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Jiada Wang d64b8607ac Revert "serial: imx: always wake up the processes in the TX callback" 
This reverts commit 2ad28e3efe.

Instead of always wake up write_wait process in TX callback,
TX callback should call imx_dma_tx() again, and let imx_dma_tx
transfer the remaining data in circle buffer.

The issue with commit 2ad28e3 is, in case there is remaining
data in circle buffer, but no process is waiting on write_wait
queue, then as no following uart_write() will be called after
uart_write_wakeup(), thus cause data loss.

Moreover according to Documentation/serial/driver, uart_write_wakeup()
should be called in case the transmit buffer have dropped below
a threshold.

Signed-off-by: Jiada Wang <jiada_wang@mentor.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-01-09 14:23:07 -08:00
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2014-12-19 12:56:15 -08:00
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extcon
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firewire
firewire: sbp2: replace card lock by target lock
2014-12-10 20:53:21 +01:00
firmware
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gpio
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gpu
Revert "drm/gem: Warn on illegal use of the dumb buffer interface v2"
2014-12-24 13:13:22 +10:00
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idle
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lguest
virtio: allow finalize_features to fail
2014-12-09 16:32:32 +02:00
macintosh
macintosh: therm_pm72: delete deprecated driver
2014-12-19 19:32:47 +01:00
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2014-12-17 12:31:13 -05:00
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drivers: sh / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
2014-12-05 03:08:24 +01:00
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Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux
2014-12-15 15:52:01 -08:00
spi
spi: Replace CONFIG_PM_RUNTIME with CONFIG_PM
2014-12-19 15:25:31 +01:00
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ssb
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[regression] braino in "lustre: use is_root_inode()"
2014-12-26 22:43:19 -05:00
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tty
Revert "serial: imx: always wake up the processes in the TX callback"
2015-01-09 14:23:07 -08:00
uio
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watchdog
watchdog: imx2_wdt: Fix the argument of watchdog_active()
2014-12-18 16:01:20 +01:00
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