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From db5f1ae7154cf08397ba74b67af282f246a17ddf Mon Sep 17 00:00:00 2001
From: Clive Messer <clive.m.messer@gmail.com>
Date: Thu, 2 Apr 2015 12:22:55 +0100
Subject: [PATCH 062/121] Add Device Tree support for RPi-DAC.
---
sound/soc/bcm/rpi-dac.c | 21 +++++++++++++++++++++
sound/soc/codecs/pcm1794a.c | 7 +++++++
2 files changed, 28 insertions(+)
--- a/sound/soc/bcm/rpi-dac.c
+++ b/sound/soc/bcm/rpi-dac.c
@@ -69,6 +69,20 @@ static int snd_rpi_rpi_dac_probe(struct
int ret = 0;
snd_rpi_rpi_dac.dev = &pdev->dev;
+
+ if (pdev->dev.of_node) {
+ struct device_node *i2s_node;
+ struct snd_soc_dai_link *dai = &snd_rpi_rpi_dac_dai[0];
+ i2s_node = of_parse_phandle(pdev->dev.of_node, "i2s-controller", 0);
+
+ if (i2s_node) {
+ dai->cpu_dai_name = NULL;
+ dai->cpu_of_node = i2s_node;
+ dai->platform_name = NULL;
+ dai->platform_of_node = i2s_node;
+ }
+ }
+
ret = snd_soc_register_card(&snd_rpi_rpi_dac);
if (ret)
dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n", ret);
@@ -81,10 +95,17 @@ static int snd_rpi_rpi_dac_remove(struct
return snd_soc_unregister_card(&snd_rpi_rpi_dac);
}
+static const struct of_device_id snd_rpi_rpi_dac_of_match[] = {
+ { .compatible = "rpi,rpi-dac", },
+ {},
+};
+MODULE_DEVICE_TABLE(of, snd_rpi_rpi_dac_of_match);
+
static struct platform_driver snd_rpi_rpi_dac_driver = {
.driver = {
.name = "snd-rpi-dac",
.owner = THIS_MODULE,
+ .of_match_table = snd_rpi_rpi_dac_of_match,
},
.probe = snd_rpi_rpi_dac_probe,
.remove = snd_rpi_rpi_dac_remove,
--- a/sound/soc/codecs/pcm1794a.c
+++ b/sound/soc/codecs/pcm1794a.c
@@ -46,12 +46,19 @@ static int pcm1794a_remove(struct platfo
return 0;
}
+static const struct of_device_id pcm1794a_of_match[] = {
+ { .compatible = "ti,pcm1794a", },
+ { }
+};
+MODULE_DEVICE_TABLE(of, pcm1794a_of_match);
+
static struct platform_driver pcm1794a_codec_driver = {
.probe = pcm1794a_probe,
.remove = pcm1794a_remove,
.driver = {
.name = "pcm1794a-codec",
.owner = THIS_MODULE,
+ .of_match_table = of_match_ptr(pcm1794a_of_match),
},
};
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