[PATCH v2 2/2] ALSA: hda/tas2781: Skip invalid TAS2563 UEFI calibration data

[Gergo Koteles <soyer@irl.hu>]

Some Lenovo 14ARB7 laptops do not have proper calibration data.

Skip these zero calibration values and fall back to the calibration data
provided by the DSP firmware.

Tested-by: Georg Wenzel <g.wenzel@gmail.com>
Fixes: c3ca4458cc2f ("ALSA: hda/tas2781: add TAS2563 support for 14ARB7")
Cc: <stable@vger.kernel.org> # 6.18
Signed-off-by: Gergo Koteles <soyer@irl.hu>
---
Changes is v2:
 - none

---
 sound/hda/codecs/side-codecs/tas2781_hda_i2c.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/sound/hda/codecs/side-codecs/tas2781_hda_i2c.c b/sound/hda/codecs/side-codecs/tas2781_hda_i2c.c
index cff8fab8133a..44855f593daf 100644
--- a/sound/hda/codecs/side-codecs/tas2781_hda_i2c.c
+++ b/sound/hda/codecs/side-codecs/tas2781_hda_i2c.c
@@ -372,6 +372,11 @@ static int tas2563_save_calibration(struct tas2781_hda *h)
 					i, j, status);
 				return -EINVAL;
 			}
+			if (*(uint32_t *)&data[offset] == 0) {
+				dev_warn(p->dev,
+					 "Dev %d: Caldat[%d] is zero\n", i, j);
+				return -EINVAL;
+			}
 			bedata = cpu_to_be32(*(uint32_t *)&data[offset]);
 			memcpy(&data[offset], &bedata, sizeof(bedata));
 			offset += TAS2563_CAL_DATA_SIZE;
-- 
2.56.0