/irq: Remove obsolete IRQ_FLG_* users 2011-11-08 22:35:48 +01:00
via-pmu-backlight.c backlight: Remove trivial get_brightness implementations 2014-06-23 13:24:22 +01:00
via-pmu-event.c
via-pmu-event.h
via-pmu-led.c powerpc: use the new LED disk activity trigger 2016-06-27 08:58:40 +02:00
via-pmu.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
via-pmu68k.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
windfarm_ad7417_sensor.c Drivers: macintosh: remove __dev* attributes. 2013-01-03 15:57:14 -08:00
windfarm_core.c windfarm: remove three exported but unused functions 2015-08-06 15:10:21 +10:00
windfarm_cpufreq_clamp.c powerpc/powermac: New windfarm driver for PowerMac G5 (AGP) and Xserve G5 2012-04-30 15:37:25 +10:00
windfarm_fcu_controls.c Drivers: macintosh: remove __dev* attributes. 2013-01-03 15:57:14 -08:00
windfarm_lm75_sensor.c powerpc/windfarm: Remove superfluous name casts 2013-12-05 16:06:22 +11:00
windfarm_lm87_sensor.c powerpc/windfarm: Add lm87 sensor 2012-04-30 15:37:21 +10:00
windfarm_max6690_sensor.c powerpc/windfarm: Remove superfluous name casts 2013-12-05 16:06:22 +11:00
windfarm_mpu.h powerpc/powermac: New windfarm driver for PowerMac G5 (AGP) and Xserve G5 2012-04-30 15:37:25 +10:00
windfarm_pid.c
windfarm_pid.h
windfarm_pm72.c drivers/macintosh: Delete owner assignment 2016-08-22 11:09:33 +10:00
windfarm_pm81.c macintosh: drop owner assignment from platform_drivers 2014-10-20 16:20:43 +02:00
windfarm_pm91.c macintosh: drop owner assignment from platform_drivers 2014-10-20 16:20:43 +02:00
windfarm_pm112.c drivers/macintosh: Delete owner assignment 2016-08-22 11:09:33 +10:00
windfarm_pm121.c macintosh/windfarm_pm121.c: Fix for possible null pointer dereference 2014-05-20 10:56:00 +10:00
windfarm_rm31.c drivers/macintosh: Delete owner assignment 2016-08-22 11:09:33 +10:00
windfarm_smu_controls.c powerpc/windfarm: Remove spurrious sysfs_attr_init() 2012-04-30 15:37:20 +10:00
windfarm_smu_sat.c macintosh/windfarm: Remove obsolete cleanup for clientdata 2013-07-01 11:46:56 +10:00
windfarm_smu_sensors.c Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
windfarm.h windfarm: remove three exported but unused functions 2015-08-06 15:10:21 +10:00