tree 05c435ba0ee0b071e3c45bcef33eac9f1fd37e80
parent 49d5741be27aa90301b89bf254972b355ed9c8ee
author Jamie Iles <jamie@jamieiles.com> 1291246776 +0000
committer Greg Kroah-Hartman <gregkh@suse.de> 1292023178 -0800

8250: add a UPIO_DWAPB32 for 32 bit accesses

Some platforms contain a Synopsys DesignWare APB UART that is attached
to a 32-bit APB bus where sub-word accesses are not allowed. Add a new
IO type (UPIO_DWAPB32) that performs 32 bit acccesses to the UART.

v2:
	- don't test for 32 bit in the output fast path, provide a
	  separate dwabp32_serial_out() function. Refactor
	  dwabp_serial_out() so that we can reuse the LCR saving
	  code.
v3:
	- rebased on top of "8250: use container_of() instead of
	  casting"

Signed-off-by: Jamie Iles <jamie@jamieiles.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>