diff options
| author | Miquel Raynal <miquel.raynal@bootlin.com> | 2022-04-22 20:06:11 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-04-26 13:25:47 +0200 |
| commit | e4fb03fe10c5e7a5d9aef7cefe815253274fb9ee (patch) | |
| tree | 84fdb9844dd6f5a942190ca254d4ce143dc8ba96 /net/lapb/lapb_in.c | |
| parent | 593dea000bc1f160623f8cf65ad5e47c72f4ec67 (diff) | |
serial: 8250: dma: Allow driver operations before starting DMA transfers
One situation where this could be used is when configuring the UART
controller to be the DMA flow controller. This is a typical case where
the driver might need to program a few more registers before starting a
DMA transfer. Provide the necessary infrastructure to support this
case.
Suggested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/r/20220422180615.9098-6-miquel.raynal@bootlin.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net/lapb/lapb_in.c')
0 files changed, 0 insertions, 0 deletions