linux-kernel - [PATCH] ALSA: hda/tas2781: select program 0, conf 0 by default

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Date: Fri, 15 Dec 2023 00:33:27 +0100
From: Gergo Koteles <soyer@....hu>
To: Shenghao Ding <shenghao-ding@...com>, Kevin Lu <kevin-lu@...com>,
  Baojun Xu <baojun.xu@...com>, Jaroslav Kysela <perex@...ex.cz>,
  Takashi Iwai <tiwai@...e.com>
Cc: linux-kernel@...r.kernel.org, alsa-devel@...a-project.org,
  Gergo Koteles <soyer@....hu>, stable@...r.kernel.org
Subject: [PATCH] ALSA: hda/tas2781: select program 0, conf 0 by default

Currently, cur_prog/cur_conf remains at the default value (-1), while
program 0 has been loaded into the amplifiers.

In the playback hook, tasdevice_tuning_switch tries to restore the
cur_prog/cur_conf. In the runtime_resume/system_resume,
tasdevice_prmg_load tries to load the cur_prog as well.

Set cur_prog and cur_conf to 0 if available in the firmware.

Fixes: 5be27f1e3ec9 ("ALSA: hda/tas2781: Add tas2781 HDA driver")
CC: stable@...r.kernel.org
Signed-off-by: Gergo Koteles <soyer@....hu>
---
 sound/pci/hda/tas2781_hda_i2c.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/sound/pci/hda/tas2781_hda_i2c.c b/sound/pci/hda/tas2781_hda_i2c.c
index fb802802939e..e974510367e3 100644
--- a/sound/pci/hda/tas2781_hda_i2c.c
+++ b/sound/pci/hda/tas2781_hda_i2c.c
@@ -543,6 +543,10 @@ static void tasdev_fw_ready(const struct firmware *fmw, void *context)
 
 	tas_priv->fw_state = TASDEVICE_DSP_FW_ALL_OK;
 	tasdevice_prmg_load(tas_priv, 0);
+	if (tas_priv->fmw->nr_programs > 0)
+		tas_priv->cur_prog = 0;
+	if (tas_priv->fmw->nr_configurations > 0)
+		tas_priv->cur_conf = 0;
 
 	/* If calibrated data occurs error, dsp will still works with default
 	 * calibrated data inside algo.

base-commit: ffc253263a1375a65fa6c9f62a893e9767fbebfa
-- 
2.43.0