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ALSA: hdac: add extended ops in the hdac_bus 

Add extended ops in the hdac_bus to allow calling the ASoC HDAC library
ops to reuse the legacy HDA codec drivers with ASoC framework.
Extended ops are used by the legacy codec drivers to call into
hdac_hda library, in the subsequent patches..

Signed-off-by: Rakesh Ughreja <rakesh.a.ughreja@intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Rakesh Ughreja 2018-06-01 22:53:58 -05:00 committed by Takashi Iwai
parent 6298542fa3
commit cb04ba3318
4 changed files with 15 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
include/sound/hdaudio.h
View File

@ -213,6 +213,14 @@ struct hdac_bus_ops {
int (*link_power)(struct hdac_bus *bus, bool enable);
};
/*
* ops used for ASoC HDA codec drivers
*/
struct hdac_ext_bus_ops {
int (*hdev_attach)(struct hdac_device *hdev);
int (*hdev_detach)(struct hdac_device *hdev);
};
/*
* Lowlevel I/O operators
*/
@ -265,6 +273,7 @@ struct hdac_bus {
struct device *dev;
const struct hdac_bus_ops *ops;
const struct hdac_io_ops *io_ops;
const struct hdac_ext_bus_ops *ext_ops;
/* h/w resources */
unsigned long addr;

3
include/sound/hdaudio_ext.h
View File

@ -6,7 +6,8 @@
int snd_hdac_ext_bus_init(struct hdac_bus *bus, struct device *dev,
const struct hdac_bus_ops *ops,
const struct hdac_io_ops *io_ops);
const struct hdac_io_ops *io_ops,
const struct hdac_ext_bus_ops *ext_ops);
void snd_hdac_ext_bus_exit(struct hdac_bus *bus);
int snd_hdac_ext_bus_device_init(struct hdac_bus *bus, int addr,

4
sound/hda/ext/hdac_ext_bus.c
View File

@ -89,7 +89,8 @@ static const struct hdac_io_ops hdac_ext_default_io = {
*/
int snd_hdac_ext_bus_init(struct hdac_bus *bus, struct device *dev,
const struct hdac_bus_ops *ops,
const struct hdac_io_ops *io_ops)
const struct hdac_io_ops *io_ops,
const struct hdac_ext_bus_ops *ext_ops)
{
int ret;
static int idx;
@ -102,6 +103,7 @@ int snd_hdac_ext_bus_init(struct hdac_bus *bus, struct device *dev,
if (ret < 0)
return ret;
bus->ext_ops = ext_ops;
INIT_LIST_HEAD(&bus->hlink_list);
bus->idx = idx++;

2
sound/soc/intel/skylake/skl.c
View File

@ -803,7 +803,7 @@ static int skl_create(struct pci_dev *pci,
}
bus = skl_to_bus(skl);
snd_hdac_ext_bus_init(bus, &pci->dev, &bus_core_ops, io_ops);
snd_hdac_ext_bus_init(bus, &pci->dev, &bus_core_ops, io_ops, NULL);
bus->use_posbuf = 1;
skl->pci = pci;
INIT_WORK(&skl->probe_work, skl_probe_work);