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>

1 files changed, 34 insertions, 0 deletions

diff --git a/sound/soc/tegra/trimslice.c b/sound/soc/tegra/trimslice.c
index 0fd115e69a8..4a8d5b672c9 100644
--- a/sound/soc/tegra/trimslice.c
+++ b/sound/soc/tegra/trimslice.c
@@ -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),