diff options
| author | Andrea Merello <andrea.merello@gmail.com> | 2018-11-20 16:31:49 +0100 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2019-01-07 09:53:12 +0530 |
| commit | 05f7ea7f6ef611a077fcbb983fb8d6a99e91e1f6 (patch) | |
| tree | d2e03103101f54b9161f01d839953dfcad229048 /Documentation/kernel-hacking | |
| parent | ae809690b46a71dc56cda5b3b8884c8c41a0df15 (diff) | |
dmaengine: xilinx_dma: autodetect whether the HW supports scatter-gather
The AXIDMA and CDMA HW can be either direct-access or scatter-gather
version. These are SW incompatible.
The driver can handle both versions: a DT property was used to
tell the driver whether to assume the HW is in scatter-gather mode.
This patch makes the driver to autodetect this information. The DT
property is not required anymore.
No changes for VDMA.
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: devicetree@vger.kernel.org
Cc: Radhey Shyam Pandey <radhey.shyam.pandey@xilinx.com>
Signed-off-by: Andrea Merello <andrea.merello@gmail.com>
Reviewed-by: Radhey Shyam Pandey <radhey.shyam.pandey@xilinx.com>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'Documentation/kernel-hacking')
0 files changed, 0 insertions, 0 deletions