From ef24466ee1912997c2bd526194006bbca424c24f Mon Sep 17 00:00:00 2001 From: Richard Fitzgerald Date: Tue, 21 Oct 2025 11:50:20 +0100 Subject: [PATCH] ASoC: cs35l56: Add calibration command to store into UEFI 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 Reviewed-by: Takashi Iwai Link: https://patch.msgid.link/20251021105022.1013685-10-rf@opensource.cirrus.com Signed-off-by: Mark Brown --- include/sound/cs35l56.h | 1 + sound/soc/codecs/cs35l56-shared.c | 21 ++++++++++++++++++--- 2 files changed, 19 insertions(+), 3 deletions(-) diff --git a/include/sound/cs35l56.h b/include/sound/cs35l56.h index 349b896ee7373..82559be0f2494 100644 --- a/include/sound/cs35l56.h +++ b/include/sound/cs35l56.h @@ -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; diff --git a/sound/soc/codecs/cs35l56-shared.c b/sound/soc/codecs/cs35l56-shared.c index eeb830e3f7437..bbacac6bda815 100644 --- a/sound/soc/codecs/cs35l56-shared.c +++ b/sound/soc/codecs/cs35l56-shared.c @@ -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; } -- 2.47.3