ALSA: hda/tas2781: Update tas2781 hda SPI driver

JIRA: https://issues.redhat.com/browse/RHEL-81723

commit 2afd96a
Author: Baojun Xu <baojun.xu@ti.com>
Date:   Tue Feb 11 16:39:41 2025 +0800

    ALSA: hda/tas2781: Update tas2781 hda SPI driver

    Because firmware issue of platform, found spi device is not stable,
    so add status check before firmware download, and remove some
    operations which is not must in current stage.

    Signed-off-by: Baojun Xu <baojun.xu@ti.com>
    Fixes: bb5f86e ("ALSA: hda/tas2781: Add tas2781 hda SPI driver")
    Link: https://patch.msgid.link/20250211083941.5574-1-baojun.xu@ti.com
    Signed-off-by: Takashi Iwai <tiwai@suse.de>

Signed-off-by: CKI Backport Bot <cki-ci-bot+cki-gitlab-backport-bot@redhat.com>

Author: CKI Backport Bot

sound/pci/hda/tas2781_hda_spi.c

@@ -912,7 +912,7 @@ static void tasdev_fw_ready(const struct firmware *fmw, void *context)
 	struct tasdevice_priv *tas_priv = context;
 	struct tas2781_hda *tas_hda = dev_get_drvdata(tas_priv->dev);
 	struct hda_codec *codec = tas_priv->codec;
-	int i, j, ret;
+	int i, j, ret, val;
 
 	pm_runtime_get_sync(tas_priv->dev);
 	guard(mutex)(&tas_priv->codec_lock);
@@ -981,13 +981,16 @@ static void tasdev_fw_ready(const struct firmware *fmw, void *context)
 
 	/* Perform AMP reset before firmware download. */
 	tas_priv->rcabin.profile_cfg_id = TAS2781_PRE_POST_RESET_CFG;
-	tasdevice_spi_tuning_switch(tas_priv, 0);
 	tas2781_spi_reset(tas_priv);
 	tas_priv->rcabin.profile_cfg_id = 0;
-	tasdevice_spi_tuning_switch(tas_priv, 1);
 
 	tas_priv->fw_state = TASDEVICE_DSP_FW_ALL_OK;
-	ret = tasdevice_spi_prmg_load(tas_priv, 0);
+	ret = tasdevice_spi_dev_read(tas_priv, TAS2781_REG_CLK_CONFIG, &val);
+	if (ret < 0)
+		goto out;
+
+	if (val == TAS2781_REG_CLK_CONFIG_RESET)
+		ret = tasdevice_spi_prmg_load(tas_priv, 0);
 	if (ret < 0) {
 		dev_err(tas_priv->dev, "FW download failed = %d\n", ret);
 		goto out;
@@ -1001,7 +1004,6 @@ static void tasdev_fw_ready(const struct firmware *fmw, void *context)
 	 * If calibrated data occurs error, dsp will still works with default
 	 * calibrated data inside algo.
 	 */
-	tas_priv->save_calibration(tas_priv);
 
 out:
 	if (fmw)
@@ -1160,7 +1162,8 @@ static int tas2781_runtime_suspend(struct device *dev)
 
 	guard(mutex)(&tas_hda->priv->codec_lock);
 
-	tasdevice_spi_tuning_switch(tas_hda->priv, 1);
+	if (tas_hda->priv->playback_started)
+		tasdevice_spi_tuning_switch(tas_hda->priv, 1);
 
 	tas_hda->priv->cur_book = -1;
 	tas_hda->priv->cur_conf = -1;
@@ -1174,7 +1177,8 @@ static int tas2781_runtime_resume(struct device *dev)
 
 	guard(mutex)(&tas_hda->priv->codec_lock);
 
-	tasdevice_spi_tuning_switch(tas_hda->priv, 0);
+	if (tas_hda->priv->playback_started)
+		tasdevice_spi_tuning_switch(tas_hda->priv, 0);
 
 	return 0;
 }
@@ -1189,12 +1193,9 @@ static int tas2781_system_suspend(struct device *dev)
 		return ret;
 
 	/* Shutdown chip before system suspend */
-	tasdevice_spi_tuning_switch(tas_hda->priv, 1);
-	tas2781_spi_reset(tas_hda->priv);
-	/*
-	 * Reset GPIO may be shared, so cannot reset here.
-	 * However beyond this point, amps may be powered down.
-	 */
+	if (tas_hda->priv->playback_started)
+		tasdevice_spi_tuning_switch(tas_hda->priv, 1);
+
 	return 0;
 }