The SOF HD-audio bus has its house-made initialization code. It's supposedly for making the code independent from HD-audio bus drivers. However, this is error-prone, and above all, the SOF driver has already dependency on HD-audio bus driver when CONFIG_SND_SOF_HDA is set. That is, if this Kconfig is set, there is no reason to avoid the call to the proper bus init function.
Also, the ext_ops that is set at bus initialization can be better handled inside sof_hda_bus_init(). We don't need to refer this outside the bus initialization.
So this patch addresses these issues: - sof_hda_bus_init() calls nothing but snd_hdac_ext_bus_init() when CONFIG_SND_SOF_HDA is set. Otherwise some fields are initialized locally like before for avoiding the dependency. - ext_ops is referred inside sof_hda_bus_init(). The ext_ops argument of snd_hda_bus_init() is dropped.
Signed-off-by: Takashi Iwai tiwai@suse.de --- sound/soc/sof/intel/hda-bus.c | 31 +++++++++---------------------- sound/soc/sof/intel/hda.c | 6 +----- sound/soc/sof/intel/hda.h | 3 +-- 3 files changed, 11 insertions(+), 29 deletions(-)
diff --git a/sound/soc/sof/intel/hda-bus.c b/sound/soc/sof/intel/hda-bus.c index 438121c70f99..0caec3a070d3 100644 --- a/sound/soc/sof/intel/hda-bus.c +++ b/sound/soc/sof/intel/hda-bus.c @@ -12,28 +12,26 @@ #include "../sof-priv.h" #include "hda.h"
-#if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA) - -static const struct hdac_bus_ops bus_ops = { - .command = snd_hdac_bus_send_cmd, - .get_response = snd_hdac_bus_get_response, -}; - +#if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA_AUDIO_CODEC) +#define sof_hda_ext_ops snd_soc_hdac_hda_get_ops() +#else +#define sof_hda_ext_ops NULL #endif
/* * This can be used for both with/without hda link support. */ -void sof_hda_bus_init(struct hdac_bus *bus, struct device *dev, - const struct hdac_ext_bus_ops *ext_ops) +void sof_hda_bus_init(struct hdac_bus *bus, struct device *dev) { +#if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA) + snd_hdac_ext_bus_init(bus, dev, NULL, sof_hda_ext_ops); +#else /* CONFIG_SND_SOC_SOF_HDA */ memset(bus, 0, sizeof(*bus)); bus->dev = dev;
INIT_LIST_HEAD(&bus->stream_list);
bus->irq = -1; - bus->ext_ops = ext_ops;
/* * There is only one HDA bus atm. keep the index as 0. @@ -42,16 +40,5 @@ void sof_hda_bus_init(struct hdac_bus *bus, struct device *dev, bus->idx = 0;
spin_lock_init(&bus->reg_lock); - -#if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA) - INIT_LIST_HEAD(&bus->codec_list); - INIT_LIST_HEAD(&bus->hlink_list); - - mutex_init(&bus->cmd_mutex); - mutex_init(&bus->lock); - bus->ops = &bus_ops; - INIT_WORK(&bus->unsol_work, snd_hdac_bus_process_unsol_events); - bus->cmd_dma_state = true; -#endif - +#endif /* CONFIG_SND_SOC_SOF_HDA */ } diff --git a/sound/soc/sof/intel/hda.c b/sound/soc/sof/intel/hda.c index 7f665392618f..7ca27000c34d 100644 --- a/sound/soc/sof/intel/hda.c +++ b/sound/soc/sof/intel/hda.c @@ -236,7 +236,6 @@ static int hda_init(struct snd_sof_dev *sdev) { struct hda_bus *hbus; struct hdac_bus *bus; - struct hdac_ext_bus_ops *ext_ops = NULL; struct pci_dev *pci = to_pci_dev(sdev->dev); int ret;
@@ -244,10 +243,7 @@ static int hda_init(struct snd_sof_dev *sdev) bus = sof_to_bus(sdev);
/* HDA bus init */ -#if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA_AUDIO_CODEC) - ext_ops = snd_soc_hdac_hda_get_ops(); -#endif - sof_hda_bus_init(bus, &pci->dev, ext_ops); + sof_hda_bus_init(bus, &pci->dev);
/* Workaround for a communication error on CFL (bko#199007) and CNL */ if (IS_CFL(pci) || IS_CNL(pci)) diff --git a/sound/soc/sof/intel/hda.h b/sound/soc/sof/intel/hda.h index d9c17146200b..75b096050fa2 100644 --- a/sound/soc/sof/intel/hda.h +++ b/sound/soc/sof/intel/hda.h @@ -549,8 +549,7 @@ void hda_dsp_ctrl_stop_chip(struct snd_sof_dev *sdev); /* * HDA bus operations. */ -void sof_hda_bus_init(struct hdac_bus *bus, struct device *dev, - const struct hdac_ext_bus_ops *ext_ops); +void sof_hda_bus_init(struct hdac_bus *bus, struct device *dev);
#if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA) /*