ASoC: SOF: Intel: hda: report error only for the last ROM init iteration

The FW boot sequence includes multiple attempts for ROM init.
When it does take more than one attempt, we should not log the
errors encountered during the failed attempts and only log them
during the final iteration.

Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Link: https://lore.kernel.org/r/20200825235040.1586478-2-ranjani.sridharan@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/sof/intel/hda-loader.c

@@ -79,7 +79,7 @@ static int cl_stream_prepare(struct snd_sof_dev *sdev, unsigned int format,
  * reset/stall and then turn it off
  */
 static int cl_dsp_init(struct snd_sof_dev *sdev, const void *fwdata,
-		       u32 fwsize, int stream_tag)
+		       u32 fwsize, int stream_tag, int iteration)
 {
 	struct sof_intel_hda_dev *hda = sdev->pdata->hw_pdata;
 	const struct sof_intel_dsp_desc *chip = hda->desc;
@@ -90,7 +90,8 @@ static int cl_dsp_init(struct snd_sof_dev *sdev, const void *fwdata,
 	/* step 1: power up corex */
 	ret = hda_dsp_core_power_up(sdev, chip->cores_mask);
 	if (ret < 0) {
-		dev_err(sdev->dev, "error: dsp core 0/1 power up failed\n");
+		if (iteration == HDA_FW_BOOT_ATTEMPTS)
+			dev_err(sdev->dev, "error: dsp core 0/1 power up failed\n");
 		goto err;
 	}
 
@@ -112,7 +113,9 @@ static int cl_dsp_init(struct snd_sof_dev *sdev, const void *fwdata,
 	/* step 3: unset core 0 reset state & unstall/run core 0 */
 	ret = hda_dsp_core_run(sdev, HDA_DSP_CORE_MASK(0));
 	if (ret < 0) {
-		dev_err(sdev->dev, "error: dsp core start failed %d\n", ret);
+		if (iteration == HDA_FW_BOOT_ATTEMPTS)
+			dev_err(sdev->dev,
+				"error: dsp core start failed %d\n", ret);
 		ret = -EIO;
 		goto err;
 	}
@@ -126,8 +129,10 @@ static int cl_dsp_init(struct snd_sof_dev *sdev, const void *fwdata,
 					    HDA_DSP_INIT_TIMEOUT_US);
 
 	if (ret < 0) {
-		dev_err(sdev->dev, "error: %s: timeout for HIPCIE done\n",
-			__func__);
+		if (iteration == HDA_FW_BOOT_ATTEMPTS)
+			dev_err(sdev->dev,
+				"error: %s: timeout for HIPCIE done\n",
+				__func__);
 		goto err;
 	}
 
@@ -141,7 +146,9 @@ static int cl_dsp_init(struct snd_sof_dev *sdev, const void *fwdata,
 	ret = hda_dsp_core_power_down(sdev,
 				  chip->cores_mask & ~(HDA_DSP_CORE_MASK(0)));
 	if (ret < 0) {
-		dev_err(sdev->dev, "error: dsp core x power down failed\n");
+		if (iteration == HDA_FW_BOOT_ATTEMPTS)
+			dev_err(sdev->dev,
+				"error: dsp core x power down failed\n");
 		goto err;
 	}
 
@@ -159,9 +166,10 @@ static int cl_dsp_init(struct snd_sof_dev *sdev, const void *fwdata,
 	if (!ret)
 		return 0;
 
-	dev_err(sdev->dev,
-		"error: %s: timeout HDA_DSP_SRAM_REG_ROM_STATUS read\n",
-		__func__);
+	if (iteration == HDA_FW_BOOT_ATTEMPTS)
+		dev_err(sdev->dev,
+			"error: %s: timeout HDA_DSP_SRAM_REG_ROM_STATUS read\n",
+			__func__);
 
 err:
 	hda_dsp_dump(sdev, SOF_DBG_REGS | SOF_DBG_PCI | SOF_DBG_MBOX);
@@ -329,25 +337,25 @@ int hda_dsp_cl_boot_firmware(struct snd_sof_dev *sdev)
 
 	/* try ROM init a few times before giving up */
 	for (i = 0; i < HDA_FW_BOOT_ATTEMPTS; i++) {
+		dev_dbg(sdev->dev,
+			"Attempting iteration %d of Core En/ROM load...\n", i);
+
 		ret = cl_dsp_init(sdev, stripped_firmware.data,
-				  stripped_firmware.size, tag);
+				  stripped_firmware.size, tag, i + 1);
 
 		/* don't retry anymore if successful */
 		if (!ret)
 			break;
+	}
 
-		dev_dbg(sdev->dev, "iteration %d of Core En/ROM load failed: %d\n",
+	if (i == HDA_FW_BOOT_ATTEMPTS) {
+		dev_err(sdev->dev, "error: dsp init failed after %d attempts with err: %d\n",
 			i, ret);
-		dev_dbg(sdev->dev, "Error code=0x%x: FW status=0x%x\n",
+		dev_err(sdev->dev, "ROM error=0x%x: FW status=0x%x\n",
 			snd_sof_dsp_read(sdev, HDA_DSP_BAR,
 					 HDA_DSP_SRAM_REG_ROM_ERROR),
 			snd_sof_dsp_read(sdev, HDA_DSP_BAR,
 					 HDA_DSP_SRAM_REG_ROM_STATUS));
-	}
-
-	if (i == HDA_FW_BOOT_ATTEMPTS) {
-		dev_err(sdev->dev, "error: dsp init failed after %d attempts with err: %d\n",
-			i, ret);
 		goto cleanup;
 	}