linux-toradex.git/drivers/tty/serial/pch_uart.c, branch v4.4.73

pch_uart: don't hardcode PCI slot to get DMA device

2014-08-01T23:04:21+00:00

The DMA is a function 0 of the multifunction device where SPI host is attached.
Thus, we may avoid to hardcode PCI slot number.

Signed-off-by: Andy Shevchenko 
Signed-off-by: Greg Kroah-Hartman

serial: pch_uart: Update error message for dmaengine_prep_slave_sg() API

2014-07-12T00:49:46+00:00

Commit 16052827d98fbc13c31ebad560af4bd53e2b4dd5 ("dmaengine/dma_slave:
introduce inline wrappers") changed the code to use the new API, but forgot
to update an error message.

Signed-off-by: Geert Uytterhoeven 
Cc: Jiri Kosina 
Cc: linux-serial@vger.kernel.org
--
v2:
  - New
Signed-off-by: Greg Kroah-Hartman

serial_core: Commonalize crlf when working w/ a non open console port

2014-04-24T23:13:01+00:00

In (efe2f29 kgdboc,kdb: Allow kdb to work on a non open console port)
support was added to directly use the "write_char" functions when
doing kdb over a non-open console port.  This is great, but it ends up
bypassing the normal code in uart_console_write() that adds a carriage
return before any newlines.

There appears to have been a trend to add this support directly in
some console driver's poll_put_char() functions.  This had a few side
effects, including:
- In this case we were doing LFCR, not CRLF.  This was fixed in
  uart_console_write() back in (d358788 [SERIAL] kernel console should
  send CRLF not LFCR)
- Not all serial drivers had the LFCR code in their poll_put_char()
  functions.  In my case I was running serial/samsung.c which lacked
  it.

I've moved the handling to uart_poll_put_char() to fix the above
problems.  Now when I use kdb (and don't point console= to the same
UART) I no longer get:

[0]kdb>
       [0]kdb>
              [0]kdb>

Signed-off-by: Doug Anderson 
Reviewed-by: Alan Cox 
Signed-off-by: Greg Kroah-Hartman

pch_uart: Add uart device to irq name

2014-04-24T22:52:30+00:00

This will additionally show the specific UART device instead of the
general module name. This cames in handy so check for the interupts of
a specific device if there are several of them.

Signed-off-by: Alexander Stein 
Signed-off-by: Greg Kroah-Hartman

serial: pch_uart: Fix build warning when CONFIG_DEBUG_FS=n

2014-02-13T17:17:31+00:00

Add CONFIG_DEBUG_FS to 'char name' in order to fix the following
build warning, because 'char name' is used only when CONFIG_DEBUG_FS
is enabled.

drivers/tty/serial/pch_uart.c:1765:7: warning: unused variable 'name' [-Wunused-variable]

Signed-off-by: Jingoo Han 
Signed-off-by: Greg Kroah-Hartman

Merge branch 'fixes' into tty-next

2014-01-22T21:42:19+00:00

This was a "forgotten" branch of tty fixes that somehow didn't make it
into my "main" branches, my fault.

Signed-off-by: Greg Kroah-Hartman

tty: serial: pch: don't crash if DMA enabled but not loaded

2013-12-09T01:16:05+00:00

if the DMA driver isn't loaded "on time" then we crash in the irq handler:
| pch_uart 0000:02:0a.4: pch_request_dma:dma_request_channel FAILS(Tx)
| BUG: unable to handle kernel NULL pointer dereference at   (null)
| IP: [] pch_uart_interrupt+0x739/0x940

Signed-off-by: Sebastian Andrzej Siewior 
Signed-off-by: Greg Kroah-Hartman

tty: remove DEFINE_PCI_DEVICE_TABLE macro

2013-12-09T01:09:07+00:00

Don't use DEFINE_PCI_DEVICE_TABLE macro, because this macro
is not preferred.

Signed-off-by: Jingoo Han 
Signed-off-by: Greg Kroah-Hartman

serial: pch_uart: remove unnecessary pci_set_drvdata()

2013-12-09T01:04:40+00:00

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han 
Signed-off-by: Greg Kroah-Hartman

serial: pch_uart: remove reference to .set_wake()

2013-10-16T20:16:19+00:00

This callback is gone and not coming back, so will not be
supported later.

Cc: Johan Hovold 
Acked-by: Darren Hart 
Signed-off-by: Linus Walleij 
Signed-off-by: Greg Kroah-Hartman