Searched hist:ec5a11a91eecd81ef19b8044a243b4ea56c809e6 (Results 1 – 1 of 1) sorted by relevance
| /openbmc/linux/drivers/tty/serial/8250/ |
| H A D | 8250_dma.c | diff ec5a11a91eecd81ef19b8044a243b4ea56c809e6 Sun Apr 10 00:14:32 CDT 2016 Peter Hurley <peter@hurleysoftware.com> serial: 8250: Validate dmaengine rx chan meets requirements
8250 dma support requires the dmaengine driver support error-free
pause/terminate and better-than-descriptor residue granularity. Query
slave caps to determine if necessary commands/properties are supported;
disable dma if not.
Note this means dmaengine driver must support slave caps reporting
as well.
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|