ASoC: SOF: Intel: hda-ctrl: re-add sleep after entering and exiting r…

…eset This reverts commit a09d82c ("ASoC: SOF: Intel: hda-ctrl: remove useless sleep") It was a mistake to remove those delays, in light of comments in the HDaudio spec captured in snd_hdac_bus_reset_link() that the codec needs time for its initialization and PLL lock. Signed-off-by: Pierre-Louis Bossart <[email protected]> Reviewed-by: Ranjani Sridharan <[email protected]> Reviewed-by: Péter Ujfalusi <[email protected]> Reviewed-by: Rander Wang <[email protected]> Signed-off-by: Peter Ujfalusi <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Mark Brown <[email protected]>
chewitt · Mar 7, 2023 · 8bac40b · 8bac40b
1 parent 52a5577
commit 8bac40b
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/sound/soc/sof/intel/hda-ctrl.c b/sound/soc/sof/intel/hda-ctrl.c
@@ -196,12 +196,15 @@ int hda_dsp_ctrl_init_chip(struct snd_sof_dev *sdev)
 		goto err;
 	}
 
+	usleep_range(500, 1000);
+
 	/* exit HDA controller reset */
 	ret = hda_dsp_ctrl_link_reset(sdev, false);
 	if (ret < 0) {
 		dev_err(sdev->dev, "error: failed to exit HDA controller reset\n");
 		goto err;
 	}
+	usleep_range(1000, 1200);
 
 	hda_codec_detect_mask(sdev);