1 /* 2 * Efika driver for the PSC of the Freescale MPC52xx 3 * configured as AC97 interface 4 * 5 * Copyright 2008 Jon Smirl, Digispeaker 6 * Author: Jon Smirl <jonsmirl@gmail.com> 7 * 8 * This file is licensed under the terms of the GNU General Public License 9 * version 2. This program is licensed "as is" without any warranty of any 10 * kind, whether express or implied. 11 */ 12 13 #include <linux/init.h> 14 #include <linux/module.h> 15 #include <linux/interrupt.h> 16 #include <linux/device.h> 17 #include <linux/delay.h> 18 #include <linux/of_device.h> 19 #include <linux/of_platform.h> 20 #include <linux/dma-mapping.h> 21 22 #include <sound/core.h> 23 #include <sound/pcm.h> 24 #include <sound/pcm_params.h> 25 #include <sound/initval.h> 26 #include <sound/soc.h> 27 28 #include "mpc5200_dma.h" 29 #include "mpc5200_psc_ac97.h" 30 #include "../codecs/stac9766.h" 31 32 #define DRV_NAME "efika-audio-fabric" 33 34 static struct snd_soc_dai_link efika_fabric_dai[] = { 35 { 36 .name = "AC97", 37 .stream_name = "AC97 Analog", 38 .codec_dai_name = "stac9766-hifi-analog", 39 .cpu_dai_name = "mpc5200-psc-ac97.0", 40 .platform_name = "mpc5200-pcm-audio", 41 .codec_name = "stac9766-codec", 42 }, 43 { 44 .name = "AC97", 45 .stream_name = "AC97 IEC958", 46 .codec_dai_name = "stac9766-hifi-IEC958", 47 .cpu_dai_name = "mpc5200-psc-ac97.1", 48 .platform_name = "mpc5200-pcm-audio", 49 .codec_name = "stac9766-codec", 50 }, 51 }; 52 53 static struct snd_soc_card card = { 54 .name = "Efika", 55 .owner = THIS_MODULE, 56 .dai_link = efika_fabric_dai, 57 .num_links = ARRAY_SIZE(efika_fabric_dai), 58 }; 59 60 static __init int efika_fabric_init(void) 61 { 62 struct platform_device *pdev; 63 int rc; 64 65 if (!of_machine_is_compatible("bplan,efika")) 66 return -ENODEV; 67 68 pdev = platform_device_alloc("soc-audio", 1); 69 if (!pdev) { 70 pr_err("efika_fabric_init: platform_device_alloc() failed\n"); 71 return -ENODEV; 72 } 73 74 platform_set_drvdata(pdev, &card); 75 76 rc = platform_device_add(pdev); 77 if (rc) { 78 pr_err("efika_fabric_init: platform_device_add() failed\n"); 79 platform_device_put(pdev); 80 return -ENODEV; 81 } 82 return 0; 83 } 84 85 module_init(efika_fabric_init); 86 87 88 MODULE_AUTHOR("Jon Smirl <jonsmirl@gmail.com>"); 89 MODULE_DESCRIPTION(DRV_NAME ": mpc5200 Efika fabric driver"); 90 MODULE_LICENSE("GPL"); 91 92