return 0;
}
- static int cs35l56_acpi_get_name(struct cs35l56_private *cs35l56)
+ static int cs35l56_get_firmware_uid(struct cs35l56_private *cs35l56)
{
- acpi_handle handle = ACPI_HANDLE(cs35l56->base.dev);
- const char *sub;
- struct device *dev = cs35l56->dev;
++ struct device *dev = cs35l56->base.dev;
+ const char *prop;
+ int ret;
- /* If there is no ACPI_HANDLE, there is no ACPI for this system, return 0 */
- if (!handle)
+ ret = device_property_read_string(dev, "cirrus,firmware-uid", &prop);
+ /* If bad sw node property, return 0 and fallback to legacy firmware path */
+ if (ret < 0)
return 0;
- sub = acpi_get_subsystem_id(handle);
- if (IS_ERR(sub)) {
- /* If bad ACPI, return 0 and fallback to legacy firmware path, otherwise fail */
- if (PTR_ERR(sub) == -ENODATA)
- return 0;
- else
- return PTR_ERR(sub);
- }
+ cs35l56->dsp.system_name = devm_kstrdup(dev, prop, GFP_KERNEL);
+ if (cs35l56->dsp.system_name == NULL)
+ return -ENOMEM;
- cs35l56->dsp.system_name = sub;
- dev_dbg(cs35l56->base.dev, "Subsystem ID: %s\n", cs35l56->dsp.system_name);
+ dev_dbg(dev, "Firmware UID: %s\n", cs35l56->dsp.system_name);
return 0;
}
ret = regulator_bulk_enable(ARRAY_SIZE(cs35l56->supplies), cs35l56->supplies);
if (ret != 0)
- return dev_err_probe(cs35l56->dev, ret, "Failed to enable supplies\n");
+ return dev_err_probe(cs35l56->base.dev, ret, "Failed to enable supplies\n");
- if (cs35l56->reset_gpio) {
+ if (cs35l56->base.reset_gpio) {
cs35l56_wait_min_reset_pulse();
- gpiod_set_value_cansleep(cs35l56->reset_gpio, 1);
+ gpiod_set_value_cansleep(cs35l56->base.reset_gpio, 1);
}
- ret = cs35l56_acpi_get_name(cs35l56);
+ ret = cs35l56_get_firmware_uid(cs35l56);
if (ret != 0)
goto err;
flush_workqueue(cs35l56->dsp_wq);
destroy_workqueue(cs35l56->dsp_wq);
- pm_runtime_suspend(cs35l56->dev);
- pm_runtime_disable(cs35l56->dev);
+ pm_runtime_suspend(cs35l56->base.dev);
+ pm_runtime_disable(cs35l56->base.dev);
- regcache_cache_only(cs35l56->regmap, true);
+ regcache_cache_only(cs35l56->base.regmap, true);
- kfree(cs35l56->dsp.system_name);
-
- gpiod_set_value_cansleep(cs35l56->reset_gpio, 0);
+ gpiod_set_value_cansleep(cs35l56->base.reset_gpio, 0);
regulator_bulk_disable(ARRAY_SIZE(cs35l56->supplies), cs35l56->supplies);
}
EXPORT_SYMBOL_NS_GPL(cs35l56_remove, SND_SOC_CS35L56_CORE);