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 31 #define DRV_NAME "efika-audio-fabric" 32 33 static struct snd_soc_dai_link efika_fabric_dai[] = { 34 { 35 .name = "AC97", 36 .stream_name = "AC97 Analog", 37 .codec_dai_name = "stac9766-hifi-analog", 38 .cpu_dai_name = "mpc5200-psc-ac97.0", 39 .platform_name = "mpc5200-pcm-audio", 40 .codec_name = "stac9766-codec", 41 }, 42 { 43 .name = "AC97", 44 .stream_name = "AC97 IEC958", 45 .codec_dai_name = "stac9766-hifi-IEC958", 46 .cpu_dai_name = "mpc5200-psc-ac97.1", 47 .platform_name = "mpc5200-pcm-audio", 48 .codec_name = "stac9766-codec", 49 }, 50 }; 51 52 static struct snd_soc_card card = { 53 .name = "Efika", 54 .owner = THIS_MODULE, 55 .dai_link = efika_fabric_dai, 56 .num_links = ARRAY_SIZE(efika_fabric_dai), 57 }; 58 59 static __init int efika_fabric_init(void) 60 { 61 struct platform_device *pdev; 62 int rc; 63 64 if (!of_machine_is_compatible("bplan,efika")) 65 return -ENODEV; 66 67 pdev = platform_device_alloc("soc-audio", 1); 68 if (!pdev) { 69 pr_err("efika_fabric_init: platform_device_alloc() failed\n"); 70 return -ENODEV; 71 } 72 73 platform_set_drvdata(pdev, &card); 74 75 rc = platform_device_add(pdev); 76 if (rc) { 77 pr_err("efika_fabric_init: platform_device_add() failed\n"); 78 platform_device_put(pdev); 79 return -ENODEV; 80 } 81 return 0; 82 } 83 84 module_init(efika_fabric_init); 85 86 87 MODULE_AUTHOR("Jon Smirl <jonsmirl@gmail.com>"); 88 MODULE_DESCRIPTION(DRV_NAME ": mpc5200 Efika fabric driver"); 89 MODULE_LICENSE("GPL"); 90 91