korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-11-15 08:14:15 +08:00
Code Issues Packages Projects Releases Wiki Activity

ASoC: hdac_hdmi: add link management

Browse Source 
Manage the hda idisp link using shiny new link APIs.  We need to
keep link On while we probe and also hold the reference in runtime
resume and drop in suspend

Signed-off-by: Jeeja KP <jeeja.kp@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Vinod Koul 2016-05-12 08:58:55 +05:30 committed by Mark Brown
parent cce6c149eb
commit b2047e996c
1 changed files with 30 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

32
sound/soc/codecs/hdac_hdmi.c
View File

@ -1378,10 +1378,18 @@ static int hdmi_codec_probe(struct snd_soc_codec *codec)
struct snd_soc_dapm_context *dapm =
snd_soc_component_get_dapm(&codec->component);
struct hdac_hdmi_pin *pin;
struct hdac_ext_link *hlink = NULL;
int ret;
edev->scodec = codec;
/*
* hold the ref while we probe, also no need to drop the ref on
* exit, we call pm_runtime_suspend() so that will do for us
*/
hlink = snd_hdac_ext_bus_get_link(edev->ebus, dev_name(&edev->hdac.dev));
snd_hdac_ext_bus_link_get(edev->ebus, hlink);
ret = create_fill_widget_route_map(dapm);
if (ret < 0)
return ret;
@ -1480,9 +1488,14 @@ static int hdac_hdmi_dev_probe(struct hdac_ext_device *edev)
struct hdac_device *codec = &edev->hdac;
struct hdac_hdmi_priv *hdmi_priv;
struct snd_soc_dai_driver *hdmi_dais = NULL;
struct hdac_ext_link *hlink = NULL;
int num_dais = 0;
int ret = 0;
/* hold the ref while we probe */
hlink = snd_hdac_ext_bus_get_link(edev->ebus, dev_name(&edev->hdac.dev));
snd_hdac_ext_bus_link_get(edev->ebus, hlink);
hdmi_priv = devm_kzalloc(&codec->dev, sizeof(*hdmi_priv), GFP_KERNEL);
if (hdmi_priv == NULL)
return -ENOMEM;
@ -1516,8 +1529,12 @@ static int hdac_hdmi_dev_probe(struct hdac_ext_device *edev)
}
/* ASoC specific initialization */
return snd_soc_register_codec(&codec->dev, &hdmi_hda_codec,
hdmi_dais, num_dais);
ret = snd_soc_register_codec(&codec->dev, &hdmi_hda_codec,
hdmi_dais, num_dais);
snd_hdac_ext_bus_link_put(edev->ebus, hlink);
return ret;
}
static int hdac_hdmi_dev_remove(struct hdac_ext_device *edev)
@ -1556,6 +1573,9 @@ static int hdac_hdmi_runtime_suspend(struct device *dev)
struct hdac_ext_device *edev = to_hda_ext_device(dev);
struct hdac_device *hdac = &edev->hdac;
struct hdac_bus *bus = hdac->bus;
unsigned long timeout;
struct hdac_ext_bus *ebus = hbus_to_ebus(bus);
struct hdac_ext_link *hlink = NULL;
int err;
dev_dbg(dev, "Enter: %s\n", __func__);
@ -1579,6 +1599,9 @@ static int hdac_hdmi_runtime_suspend(struct device *dev)
return err;
}
hlink = snd_hdac_ext_bus_get_link(ebus, dev_name(dev));
snd_hdac_ext_bus_link_put(ebus, hlink);
return 0;
}
@ -1587,6 +1610,8 @@ static int hdac_hdmi_runtime_resume(struct device *dev)
struct hdac_ext_device *edev = to_hda_ext_device(dev);
struct hdac_device *hdac = &edev->hdac;
struct hdac_bus *bus = hdac->bus;
struct hdac_ext_bus *ebus = hbus_to_ebus(bus);
struct hdac_ext_link *hlink = NULL;
int err;
dev_dbg(dev, "Enter: %s\n", __func__);
@ -1595,6 +1620,9 @@ static int hdac_hdmi_runtime_resume(struct device *dev)
if (!bus)
return 0;
hlink = snd_hdac_ext_bus_get_link(ebus, dev_name(dev));
snd_hdac_ext_bus_link_get(ebus, hlink);
err = snd_hdac_display_power(bus, true);
if (err < 0) {
dev_err(bus->dev, "Cannot turn on display power on i915\n");