ASoC: cs35l56: Remove redundant dsp_ready_completion

dsp_ready_completion is redundant and can be replaced by a call
flush_work() to wait for cs35l56_dsp_work() to complete.

As the dsp_work is queued by component_probe() it must run before other
ASoC component callbacks and therefore there is no risk of calling
flush_work() before the dsp_work() has been queued.

Signed-off-by: Simon Trimmer <simont@opensource.cirrus.com>
Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20230414133753.653139-5-rf@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/sound/soc/codecs/cs35l56.c b/sound/soc/codecs/cs35l56.c
index ab2e663..5f66a8e 100644 (file)
--- a/sound/soc/codecs/cs35l56.c
+++ b/sound/soc/codecs/cs35l56.c
@@ -51,21 +51,10 @@ static int cs35l56_mbox_send(struct cs35l56_private *cs35l56, unsigned int comma
        return 0;
 }
 
-static int cs35l56_wait_dsp_ready(struct cs35l56_private *cs35l56)
+static void cs35l56_wait_dsp_ready(struct cs35l56_private *cs35l56)
 {
-       int ret;
-
-       if (!cs35l56->fw_patched) {
-               /* block until firmware download completes */
-               ret = wait_for_completion_timeout(&cs35l56->dsp_ready_completion,
-                                                 msecs_to_jiffies(25000));
-               if (!ret) {
-                       dev_err(cs35l56->dev, "dsp_ready_completion timeout\n");
-                       return -ETIMEDOUT;
-               }
-       }
-
-       return 0;
+       /* Wait for patching to complete */
+       flush_work(&cs35l56->dsp_work);
 }
 
 static int cs35l56_dspwait_get_volsw(struct snd_kcontrol *kcontrol,
@@ -73,11 +62,8 @@ static int cs35l56_dspwait_get_volsw(struct snd_kcontrol *kcontrol,
 {
        struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
        struct cs35l56_private *cs35l56 = snd_soc_component_get_drvdata(component);
-       int ret = cs35l56_wait_dsp_ready(cs35l56);
-
-       if (ret)
-               return ret;
 
+       cs35l56_wait_dsp_ready(cs35l56);
        return snd_soc_get_volsw(kcontrol, ucontrol);
 }
 
@@ -86,11 +72,8 @@ static int cs35l56_dspwait_put_volsw(struct snd_kcontrol *kcontrol,
 {
        struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
        struct cs35l56_private *cs35l56 = snd_soc_component_get_drvdata(component);
-       int ret = cs35l56_wait_dsp_ready(cs35l56);
-
-       if (ret)
-               return ret;
 
+       cs35l56_wait_dsp_ready(cs35l56);
        return snd_soc_put_volsw(kcontrol, ucontrol);
 }
 
@@ -876,13 +859,13 @@ static void cs35l56_dsp_work(struct work_struct *work)
        int ret = 0;
 
        if (!cs35l56->init_done)
-               goto complete;
+               return;
 
        cs35l56->dsp.part = devm_kasprintf(cs35l56->dev, GFP_KERNEL, "cs35l56%s-%02x",
                                           cs35l56->secured ? "s" : "", cs35l56->rev);
 
        if (!cs35l56->dsp.part)
-               goto complete;
+               return;
 
        pm_runtime_get_sync(cs35l56->dev);
 
@@ -961,9 +944,6 @@ err:
                sdw_write_no_pm(cs35l56->sdw_peripheral, CS35L56_SDW_GEN_INT_MASK_1,
                                CS35L56_SDW_INT_MASK_CODEC_IRQ);
        }
-
-complete:
-       complete_all(&cs35l56->dsp_ready_completion);
 }
 
 static int cs35l56_component_probe(struct snd_soc_component *component)
@@ -1002,7 +982,6 @@ static int cs35l56_set_bias_level(struct snd_soc_component *component,
                                  enum snd_soc_bias_level level)
 {
        struct cs35l56_private *cs35l56 = snd_soc_component_get_drvdata(component);
-       int ret = 0;
 
        switch (level) {
        case SND_SOC_BIAS_STANDBY:
@@ -1011,14 +990,14 @@ static int cs35l56_set_bias_level(struct snd_soc_component *component,
                 * BIAS_OFF to BIAS_STANDBY
                 */
                if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_OFF)
-                       ret = cs35l56_wait_dsp_ready(cs35l56);
+                       cs35l56_wait_dsp_ready(cs35l56);
 
                break;
        default:
                break;
        }
 
-       return ret;
+       return 0;
 }
 
 static const struct snd_soc_component_driver soc_component_dev_cs35l56 = {
@@ -1336,7 +1315,6 @@ int cs35l56_system_resume(struct device *dev)
                return ret;
 
        cs35l56->fw_patched = false;
-       init_completion(&cs35l56->dsp_ready_completion);
        queue_work(cs35l56->dsp_wq, &cs35l56->dsp_work);
 
        /*
@@ -1358,7 +1336,6 @@ static int cs35l56_dsp_init(struct cs35l56_private *cs35l56)
                return -ENOMEM;
 
        INIT_WORK(&cs35l56->dsp_work, cs35l56_dsp_work);
-       init_completion(&cs35l56->dsp_ready_completion);
 
        dsp = &cs35l56->dsp;
        dsp->part = "cs35l56";

diff --git a/sound/soc/codecs/cs35l56.h b/sound/soc/codecs/cs35l56.h
index ac2e923..09762e7 100644 (file)
--- a/sound/soc/codecs/cs35l56.h
+++ b/sound/soc/codecs/cs35l56.h
@@ -34,7 +34,6 @@ struct cs35l56_private {
        struct wm_adsp dsp; /* must be first member */
        struct work_struct dsp_work;
        struct workqueue_struct *dsp_wq;
-       struct completion dsp_ready_completion;
        struct mutex irq_lock;
        struct snd_soc_component *component;
        struct device *dev;