ASoC: cs35l56: Log tuning unique identifiers during firmware load

The cs35l56 smart amplifier has some informational firmware controls
that are populated by a tuning bin file to unique values - logging these
during firmware load identifies the specific configuration being used on
that device instance.

Signed-off-by: Simon Trimmer <simont@opensource.cirrus.com>
Link: https://patch.msgid.link/47762a5f1ce2b178ad863c6698296aea09b72e10.1747142267.git.simont@opensource.cirrus.com
Acked-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@kernel.org>

Author: simontrimmer

include/sound/cs35l56.h

@@ -332,6 +332,7 @@ void cs35l56_init_cs_dsp(struct cs35l56_base *cs35l56_base, struct cs_dsp *cs_ds
 int cs35l56_get_calibration(struct cs35l56_base *cs35l56_base);
 int cs35l56_read_prot_status(struct cs35l56_base *cs35l56_base,
 			     bool *fw_missing, unsigned int *fw_version);
+void cs35l56_log_tuning(struct cs35l56_base *cs35l56_base, struct cs_dsp *cs_dsp);
 int cs35l56_hw_init(struct cs35l56_base *cs35l56_base);
 int cs35l56_get_speaker_id(struct cs35l56_base *cs35l56_base);
 int cs35l56_get_bclk_freq_id(unsigned int freq);

sound/soc/codecs/cs35l56-shared.c

@@ -770,6 +770,33 @@ int cs35l56_read_prot_status(struct cs35l56_base *cs35l56_base,
 }
 EXPORT_SYMBOL_NS_GPL(cs35l56_read_prot_status, "SND_SOC_CS35L56_SHARED");
 
+void cs35l56_log_tuning(struct cs35l56_base *cs35l56_base, struct cs_dsp *cs_dsp)
+{
+	__be32 pid, sid, tid;
+	int ret;
+
+	scoped_guard(mutex, &cs_dsp->pwr_lock) {
+		ret = cs_dsp_coeff_read_ctrl(cs_dsp_get_ctl(cs_dsp, "AS_PRJCT_ID",
+							    WMFW_ADSP2_XM, 0x9f212),
+					     0, &pid, sizeof(pid));
+		if (!ret)
+			ret = cs_dsp_coeff_read_ctrl(cs_dsp_get_ctl(cs_dsp, "AS_CHNNL_ID",
+								    WMFW_ADSP2_XM, 0x9f212),
+						     0, &sid, sizeof(sid));
+		if (!ret)
+			ret = cs_dsp_coeff_read_ctrl(cs_dsp_get_ctl(cs_dsp, "AS_SNPSHT_ID",
+								    WMFW_ADSP2_XM, 0x9f212),
+						     0, &tid, sizeof(tid));
+	}
+
+	if (ret)
+		dev_warn(cs35l56_base->dev, "Can't read tuning IDs");
+	else
+		dev_info(cs35l56_base->dev, "Tuning PID: %#x, SID: %#x, TID: %#x\n",
+			 be32_to_cpu(pid), be32_to_cpu(sid), be32_to_cpu(tid));
+}
+EXPORT_SYMBOL_NS_GPL(cs35l56_log_tuning, "SND_SOC_CS35L56_SHARED");
+
 int cs35l56_hw_init(struct cs35l56_base *cs35l56_base)
 {
 	int ret;
@@ -1050,3 +1077,4 @@ MODULE_AUTHOR("Richard Fitzgerald <rf@opensource.cirrus.com>");
 MODULE_AUTHOR("Simon Trimmer <simont@opensource.cirrus.com>");
 MODULE_LICENSE("GPL");
 MODULE_IMPORT_NS("SND_SOC_CS_AMP_LIB");
+MODULE_IMPORT_NS("FW_CS_DSP");

sound/soc/codecs/cs35l56.c

@@ -827,6 +827,7 @@ static void cs35l56_dsp_work(struct work_struct *work)
 	else
 		cs35l56_patch(cs35l56, firmware_missing);
 
+	cs35l56_log_tuning(&cs35l56->base, &cs35l56->dsp.cs_dsp);
 err:
 	pm_runtime_mark_last_busy(cs35l56->base.dev);
 	pm_runtime_put_autosuspend(cs35l56->base.dev);