Convert sam_xdmac driver to utilize devicetree. As part of the
controller binding we specify that dmas should contain a channel and the
perid for the DMA transaction.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
This patch introduces the periph to/from memory dma transfer
using the dmamux feature and define new values
for dma cells on client side
Signed-off-by: Francois Ramu <francois.ramu@st.com>
This includes the dma cells as client for the spi
An example of the client part is defined in the dma.yaml
Consequently, bindings for the dmas property becomes then 'not required'
Including dma.yaml is not needed as dma properties
are now part of base.yaml
Signed-off-by: Francois Ramu <francois.ramu@st.com>
Move the atmel,sam0-dmac binding under the dma binding dir and add
cell information for channel and trigger source. Update the associated
dtsi files to match these changes.
This is in prep of ATMEL SAM0 SERCOMM devices like UART, I2C, and SPI to
user proper 'dmas' property to specify the dma info to use.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
dmas and dma-names properties could be used by a wide range
of potential dma client, hence put them in base.yaml, as
optional properties.
Since current stm32-i2s driver implementation only support
dma, set these properties as required.
Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
This patch introduces the periph to/from memory dma transfer
define new values for dma cells on client side
Signed-off-by: Francois Ramu <francois.ramu@st.com>
This checks if the DMA controller supports or not
the memory-to-memory transfers. For DMA Version1,
in the stm32f2xx, stm32f4xx, stm32f7xx series,
only DMA instance 2 is able to transfer mem-to-mem.
For other series, with DMA Version2, there is no such a limitation.
Signed-off-by: Francois Ramu <francois.ramu@st.com>
Add any useful information from 'title:' to the 'description:' strings
(e.g. explanations of acronyms), and remove 'title:' as well as any
copy-pasted "this binding gives a ..." boilerplate.
Also clean some description strings up a bit.
Some other things could probably be cleaned up (replacing 'GPIO node'
with 'GPIO controller' on controllers for consistency, for example), but
I kept things close to the original to avoid accidentally messing up.
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
This commit moves DMA parameters previously hard coded in the driver
to the dts.
Signed-off-by: Song Qiang <songqiang1304521@gmail.com>
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
Add a yaml file for help describing generic dma controllers.
Signed-off-by: Song Qiang <songqiang1304521@gmail.com>
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
