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Tony Lindgren cd2d6d33e2 net: davinci_emac: Fix hangs with interrupts 
On davinci_emac, we have pulse interrupts. This means that we need to
clear the EOI bits when disabling interrupts as otherwise the interrupts
keep happening. And we also need to not clear the EOI bits again when
enabling the interrupts as otherwise we will get tons of:

unexpected IRQ trap at vector 00

These errors almost certainly mean that the omap-intc.c is signaling
a spurious interrupt with the reserved irq 127 as we've seen earlier
on omap3.

Let's fix the issue by clearing the EOI bits when disabling the
interrupts. Let's also keep the comment for "Rx Threshold and Misc
interrupts are not enabled" for both enable and disable so people
are aware of this when potentially adding more support.

Note that eventually we should handle the RX and TX interrupts
separately like cpsw is now doing. However, so far I have not seen
any issues with this based on my testing, so it seems to behave a
little different compared to the cpsw that had a similar issue.

Cc: Brian Hutchinson <b.hutchman@gmail.com>
Reviewed-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 		2015-01-16 01:00:03 -05:00
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accessibility
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acpi Merge branch 'for-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux 2015-01-14 07:53:51 +13:00
amba Char/Misc driver patches for 3.19-rc1 2014-12-14 16:43:47 -08:00
android
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ata More ACPI and power management updates for 3.19-rc1 2014-12-18 20:28:33 -08:00
atm Driver core patches for 3.19-rc1 2014-12-14 16:10:09 -08:00
auxdisplay
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base Merge branches 'pm-domains', 'powercap' and 'pm-tools' 2014-12-29 21:24:00 +01:00
bcma
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block NVMe: Fix locking on abort handling 2015-01-08 09:02:23 -07:00
bluetooth Merge branch 'for-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next 2014-12-15 13:23:09 -05:00
bus Driver core patches for 3.19-rc1 2014-12-14 16:10:09 -08:00
cdrom
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char ipmi: Fix compile warning with tv_usec 2014-12-30 13:34:36 -06:00
clk Please consider pulling the clk framework changes toward 3.19. It is 2014-12-20 16:42:36 -08:00
clocksource Fixes for 3.19 2014-12-30 15:27:20 +01:00
connector
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coresight
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cpufreq Merge branches 'pm-cpufreq' and 'pm-cpuidle' 2014-12-29 21:23:41 +01:00
cpuidle Merge branches 'pm-cpufreq' and 'pm-cpuidle' 2014-12-29 21:23:41 +01:00
crypto Driver core patches for 3.19-rc1 2014-12-14 16:10:09 -08:00
dca
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devfreq
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dio
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dma Driver core patches for 3.19-rc1 2014-12-14 16:10:09 -08:00
dma-buf
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edac Driver core patches for 3.19-rc1 2014-12-14 16:10:09 -08:00
eisa
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extcon Char/Misc driver patches for 3.19-rc1 2014-12-14 16:43:47 -08:00
firewire
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firmware Driver core patches for 3.19-rc1 2014-12-14 16:10:09 -08:00
fmc
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gpio gpio: dln2: use bus_sync_unlock instead of scheduling work 2015-01-09 07:57:35 +01:00
gpu Merge tag 'amdkfd-fixes-2015-01-06' of git://people.freedesktop.org/~gabbayo/linux into drm-fixes 2015-01-08 10:36:37 +10:00
hid HID: roccat: potential out of bounds in pyra_sysfs_write_settings() 2015-01-09 14:41:01 +01:00
hsi * misc. fixes in omap-ssi and nokia-modem drivers 2014-12-15 17:33:47 -08:00
hv Char/Misc driver patches for 3.19-rc1 2014-12-14 16:43:47 -08:00
hwmon Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux 2014-12-17 10:16:27 -08:00
hwspinlock
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i2c Merge branch 'i2c/for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux 2014-12-20 13:52:52 -08:00
ide Driver core patches for 3.19-rc1 2014-12-14 16:10:09 -08:00
idle
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iio Staging patches for 3.19-rc1 2014-12-15 18:06:13 -08:00
infiniband net/mlx4: Don't disable vxlan offloads under DMFS-A0 optimized steering 2015-01-15 19:35:30 -05:00
input Revert "Input: atmel_mxt_ts - use deep sleep mode when stopped" 2014-12-31 12:59:34 -08:00
iommu iommu/rockchip: Drop owner assignment from platform_drivers 2015-01-05 12:40:06 +01:00
ipack
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irqchip Merge branch 'irq-irqdomain-arm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2014-12-15 17:30:09 -08:00
isdn isdn: fix NUL (\0 or \x00) specification in string 2015-01-12 15:31:35 -05:00
leds leds: netxbig: fix oops at probe time 2015-01-13 13:49:01 -08:00
lguest
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macintosh macintosh: therm_pm72: delete deprecated driver 2014-12-19 19:32:47 +01:00
mailbox Driver core patches for 3.19-rc1 2014-12-14 16:10:09 -08:00
mcb
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md dm: fix missed error code if .end_io isn't implemented by target_type 2014-12-17 12:31:13 -05:00
media More ACPI and power management updates for 3.19-rc1 2014-12-18 20:28:33 -08:00
memory MTD updates for 3.19: 2014-12-17 09:59:26 -08:00
memstick
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message
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mfd Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2014-12-30 16:59:59 -08:00
misc powerpc updates for 3.19 batch 2 2014-12-19 12:57:45 -08:00
mmc mmc: sdhci-pci: Add support for Intel SPT 2015-01-12 10:14:58 +01:00
mtd MTD updates for 3.19: 2014-12-17 09:59:26 -08:00
net net: davinci_emac: Fix hangs with interrupts 2015-01-16 01:00:03 -05:00
nfc More ACPI and power management updates for 3.19-rc1 2014-12-18 20:28:33 -08:00
ntb
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nubus
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of ARM: SoC/iommu configuration for 3.19 2014-12-16 14:53:01 -08:00
oprofile
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parisc
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parport Char/Misc driver patches for 3.19-rc1 2014-12-14 16:43:47 -08:00
pci Merge branch 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2014-12-19 14:02:02 -08:00
pcmcia Char/Misc driver patches for 3.19-rc1 2014-12-14 16:43:47 -08:00
phy More ACPI and power management updates for 3.19-rc1 2014-12-18 20:28:33 -08:00
pinctrl pinctrl: st: Add irq_disable hook to st_gpio_irqchip 2015-01-07 10:44:39 +01:00
platform platform-drivers-x86 for 3.19 2014-12-18 20:24:55 -08:00
pnp
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power More ACPI and power management updates for 3.19-rc1 2014-12-18 20:28:33 -08:00
powercap powercap / RAPL: add IDs for future Xeon CPUs 2014-12-17 02:35:42 +01:00
pps
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ps3
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ptp
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pwm pwm: Changes for v3.19-rc1 2014-12-17 10:10:51 -08:00
rapidio
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ras
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regulator regulator: Fix for v3.19 2014-12-29 13:24:38 -08:00
remoteproc Driver core patches for 3.19-rc1 2014-12-14 16:10:09 -08:00
reset Driver core patches for 3.19-rc1 2014-12-14 16:10:09 -08:00
rpmsg
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rtc Driver core patches for 3.19-rc1 2014-12-14 16:10:09 -08:00
s390 s390/zcrypt: kernel oops at insmod of the z90crypt device driver 2014-12-18 09:55:55 +01:00
sbus
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scsi qla2xxx: fix busy wait regression 2015-01-05 18:15:08 +01:00
sfi
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sh
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sn
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soc Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux 2014-12-15 15:52:01 -08:00
spi Merge remote-tracking branches 'spi/fix/img-spfi' and 'spi/fix/msiof' into spi-linus 2014-12-24 12:57:54 +00:00
spmi
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ssb
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staging [regression] braino in "lustre: use is_root_inode()" 2014-12-26 22:43:19 -05:00
target iscsi-target: Fix typos in enum cmd_flags_table 2015-01-09 15:25:58 -08:00
tc
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thermal int340x_thermal/processor_thermal_device: return failure when 2015-01-06 08:18:21 +08:00
thunderbolt
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tty tty: 8250_omap: Replace CONFIG_PM_RUNTIME with CONFIG_PM 2014-12-19 15:27:58 +01:00
uio Char/Misc driver patches for 3.19-rc1 2014-12-14 16:43:47 -08:00
usb SCSI for-linus on 20141220 2014-12-20 13:42:57 -08:00
uwb
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vfio vfio-pci: Fix the check on pci device type in vfio_pci_probe() 2015-01-07 10:29:11 -07:00
vhost Merge git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending 2015-01-13 15:23:26 +13:00
video OMAPDSS: SDI: fix output port_num 2014-12-30 11:18:30 +02:00
virt
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virtio virtio_pci: document why we defer kfree 2015-01-06 16:35:36 +02:00
vlynq
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vme
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w1 Char/Misc driver patches for 3.19-rc1 2014-12-14 16:43:47 -08:00
watchdog watchdog: imx2_wdt: Fix the argument of watchdog_active() 2014-12-18 16:01:20 +01:00
xen Merge remote-tracking branch 'scsi-queue/drivers-for-3.19' into for-linus 2014-12-18 05:56:29 -08:00
zorro
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Kconfig Staging patches for 3.19-rc1 2014-12-15 18:06:13 -08:00
Makefile drivers: Move iommu/ before gpu/ in Makefile 2014-12-22 11:47:37 +02:00