| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Date: Mon, 1 Jul 2019 15:42:51 +0200
From: Nikolaus Voss <nikolaus.voss@...wensteinmedical.de>
To: Liam Girdwood <lgirdwood@...il.com>,
Mark Brown <broonie@...nel.org>,
Jaroslav Kysela <perex@...ex.cz>,
Takashi Iwai <tiwai@...e.com>,
Andreas Dannenberg <dannenberg@...com>,
"Andrew F. Davis" <afd@...com>,
Kate Stewart <kstewart@...uxfoundation.org>
Cc: Nikolaus Voss <nikolaus.voss@...wensteinmedical.de>,
alsa-devel@...a-project.org, linux-kernel@...r.kernel.org,
linux-acpi@...r.kernel.org, nv@...n.de
Subject: [PATCH v2 1/2] ASoC: tas5720.c: cleanup variant management
Replace enum tas572x_type with struct tas5720_variant which aggregates
variant specific stuff and can be directly referenced from an id table.
Signed-off-by: Nikolaus Voss <nikolaus.voss@...wensteinmedical.de>
---
sound/soc/codecs/tas5720.c | 98 +++++++++++++-------------------------
1 file changed, 33 insertions(+), 65 deletions(-)
diff --git a/sound/soc/codecs/tas5720.c b/sound/soc/codecs/tas5720.c
index 37fab8f22800..b2e897f094b4 100644
--- a/sound/soc/codecs/tas5720.c
+++ b/sound/soc/codecs/tas5720.c
@@ -28,9 +28,10 @@
/* 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 +45,7 @@ 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 +180,13 @@ 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 +274,7 @@ 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 +298,9 @@ 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,
@@ -637,7 +622,6 @@ static int tas5720_probe(struct i2c_client *client,
{
struct device *dev = &client->dev;
struct tas5720_data *data;
- const struct regmap_config *regmap_config;
int ret;
int i;
@@ -646,20 +630,10 @@ static int tas5720_probe(struct i2c_client *client,
return -ENOMEM;
data->tas5720_client = client;
- data->devtype = id->driver_data;
- 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->variant = (const struct tas5720_variant *)id->driver_data;
+
+ data->regmap = devm_regmap_init_i2c(client, data->variant->reg_config);
if (IS_ERR(data->regmap)) {
ret = PTR_ERR(data->regmap);
dev_err(dev, "failed to allocate register map: %d\n", ret);
@@ -678,42 +652,36 @@ 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;
- }
-
- return 0;
+ ret = devm_snd_soc_register_component(&client->dev,
+ data->variant->comp_drv,
+ tas5720_dai,
+ ARRAY_SIZE(tas5720_dai));
+ return ret;
}
+static const struct tas5720_variant tas5720 = {
+ .device_id = TAS5720_DEVICE_ID,
+ .reg_config = &tas5720_regmap_config,
+ .comp_drv = &soc_component_dev_tas5720,
+};
+
+static const struct tas5720_variant tas5722 = {
+ .device_id = TAS5722_DEVICE_ID,
+ .reg_config = &tas5722_regmap_config,
+ .comp_drv = &soc_component_dev_tas5722,
+};
+
static const struct i2c_device_id tas5720_id[] = {
- { "tas5720", TAS5720 },
- { "tas5722", TAS5722 },
+ { "tas5720", (kernel_ulong_t)&tas5720 },
+ { "tas5722", (kernel_ulong_t)&tas5722 },
{ }
};
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 = &tas5720, },
+ { .compatible = "ti,tas5722", .data = &tas5722, },
{ },
};
MODULE_DEVICE_TABLE(of, tas5720_of_match);
--
2.17.1
Powered by blists - more mailing lists