On Mon, Mar 30, 2015 at 08:16:23PM -0700, Scott Branden wrote:Okay.
+SSP Subnode properties:
+- dai-name: The name of the DAI registered with ASOC
Why is this in the DT - it sounds like this is just an internalWill move into the driver code.
implementation detail for Linux, not a property of the hardware.
I was using the device tree to set some board specific properties of our audio serial port driver. The idea was that these properties would only need to be one value for a specific board. Therefore, we could set them in the device tree and then not have to set them in the+- mode: Controls if this port should be configured as I2S or TDM mode.
+ Valid values are: "tdm" or "i2s"
+- tdm-bits-per-frame: only if mode is "tdm" then this property must set.
+ Valid values are (128/256/512)
We'd normally leave these up to the machine driver to set as they're
link wide things for system integration. The bits per frame in
particular looks like something that's not going to be fixed by the
hardware and could be varied at runtime.
Okay. Will replace with "status"+- port-status: Controls if port is enabled or not
+ Valid values "enabled" or "disabled"
This sounds like it's replicating the DT standard status property?
It is a configuration where we can link together two or three of the ports to allow for synchronized starts and stop. I will look into another method of configuring this operational mode.+- channel-group: Control grouping of serial port
+ Valid values are "2_0", "3_1", or "5_1"
What does this mean? It looks like it's setting the number of channels
which again seems like a runtime thing.