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ASoC: cs35l56: Add calibration command to store into UEFI

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Add a new command 'store_uefi' to the calibrate debugfs file.
Writing this command will call cs_amp_set_efi_calibration_data()
to save the new data into a UEFI variable. This is intended to
be used after a successful factory calibration.

On systems without UEFI the write to the debugfs file will
return an error.

Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Reviewed-by: Takashi Iwai <tiwai@suse.de>
Link: https://patch.msgid.link/20251021105022.1013685-10-rf@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Richard Fitzgerald
2025-10-21 11:50:20 +01:00
committed by Mark Brown
parent 2b62e66626
commit ef24466ee1
2 changed files with 19 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
include/sound/cs35l56.h
View File

@@ -321,6 +321,7 @@ struct cs35l56_base {
bool can_hibernate;
bool cal_data_valid;
s8 cal_index;
u8 num_amps;
struct cirrus_amp_cal_data cal_data;
struct gpio_desc *reset_gpio;
struct cs35l56_spi_payload *spi_payload_buf;

21
sound/soc/codecs/cs35l56-shared.c
View File

@@ -1105,9 +1105,9 @@ ssize_t cs35l56_calibrate_debugfs_write(struct cs35l56_base *cs35l56_base,
const char __user *from, size_t count,
loff_t *ppos)
{
static const char * const options[] = { "factory" };
char buf[8] = { 0 };
int ret;
static const char * const options[] = { "factory", "store_uefi" };
char buf[11] = { 0 };
int num_amps, ret;
if (!IS_ENABLED(CONFIG_SND_SOC_CS35L56_CAL_DEBUGFS_COMMON))
return -ENXIO;
@@ -1125,6 +1125,21 @@ ssize_t cs35l56_calibrate_debugfs_write(struct cs35l56_base *cs35l56_base,
if (ret < 0)
return ret;
break;
case 1:
if (!cs35l56_base->cal_data_valid)
return -ENODATA;
num_amps = cs35l56_base->num_amps;
if (num_amps == 0)
num_amps = -1;
ret = cs_amp_set_efi_calibration_data(cs35l56_base->dev,
cs35l56_base->cal_index,
num_amps,
&cs35l56_base->cal_data);
if (ret < 0)
return ret;
break;
default:
return -ENXIO;
}