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ASoC: tegra: add device tree support for TrimSlice 

This binding doesn't include the nvidia,model or nvidia,audio-routing
properties the other Tegra audio DT bindings have, because this binding
is targetted at a single machine, rather than for any machine using the
tlv320aic23 codec.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Stephen Warren 2012-04-27 13:34:19 -06:00 committed by Mark Brown
parent 3a96c77ef7
commit 6264f668d5
2 changed files with 48 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
Documentation/devicetree/bindings/sound/tegra-audio-trimslice.txt Normal file
View File

@ -0,0 +1,14 @@
NVIDIA Tegra audio complex for TrimSlice
Required properties:
- compatible : "nvidia,tegra-audio-trimslice"
- nvidia,i2s-controller : The phandle of the Tegra I2S1 controller
- nvidia,audio-codec : The phandle of the WM8903 audio codec
Example:
sound {
compatible = "nvidia,tegra-audio-trimslice";
nvidia,i2s-controller = <&tegra_i2s1>;
nvidia,audio-codec = <&codec>;
};

34
sound/soc/tegra/trimslice.c
View File

@ -27,6 +27,7 @@
#include <asm/mach-types.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
@ -149,6 +150,32 @@ static __devinit int tegra_snd_trimslice_probe(struct platform_device *pdev)
goto err;
}
if (pdev->dev.of_node) {
trimslice_tlv320aic23_dai.codec_name = NULL;
trimslice_tlv320aic23_dai.codec_of_node = of_parse_phandle(
pdev->dev.of_node, "nvidia,audio-codec", 0);
if (!trimslice_tlv320aic23_dai.codec_of_node) {
dev_err(&pdev->dev,
"Property 'nvidia,audio-codec' missing or invalid\n");
ret = -EINVAL;
goto err;
}
trimslice_tlv320aic23_dai.cpu_dai_name = NULL;
trimslice_tlv320aic23_dai.cpu_dai_of_node = of_parse_phandle(
pdev->dev.of_node, "nvidia,i2s-controller", 0);
if (!trimslice_tlv320aic23_dai.cpu_dai_of_node) {
dev_err(&pdev->dev,
"Property 'nvidia,i2s-controller' missing or invalid\n");
ret = -EINVAL;
goto err;
}
trimslice_tlv320aic23_dai.platform_name = NULL;
trimslice_tlv320aic23_dai.platform_of_node =
trimslice_tlv320aic23_dai.cpu_dai_of_node;
}
ret = tegra_asoc_utils_init(&trimslice->util_data, &pdev->dev);
if (ret)
goto err;
@ -184,10 +211,17 @@ static int __devexit tegra_snd_trimslice_remove(struct platform_device *pdev)
return 0;
}
static const struct of_device_id trimslice_of_match[] __devinitconst = {
{ .compatible = "nvidia,tegra-audio-trimslice", },
{},
};
MODULE_DEVICE_TABLE(of, trimslice_of_match);
static struct platform_driver tegra_snd_trimslice_driver = {
.driver = {
.name = DRV_NAME,
.owner = THIS_MODULE,
.of_match_table = trimslice_of_match,
},
.probe = tegra_snd_trimslice_probe,
.remove = __devexit_p(tegra_snd_trimslice_remove),