This patch adds support for parsing the initilisation data from ACPI table. This table is required to configure each device correctly so that correct channel's data is selected during playback.
Signed-off-by: Niranjan H Y niranjan.hy@ti.com --- v2: * use API sdca_regmap_write_init for updating the slave device with init table --- sound/soc/codecs/Kconfig | 1 + sound/soc/codecs/tas2783-sdw.c | 54 ++++++++++++++++++++++++++++++++-- 2 files changed, 52 insertions(+), 3 deletions(-)
diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig index 061791e61..93a266a12 100644 --- a/sound/soc/codecs/Kconfig +++ b/sound/soc/codecs/Kconfig @@ -2146,6 +2146,7 @@ config SND_SOC_TAS2781_I2C config SND_SOC_TAS2783_SDW tristate "Texas Instruments TAS2783 speaker amplifier (sdw)" depends on SOUNDWIRE + depends on SND_SOC_SDCA depends on EFI select REGMAP_SOUNDWIRE select REGMAP_SOUNDWIRE_MBQ diff --git a/sound/soc/codecs/tas2783-sdw.c b/sound/soc/codecs/tas2783-sdw.c index adfbccedb..679fb5cb1 100644 --- a/sound/soc/codecs/tas2783-sdw.c +++ b/sound/soc/codecs/tas2783-sdw.c @@ -32,6 +32,8 @@ #include <sound/soc.h> #include <sound/tlv.h> #include <sound/tas2781-tlv.h> +#include <sound/sdca_function.h> +#include <sound/sdca_regmap.h>
#include "tas2783.h"
@@ -78,6 +80,7 @@ struct tas2783_prv { struct snd_soc_component *component; struct calibration_data cali_data; struct sdw_slave *sdw_peripheral; + struct sdca_function_data *sa_func_data; enum sdw_slave_status status; /* calibration */ struct mutex calib_lock; @@ -1223,9 +1226,18 @@ static s32 tas_io_init(struct device *dev, struct sdw_slave *slave) dev_err(tas_dev->dev, "fw request, wait_event timeout\n"); ret = -EAGAIN; } else { - ret = regmap_multi_reg_write(tas_dev->regmap, tas2783_init_seq, - ARRAY_SIZE(tas2783_init_seq)); - tas_dev->hw_init = true; + if (tas_dev->sa_func_data) + ret = sdca_regmap_write_init(dev, tas_dev->regmap, + tas_dev->sa_func_data); + else + ret = regmap_multi_reg_write(tas_dev->regmap, tas2783_init_seq, + ARRAY_SIZE(tas2783_init_seq)); + + if (ret) + dev_err(tas_dev->dev, + "init writes failed, err=%d", ret); + else + tas_dev->hw_init = true; }
return ret; @@ -1275,12 +1287,47 @@ static s32 tas_sdw_probe(struct sdw_slave *peripheral, struct regmap *regmap; struct device *dev = &peripheral->dev; struct tas2783_prv *tas_dev; + struct sdca_function_data *function_data = NULL; + int ret, i;
tas_dev = devm_kzalloc(dev, sizeof(*tas_dev), GFP_KERNEL); if (!tas_dev) return dev_err_probe(dev, -ENOMEM, "Failed devm_kzalloc");
+ i = -1; + /* check if we have any SDCA function data available */ + if (peripheral->sdca_data.num_functions > 0) { + dev_dbg(dev, "SDCA functions found: %d", peripheral->sdca_data.num_functions); + + /* Look for Smart Amp function type */ + for (i = 0; i < peripheral->sdca_data.num_functions; i++) { + if (peripheral->sdca_data.function[i].type == + SDCA_FUNCTION_TYPE_SMART_AMP) { + dev_info(dev, "Found Smart Amp function at index %d", i); + break; + } + } + } + + if (i >= 0 && i < peripheral->sdca_data.num_functions) { + /* Allocate memory for function data */ + function_data = devm_kzalloc(dev, sizeof(*function_data), + GFP_KERNEL); + if (!function_data) + return dev_err_probe(dev, -ENOMEM, + "failed to parse sdca functions"); + + /* Parse the function */ + ret = sdca_parse_function(dev, peripheral, + &peripheral->sdca_data.function[i], + function_data); + if (!ret) + tas_dev->sa_func_data = function_data; + else + dev_warn(dev, "smartamp function parse failed:err%d, using defaults", ret); + } + tas_dev->dev = dev; tas_dev->sdw_peripheral = peripheral; tas_dev->hw_init = false; @@ -1335,6 +1382,7 @@ static struct sdw_driver tas_sdw_driver = { }; module_sdw_driver(tas_sdw_driver);
+MODULE_IMPORT_NS("SND_SOC_SDCA"); MODULE_AUTHOR("Texas Instruments Inc."); MODULE_DESCRIPTION("ASoC TAS2783 SoundWire Driver"); MODULE_LICENSE("GPL");