[PATCH v2 06/11] ALSA: hda: cs35l41: Move Play and Pause into separate functions

Stefan Binding
2023-07-21T15:20:12Z

This allows play and pause to be called from multiple places,
which is necessary for system suspend and resume.

Signed-off-by: Stefan Binding <sbinding@opensource.cirrus.com>
---
sound/pci/hda/cs35l41_hda.c | 131 ++++++++++++++++++++++--------------
1 file changed, 79 insertions(+), 52 deletions(-)

diff --git a/sound/pci/hda/cs35l41_hda.c b/sound/pci/hda/cs35l41_hda.c
index d4a11f7b5dbd1..f77583b46b6b0 100644
--- a/sound/pci/hda/cs35l41_hda.c
+++ b/sound/pci/hda/cs35l41_hda.c
@@ -483,63 +483,103 @@ static void cs35l41_irq_release(struct cs35l41_hda *cs35l41)
cs35l41->irq_errors = 0;
}

-static void cs35l41_hda_playback_hook(struct device *dev, int action)
+static void cs35l41_hda_play_start(struct device *dev)
{
struct cs35l41_hda *cs35l41 = dev_get_drvdata(dev);
struct regmap *reg = cs35l41->regmap;
- int ret = 0;
+
+ dev_dbg(dev, "Play (Start)\n");
+
+ if (cs35l41->playback_started) {
+ dev_dbg(dev, "Playback already started.");
+ return;
+ }
+
+ cs35l41->playback_started = true;
+
+ if (cs35l41->firmware_running) {
+ regmap_multi_reg_write(reg, cs35l41_hda_config_dsp,
+ ARRAY_SIZE(cs35l41_hda_config_dsp));
+ regmap_update_bits(reg, CS35L41_PWR_CTRL2,
+ CS35L41_VMON_EN_MASK | CS35L41_IMON_EN_MASK,
+ 1 << CS35L41_VMON_EN_SHIFT | 1 << CS35L41_IMON_EN_SHIFT);
+ cs35l41_set_cspl_mbox_cmd(cs35l41->dev, reg, CSPL_MBOX_CMD_RESUME);
+ } else {
+ regmap_multi_reg_write(reg, cs35l41_hda_config, ARRAY_SIZE(cs35l41_hda_config));
+ }
+ regmap_update_bits(reg, CS35L41_PWR_CTRL2, CS35L41_AMP_EN_MASK, 1 << CS35L41_AMP_EN_SHIFT);
+ if (cs35l41->hw_cfg.bst_type == CS35L41_EXT_BOOST)
+ regmap_write(reg, CS35L41_GPIO1_CTRL1, 0x00008001);
+
+}
+
+static void cs35l41_hda_play_done(struct device *dev)
+{
+ struct cs35l41_hda *cs35l41 = dev_get_drvdata(dev);
+ struct regmap *reg = cs35l41->regmap;
+
+ dev_dbg(dev, "Play (Complete)\n");
+
+ cs35l41_global_enable(dev, reg, cs35l41->hw_cfg.bst_type, 1, NULL,
+ cs35l41->firmware_running);
+}
+
+static void cs35l41_hda_pause_start(struct device *dev)
+{
+ struct cs35l41_hda *cs35l41 = dev_get_drvdata(dev);
+ struct regmap *reg = cs35l41->regmap;
+
+ dev_dbg(dev, "Pause (Start)\n");
+
+ regmap_multi_reg_write(reg, cs35l41_hda_mute, ARRAY_SIZE(cs35l41_hda_mute));
+ cs35l41_global_enable(dev, reg, cs35l41->hw_cfg.bst_type, 0, NULL,
+ cs35l41->firmware_running);
+}
+
+static void cs35l41_hda_pause_done(struct device *dev)
+{
+ struct cs35l41_hda *cs35l41 = dev_get_drvdata(dev);
+ struct regmap *reg = cs35l41->regmap;
+
+ dev_dbg(dev, "Pause (Complete)\n");
+
+ regmap_update_bits(reg, CS35L41_PWR_CTRL2, CS35L41_AMP_EN_MASK, 0 << CS35L41_AMP_EN_SHIFT);
+ if (cs35l41->hw_cfg.bst_type == CS35L41_EXT_BOOST)
+ regmap_write(reg, CS35L41_GPIO1_CTRL1, 0x00000001);
+ if (cs35l41->firmware_running) {
+ cs35l41_set_cspl_mbox_cmd(dev, reg, CSPL_MBOX_CMD_PAUSE);
+ regmap_update_bits(reg, CS35L41_PWR_CTRL2,
+ CS35L41_VMON_EN_MASK | CS35L41_IMON_EN_MASK,
+ 0 << CS35L41_VMON_EN_SHIFT | 0 << CS35L41_IMON_EN_SHIFT);
+ }
+ cs35l41_irq_release(cs35l41);
+ cs35l41->playback_started = false;
+}
+
+static void cs35l41_hda_playback_hook(struct device *dev, int action)
+{
+ struct cs35l41_hda *cs35l41 = dev_get_drvdata(dev);

switch (action) {
case HDA_GEN_PCM_ACT_OPEN:
pm_runtime_get_sync(dev);
mutex_lock(&cs35l41->fw_mutex);
- cs35l41->playback_started = true;
- if (cs35l41->firmware_running) {
- regmap_multi_reg_write(reg, cs35l41_hda_config_dsp,
- ARRAY_SIZE(cs35l41_hda_config_dsp));
- regmap_update_bits(cs35l41->regmap, CS35L41_PWR_CTRL2,
- CS35L41_VMON_EN_MASK | CS35L41_IMON_EN_MASK,
- 1 << CS35L41_VMON_EN_SHIFT | 1 << CS35L41_IMON_EN_SHIFT);
- cs35l41_set_cspl_mbox_cmd(cs35l41->dev, cs35l41->regmap,
- CSPL_MBOX_CMD_RESUME);
- } else {
- regmap_multi_reg_write(reg, cs35l41_hda_config,
- ARRAY_SIZE(cs35l41_hda_config));
- }
- ret = regmap_update_bits(reg, CS35L41_PWR_CTRL2,
- CS35L41_AMP_EN_MASK, 1 << CS35L41_AMP_EN_SHIFT);
- if (cs35l41->hw_cfg.bst_type == CS35L41_EXT_BOOST)
- regmap_write(reg, CS35L41_GPIO1_CTRL1, 0x00008001);
+ cs35l41_hda_play_start(dev);
mutex_unlock(&cs35l41->fw_mutex);
break;
case HDA_GEN_PCM_ACT_PREPARE:
mutex_lock(&cs35l41->fw_mutex);
- ret = cs35l41_global_enable(dev, reg, cs35l41->hw_cfg.bst_type, 1, NULL,
- cs35l41->firmware_running);
+ cs35l41_hda_play_done(dev);
mutex_unlock(&cs35l41->fw_mutex);
break;
case HDA_GEN_PCM_ACT_CLEANUP:
mutex_lock(&cs35l41->fw_mutex);
- regmap_multi_reg_write(reg, cs35l41_hda_mute, ARRAY_SIZE(cs35l41_hda_mute));
- ret = cs35l41_global_enable(dev, reg, cs35l41->hw_cfg.bst_type, 0, NULL,
- cs35l41->firmware_running);
+ cs35l41_hda_pause_start(dev);
mutex_unlock(&cs35l41->fw_mutex);
break;
case HDA_GEN_PCM_ACT_CLOSE:
mutex_lock(&cs35l41->fw_mutex);
- ret = regmap_update_bits(reg, CS35L41_PWR_CTRL2,
- CS35L41_AMP_EN_MASK, 0 << CS35L41_AMP_EN_SHIFT);
- if (cs35l41->hw_cfg.bst_type == CS35L41_EXT_BOOST)
- regmap_write(reg, CS35L41_GPIO1_CTRL1, 0x00000001);
- if (cs35l41->firmware_running) {
- cs35l41_set_cspl_mbox_cmd(cs35l41->dev, cs35l41->regmap,
- CSPL_MBOX_CMD_PAUSE);
- regmap_update_bits(cs35l41->regmap, CS35L41_PWR_CTRL2,
- CS35L41_VMON_EN_MASK | CS35L41_IMON_EN_MASK,
- 0 << CS35L41_VMON_EN_SHIFT | 0 << CS35L41_IMON_EN_SHIFT);
- }
- cs35l41_irq_release(cs35l41);
- cs35l41->playback_started = false;
+ cs35l41_hda_pause_done(dev);
mutex_unlock(&cs35l41->fw_mutex);

pm_runtime_mark_last_busy(dev);
@@ -549,9 +589,6 @@ static void cs35l41_hda_playback_hook(struct device *dev, int action)
dev_warn(cs35l41->dev, "Playback action not supported: %d\n", action);
break;
}
-
- if (ret)
- dev_err(cs35l41->dev, "Regmap access fail: %d\n", ret);
}

static int cs35l41_hda_channel_map(struct device *dev, unsigned int tx_num, unsigned int *tx_slot,
@@ -703,18 +740,8 @@ static int cs35l41_runtime_suspend(struct device *dev)
mutex_lock(&cs35l41->fw_mutex);

if (cs35l41->playback_started) {
- regmap_multi_reg_write(cs35l41->regmap, cs35l41_hda_mute,
- ARRAY_SIZE(cs35l41_hda_mute));
- cs35l41_global_enable(cs35l41->dev, cs35l41->regmap, cs35l41->hw_cfg.bst_type, 0,
- NULL, cs35l41->firmware_running);
- regmap_update_bits(cs35l41->regmap, CS35L41_PWR_CTRL2,
- CS35L41_AMP_EN_MASK, 0 << CS35L41_AMP_EN_SHIFT);
- if (cs35l41->hw_cfg.bst_type == CS35L41_EXT_BOOST)
- regmap_write(cs35l41->regmap, CS35L41_GPIO1_CTRL1, 0x00000001);
- regmap_update_bits(cs35l41->regmap, CS35L41_PWR_CTRL2,
- CS35L41_VMON_EN_MASK | CS35L41_IMON_EN_MASK,
- 0 << CS35L41_VMON_EN_SHIFT | 0 << CS35L41_IMON_EN_SHIFT);
- cs35l41->playback_started = false;
+ cs35l41_hda_pause_start(dev);
+ cs35l41_hda_pause_done(dev);
}

if (cs35l41->firmware_running) {
--
2.34.1