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Nicolas Ferre 0ee51b6117 tty/serial: at91: RS485 mode: 0 is valid for delay_rts_after_send 
[ Upstream commit 8687634b79 ]

In RS485 mode, we may want to set the delay_rts_after_send value to 0.
In the datasheet, the 0 value is said to "disable" the Transmitter Timeguard but
this is exactly the expected behavior if we want no delay...

Moreover, if the value was set to non-zero value by device-tree or earlier
ioctl command, it was impossible to change it back to zero.

Reported-by: Sami Pietikäinen <Sami.Pietikainen@wapice.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Cc: stable@vger.kernel.org  # 3.2+
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
History 2015-07-12 10:54:24 -04:00
..
accessibility printk: move braille console support into separate braille.[ch] files 2013-07-31 14:41:03 -07:00
acpi ACPI / PM: Add missing pm_generic_complete() invocation 2015-07-03 23:02:26 -04:00
amba PM / Domains: Move dev_pm_domain_attach|detach() to pm_domain.h 2014-09-30 01:16:44 +02:00
ata ata: ahci_mvebu: Fix wrongly set base address for the MBus window setting 2015-07-03 12:34:46 -04:00
atm solos-pci: fix error return code 2014-11-23 14:29:44 -05:00
auxdisplay framebuffer: Use fb_<level> 2013-10-29 12:53:07 +02:00
base regmap: Fix possible shift overflow in regmap_field_init() 2015-07-03 23:02:31 -04:00
bcma bcma: add another PCI ID of device with BCM43228 2014-10-23 14:02:06 -04:00
block rbd: use GFP_NOIO in rbd_obj_request_create() 2015-07-05 10:12:55 -04:00
bluetooth Bluetooth: ath3k: Add support of 04ca:300d AR3012 device 2015-07-03 23:02:34 -04:00
bus bus: arm-ccn: Fix node->XP config conversion 2015-07-03 23:02:13 -04:00
cdrom block,scsi: fixup blk_get_request dead queue scenarios 2014-08-28 10:03:46 -06:00
char agp/intel: Fix typo in needs_ilk_vtd_wa() 2015-07-05 10:12:53 -04:00
clk clk: at91: fix h32mx prototype inclusion in pmc header 2015-07-01 15:37:14 -04:00
clocksource clocksource: exynos_mct: Avoid blocking calls in the cpu hotplug notifier 2015-07-05 10:12:52 -04:00
connector connector: Use ktime_get_ns() 2014-07-23 10:18:07 -07:00
cpufreq intel_pstate: set BYT MSR with wrmsrl_on_cpu() 2015-07-03 23:02:15 -04:00
cpuidle cpuidle: remove state_count field from struct cpuidle_device 2015-04-24 17:13:56 -04:00
crypto Revert "crypto: talitos - convert to use be16_add_cpu()" 2015-07-03 23:02:16 -04:00
dca dca: convert to idr_alloc() 2013-02-27 19:10:15 -08:00
devfreq PM / devfreq: exynos: Enable building exynos PPMU as module 2014-09-29 20:22:36 +09:00
dio m68k: don't export static inline functions 2009-12-06 11:18:28 +01:00
dma dmaengine: mv_xor: bug fix for racing condition in descriptors cleanup 2015-07-03 23:02:28 -04:00
dma-buf reservation: Remove shadowing local variable 'ret' 2015-03-23 21:02:50 -04:00
edac x86, mce, severity: Extend the the mce_severity mechanism to handle UCNA/DEFERRED error 2015-06-09 13:43:45 -04:00
eisa Revert "EISA: Initialize device before its resources" 2014-01-17 14:57:29 -07:00
extcon extcon: gpio: Fix code cleanup 2014-09-22 16:48:47 +09:00
firewire firewire: cdev: prevent kernel stack leaking into ioctl arguments 2014-11-14 12:10:13 +01:00
firmware firmware: dmi_scan: Fix ordering of product_uuid 2015-06-10 13:42:36 -04:00
fmc Merge 3.14-rc5 into char-misc-next 2014-03-02 19:53:09 -08:00
gpio gpio: crystalcove: set IRQCHIP_SKIP_SET_WAKE for the irqchip 2015-07-03 23:02:23 -04:00
gpu drm/radeon: SDMA fix hibernation (CI GPU family). 2015-07-05 10:12:54 -04:00
hid HID: sony: Add support for the third-party SMK PS3 Bluetooth Remote 2015-06-28 21:23:48 -04:00
hsi HSI changes for the v3.17 series 2014-08-06 20:06:14 -07:00
hv Drivers: hv: vmbus: Don't wait after requesting offers 2015-05-17 19:12:43 -04:00
hwmon hwmon: (mcp3021) Fix broken output scaling 2015-07-05 10:12:56 -04:00
hwspinlock hwspinlock: enable OMAP build for AM33xx, AM43xx & DRA7xx 2014-07-29 11:46:28 +03:00
i2c i2c: at91: fix a race condition when using the DMA controller 2015-07-03 23:02:28 -04:00
ide Merge branch 'for-3.18/drivers' of git://git.kernel.dk/linux-block 2014-10-18 12:12:45 -07:00
idle intel_idle: Broadwell support 2014-08-15 17:06:40 -04:00
iio iio: adis16400: Compute the scan mask from channel indices 2015-07-03 12:34:33 -04:00
infiniband iser-target: release stale iser connections 2015-07-03 12:34:50 -04:00
input Input: pixcir_i2c_ts - fix receive error 2015-07-03 23:02:32 -04:00
iommu iommu/vt-d: Allow RMRR on graphics devices too 2015-06-28 13:39:19 -04:00
ipack ipoctal: clear break interrupt as soon as it occurs 2014-09-23 23:26:42 -07:00
irqchip irqchip: sunxi-nmi: Fix off-by-one error in irq iterator 2015-07-03 12:34:47 -04:00
isdn isdn/gigaset: fix usb_gigaset write_cmd result race 2014-10-14 15:05:35 -04:00
leds leds / PM: fix hibernation on arm when gpio-led used with CPU led trigger 2015-07-03 23:02:15 -04:00
lguest x86: Clean up cr4 manipulation 2015-06-28 13:39:27 -04:00
macintosh powerpc: Move via-cuda symbol exports next to function definitions 2014-09-25 23:14:37 +10:00
mailbox Merge branch 'mailbox-for-linus' of git://git.linaro.org/landing-teams/working/fujitsu/integration 2014-10-21 11:21:19 -07:00
mcb mcb: Add support for shared PCI IRQs 2014-05-27 17:38:11 -07:00
md dm stats: fix divide by zero if 'number_of_areas' arg is zero 2015-07-03 23:02:33 -04:00
media [media] media: Fix regression in some more dib0700 based devices 2015-07-03 23:02:17 -04:00
memory AT91 reset, poweroff and ram drivers 2014-08-25 15:35:26 +02:00
memstick memstick: mspro_block: add missing curly braces 2015-05-17 19:12:28 -04:00
message SCSI for-linus on 20141007 2014-10-07 21:29:18 -04:00
mfd mfd: kempld-core: Fix callback return value check 2015-04-16 20:13:19 -04:00
misc mei: me: wait for power gating exit confirmation 2015-07-03 23:02:29 -04:00
mmc mmc: sdhci-pxav3: do the mbus window configuration after enabling clocks 2015-07-05 10:13:00 -04:00
mtd mtd: fix: avoid race condition when accessing mtd->usecount 2015-07-03 23:02:14 -04:00
net bnx2x: fix lockdep splat 2015-07-05 10:13:00 -04:00
nfc NFC: st21nfcb: remove st21nfcb_nci_i2c_disable 2015-07-03 23:02:25 -04:00
ntb ntb: Adding split BAR support for Haswell platforms 2014-10-17 07:08:51 -04:00
nubus kernel/printk: use symbolic defines for console loglevels 2014-06-04 16:54:17 -07:00
of of/address: use atomic allocation in pci_register_io_range() 2015-07-05 10:12:48 -04:00
oprofile drivers/oprofile: Replace __get_cpu_var uses for address calculation 2014-08-26 13:45:46 -04:00
parisc Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2014-10-13 16:23:15 +02:00
parport parport: parport_pc: Implement architecture and device check to cut off false-positives 2014-09-23 23:14:28 -07:00
pci PCI: pciehp: Wait for hotplug command completion where necessary 2015-07-03 23:02:25 -04:00
pcmcia Disable write buffering on Toshiba ToPIC95 2015-07-03 23:02:29 -04:00
phy phy: Find the right match in devm_phy_destroy() 2015-04-16 20:11:41 -04:00
pinctrl pinctrl: mvebu: armada-38x: fix incorrect total number of GPIOs 2015-07-03 23:02:27 -04:00
platform ideapad: fix software rfkill setting 2015-07-03 23:02:30 -04:00
pnp PNP: replace strnicmp with strncasecmp 2014-10-14 02:18:25 +02:00
power power/reset: at91: fix return value check in at91_reset_platform_probe() 2015-06-10 13:42:45 -04:00
powercap powercap / RAPL: change domain detection message 2014-09-03 01:29:00 +02:00
pps drivers/pps/clients/pps-gpio.c: remove redundant of_match_ptr 2013-11-13 12:09:35 +09:00
ps3 ps3-vuart: don't use PREPARE_WORK 2014-03-07 10:24:48 -05:00
ptp PCI: Remove DEFINE_PCI_DEVICE_TABLE macro use 2014-08-12 12:15:14 -06:00
pwm pwm: Changes for v3.18-rc1 2014-10-21 08:17:43 -07:00
rapidio PCI: Remove DEFINE_PCI_DEVICE_TABLE macro use 2014-08-12 12:15:14 -06:00
ras trace, RAS: Add eMCA trace event interface 2014-06-25 13:26:47 -07:00
regulator regulator: core: fix constraints output buffer 2015-07-03 23:02:25 -04:00
remoteproc remoteproc: da8xx: don't select CMA on no-MMU 2014-06-17 17:09:36 +02:00
reset reset: sunxi: fix spinlock initialization 2015-01-27 08:29:41 -08:00
rpmsg A small pull request consisting of: 2013-05-07 14:02:00 -07:00
rtc drivers/rtc/rtc-s3c.c: add .needs_src_clk to s3c6410 RTC data 2015-03-28 09:59:44 -04:00
s390 crypto: prefix module autoloading with "crypto-" 2015-01-29 17:40:46 -08:00
sbus Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc 2014-08-05 18:57:18 -07:00
scsi ipr: Increase default adapter init stage change timeout 2015-07-03 23:02:23 -04:00
sfi SFI / ACPI: Fix warnings reported during builds with W=1 2013-12-07 01:24:33 +01:00
sh drivers: sh: Leave disabling of unused PM domains to genpd 2014-09-09 00:46:13 +02:00
sn Drivers: misc: remove __dev* attributes. 2013-01-03 15:57:16 -08:00
soc soc: versatile: Add terminating entry for realview_soc_of_match 2014-10-28 22:05:07 +01:00
spi spi: orion: Fix maximum baud rates for Armada 370/XP 2015-07-03 23:02:19 -04:00
spmi spmi: Remove duplicate inclusion of module.h 2014-07-10 15:22:13 -07:00
ssb SSB: fix Kconfig dependencies 2015-05-17 19:12:34 -04:00
staging staging: vt6655: device_rx_srv check sk_buff is NULL 2015-07-03 23:02:22 -04:00
target target/pscsi: Don't leak scsi_host if hba is VIRTUAL_HOST 2015-06-10 13:42:15 -04:00
tc TC: Handle device_register() errors. 2014-06-26 10:48:23 +01:00
thermal thermal: armada: Update Armada 380 thermal sensor coefficients 2015-06-10 13:42:37 -04:00
thunderbolt thunderbolt: Clear hops before overwriting 2014-08-26 14:54:48 -07:00
tty tty/serial: at91: RS485 mode: 0 is valid for delay_rts_after_send 2015-07-12 10:54:24 -04:00
uio uio: Export definition of struct uio_device 2014-10-02 21:35:54 -07:00
usb usb: core: Fix USB 3.0 devices lost in NOTATTACHED state after a hub port reset 2015-07-03 23:02:22 -04:00
uwb uwb: add an ASIE sysfs attribute to uwb_rc devices 2014-09-23 22:05:26 -07:00
vfio vfio-pci: Fix the check on pci device type in vfio_pci_probe() 2015-01-27 08:29:40 -08:00
vhost vhost-scsi: Add missing virtio-scsi -> TCM attribute conversion 2015-01-27 08:29:45 -08:00
video video/fbdev: fix defio's fsync 2015-01-27 08:29:39 -08:00
virt drivers: clean-up prom.h implicit includes 2013-10-09 20:04:04 -05:00
virtio virtio-balloon: do not call blocking ops when !TASK_RUNNING 2015-04-16 20:11:27 -04:00
vlynq drivers/vlynq/vlynq.c: fix another resource size off by 1 error 2014-01-23 16:36:55 -08:00
vme vme: bridges: use pci_zalloc_consistent 2014-08-08 15:57:30 -07:00
w1 w1_therm reference count family data 2015-07-03 23:02:19 -04:00
watchdog watchdog: s3c2410_wdt: Fix the mask bit offset for Exynos7 2014-12-05 20:21:35 +01:00
xen xen/events: don't bind non-percpu VIRQs with percpu chip 2015-06-09 13:43:54 -04:00
zorro zorro: Use ARRAY_SIZE 2014-07-11 10:38:02 +02:00
Kconfig soc: ti: add Keystone Navigator QMSS driver 2014-09-24 09:49:14 -04:00
Makefile Driver core patches for 3.17-rc1 2014-08-04 18:34:04 -07:00