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authorRichard Fitzgerald <rf@opensource.cirrus.com>2024-02-23 15:39:08 +0000
committerMark Brown <broonie@kernel.org>2024-02-23 17:21:41 +0000
commit1326444e93c250ff99eba048f699313ba6acbf2f (patch)
tree20914ab3b0f13263d1ca2ef420bd916fc0713dd1
parente1830f66f6c62d288d2c27a7ed18ab93caa0b253 (diff)
ASoC: cs35l56: Apply amp calibration from EFI data
If there are factory calibration settings in EFI, extract the settings and write them to the firmware calibration controls. This must be done after any firmware or coefficients have been downloaded to the amp. Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com> Link: https://lore.kernel.org/r/20240223153910.2063698-5-rf@opensource.cirrus.com Signed-off-by: Mark Brown <broonie@kernel.org>
-rw-r--r--sound/soc/codecs/cs35l56-sdw.c20
-rw-r--r--sound/soc/codecs/cs35l56.c44
2 files changed, 61 insertions, 3 deletions
diff --git a/sound/soc/codecs/cs35l56-sdw.c b/sound/soc/codecs/cs35l56-sdw.c
index ab960a1c171e..eaa4c706f3a2 100644
--- a/sound/soc/codecs/cs35l56-sdw.c
+++ b/sound/soc/codecs/cs35l56-sdw.c
@@ -161,6 +161,20 @@ static const struct regmap_bus cs35l56_regmap_bus_sdw = {
.val_format_endian_default = REGMAP_ENDIAN_BIG,
};
+static int cs35l56_sdw_set_cal_index(struct cs35l56_private *cs35l56)
+{
+ int ret;
+
+ /* SoundWire UniqueId is used to index the calibration array */
+ ret = sdw_read_no_pm(cs35l56->sdw_peripheral, SDW_SCP_DEVID_0);
+ if (ret < 0)
+ return ret;
+
+ cs35l56->base.cal_index = ret & 0xf;
+
+ return 0;
+}
+
static void cs35l56_sdw_init(struct sdw_slave *peripheral)
{
struct cs35l56_private *cs35l56 = dev_get_drvdata(&peripheral->dev);
@@ -168,6 +182,12 @@ static void cs35l56_sdw_init(struct sdw_slave *peripheral)
pm_runtime_get_noresume(cs35l56->base.dev);
+ if (cs35l56->base.cal_index < 0) {
+ ret = cs35l56_sdw_set_cal_index(cs35l56);
+ if (ret < 0)
+ goto out;
+ }
+
regcache_cache_only(cs35l56->base.regmap, false);
ret = cs35l56_init(cs35l56);
diff --git a/sound/soc/codecs/cs35l56.c b/sound/soc/codecs/cs35l56.c
index 2c1313e34cce..23da9b96d8a7 100644
--- a/sound/soc/codecs/cs35l56.c
+++ b/sound/soc/codecs/cs35l56.c
@@ -23,6 +23,7 @@
#include <linux/soundwire/sdw.h>
#include <linux/types.h>
#include <linux/workqueue.h>
+#include <sound/cs-amp-lib.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
@@ -802,16 +803,44 @@ static struct snd_soc_dai_driver cs35l56_dai[] = {
}
};
+static int cs35l56_write_cal(struct cs35l56_private *cs35l56)
+{
+ int ret;
+
+ if (cs35l56->base.secured || !cs35l56->base.cal_data_valid)
+ return -ENODATA;
+
+ ret = wm_adsp_run(&cs35l56->dsp);
+ if (ret)
+ return ret;
+
+ ret = cs_amp_write_cal_coeffs(&cs35l56->dsp.cs_dsp,
+ &cs35l56_calibration_controls,
+ &cs35l56->base.cal_data);
+
+ wm_adsp_stop(&cs35l56->dsp);
+
+ if (ret == 0)
+ dev_info(cs35l56->base.dev, "Calibration applied\n");
+
+ return ret;
+}
+
static void cs35l56_reinit_patch(struct cs35l56_private *cs35l56)
{
int ret;
/* Use wm_adsp to load and apply the firmware patch and coefficient files */
ret = wm_adsp_power_up(&cs35l56->dsp, true);
- if (ret)
+ if (ret) {
dev_dbg(cs35l56->base.dev, "%s: wm_adsp_power_up ret %d\n", __func__, ret);
- else
- cs35l56_mbox_send(&cs35l56->base, CS35L56_MBOX_CMD_AUDIO_REINIT);
+ return;
+ }
+
+ cs35l56_write_cal(cs35l56);
+
+ /* Always REINIT after applying patch or coefficients */
+ cs35l56_mbox_send(&cs35l56->base, CS35L56_MBOX_CMD_AUDIO_REINIT);
}
static void cs35l56_patch(struct cs35l56_private *cs35l56, bool firmware_missing)
@@ -874,6 +903,9 @@ static void cs35l56_patch(struct cs35l56_private *cs35l56, bool firmware_missing
CS35L56_FIRMWARE_MISSING);
cs35l56->base.fw_patched = true;
+ if (cs35l56_write_cal(cs35l56) == 0)
+ cs35l56_mbox_send(&cs35l56->base, CS35L56_MBOX_CMD_AUDIO_REINIT);
+
err_unlock:
mutex_unlock(&cs35l56->base.irq_lock);
err:
@@ -1356,6 +1388,7 @@ int cs35l56_common_probe(struct cs35l56_private *cs35l56)
init_completion(&cs35l56->init_completion);
mutex_init(&cs35l56->base.irq_lock);
+ cs35l56->base.cal_index = -1;
cs35l56->speaker_id = -ENOENT;
dev_set_drvdata(cs35l56->base.dev, cs35l56);
@@ -1457,6 +1490,10 @@ int cs35l56_init(struct cs35l56_private *cs35l56)
if (ret)
return ret;
+ ret = cs35l56_get_calibration(&cs35l56->base);
+ if (ret)
+ return ret;
+
if (!cs35l56->base.reset_gpio) {
dev_dbg(cs35l56->base.dev, "No reset gpio: using soft reset\n");
cs35l56->soft_resetting = true;
@@ -1541,6 +1578,7 @@ EXPORT_NS_GPL_DEV_PM_OPS(cs35l56_pm_ops_i2c_spi, SND_SOC_CS35L56_CORE) = {
MODULE_DESCRIPTION("ASoC CS35L56 driver");
MODULE_IMPORT_NS(SND_SOC_CS35L56_SHARED);
+MODULE_IMPORT_NS(SND_SOC_CS_AMP_LIB);
MODULE_AUTHOR("Richard Fitzgerald <rf@opensource.cirrus.com>");
MODULE_AUTHOR("Simon Trimmer <simont@opensource.cirrus.com>");
MODULE_LICENSE("GPL");