6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Baojun Xu <baojun.xu@xxxxxx>
commit 3beddef84d90590270465a907de1cfe2539ac70d upstream.
Wrong calibration data order cause sound too low in some device.
Fix wrong calibrated data order, add calibration data converssion
by get_unaligned_be32() after reading from UEFI.
Fixes: 5be27f1e3ec9 ("ALSA: hda/tas2781: Add tas2781 HDA driver")
Cc: <stable@xxxxxxxxxxxxxxx>
Signed-off-by: Baojun Xu <baojun.xu@xxxxxx>
Link: https://patch.msgid.link/20240813043749.108-1-shenghao-ding@xxxxxx
Signed-off-by: Takashi Iwai <tiwai@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
sound/pci/hda/tas2781_hda_i2c.c | 14 +++++++++-----
1 file changed, 9 insertions(+), 5 deletions(-)
--- a/sound/pci/hda/tas2781_hda_i2c.c
+++ b/sound/pci/hda/tas2781_hda_i2c.c
@@ -2,10 +2,12 @@
//
// TAS2781 HDA I2C driver
//
-// Copyright 2023 Texas Instruments, Inc.
+// Copyright 2023 - 2024 Texas Instruments, Inc.
//
// Author: Shenghao Ding <shenghao-ding@xxxxxx>
+// Current maintainer: Baojun Xu <baojun.xu@xxxxxx>
+#include <asm/unaligned.h>
#include <linux/acpi.h>
#include <linux/crc8.h>
#include <linux/crc32.h>
@@ -425,20 +427,22 @@ static void tas2781_apply_calib(struct t
static const unsigned char rgno_array[CALIB_MAX] = {
0x74, 0x0c, 0x14, 0x70, 0x7c,
};
- unsigned char *data;
+ int offset = 0;
int i, j, rc;
+ __be32 data;
for (i = 0; i < tas_priv->ndev; i++) {
- data = tas_priv->cali_data.data +
- i * TASDEVICE_SPEAKER_CALIBRATION_SIZE;
for (j = 0; j < CALIB_MAX; j++) {
+ data = get_unaligned_be32(
+ &tas_priv->cali_data.data[offset]);
rc = tasdevice_dev_bulk_write(tas_priv, i,
TASDEVICE_REG(0, page_array[j], rgno_array[j]),
- &(data[4 * j]), 4);
+ (unsigned char *)&data, 4);
if (rc < 0)
dev_err(tas_priv->dev,
"chn %d calib %d bulk_wr err = %d\n",
i, j, rc);
+ offset += 4;
}
}
}
