On Fri, Aug 28, 2009 at 8:42 PM, Mark Brownbroonie@opensource.wolfsonmicro.com wrote:
On Thu, 2009-08-20 at 10:37 +0800, Barry Song wrote:
On Wed, Aug 19, 2009 at 7:34 PM, Mark Brownbroonie@opensource.wolfsonmicro.com wrote:
Yup, that DSP mode with I2S like channel layout (does it also do TDM in I2S mode by any chance?). Could you submit a version of your patch which uses the default TDM layout - an API to rewrite things is likely to be a separate API?
I don't know what is your exact meaning. Do you mean I send a patch whose tdm slot is not changed, then send a patch which change the tdm slot?
Send a patch that allows selection of the active slots without rewriting
Sorry. I am not sure about your meaning yet. The problem is the slot order, the match between slot number and channel number, not only which slot is active, and which is not active.
Although thinking about it I'm not sure if the driver is actually implementing TDM or not - does the CPU actually get configured to stop driving the data line during an inactive slot (so something else can drive it) or is it simply sending zeros on those slots?
It's the later. The hardware signal is still active but no valid data in inactive slot.