On Fri, Oct 16, 2020 at 02:30:08PM +0100, Richard Fitzgerald wrote:
On 14/10/2020 19:56, Mark Brown wrote:
On Wed, Oct 14, 2020 at 03:54:11PM +0100, Richard Fitzgerald wrote:
This set of patches provides support for using the Cirrus Logic Lochnagar audio development platform plus Cirrus Logic Madera/Arizona codecs with the simple-card machine driver and a Raspberry Pi4. The ultimate aim is to provide the dts file but some updates are needed to the simple-card machine driver.
Why extend simple-card and not the more modern and flexible audio-graph-card?
I'm struggling to understand how to use audio-graph-card where there are multiple alternative codecs. The host I2S endpoint has to point back to the codec endpoint, like this:
cpu_i2s_ep_cs47l15: endpoint { remote-endpoint = <&cs47l15_aif1>; };
But obviously that depends on which codec node was enabled. Listing multiple endpoints makes the whole port node disabled if any remote endpoint is in a disabled node. I've tried adding status="disabled" to endpoints or multiple port definitions with status="disabled" but I haven't figured out a solution.
Multiple endpoints is what you should do. And 'status' goes in the device nodes (not the graph nodes).
Rob