summaryrefslogtreecommitdiffstats
path: root/sound/soc/sof/sof-of-dev.c
diff options
context:
space:
mode:
Diffstat (limited to 'sound/soc/sof/sof-of-dev.c')
-rw-r--r--sound/soc/sof/sof-of-dev.c104
1 files changed, 104 insertions, 0 deletions
diff --git a/sound/soc/sof/sof-of-dev.c b/sound/soc/sof/sof-of-dev.c
new file mode 100644
index 0000000000..53faeccedd
--- /dev/null
+++ b/sound/soc/sof/sof-of-dev.c
@@ -0,0 +1,104 @@
+// SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
+//
+// Copyright 2019 NXP
+//
+// Author: Daniel Baluta <daniel.baluta@nxp.com>
+//
+
+#include <linux/firmware.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/pm_runtime.h>
+#include <sound/sof.h>
+
+#include "sof-of-dev.h"
+#include "ops.h"
+
+static char *fw_path;
+module_param(fw_path, charp, 0444);
+MODULE_PARM_DESC(fw_path, "alternate path for SOF firmware.");
+
+static char *tplg_path;
+module_param(tplg_path, charp, 0444);
+MODULE_PARM_DESC(tplg_path, "alternate path for SOF topology.");
+
+const struct dev_pm_ops sof_of_pm = {
+ .prepare = snd_sof_prepare,
+ .complete = snd_sof_complete,
+ SET_SYSTEM_SLEEP_PM_OPS(snd_sof_suspend, snd_sof_resume)
+ SET_RUNTIME_PM_OPS(snd_sof_runtime_suspend, snd_sof_runtime_resume,
+ NULL)
+};
+EXPORT_SYMBOL(sof_of_pm);
+
+static void sof_of_probe_complete(struct device *dev)
+{
+ /* allow runtime_pm */
+ pm_runtime_set_autosuspend_delay(dev, SND_SOF_SUSPEND_DELAY_MS);
+ pm_runtime_use_autosuspend(dev);
+ pm_runtime_mark_last_busy(dev);
+ pm_runtime_set_active(dev);
+ pm_runtime_enable(dev);
+}
+
+int sof_of_probe(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ const struct sof_dev_desc *desc;
+ struct snd_sof_pdata *sof_pdata;
+
+ dev_info(&pdev->dev, "DT DSP detected");
+
+ sof_pdata = devm_kzalloc(dev, sizeof(*sof_pdata), GFP_KERNEL);
+ if (!sof_pdata)
+ return -ENOMEM;
+
+ desc = device_get_match_data(dev);
+ if (!desc)
+ return -ENODEV;
+
+ if (!desc->ops) {
+ dev_err(dev, "error: no matching DT descriptor ops\n");
+ return -ENODEV;
+ }
+
+ sof_pdata->desc = desc;
+ sof_pdata->dev = &pdev->dev;
+ sof_pdata->fw_filename = desc->default_fw_filename[SOF_IPC];
+
+ if (fw_path)
+ sof_pdata->fw_filename_prefix = fw_path;
+ else
+ sof_pdata->fw_filename_prefix = sof_pdata->desc->default_fw_path[SOF_IPC];
+
+ if (tplg_path)
+ sof_pdata->tplg_filename_prefix = tplg_path;
+ else
+ sof_pdata->tplg_filename_prefix = sof_pdata->desc->default_tplg_path[SOF_IPC];
+
+ /* set callback to be called on successful device probe to enable runtime_pm */
+ sof_pdata->sof_probe_complete = sof_of_probe_complete;
+
+ /* call sof helper for DSP hardware probe */
+ return snd_sof_device_probe(dev, sof_pdata);
+}
+EXPORT_SYMBOL(sof_of_probe);
+
+int sof_of_remove(struct platform_device *pdev)
+{
+ pm_runtime_disable(&pdev->dev);
+
+ /* call sof helper for DSP hardware remove */
+ snd_sof_device_remove(&pdev->dev);
+
+ return 0;
+}
+EXPORT_SYMBOL(sof_of_remove);
+
+void sof_of_shutdown(struct platform_device *pdev)
+{
+ snd_sof_device_shutdown(&pdev->dev);
+}
+EXPORT_SYMBOL(sof_of_shutdown);
+
+MODULE_LICENSE("Dual BSD/GPL");