From 53a42fe2c62f1a21329c737321f59e0ab97ac655 Mon Sep 17 00:00:00 2001 From: Clive Messer Date: Thu, 2 Apr 2015 12:22:55 +0100 Subject: [PATCH 062/222] 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), }, };