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| author | Peter Hurley <peter@hurleysoftware.com> | 2015-11-28 02:29:24 (GMT) |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-12-14 03:59:48 (GMT) |
| commit | 858965d909db32fb567a06916bbebdb8951cd39e (patch) | |
| tree | ddc8d8cdca338d84bd385b301ec4524e4d4908df /drivers/tty/serial | |
| parent | 0ff4230584320b2153752ba54e2e8edbd6addf2c (diff) | |
| download | linux-858965d909db32fb567a06916bbebdb8951cd39e.tar.xz | |
serial: Fix UPIO_MEM comment
The original semantics of UPIO_MEM did not include the notion of bitness
and endianness; different drivers used UPIO_MEM to refer to their original
mmio bitness/endianness. For example, for the 8250 driver this is 8-bit LE
but for the amba-pl011 driver this is 16-bit LE. Since UPIO_* values are
userspace ABI via TIOCGSERIAL/TIOCSSERIAL ioctls, the original meaning of
UPIIO_MEM must remain as it was: the original mmio stride/width/endianness
of the driver.
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Acked-by: Timur Tabi <timur@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/serial')
0 files changed, 0 insertions, 0 deletions