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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>