diff options
| author | Paul Cercueil <paul@crapouillou.net> | 2021-12-20 19:08:40 +0000 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2021-12-21 13:38:38 +0100 |
| commit | a474e52c3109870946755925ce379d730a6dcaf7 (patch) | |
| tree | 1047433931431f004bfc3c68c37da34002dc2c8a /drivers/iio | |
| parent | 34ce29302323b9bf438a3c16dbd6a95d08c4ab66 (diff) | |
mmc: jz4740: Support using a bi-directional DMA channel
Since the MMC/SD controller in Ingenic SoCs work in half-duplex, it is
possible to use one single DMA channel for both TX and RX operations,
instead of using separate channels.
As some older Ingenic SoCs offer only a handful of DMA channels,
supporting bi-directional channels allow more hardware to use the
channels that would otherwise be used for the MMC/SD operation.
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Link: https://lore.kernel.org/r/20211220190840.108061-3-paul@crapouillou.net
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/iio')
0 files changed, 0 insertions, 0 deletions