Commit 51d7d358 authored by Takashi Iwai's avatar Takashi Iwai
Browse files

Merge branch 'topic/hda-core-intel' into for-next



Merge the development branch for HD-audio ext bus refactoring.

Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parents 1259d239 cb04ba33
......@@ -215,6 +215,11 @@ struct hdac_driver {
const struct hda_device_id *id_table;
int (*match)(struct hdac_device *dev, struct hdac_driver *drv);
void (*unsol_event)(struct hdac_device *dev, unsigned int event);
/* fields used by ext bus APIs */
int (*probe)(struct hdac_device *dev);
int (*remove)(struct hdac_device *dev);
void (*shutdown)(struct hdac_device *dev);
};
#define drv_to_hdac_driver(_drv) container_of(_drv, struct hdac_driver, driver)
......@@ -235,6 +240,14 @@ 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
*/
......@@ -277,11 +290,17 @@ struct hdac_rb {
* @mlcap: MultiLink capabilities pointer
* @gtscap: gts capabilities pointer
* @drsmcap: dma resume capabilities pointer
* @num_streams: streams supported
* @idx: HDA link index
* @hlink_list: link list of HDA links
* @lock: lock for link mgmt
* @cmd_dma_state: state of cmd DMAs: CORB and RIRB
*/
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;
......@@ -344,6 +363,16 @@ struct hdac_bus {
/* i915 component interface */
struct i915_audio_component *audio_component;
int i915_power_refcount;
/* parameters required for enhanced capabilities */
int num_streams;
int idx;
struct list_head hlink_list;
struct mutex lock;
bool cmd_dma_state;
};
int snd_hdac_bus_init(struct hdac_bus *bus, struct device *dev,
......
......@@ -4,38 +4,16 @@
#include <sound/hdaudio.h>
/**
* hdac_ext_bus: HDAC extended bus for extended HDA caps
*
* @bus: hdac bus
* @num_streams: streams supported
* @hlink_list: link list of HDA links
* @lock: lock for link mgmt
* @cmd_dma_state: state of cmd DMAs: CORB and RIRB
*/
struct hdac_ext_bus {
struct hdac_bus bus;
int num_streams;
int idx;
struct list_head hlink_list;
struct mutex lock;
bool cmd_dma_state;
};
int snd_hdac_ext_bus_init(struct hdac_ext_bus *sbus, struct device *dev,
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_ext_bus *sbus);
int snd_hdac_ext_bus_device_init(struct hdac_ext_bus *sbus, int addr);
void snd_hdac_ext_bus_exit(struct hdac_bus *bus);
int snd_hdac_ext_bus_device_init(struct hdac_bus *bus, int addr,
struct hdac_device *hdev);
void snd_hdac_ext_bus_device_exit(struct hdac_device *hdev);
void snd_hdac_ext_bus_device_remove(struct hdac_ext_bus *ebus);
#define ebus_to_hbus(ebus) (&(ebus)->bus)
#define hbus_to_ebus(_bus) \
container_of(_bus, struct hdac_ext_bus, bus)
void snd_hdac_ext_bus_device_remove(struct hdac_bus *bus);
#define HDA_CODEC_REV_EXT_ENTRY(_vid, _rev, _name, drv_data) \
{ .vendor_id = (_vid), .rev_id = (_rev), .name = (_name), \
......@@ -44,14 +22,14 @@ void snd_hdac_ext_bus_device_remove(struct hdac_ext_bus *ebus);
#define HDA_CODEC_EXT_ENTRY(_vid, _revid, _name, _drv_data) \
HDA_CODEC_REV_EXT_ENTRY(_vid, _revid, _name, _drv_data)
void snd_hdac_ext_bus_ppcap_enable(struct hdac_ext_bus *chip, bool enable);
void snd_hdac_ext_bus_ppcap_int_enable(struct hdac_ext_bus *chip, bool enable);
void snd_hdac_ext_bus_ppcap_enable(struct hdac_bus *chip, bool enable);
void snd_hdac_ext_bus_ppcap_int_enable(struct hdac_bus *chip, bool enable);
void snd_hdac_ext_stream_spbcap_enable(struct hdac_ext_bus *chip,
void snd_hdac_ext_stream_spbcap_enable(struct hdac_bus *chip,
bool enable, int index);
int snd_hdac_ext_bus_get_ml_capabilities(struct hdac_ext_bus *bus);
struct hdac_ext_link *snd_hdac_ext_bus_get_link(struct hdac_ext_bus *bus,
int snd_hdac_ext_bus_get_ml_capabilities(struct hdac_bus *bus);
struct hdac_ext_link *snd_hdac_ext_bus_get_link(struct hdac_bus *bus,
const char *codec_name);
enum hdac_ext_stream_type {
......@@ -100,28 +78,28 @@ struct hdac_ext_stream {
#define stream_to_hdac_ext_stream(s) \
container_of(s, struct hdac_ext_stream, hstream)
void snd_hdac_ext_stream_init(struct hdac_ext_bus *bus,
void snd_hdac_ext_stream_init(struct hdac_bus *bus,
struct hdac_ext_stream *stream, int idx,
int direction, int tag);
int snd_hdac_ext_stream_init_all(struct hdac_ext_bus *ebus, int start_idx,
int snd_hdac_ext_stream_init_all(struct hdac_bus *bus, int start_idx,
int num_stream, int dir);
void snd_hdac_stream_free_all(struct hdac_ext_bus *ebus);
void snd_hdac_link_free_all(struct hdac_ext_bus *ebus);
struct hdac_ext_stream *snd_hdac_ext_stream_assign(struct hdac_ext_bus *bus,
void snd_hdac_stream_free_all(struct hdac_bus *bus);
void snd_hdac_link_free_all(struct hdac_bus *bus);
struct hdac_ext_stream *snd_hdac_ext_stream_assign(struct hdac_bus *bus,
struct snd_pcm_substream *substream,
int type);
void snd_hdac_ext_stream_release(struct hdac_ext_stream *azx_dev, int type);
void snd_hdac_ext_stream_decouple(struct hdac_ext_bus *bus,
void snd_hdac_ext_stream_decouple(struct hdac_bus *bus,
struct hdac_ext_stream *azx_dev, bool decouple);
void snd_hdac_ext_stop_streams(struct hdac_ext_bus *sbus);
void snd_hdac_ext_stop_streams(struct hdac_bus *bus);
int snd_hdac_ext_stream_set_spib(struct hdac_ext_bus *ebus,
int snd_hdac_ext_stream_set_spib(struct hdac_bus *bus,
struct hdac_ext_stream *stream, u32 value);
int snd_hdac_ext_stream_get_spbmaxfifo(struct hdac_ext_bus *ebus,
int snd_hdac_ext_stream_get_spbmaxfifo(struct hdac_bus *bus,
struct hdac_ext_stream *stream);
void snd_hdac_ext_stream_drsm_enable(struct hdac_ext_bus *ebus,
void snd_hdac_ext_stream_drsm_enable(struct hdac_bus *bus,
bool enable, int index);
int snd_hdac_ext_stream_set_dpibr(struct hdac_ext_bus *ebus,
int snd_hdac_ext_stream_set_dpibr(struct hdac_bus *bus,
struct hdac_ext_stream *stream, u32 value);
int snd_hdac_ext_stream_set_lpib(struct hdac_ext_stream *stream, u32 value);
......@@ -144,17 +122,15 @@ struct hdac_ext_link {
int snd_hdac_ext_bus_link_power_up(struct hdac_ext_link *link);
int snd_hdac_ext_bus_link_power_down(struct hdac_ext_link *link);
int snd_hdac_ext_bus_link_power_up_all(struct hdac_ext_bus *ebus);
int snd_hdac_ext_bus_link_power_down_all(struct hdac_ext_bus *ebus);
int snd_hdac_ext_bus_link_power_up_all(struct hdac_bus *bus);
int snd_hdac_ext_bus_link_power_down_all(struct hdac_bus *bus);
void snd_hdac_ext_link_set_stream_id(struct hdac_ext_link *link,
int stream);
void snd_hdac_ext_link_clear_stream_id(struct hdac_ext_link *link,
int stream);
int snd_hdac_ext_bus_link_get(struct hdac_ext_bus *ebus,
struct hdac_ext_link *link);
int snd_hdac_ext_bus_link_put(struct hdac_ext_bus *ebus,
struct hdac_ext_link *link);
int snd_hdac_ext_bus_link_get(struct hdac_bus *bus, struct hdac_ext_link *link);
int snd_hdac_ext_bus_link_put(struct hdac_bus *bus, struct hdac_ext_link *link);
/* update register macro */
#define snd_hdac_updatel(addr, reg, mask, val) \
......@@ -181,53 +157,12 @@ struct hda_dai_map {
u32 maxbps;
};
#define HDA_MAX_NIDS 16
/**
* struct hdac_ext_device - HDAC Ext device
*
* @hdac: hdac core device
* @nid_list - the dai map which matches the dai-name with the nid
* @map_cur_idx - the idx in use in dai_map
* @ops - the hda codec ops common to all codec drivers
* @pvt_data - private data, for asoc contains asoc codec object
*/
struct hdac_ext_device {
struct hdac_device hdev;
struct hdac_ext_bus *ebus;
/* soc-dai to nid map */
struct hda_dai_map nid_list[HDA_MAX_NIDS];
unsigned int map_cur_idx;
/* codec ops */
struct hdac_ext_codec_ops ops;
struct snd_card *card;
void *scodec;
void *private_data;
};
struct hdac_ext_dma_params {
u32 format;
u8 stream_tag;
};
#define to_ehdac_device(dev) (container_of((dev), \
struct hdac_ext_device, hdev))
/*
* HD-audio codec base driver
*/
struct hdac_ext_driver {
struct hdac_driver hdac;
int (*probe)(struct hdac_ext_device *dev);
int (*remove)(struct hdac_ext_device *dev);
void (*shutdown)(struct hdac_ext_device *dev);
};
int snd_hda_ext_driver_register(struct hdac_ext_driver *drv);
void snd_hda_ext_driver_unregister(struct hdac_ext_driver *drv);
#define to_ehdac_driver(_drv) container_of(_drv, struct hdac_ext_driver, hdac)
int snd_hda_ext_driver_register(struct hdac_driver *drv);
void snd_hda_ext_driver_unregister(struct hdac_driver *drv);
#endif /* __SOUND_HDAUDIO_EXT_H */
......@@ -87,9 +87,10 @@ static const struct hdac_io_ops hdac_ext_default_io = {
*
* Returns 0 if successful, or a negative error code.
*/
int snd_hdac_ext_bus_init(struct hdac_ext_bus *ebus, struct device *dev,
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;
......@@ -98,15 +99,16 @@ int snd_hdac_ext_bus_init(struct hdac_ext_bus *ebus, struct device *dev,
if (io_ops == NULL)
io_ops = &hdac_ext_default_io;
ret = snd_hdac_bus_init(&ebus->bus, dev, ops, io_ops);
ret = snd_hdac_bus_init(bus, dev, ops, io_ops);
if (ret < 0)
return ret;
INIT_LIST_HEAD(&ebus->hlink_list);
ebus->idx = idx++;
bus->ext_ops = ext_ops;
INIT_LIST_HEAD(&bus->hlink_list);
bus->idx = idx++;
mutex_init(&ebus->lock);
ebus->cmd_dma_state = true;
mutex_init(&bus->lock);
bus->cmd_dma_state = true;
return 0;
}
......@@ -116,10 +118,10 @@ EXPORT_SYMBOL_GPL(snd_hdac_ext_bus_init);
* snd_hdac_ext_bus_exit - clean up a HD-audio extended bus
* @ebus: the pointer to extended bus object
*/
void snd_hdac_ext_bus_exit(struct hdac_ext_bus *ebus)
void snd_hdac_ext_bus_exit(struct hdac_bus *bus)
{
snd_hdac_bus_exit(&ebus->bus);
WARN_ON(!list_empty(&ebus->hlink_list));
snd_hdac_bus_exit(bus);
WARN_ON(!list_empty(&bus->hlink_list));
}
EXPORT_SYMBOL_GPL(snd_hdac_ext_bus_exit);
......@@ -135,21 +137,15 @@ static void default_release(struct device *dev)
*
* Returns zero for success or a negative error code.
*/
int snd_hdac_ext_bus_device_init(struct hdac_ext_bus *ebus, int addr)
int snd_hdac_ext_bus_device_init(struct hdac_bus *bus, int addr,
struct hdac_device *hdev)
{
struct hdac_ext_device *edev;
struct hdac_device *hdev = NULL;
struct hdac_bus *bus = ebus_to_hbus(ebus);
char name[15];
int ret;
edev = kzalloc(sizeof(*edev), GFP_KERNEL);
if (!edev)
return -ENOMEM;
hdev = &edev->hdev;
edev->ebus = ebus;
hdev->bus = bus;
snprintf(name, sizeof(name), "ehdaudio%dD%d", ebus->idx, addr);
snprintf(name, sizeof(name), "ehdaudio%dD%d", bus->idx, addr);
ret = snd_hdac_device_init(hdev, bus, name, addr);
if (ret < 0) {
......@@ -176,10 +172,8 @@ EXPORT_SYMBOL_GPL(snd_hdac_ext_bus_device_init);
*/
void snd_hdac_ext_bus_device_exit(struct hdac_device *hdev)
{
struct hdac_ext_device *edev = to_ehdac_device(hdev);
snd_hdac_device_exit(hdev);
kfree(edev);
kfree(hdev);
}
EXPORT_SYMBOL_GPL(snd_hdac_ext_bus_device_exit);
......@@ -188,14 +182,14 @@ EXPORT_SYMBOL_GPL(snd_hdac_ext_bus_device_exit);
*
* @ebus: HD-audio extended bus
*/
void snd_hdac_ext_bus_device_remove(struct hdac_ext_bus *ebus)
void snd_hdac_ext_bus_device_remove(struct hdac_bus *bus)
{
struct hdac_device *codec, *__codec;
/*
* we need to remove all the codec devices objects created in the
* snd_hdac_ext_bus_device_init
*/
list_for_each_entry_safe(codec, __codec, &ebus->bus.codec_list, list) {
list_for_each_entry_safe(codec, __codec, &bus->codec_list, list) {
snd_hdac_device_unregister(codec);
put_device(&codec->dev);
}
......@@ -204,35 +198,31 @@ EXPORT_SYMBOL_GPL(snd_hdac_ext_bus_device_remove);
#define dev_to_hdac(dev) (container_of((dev), \
struct hdac_device, dev))
static inline struct hdac_ext_driver *get_edrv(struct device *dev)
static inline struct hdac_driver *get_hdrv(struct device *dev)
{
struct hdac_driver *hdrv = drv_to_hdac_driver(dev->driver);
struct hdac_ext_driver *edrv = to_ehdac_driver(hdrv);
return edrv;
return hdrv;
}
static inline struct hdac_ext_device *get_edev(struct device *dev)
static inline struct hdac_device *get_hdev(struct device *dev)
{
struct hdac_device *hdev = dev_to_hdac_dev(dev);
struct hdac_ext_device *edev = to_ehdac_device(hdev);
return edev;
return hdev;
}
static int hda_ext_drv_probe(struct device *dev)
{
return (get_edrv(dev))->probe(get_edev(dev));
return (get_hdrv(dev))->probe(get_hdev(dev));
}
static int hdac_ext_drv_remove(struct device *dev)
{
return (get_edrv(dev))->remove(get_edev(dev));
return (get_hdrv(dev))->remove(get_hdev(dev));
}
static void hdac_ext_drv_shutdown(struct device *dev)
{
return (get_edrv(dev))->shutdown(get_edev(dev));
return (get_hdrv(dev))->shutdown(get_hdev(dev));
}
/**
......@@ -240,20 +230,20 @@ static void hdac_ext_drv_shutdown(struct device *dev)
*
* @drv: ext hda driver structure
*/
int snd_hda_ext_driver_register(struct hdac_ext_driver *drv)
int snd_hda_ext_driver_register(struct hdac_driver *drv)
{
drv->hdac.type = HDA_DEV_ASOC;
drv->hdac.driver.bus = &snd_hda_bus_type;
drv->type = HDA_DEV_ASOC;
drv->driver.bus = &snd_hda_bus_type;
/* we use default match */
if (drv->probe)
drv->hdac.driver.probe = hda_ext_drv_probe;
drv->driver.probe = hda_ext_drv_probe;
if (drv->remove)
drv->hdac.driver.remove = hdac_ext_drv_remove;
drv->driver.remove = hdac_ext_drv_remove;
if (drv->shutdown)
drv->hdac.driver.shutdown = hdac_ext_drv_shutdown;
drv->driver.shutdown = hdac_ext_drv_shutdown;
return driver_register(&drv->hdac.driver);
return driver_register(&drv->driver);
}
EXPORT_SYMBOL_GPL(snd_hda_ext_driver_register);
......@@ -262,8 +252,8 @@ EXPORT_SYMBOL_GPL(snd_hda_ext_driver_register);
*
* @drv: ext hda driver structure
*/
void snd_hda_ext_driver_unregister(struct hdac_ext_driver *drv)
void snd_hda_ext_driver_unregister(struct hdac_driver *drv)
{
driver_unregister(&drv->hdac.driver);
driver_unregister(&drv->driver);
}
EXPORT_SYMBOL_GPL(snd_hda_ext_driver_unregister);
......@@ -39,9 +39,8 @@
* @ebus: HD-audio extended core bus
* @enable: flag to turn on/off the capability
*/
void snd_hdac_ext_bus_ppcap_enable(struct hdac_ext_bus *ebus, bool enable)
void snd_hdac_ext_bus_ppcap_enable(struct hdac_bus *bus, bool enable)
{
struct hdac_bus *bus = &ebus->bus;
if (!bus->ppcap) {
dev_err(bus->dev, "Address of PP capability is NULL");
......@@ -60,9 +59,8 @@ EXPORT_SYMBOL_GPL(snd_hdac_ext_bus_ppcap_enable);
* @ebus: HD-audio extended core bus
* @enable: flag to enable/disable interrupt
*/
void snd_hdac_ext_bus_ppcap_int_enable(struct hdac_ext_bus *ebus, bool enable)
void snd_hdac_ext_bus_ppcap_int_enable(struct hdac_bus *bus, bool enable)
{
struct hdac_bus *bus = &ebus->bus;
if (!bus->ppcap) {
dev_err(bus->dev, "Address of PP capability is NULL\n");
......@@ -89,12 +87,11 @@ EXPORT_SYMBOL_GPL(snd_hdac_ext_bus_ppcap_int_enable);
* in hlink_list of extended hdac bus
* Note: this will be freed on bus exit by driver
*/
int snd_hdac_ext_bus_get_ml_capabilities(struct hdac_ext_bus *ebus)
int snd_hdac_ext_bus_get_ml_capabilities(struct hdac_bus *bus)
{
int idx;
u32 link_count;
struct hdac_ext_link *hlink;
struct hdac_bus *bus = &ebus->bus;
link_count = readl(bus->mlcap + AZX_REG_ML_MLCD) + 1;
......@@ -114,7 +111,7 @@ int snd_hdac_ext_bus_get_ml_capabilities(struct hdac_ext_bus *ebus)
/* since link in On, update the ref */
hlink->ref_count = 1;
list_add_tail(&hlink->list, &ebus->hlink_list);
list_add_tail(&hlink->list, &bus->hlink_list);
}
return 0;
......@@ -127,12 +124,12 @@ EXPORT_SYMBOL_GPL(snd_hdac_ext_bus_get_ml_capabilities);
* @ebus: HD-audio ext core bus
*/
void snd_hdac_link_free_all(struct hdac_ext_bus *ebus)
void snd_hdac_link_free_all(struct hdac_bus *bus)
{
struct hdac_ext_link *l;
while (!list_empty(&ebus->hlink_list)) {
l = list_first_entry(&ebus->hlink_list, struct hdac_ext_link, list);
while (!list_empty(&bus->hlink_list)) {
l = list_first_entry(&bus->hlink_list, struct hdac_ext_link, list);
list_del(&l->list);
kfree(l);
}
......@@ -144,7 +141,7 @@ EXPORT_SYMBOL_GPL(snd_hdac_link_free_all);
* @ebus: HD-audio extended core bus
* @codec_name: codec name
*/
struct hdac_ext_link *snd_hdac_ext_bus_get_link(struct hdac_ext_bus *ebus,
struct hdac_ext_link *snd_hdac_ext_bus_get_link(struct hdac_bus *bus,
const char *codec_name)
{
int i;
......@@ -153,10 +150,10 @@ struct hdac_ext_link *snd_hdac_ext_bus_get_link(struct hdac_ext_bus *ebus,
if (sscanf(codec_name, "ehdaudio%dD%d", &bus_idx, &addr) != 2)
return NULL;
if (ebus->idx != bus_idx)
if (bus->idx != bus_idx)
return NULL;
list_for_each_entry(hlink, &ebus->hlink_list, list) {
list_for_each_entry(hlink, &bus->hlink_list, list) {
for (i = 0; i < HDA_MAX_CODECS; i++) {
if (hlink->lsdiid & (0x1 << addr))
return hlink;
......@@ -219,12 +216,12 @@ EXPORT_SYMBOL_GPL(snd_hdac_ext_bus_link_power_down);
* snd_hdac_ext_bus_link_power_up_all -power up all hda link
* @ebus: HD-audio extended bus
*/
int snd_hdac_ext_bus_link_power_up_all(struct hdac_ext_bus *ebus)
int snd_hdac_ext_bus_link_power_up_all(struct hdac_bus *bus)
{
struct hdac_ext_link *hlink = NULL;
int ret;
list_for_each_entry(hlink, &ebus->hlink_list, list) {
list_for_each_entry(hlink, &bus->hlink_list, list) {
snd_hdac_updatel(hlink->ml_addr,
AZX_REG_ML_LCTL, 0, AZX_MLCTL_SPA);
ret = check_hdac_link_power_active(hlink, true);
......@@ -240,12 +237,12 @@ EXPORT_SYMBOL_GPL(snd_hdac_ext_bus_link_power_up_all);
* snd_hdac_ext_bus_link_power_down_all -power down all hda link
* @ebus: HD-audio extended bus
*/
int snd_hdac_ext_bus_link_power_down_all(struct hdac_ext_bus *ebus)
int snd_hdac_ext_bus_link_power_down_all(struct hdac_bus *bus)
{
struct hdac_ext_link *hlink = NULL;
int ret;
list_for_each_entry(hlink, &ebus->hlink_list, list) {
list_for_each_entry(hlink, &bus->hlink_list, list) {
snd_hdac_updatel(hlink->ml_addr, AZX_REG_ML_LCTL, AZX_MLCTL_SPA, 0);
ret = check_hdac_link_power_active(hlink, false);
if (ret < 0)
......@@ -256,39 +253,48 @@ int snd_hdac_ext_bus_link_power_down_all(struct hdac_ext_bus *ebus)
}
EXPORT_SYMBOL_GPL(snd_hdac_ext_bus_link_power_down_all);
int snd_hdac_ext_bus_link_get(struct hdac_ext_bus *ebus,
int snd_hdac_ext_bus_link_get(struct hdac_bus *bus,
struct hdac_ext_link *link)
{
int ret = 0;
mutex_lock(&ebus->lock);
mutex_lock(&bus->lock);
/*
* if we move from 0 to 1, count will be 1 so power up this link
* as well, also check the dma status and trigger that
*/
if (++link->ref_count == 1) {
if (!ebus->cmd_dma_state) {
snd_hdac_bus_init_cmd_io(&ebus->bus);
ebus->cmd_dma_state = true;
if (!bus->cmd_dma_state) {
snd_hdac_bus_init_cmd_io(bus);
bus->cmd_dma_state = true;
}
ret = snd_hdac_ext_bus_link_power_up(link);
/*
* wait for 521usec for codec to report status
* HDA spec section 4.3 - Codec Discovery
*/
udelay(521);
bus->codec_mask = snd_hdac_chip_readw(bus, STATESTS);
dev_dbg(bus->dev, "codec_mask = 0x%lx\n", bus->codec_mask);
snd_hdac_chip_writew(bus, STATESTS, bus->codec_mask);
}
mutex_unlock(&ebus->lock);
mutex_unlock(&bus->lock);
return ret;
}
EXPORT_SYMBOL_GPL(snd_hdac_ext_bus_link_get);
int snd_hdac_ext_bus_link_put(struct hdac_ext_bus *ebus,
int snd_hdac_ext_bus_link_put(struct hdac_bus *bus,
struct hdac_ext_link *link)
{
int ret = 0;
struct hdac_ext_link *hlink;
bool link_up = false;
mutex_lock(&ebus->lock);
mutex_lock(&bus->lock);
/*
* if we move from 1 to 0, count will be 0
......@@ -301,7 +307,7 @@ int snd_hdac_ext_bus_link_put(struct hdac_ext_bus *ebus,
* now check if all links are off, if so turn off
* cmd dma as well
*/
list_for_each_entry(hlink, &ebus->hlink_list, list) {
list_for_each_entry(hlink, &bus->hlink_list, list) {
if (hlink->ref_count) {
link_up = true;
break;
......@@ -309,12 +315,12 @@ int snd_hdac_ext_bus_link_put(struct hdac_ext_bus *ebus,
}
if (!link_up) {
snd_hdac_bus_stop_cmd_io(&ebus->bus);
ebus->cmd_dma_state = false;
snd_hdac_bus_stop_cmd_io(bus);
bus->cmd_dma_state = false;
}
}
mutex_unlock(&ebus->lock);
mutex_unlock(&bus->lock);
return ret;
}