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ALSA: hda: Make snd_hdac_display_power() void function

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After the recent refactoring, snd_hdac_display_power() doesn't return
any error, hence it can be defined to return void.
This makes many error checks redundant and allows us to reduce them
gracefully.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2018-12-09 10:04:25 +01:00
parent 457f3c86d3
commit 4f799e7340
5 changed files with 23 additions and 66 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
include/sound/hda_component.h
View File

@ -12,8 +12,8 @@
#ifdef CONFIG_SND_HDA_COMPONENT
int snd_hdac_set_codec_wakeup(struct hdac_bus *bus, bool enable);
int snd_hdac_display_power(struct hdac_bus *bus, unsigned int idx,
bool enable);
void snd_hdac_display_power(struct hdac_bus *bus, unsigned int idx,
bool enable);
int snd_hdac_sync_audio_rate(struct hdac_device *codec, hda_nid_t nid,
int dev_id, int rate);
int snd_hdac_acomp_get_eld(struct hdac_device *codec, hda_nid_t nid, int dev_id,
@ -30,10 +30,9 @@ static inline int snd_hdac_set_codec_wakeup(struct hdac_bus *bus, bool enable)
{
return 0;
}
static inline int snd_hdac_display_power(struct hdac_bus *bus,
unsigned int idx, bool enable)
static inline void snd_hdac_display_power(struct hdac_bus *bus,
unsigned int idx, bool enable)
{
return 0;
}
static inline int snd_hdac_sync_audio_rate(struct hdac_device *codec,
hda_nid_t nid, int dev_id, int rate)

8
sound/hda/hdac_component.c
View File

@ -62,10 +62,8 @@ EXPORT_SYMBOL_GPL(snd_hdac_set_codec_wakeup);
*
* This function updates the power status, and calls the get_power() and
* put_power() ops accordingly, toggling the codec wakeup, too.
*
* Returns zero for success or a negative error code.
*/
int snd_hdac_display_power(struct hdac_bus *bus, unsigned int idx, bool enable)
void snd_hdac_display_power(struct hdac_bus *bus, unsigned int idx, bool enable)
{
struct drm_audio_component *acomp = bus->audio_component;
@ -77,7 +75,7 @@ int snd_hdac_display_power(struct hdac_bus *bus, unsigned int idx, bool enable)
clear_bit(idx, &bus->display_power_status);
if (!acomp || !acomp->ops)
return 0;
return;
if (bus->display_power_status) {
if (!bus->display_power_active) {
@ -94,8 +92,6 @@ int snd_hdac_display_power(struct hdac_bus *bus, unsigned int idx, bool enable)
bus->display_power_active = false;
}
}
return 0;
}
EXPORT_SYMBOL_GPL(snd_hdac_display_power);

9
sound/pci/hda/hda_intel.c
View File

@ -2216,12 +2216,7 @@ static int azx_probe_continue(struct azx *chip)
* this power. For other platforms, like Baytrail/Braswell, only the
* display codec needs the power and it can be released after probe.
*/
err = display_power(chip, true);
if (err < 0) {
dev_err(chip->card->dev,
"Cannot turn on display power on i915\n");
goto i915_power_fail;
}
display_power(chip, true);
err = azx_first_init(chip);
if (err < 0)
@ -2271,8 +2266,6 @@ static int azx_probe_continue(struct azx *chip)
out_free:
if (err < 0 || !hda->need_i915_power)
display_power(chip, false);
i915_power_fail:
if (err < 0)
hda->init_failed = 1;
complete_all(&hda->probe_wait);

23
sound/soc/codecs/hdac_hdmi.c
View File

@ -2031,13 +2031,8 @@ static int hdac_hdmi_dev_probe(struct hdac_device *hdev)
* Turned off in the runtime_suspend during the first explicit
* pm_runtime_suspend call.
*/
ret = snd_hdac_display_power(hdev->bus, hdev->addr, true);
if (ret < 0) {
dev_err(&hdev->dev,
"Cannot turn on display power on i915 err: %d\n",
ret);
return ret;
}
snd_hdac_display_power(hdev->bus, hdev->addr, true);
ret = hdac_hdmi_parse_and_map_nid(hdev, &hdmi_dais, &num_dais);
if (ret < 0) {
dev_err(&hdev->dev,
@ -2169,7 +2164,6 @@ static int hdac_hdmi_runtime_suspend(struct device *dev)
struct hdac_device *hdev = dev_to_hdac_dev(dev);
struct hdac_bus *bus = hdev->bus;
struct hdac_ext_link *hlink = NULL;
int err;
dev_dbg(dev, "Enter: %s\n", __func__);
@ -2195,11 +2189,9 @@ static int hdac_hdmi_runtime_suspend(struct device *dev)
snd_hdac_ext_bus_link_put(bus, hlink);
err = snd_hdac_display_power(bus, hdev->addr, false);
if (err < 0)
dev_err(dev, "Cannot turn off display power on i915\n");
snd_hdac_display_power(bus, hdev->addr, false);
return err;
return 0;
}
static int hdac_hdmi_runtime_resume(struct device *dev)
@ -2207,7 +2199,6 @@ static int hdac_hdmi_runtime_resume(struct device *dev)
struct hdac_device *hdev = dev_to_hdac_dev(dev);
struct hdac_bus *bus = hdev->bus;
struct hdac_ext_link *hlink = NULL;
int err;
dev_dbg(dev, "Enter: %s\n", __func__);
@ -2223,11 +2214,7 @@ static int hdac_hdmi_runtime_resume(struct device *dev)
snd_hdac_ext_bus_link_get(bus, hlink);
err = snd_hdac_display_power(bus, hdev->addr, true);
if (err < 0) {
dev_err(dev, "Cannot turn on display power on i915\n");
return err;
}
snd_hdac_display_power(bus, hdev->addr, true);
hdac_hdmi_skl_enable_all_pins(hdev);
hdac_hdmi_skl_enable_dp12(hdev);

40
sound/soc/intel/skylake/skl.c
View File

@ -311,7 +311,7 @@ static int skl_suspend(struct device *dev)
struct pci_dev *pci = to_pci_dev(dev);
struct hdac_bus *bus = pci_get_drvdata(pci);
struct skl *skl = bus_to_skl(bus);
int ret = 0;
int ret;
/*
* Do not suspend if streams which are marked ignore suspend are
@ -333,14 +333,10 @@ static int skl_suspend(struct device *dev)
skl->skl_sst->fw_loaded = false;
}
if (IS_ENABLED(CONFIG_SND_SOC_HDAC_HDMI)) {
ret = snd_hdac_display_power(bus, HDA_CODEC_IDX_CONTROLLER, false);
if (ret < 0)
dev_err(bus->dev,
"Cannot turn OFF display power on i915\n");
}
if (IS_ENABLED(CONFIG_SND_SOC_HDAC_HDMI))
snd_hdac_display_power(bus, HDA_CODEC_IDX_CONTROLLER, false);
return ret;
return 0;
}
static int skl_resume(struct device *dev)
@ -352,14 +348,8 @@ static int skl_resume(struct device *dev)
int ret;
/* Turned OFF in HDMI codec driver after codec reconfiguration */
if (IS_ENABLED(CONFIG_SND_SOC_HDAC_HDMI)) {
ret = snd_hdac_display_power(bus, HDA_CODEC_IDX_CONTROLLER, true);
if (ret < 0) {
dev_err(bus->dev,
"Cannot turn on display power on i915\n");
return ret;
}
}
if (IS_ENABLED(CONFIG_SND_SOC_HDAC_HDMI))
snd_hdac_display_power(bus, HDA_CODEC_IDX_CONTROLLER, true);
/*
* resume only when we are not in suspend active, otherwise need to
@ -783,11 +773,9 @@ static int skl_i915_init(struct hdac_bus *bus)
if (err < 0)
return err;
err = snd_hdac_display_power(bus, HDA_CODEC_IDX_CONTROLLER, true);
if (err < 0)
dev_err(bus->dev, "Cannot turn on display power on i915\n");
snd_hdac_display_power(bus, HDA_CODEC_IDX_CONTROLLER, true);
return err;
return 0;
}
static void skl_probe_work(struct work_struct *work)
@ -837,14 +825,8 @@ static void skl_probe_work(struct work_struct *work)
list_for_each_entry(hlink, &bus->hlink_list, list)
snd_hdac_ext_bus_link_put(bus, hlink);
if (IS_ENABLED(CONFIG_SND_SOC_HDAC_HDMI)) {
err = snd_hdac_display_power(bus, HDA_CODEC_IDX_CONTROLLER, false);
if (err < 0) {
dev_err(bus->dev, "Cannot turn off display power on i915\n");
skl_machine_device_unregister(skl);
return;
}
}
if (IS_ENABLED(CONFIG_SND_SOC_HDAC_HDMI))
snd_hdac_display_power(bus, HDA_CODEC_IDX_CONTROLLER, false);
/* configure PM */
pm_runtime_put_noidle(bus->dev);
@ -855,7 +837,7 @@ static void skl_probe_work(struct work_struct *work)
out_err:
if (IS_ENABLED(CONFIG_SND_SOC_HDAC_HDMI))
err = snd_hdac_display_power(bus, HDA_CODEC_IDX_CONTROLLER, false);
snd_hdac_display_power(bus, HDA_CODEC_IDX_CONTROLLER, false);
}
/*