Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / sound / soc / fsl / phycore-ac97.c

diff --git a/kernel/sound/soc/fsl/phycore-ac97.c b/kernel/sound/soc/fsl/phycore-ac97.c
new file mode 100644 (file)
index 0000000..ae403c2
--- /dev/null
+++ b/kernel/sound/soc/fsl/phycore-ac97.c
@@ -0,0 +1,125 @@
+/*
+ * phycore-ac97.c  --  SoC audio for imx_phycore in AC97 mode
+ *
+ * Copyright 2009 Sascha Hauer, Pengutronix <s.hauer@pengutronix.de>
+ *
+ *  This program is free software; you can redistribute  it and/or modify it
+ *  under  the terms of  the GNU General  Public License as published by the
+ *  Free Software Foundation;  either version 2 of the  License, or (at your
+ *  option) any later version.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/device.h>
+#include <linux/i2c.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/soc.h>
+#include <asm/mach-types.h>
+
+#include "imx-audmux.h"
+
+static struct snd_soc_card imx_phycore;
+
+static struct snd_soc_ops imx_phycore_hifi_ops = {
+};
+
+static struct snd_soc_dai_link imx_phycore_dai_ac97[] = {
+       {
+               .name           = "HiFi",
+               .stream_name    = "HiFi",
+               .codec_dai_name         = "wm9712-hifi",
+               .codec_name     = "wm9712-codec",
+               .cpu_dai_name   = "imx-ssi.0",
+               .platform_name  = "imx-ssi.0",
+               .ops            = &imx_phycore_hifi_ops,
+       },
+};
+
+static struct snd_soc_card imx_phycore = {
+       .name           = "PhyCORE-ac97-audio",
+       .owner          = THIS_MODULE,
+       .dai_link       = imx_phycore_dai_ac97,
+       .num_links      = ARRAY_SIZE(imx_phycore_dai_ac97),
+};
+
+static struct platform_device *imx_phycore_snd_ac97_device;
+static struct platform_device *imx_phycore_snd_device;
+
+static int __init imx_phycore_init(void)
+{
+       int ret;
+
+       if (machine_is_pca100()) {
+               imx_audmux_v1_configure_port(MX27_AUDMUX_HPCR1_SSI0,
+                       IMX_AUDMUX_V1_PCR_SYN | /* 4wire mode */
+                       IMX_AUDMUX_V1_PCR_TFCSEL(3) |
+                       IMX_AUDMUX_V1_PCR_TCLKDIR | /* clock is output */
+                       IMX_AUDMUX_V1_PCR_RXDSEL(3));
+               imx_audmux_v1_configure_port(3,
+                       IMX_AUDMUX_V1_PCR_SYN | /* 4wire mode */
+                       IMX_AUDMUX_V1_PCR_TFCSEL(0) |
+                       IMX_AUDMUX_V1_PCR_TFSDIR |
+                       IMX_AUDMUX_V1_PCR_RXDSEL(0));
+       } else if (machine_is_pcm043()) {
+               imx_audmux_v2_configure_port(3,
+                       IMX_AUDMUX_V2_PTCR_SYN | /* 4wire mode */
+                       IMX_AUDMUX_V2_PTCR_TFSEL(0) |
+                       IMX_AUDMUX_V2_PTCR_TFSDIR,
+                       IMX_AUDMUX_V2_PDCR_RXDSEL(0));
+               imx_audmux_v2_configure_port(0,
+                       IMX_AUDMUX_V2_PTCR_SYN | /* 4wire mode */
+                       IMX_AUDMUX_V2_PTCR_TCSEL(3) |
+                       IMX_AUDMUX_V2_PTCR_TCLKDIR, /* clock is output */
+                       IMX_AUDMUX_V2_PDCR_RXDSEL(3));
+       } else {
+               /* return happy. We might run on a totally different machine */
+               return 0;
+       }
+
+       imx_phycore_snd_ac97_device = platform_device_alloc("soc-audio", -1);
+       if (!imx_phycore_snd_ac97_device)
+               return -ENOMEM;
+
+       platform_set_drvdata(imx_phycore_snd_ac97_device, &imx_phycore);
+       ret = platform_device_add(imx_phycore_snd_ac97_device);
+       if (ret)
+               goto fail1;
+
+       imx_phycore_snd_device = platform_device_alloc("wm9712-codec", -1);
+       if (!imx_phycore_snd_device) {
+               ret = -ENOMEM;
+               goto fail2;
+       }
+       ret = platform_device_add(imx_phycore_snd_device);
+
+       if (ret) {
+               printk(KERN_ERR "ASoC: Platform device allocation failed\n");
+               goto fail3;
+       }
+
+       return 0;
+
+fail3:
+       platform_device_put(imx_phycore_snd_device);
+fail2:
+       platform_device_del(imx_phycore_snd_ac97_device);
+fail1:
+       platform_device_put(imx_phycore_snd_ac97_device);
+       return ret;
+}
+
+static void __exit imx_phycore_exit(void)
+{
+       platform_device_unregister(imx_phycore_snd_device);
+       platform_device_unregister(imx_phycore_snd_ac97_device);
+}
+
+late_initcall(imx_phycore_init);
+module_exit(imx_phycore_exit);
+
+MODULE_AUTHOR("Sascha Hauer <s.hauer@pengutronix.de>");
+MODULE_DESCRIPTION("PhyCORE ALSA SoC driver");
+MODULE_LICENSE("GPL");