1 // SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) 2 // 3 // This file is provided under a dual BSD/GPLv2 license. When using or 4 // redistributing this file, you may do so under either license. 5 // 6 // Copyright(c) 2018 Intel Corporation. All rights reserved. 7 // 8 // Authors: Keyon Jie <yang.jie@linux.intel.com> 9 10 #include <linux/io.h> 11 #include <sound/hdaudio.h> 12 #include "../sof-priv.h" 13 #include "hda.h" 14 15 #if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA_AUDIO_CODEC) 16 #include "../../codecs/hdac_hda.h" 17 #define sof_hda_ext_ops snd_soc_hdac_hda_get_ops() 18 #else 19 #define sof_hda_ext_ops NULL 20 #endif 21 22 /* 23 * This can be used for both with/without hda link support. 24 */ 25 void sof_hda_bus_init(struct hdac_bus *bus, struct device *dev) 26 { 27 #if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA) 28 snd_hdac_ext_bus_init(bus, dev, NULL, sof_hda_ext_ops); 29 #else /* CONFIG_SND_SOC_SOF_HDA */ 30 memset(bus, 0, sizeof(*bus)); 31 bus->dev = dev; 32 33 INIT_LIST_HEAD(&bus->stream_list); 34 35 bus->irq = -1; 36 37 /* 38 * There is only one HDA bus atm. keep the index as 0. 39 * Need to fix when there are more than one HDA bus. 40 */ 41 bus->idx = 0; 42 43 spin_lock_init(&bus->reg_lock); 44 #endif /* CONFIG_SND_SOC_SOF_HDA */ 45 } 46