Hello people, i'm trying to interface the Wolfson wm8782 ADC with my BB
Black.
My first approach was modify the file davinci-evm.c, so the kernel will
load the wm8782 driver instead of the tdax998 (used for hdmi).
The first problem that i'm facing is that i dont know exactly where apply
these changes, so far i see two options:
here:
case MACHINE_VERSION_3:
evm_dai.name = "NXP TDA HDMI Chip";
evm_dai.stream_name = "HDMI";
evm_dai.codec_dai_name = "wm8782-hifi";
evm_dai.init = evm_tda998x_init;
or here:
static struct snd_soc_dai_link da830_evm_dai = {
.name = "wm8782",
.stream_name = "Capture",
.cpu_dai_name = "davinci-mcasp.0",
.codec_dai_name = "wm8782-hifi",
.codec_name = "wm8782-codec.0-0018",
.platform_name = "davinci-mcasp.0",
.init = evm_aic3x_init,
.ops = &evm_ops,
I think that the code in the first option only gets executed when the dtbo
file "cape-boneblack-hdmi" is loaded (is this correct?),
but neither of these options seems to work...
The only "solution" that i came up with was replacing the code of the
tda998x.c with the code of wm8782.c driver, but i don't
think this is the right way...
The files that i think would do the trick are: *davinci-evm.c*, *wm8782.c*and
*board-am3517evm.c* but, obvioulsy, i'm not sure of this...
I'm also trying to document all these steps so anyone can interface an
adc/dac to the BBB.
Any help will be appreciated,
Thanks in advance!
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