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linux/drivers/macintosh
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Finn Thain 30170db328 via-cuda: Use spinlock_irq_save/restore instead of enable/disable_irq 
commit ac39452e94 upstream.

The cuda_start() function uses spinlock_irq_save/restore for mutual
exclusion. Let's have cuda_poll() do the same when polling the VIA
interrupt.

The benefit to disabling local irqs when the interrupt is being polled
is that the interrupt handler now has the same timing properties
regardless of whether it is invoked normally or from cuda_poll().

This driver was written back when local irqs remained enabled during
execution of interrupt handlers and cuda_poll() was probably trying
to achieve the same effect by use of enable/disable_irq.

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>
[bwh: Backported to 3.16: adjust context]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
History 2018-10-03 04:10:07 +01:00
..
ams macintosh/ams: Replace strict_strtoul() with kstrtoul() 2013-08-14 14:57:43 +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 macintosh/adb: Change platform power management to use dev_pm_ops 2014-03-07 15:54:48 +11:00
adbhid.c Fix common misspellings 2011-03-31 11:26:23 -03:00
ans-lcd.c llseek: automatically add .llseek fop 2010-10-15 15:53:27 +02:00
ans-lcd.h [POWERPC] Copy over headers from arch/ppc to arch/powerpc that we need 2007-08-22 22:43:29 -05:00
apm_emu.c [POWERPC] apm_emu: Use generic apm-emulation 2007-05-02 16:42:19 +10:00
Kconfig m68k/mac: Mark Mac IIsi ADB driver BROKEN 2013-12-08 11:01:47 +01:00
mac_hid.c macintosh: Convert use of typedef ctl_table to struct ctl_table 2013-07-01 11:10:35 +10:00
macio-adb.c Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
macio_asic.c drivers: clean-up prom.h implicit includes 2013-10-09 20:04:04 -05:00
macio_sysfs.c of/device: Replace struct of_device with struct platform_device 2010-08-06 09:25:50 -06:00
Makefile powerpc/windfarm: Fix XServe G5 fan control Makefile issue 2013-11-27 11:35:47 +11:00
mediabay.c Drivers: macintosh: remove __dev* attributes. 2013-01-03 15:57:14 -08:00
nvram.c drivers: fix up various ->llseek() implementations 2011-07-20 20:47:58 -04:00
rack-meter.c drivers: clean-up prom.h implicit includes 2013-10-09 20:04:04 -05:00
smu.c powerpc/macintosh/smu.c: Fix closing brace followed by if 2014-06-24 12:43:15 +10:00
therm_adt746x.c powerpc/pmac: Convert therm_adt746x to new i2c probing 2012-04-30 15:37:18 +10:00
therm_pm72.c Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
therm_pm72.h powerpc: Fix G5 thermal shutdown 2010-03-09 11:55:27 +11:00
therm_windtunnel.c macintosh/therm_windtunnel: Export I2C module alias information 2017-10-12 15:28:18 +01:00
via-cuda.c via-cuda: Use spinlock_irq_save/restore instead of enable/disable_irq 2018-10-03 04:10:07 +01:00
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: add backlight type 2011-03-22 17:43:59 -07:00
via-pmu-event.c Input: via-pmu - add input device support 2006-06-26 01:49:55 -04:00
via-pmu-event.h Input: via-pmu - add input device support 2006-06-26 01:49:55 -04:00
via-pmu-led.c powerpc/via-pmu-led.c: Add of_node_put to avoid memory leak 2010-09-02 14:07:33 +10:00
via-pmu.c drivers: clean-up prom.h implicit includes 2013-10-09 20:04:04 -05:00
via-pmu68k.c Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
windfarm.h powerpc/powermac: New windfarm driver for PowerMac G5 (AGP) and Xserve G5 2012-04-30 15:37:25 +10:00
windfarm_ad7417_sensor.c Drivers: macintosh: remove __dev* attributes. 2013-01-03 15:57:14 -08:00
windfarm_core.c windfarm: decrement client count when unregistering 2015-09-30 13:20:39 +01:00
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 [PATCH] windfarm license fix 2006-03-06 18:40:45 -08:00
windfarm_pid.h [PATCH] powerpc: Thermal control for dual core G5s 2006-02-07 22:05:14 -08:00
windfarm_pm72.c powerpc/windfarm: Use for_each_node_by_type() macro 2013-01-10 17:00:36 +11:00
windfarm_pm81.c powerpc/windfarm: Fix overtemperature clearing 2013-07-01 11:10:34 +10:00
windfarm_pm91.c powerpc/windfarm: Fix overtemperature clearing 2013-07-01 11:10:34 +10:00
windfarm_pm112.c powerpc/windfarm: Use for_each_node_by_type() macro 2013-01-10 17:00:36 +11:00
windfarm_pm121.c macintosh/windfarm_pm121.c: Fix for possible null pointer dereference 2014-05-20 10:56:00 +10:00
windfarm_rm31.c powerpc/windfarm: Fix noisy slots-fan on Xserve (rm31) 2013-08-01 13:11:47 +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