tree 976cffca5c682bcec045ab9f52456854474930a3
parent c19f12b5ef3adf3c139eabbe3d3d0201838b77b1
author Russell King <rmk+kernel@arm.linux.org.uk> 1293037985 +0000
committer Russell King <rmk+kernel@arm.linux.org.uk> 1294246725 +0000

ARM: PL011: Separate hardware FIFO size from TTY FIFO size

With DMA support, we need to tell the TTY subsystem that the DMA buffer
is the size of the FIFO, otherwise things like tty_wait_until_sent()
will time out too early.  Keep (and use) the hardware value separately
from the port->fifosize.

This was part of a larger patch from Linus Walleij, with a little
modification.

Acked-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>