Add support for ACPI enumeration for tas5720 and tas5722. Use device_match API to unify access to driver data for DT and ACPI. Aggregate variant stuff into its own struct and directly reference it in variant data for i2c/of/acpi_device_id.
Signed-off-by: Nikolaus Voss nikolaus.voss@loewensteinmedical.de --- sound/soc/codecs/tas5720.c | 215 +++++++++++++++++-------------------- 1 file changed, 99 insertions(+), 116 deletions(-)
diff --git a/sound/soc/codecs/tas5720.c b/sound/soc/codecs/tas5720.c index 37fab8f22800..ea973764c745 100644 --- a/sound/soc/codecs/tas5720.c +++ b/sound/soc/codecs/tas5720.c @@ -7,6 +7,7 @@ * Author: Andreas Dannenberg dannenberg@ti.com */
+#include <linux/acpi.h> #include <linux/module.h> #include <linux/errno.h> #include <linux/device.h> @@ -28,9 +29,10 @@ /* Define how often to check (and clear) the fault status register (in ms) */ #define TAS5720_FAULT_CHECK_INTERVAL 200
-enum tas572x_type { - TAS5720, - TAS5722, +struct tas5720_variant { + const int device_id; + const struct regmap_config reg_config; + const struct snd_soc_component_driver comp_drv; };
static const char * const tas5720_supply_names[] = { @@ -44,7 +46,7 @@ struct tas5720_data { struct snd_soc_component *component; struct regmap *regmap; struct i2c_client *tas5720_client; - enum tas572x_type devtype; + const struct tas5720_variant *variant; struct regulator_bulk_data supplies[TAS5720_NUM_SUPPLIES]; struct delayed_work fault_check_work; unsigned int last_fault; @@ -179,17 +181,13 @@ static int tas5720_set_dai_tdm_slot(struct snd_soc_dai *dai, goto error_snd_soc_component_update_bits;
/* Configure TDM slot width. This is only applicable to TAS5722. */ - switch (tas5720->devtype) { - case TAS5722: + if (tas5720->variant->device_id == TAS5722_DEVICE_ID) { ret = snd_soc_component_update_bits(component, TAS5722_DIGITAL_CTRL2_REG, TAS5722_TDM_SLOT_16B, slot_width == 16 ? TAS5722_TDM_SLOT_16B : 0); if (ret < 0) goto error_snd_soc_component_update_bits; - break; - default: - break; }
return 0; @@ -277,7 +275,7 @@ static void tas5720_fault_check_work(struct work_struct *work) static int tas5720_codec_probe(struct snd_soc_component *component) { struct tas5720_data *tas5720 = snd_soc_component_get_drvdata(component); - unsigned int device_id, expected_device_id; + unsigned int device_id; int ret;
tas5720->component = component; @@ -301,21 +299,9 @@ static int tas5720_codec_probe(struct snd_soc_component *component) goto probe_fail; }
- switch (tas5720->devtype) { - case TAS5720: - expected_device_id = TAS5720_DEVICE_ID; - break; - case TAS5722: - expected_device_id = TAS5722_DEVICE_ID; - break; - default: - dev_err(component->dev, "unexpected private driver data\n"); - return -EINVAL; - } - - if (device_id != expected_device_id) + if (device_id != tas5720->variant->device_id) dev_warn(component->dev, "wrong device ID. expected: %u read: %u\n", - expected_device_id, device_id); + tas5720->variant->device_id, device_id);
/* Set device to mute */ ret = snd_soc_component_update_bits(component, TAS5720_DIGITAL_CTRL2_REG, @@ -462,24 +448,6 @@ static bool tas5720_is_volatile_reg(struct device *dev, unsigned int reg) } }
-static const struct regmap_config tas5720_regmap_config = { - .reg_bits = 8, - .val_bits = 8, - - .max_register = TAS5720_MAX_REG, - .cache_type = REGCACHE_RBTREE, - .volatile_reg = tas5720_is_volatile_reg, -}; - -static const struct regmap_config tas5722_regmap_config = { - .reg_bits = 8, - .val_bits = 8, - - .max_register = TAS5722_MAX_REG, - .cache_type = REGCACHE_RBTREE, - .volatile_reg = tas5720_is_volatile_reg, -}; - /* * DAC analog gain. There are four discrete values to select from, ranging * from 19.2 dB to 26.3dB. @@ -558,40 +526,6 @@ static const struct snd_soc_dapm_route tas5720_audio_map[] = { { "OUT", NULL, "DAC" }, };
-static const struct snd_soc_component_driver soc_component_dev_tas5720 = { - .probe = tas5720_codec_probe, - .remove = tas5720_codec_remove, - .suspend = tas5720_suspend, - .resume = tas5720_resume, - .controls = tas5720_snd_controls, - .num_controls = ARRAY_SIZE(tas5720_snd_controls), - .dapm_widgets = tas5720_dapm_widgets, - .num_dapm_widgets = ARRAY_SIZE(tas5720_dapm_widgets), - .dapm_routes = tas5720_audio_map, - .num_dapm_routes = ARRAY_SIZE(tas5720_audio_map), - .idle_bias_on = 1, - .use_pmdown_time = 1, - .endianness = 1, - .non_legacy_dai_naming = 1, -}; - -static const struct snd_soc_component_driver soc_component_dev_tas5722 = { - .probe = tas5720_codec_probe, - .remove = tas5720_codec_remove, - .suspend = tas5720_suspend, - .resume = tas5720_resume, - .controls = tas5722_snd_controls, - .num_controls = ARRAY_SIZE(tas5722_snd_controls), - .dapm_widgets = tas5720_dapm_widgets, - .num_dapm_widgets = ARRAY_SIZE(tas5720_dapm_widgets), - .dapm_routes = tas5720_audio_map, - .num_dapm_routes = ARRAY_SIZE(tas5720_audio_map), - .idle_bias_on = 1, - .use_pmdown_time = 1, - .endianness = 1, - .non_legacy_dai_naming = 1, -}; - /* PCM rates supported by the TAS5720 driver */ #define TAS5720_RATES (SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |\ SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000) @@ -637,29 +571,25 @@ static int tas5720_probe(struct i2c_client *client, { struct device *dev = &client->dev; struct tas5720_data *data; - const struct regmap_config *regmap_config; + const struct tas5720_variant *type; int ret; int i;
+ type = device_get_match_data(&client->dev); + if (!type && id) + type = (const struct tas5720_variant *)id->driver_data; + + if (!type) + return -EINVAL; + data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL); if (!data) return -ENOMEM;
data->tas5720_client = client; - data->devtype = id->driver_data; + data->variant = type;
- switch (id->driver_data) { - case TAS5720: - regmap_config = &tas5720_regmap_config; - break; - case TAS5722: - regmap_config = &tas5722_regmap_config; - break; - default: - dev_err(dev, "unexpected private driver data\n"); - return -EINVAL; - } - data->regmap = devm_regmap_init_i2c(client, regmap_config); + data->regmap = devm_regmap_init_i2c(client, &type->reg_config); if (IS_ERR(data->regmap)) { ret = PTR_ERR(data->regmap); dev_err(dev, "failed to allocate register map: %d\n", ret); @@ -678,51 +608,104 @@ static int tas5720_probe(struct i2c_client *client,
dev_set_drvdata(dev, data);
- switch (id->driver_data) { - case TAS5720: - ret = devm_snd_soc_register_component(&client->dev, - &soc_component_dev_tas5720, - tas5720_dai, - ARRAY_SIZE(tas5720_dai)); - break; - case TAS5722: - ret = devm_snd_soc_register_component(&client->dev, - &soc_component_dev_tas5722, - tas5720_dai, - ARRAY_SIZE(tas5720_dai)); - break; - default: - dev_err(dev, "unexpected private driver data\n"); - return -EINVAL; - } - if (ret < 0) { - dev_err(dev, "failed to register component: %d\n", ret); - return ret; - } + ret = devm_snd_soc_register_component(&client->dev, + &type->comp_drv, + tas5720_dai, + ARRAY_SIZE(tas5720_dai));
- return 0; + if (ret < 0) + dev_err(dev, "failed to register component: %d\n", ret); + + return ret; }
+static const struct tas5720_variant variant[] = { + { + .device_id = TAS5720_DEVICE_ID, + .reg_config = { + .reg_bits = 8, + .val_bits = 8, + + .max_register = TAS5720_MAX_REG, + .cache_type = REGCACHE_RBTREE, + .volatile_reg = tas5720_is_volatile_reg, + }, + .comp_drv = { + .probe = tas5720_codec_probe, + .remove = tas5720_codec_remove, + .suspend = tas5720_suspend, + .resume = tas5720_resume, + .controls = tas5720_snd_controls, + .num_controls = ARRAY_SIZE(tas5720_snd_controls), + .dapm_widgets = tas5720_dapm_widgets, + .num_dapm_widgets = ARRAY_SIZE(tas5720_dapm_widgets), + .dapm_routes = tas5720_audio_map, + .num_dapm_routes = ARRAY_SIZE(tas5720_audio_map), + .idle_bias_on = 1, + .use_pmdown_time = 1, + .endianness = 1, + .non_legacy_dai_naming = 1 + }, + }, + { + .device_id = TAS5722_DEVICE_ID, + .reg_config = { + .reg_bits = 8, + .val_bits = 8, + + .max_register = TAS5722_MAX_REG, + .cache_type = REGCACHE_RBTREE, + .volatile_reg = tas5720_is_volatile_reg, + }, + .comp_drv = { + .probe = tas5720_codec_probe, + .remove = tas5720_codec_remove, + .suspend = tas5720_suspend, + .resume = tas5720_resume, + .controls = tas5722_snd_controls, + .num_controls = ARRAY_SIZE(tas5722_snd_controls), + .dapm_widgets = tas5720_dapm_widgets, + .num_dapm_widgets = ARRAY_SIZE(tas5720_dapm_widgets), + .dapm_routes = tas5720_audio_map, + .num_dapm_routes = ARRAY_SIZE(tas5720_audio_map), + .idle_bias_on = 1, + .use_pmdown_time = 1, + .endianness = 1, + .non_legacy_dai_naming = 1, + }, + }, +}; + static const struct i2c_device_id tas5720_id[] = { - { "tas5720", TAS5720 }, - { "tas5722", TAS5722 }, + { "tas5720", (kernel_ulong_t)&variant[0] }, + { "tas5722", (kernel_ulong_t)&variant[1] }, { } }; MODULE_DEVICE_TABLE(i2c, tas5720_id);
#if IS_ENABLED(CONFIG_OF) static const struct of_device_id tas5720_of_match[] = { - { .compatible = "ti,tas5720", }, - { .compatible = "ti,tas5722", }, + { .compatible = "ti,tas5720", .data = &variant[0], }, + { .compatible = "ti,tas5722", .data = &variant[1], }, { }, }; MODULE_DEVICE_TABLE(of, tas5720_of_match); #endif
+#if IS_ENABLED(CONFIG_ACPI) +static const struct acpi_device_id tas5720_acpi_match[] = { + { "10TI5720", (kernel_ulong_t)&variant[0] }, + { "10TI5722", (kernel_ulong_t)&variant[1] }, + { } +}; +MODULE_DEVICE_TABLE(acpi, tas5720_acpi_match); +#endif + static struct i2c_driver tas5720_i2c_driver = { .driver = { .name = "tas5720", .of_match_table = of_match_ptr(tas5720_of_match), + .acpi_match_table = ACPI_PTR(tas5720_acpi_match), }, .probe = tas5720_probe, .id_table = tas5720_id,