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.h> 19 #include <linux/platform_device.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 30 #define DRV_NAME "efika-audio-fabric" 31 32 SND_SOC_DAILINK_DEFS(analog, 33 DAILINK_COMP_ARRAY(COMP_CPU("mpc5200-psc-ac97.0")), 34 DAILINK_COMP_ARRAY(COMP_CODEC("stac9766-codec", 35 "stac9766-hifi-analog")), 36 DAILINK_COMP_ARRAY(COMP_PLATFORM("mpc5200-pcm-audio"))); 37 38 SND_SOC_DAILINK_DEFS(iec958, 39 DAILINK_COMP_ARRAY(COMP_CPU("mpc5200-psc-ac97.1")), 40 DAILINK_COMP_ARRAY(COMP_CODEC("stac9766-codec", 41 "stac9766-hifi-IEC958")), 42 DAILINK_COMP_ARRAY(COMP_PLATFORM("mpc5200-pcm-audio"))); 43 44 static struct snd_soc_dai_link efika_fabric_dai[] = { 45 { 46 .name = "AC97", 47 .stream_name = "AC97 Analog", 48 SND_SOC_DAILINK_REG(analog), 49 }, 50 { 51 .name = "AC97", 52 .stream_name = "AC97 IEC958", 53 SND_SOC_DAILINK_REG(iec958), 54 }, 55 }; 56 57 static struct snd_soc_card card = { 58 .name = "Efika", 59 .owner = THIS_MODULE, 60 .dai_link = efika_fabric_dai, 61 .num_links = ARRAY_SIZE(efika_fabric_dai), 62 }; 63 64 static __init int efika_fabric_init(void) 65 { 66 struct platform_device *pdev; 67 int rc; 68 69 if (!of_machine_is_compatible("bplan,efika")) 70 return -ENODEV; 71 72 pdev = platform_device_alloc("soc-audio", 1); 73 if (!pdev) { 74 pr_err("efika_fabric_init: platform_device_alloc() failed\n"); 75 return -ENODEV; 76 } 77 78 platform_set_drvdata(pdev, &card); 79 80 rc = platform_device_add(pdev); 81 if (rc) { 82 pr_err("efika_fabric_init: platform_device_add() failed\n"); 83 platform_device_put(pdev); 84 return -ENODEV; 85 } 86 return 0; 87 } 88 89 module_init(efika_fabric_init); 90 91 92 MODULE_AUTHOR("Jon Smirl <jonsmirl@gmail.com>"); 93 MODULE_DESCRIPTION(DRV_NAME ": mpc5200 Efika fabric driver"); 94 MODULE_LICENSE("GPL"); 95 96