diff options
| author | Baojun Xu | 2024-08-13 12:37:48 +0800 |
|---|---|---|
| committer | Takashi Iwai | 2024-08-13 08:58:42 +0200 |
| commit | 3beddef84d90590270465a907de1cfe2539ac70d (patch) | |
| tree | 1a2d2d41f89801208ed627b8608cd34e2518ae1e /sound | |
| parent | 004eb8ba776ccd3e296ea6f78f7ae7985b12824e (diff) | |
ALSA: hda/tas2781: fix wrong calibrated data order
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@vger.kernel.org>
Signed-off-by: Baojun Xu <baojun.xu@ti.com>
Link: https://patch.msgid.link/20240813043749.108-1-shenghao-ding@ti.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/pci/hda/tas2781_hda_i2c.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/sound/pci/hda/tas2781_hda_i2c.c b/sound/pci/hda/tas2781_hda_i2c.c index 49bd7097d892..7dbfc92d9d55 100644 --- 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@ti.com> +// Current maintainer: Baojun Xu <baojun.xu@ti.com> +#include <asm/unaligned.h> #include <linux/acpi.h> #include <linux/crc8.h> #include <linux/crc32.h> @@ -519,20 +521,22 @@ static void tas2781_apply_calib(struct tasdevice_priv *tas_priv) 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; } } } |