linux-kernel - [PATCH 1/9] ALSA: hda/cs35l56: Complete firmware reboot before calling cs_dsp

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Message-ID: <20230731165726.7940-2-rf@opensource.cirrus.com>
Date:   Mon, 31 Jul 2023 17:57:18 +0100
From:   Richard Fitzgerald <rf@...nsource.cirrus.com>
To:     <tiwai@...e.com>
CC:     <perex@...ex.cz>, <alsa-devel@...a-project.org>,
        <linux-kernel@...r.kernel.org>, <patches@...nsource.cirrus.com>,
        Richard Fitzgerald <rf@...nsource.cirrus.com>
Subject: [PATCH 1/9] ALSA: hda/cs35l56: Complete firmware reboot before calling cs_dsp_run()

Move the call to cs_dsp_run() in cs35l56_hda_fw_load() so that it
is after the CS35L56 has been reset/reinit'd and the regmap
cache has been synced.

cs_dsp_run() syncs up ALSA control cache values with the DSP memory
so this must not be done until the firmware has reinitialized.

Signed-off-by: Richard Fitzgerald <rf@...nsource.cirrus.com>
---
 sound/pci/hda/cs35l56_hda.c | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/sound/pci/hda/cs35l56_hda.c b/sound/pci/hda/cs35l56_hda.c
index 4c3279f61b94..c3acda2daeeb 100644
--- a/sound/pci/hda/cs35l56_hda.c
+++ b/sound/pci/hda/cs35l56_hda.c
@@ -562,12 +562,6 @@ static int cs35l56_hda_fw_load(struct cs35l56_hda *cs35l56)
 	if (coeff_filename)
 		dev_dbg(cs35l56->base.dev, "Loaded Coefficients: %s\n", coeff_filename);
 
-	ret = cs_dsp_run(&cs35l56->cs_dsp);
-	if (ret) {
-		dev_dbg(cs35l56->base.dev, "%s: cs_dsp_run ret %d\n", __func__, ret);
-		goto err;
-	}
-
 	if (cs35l56->base.secured) {
 		ret = cs35l56_mbox_send(&cs35l56->base, CS35L56_MBOX_CMD_AUDIO_REINIT);
 		if (ret)
@@ -591,6 +585,11 @@ static int cs35l56_hda_fw_load(struct cs35l56_hda *cs35l56)
 	regmap_clear_bits(cs35l56->base.regmap, CS35L56_PROTECTION_STATUS,
 			  CS35L56_FIRMWARE_MISSING);
 	cs35l56->base.fw_patched = true;
+
+	ret = cs_dsp_run(&cs35l56->cs_dsp);
+	if (ret)
+		dev_dbg(cs35l56->base.dev, "%s: cs_dsp_run ret %d\n", __func__, ret);
+
 err:
 	pm_runtime_put(cs35l56->base.dev);
 	mutex_unlock(&cs35l56->base.irq_lock);
-- 
2.30.2