linux-toradex.git/drivers/tty/serial/bfin_uart.c, branch v3.4.99

serial: bfin-uart: Don't access tty circular buffer in TX DMA interrupt after it is reset.

2012-03-13T21:33:39+00:00

When kernel reboot, tty circular buffer is reset before last TX DMA interrupt is called,
while the buffer tail is updated in TX DMA interrupt handler. So, don't update the buffer
tail if it is reset.

Signed-off-by: Sonic Zhang 
Signed-off-by: Greg Kroah-Hartman

serial: bfin-uart: Remove ASYNC_CTS_FLOW flag for hardware automatic CTS.

2011-12-13T17:50:15+00:00

Blackfin uart supports automatic CTS trigger when hardware flow control is enabled.
No need to start and top tx in CTS interrupt. So, remote ASYNC_CTS_FLOW flag.

Signed-off-by: Sonic Zhang 
Signed-off-by: Greg Kroah-Hartman

serial: bfin-uart: Enable hardware automatic CTS only when CTS pin is available.

2011-12-13T17:50:15+00:00

Signed-off-by: Sonic Zhang 
Signed-off-by: Greg Kroah-Hartman

serial: bfin-uart: remove redundant CTS check for hardware CTS control.

2011-12-10T03:05:32+00:00

Blackfin hardware CTS control generate interrupt for both CTS on and off.

Signed-off-by: Sonic Zhang 
Acked-by: Alan Cox 
Signed-off-by: Greg Kroah-Hartman

serial: bfin-uart: Add tty ASYNC_CTS_FLOW flag to do CTS flow control.

2011-12-10T03:05:32+00:00

Signed-off-by: Sonic Zhang 
Acked-by: Alan Cox 
Signed-off-by: Greg Kroah-Hartman

serial: bfin-uart: Request CTS GPIO PIN when the serial device starts up.

2011-12-10T03:05:32+00:00

Serial device may be probed earlier before GPIOLIB is initialized. Requesting and
configuring CTS GPIO PIN fails in that early stage. Do it when the serial device
really starts up.

Signed-off-by: Sonic Zhang 
Acked-by: Alan Cox 
Signed-off-by: Greg Kroah-Hartman

TTY: irq: Remove IRQF_DISABLED

2011-09-22T23:08:57+00:00

Since commit [e58aa3d2: genirq: Run irq handlers with interrupts disabled],
We run all interrupt handlers with interrupts disabled
and we even check and yell when an interrupt handler
returns with interrupts enabled (see commit [b738a50a:
genirq: Warn when handler enables interrupts]).

So now this flag is a NOOP and can be removed.

Signed-off-by: Yong Zhang 
Acked-by: Tobias Klauser 
Signed-off-by: Greg Kroah-Hartman

serial:bfin_uart: Put TX IRQ in individual platform resource.

2011-08-23T17:48:31+00:00

Serial TX IRQ is not RX IRQ plus 1 in some blackfin chips.
Give individual platform resources to both TX and RX irqs.

Signed-off-by: Sonic Zhang 
Signed-off-by: Greg Kroah-Hartman

serial:blackfin: rename Blackfin serial driver to bfin_uart.c

2011-08-23T17:47:05+00:00

bfin_5xx.c is not a general name for all Blackfin chips.

Signed-off-by: Sonic Zhang 
Acked-by: Alan Cox 
Signed-off-by: Greg Kroah-Hartman