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asoc: codecs: Update LPM voting support in codec supplies

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For power saving during RBSC, need to vote for minimum
or zero current on load for respective regulator to
enter LPM mode. Add required support from audio WCD/WSA
to vote accordingly during suspend/resume.

Change-Id: I578195b84ba18a0b69dde3b93a3f6461efa85f7f
Signed-off-by: Laxminath Kasam <lkasam@codeaurora.org>
This commit is contained in:
Laxminath Kasam
2020-04-29 17:57:00 +05:30
parent 127718f3d9
commit ec8a0b507c
6 changed files with 182 additions and 7 deletions
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48
asoc/codecs/wsa883x/wsa883x.c
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@@ -132,6 +132,7 @@ enum {
enum {
SPKR_STATUS = 0,
WSA_SUPPLIES_LPM_MODE,
};
enum {
@@ -1220,6 +1221,28 @@ static void wsa883x_codec_remove(struct snd_soc_component *component)
return;
}
static int wsa883x_soc_codec_suspend(struct snd_soc_component *component)
{
struct wsa883x_priv *wsa883x = snd_soc_component_get_drvdata(component);
if (!wsa883x)
return 0;
wsa883x->dapm_bias_off = true;
return 0;
}
static int wsa883x_soc_codec_resume(struct snd_soc_component *component)
{
struct wsa883x_priv *wsa883x = snd_soc_component_get_drvdata(component);
if (!wsa883x)
return 0;
wsa883x->dapm_bias_off = false;
return 0;
}
static const struct snd_soc_component_driver soc_codec_dev_wsa883x_wsa = {
.name = "",
.probe = wsa883x_codec_probe,
@@ -1230,6 +1253,8 @@ static const struct snd_soc_component_driver soc_codec_dev_wsa883x_wsa = {
.num_dapm_widgets = ARRAY_SIZE(wsa883x_dapm_widgets),
.dapm_routes = wsa883x_audio_map,
.num_dapm_routes = ARRAY_SIZE(wsa883x_audio_map),
.suspend = wsa883x_soc_codec_suspend,
.resume = wsa883x_soc_codec_resume,
};
static int wsa883x_gpio_ctrl(struct wsa883x_priv *wsa883x, bool enable)
@@ -1692,7 +1717,20 @@ static int wsa883x_swr_remove(struct swr_device *pdev)
#ifdef CONFIG_PM_SLEEP
static int wsa883x_swr_suspend(struct device *dev)
{
struct wsa883x_priv *wsa883x = swr_get_dev_data(to_swr_device(dev));
if (!wsa883x) {
dev_err(dev, "%s: wsa883x private data is NULL\n", __func__);
return -EINVAL;
}
dev_dbg(dev, "%s: system suspend\n", __func__);
if (wsa883x->dapm_bias_off) {
msm_cdc_set_supplies_lpm_mode(dev, wsa883x->supplies,
wsa883x->regulator,
wsa883x->num_supplies,
true);
set_bit(WSA_SUPPLIES_LPM_MODE, &wsa883x->status_mask);
}
return 0;
}
@@ -1704,13 +1742,21 @@ static int wsa883x_swr_resume(struct device *dev)
dev_err(dev, "%s: wsa883x private data is NULL\n", __func__);
return -EINVAL;
}
if (test_bit(WSA_SUPPLIES_LPM_MODE, &wsa883x->status_mask)) {
msm_cdc_set_supplies_lpm_mode(dev, wsa883x->supplies,
wsa883x->regulator,
wsa883x->num_supplies,
false);
clear_bit(WSA_SUPPLIES_LPM_MODE, &wsa883x->status_mask);
}
dev_dbg(dev, "%s: system resume\n", __func__);
return 0;
}
#endif /* CONFIG_PM_SLEEP */
static const struct dev_pm_ops wsa883x_swr_pm_ops = {
SET_SYSTEM_SLEEP_PM_OPS(wsa883x_swr_suspend, wsa883x_swr_resume)
.suspend_late = wsa883x_swr_suspend,
.resume_early = wsa883x_swr_resume,
};
static const struct swr_device_id wsa883x_swr_id[] = {