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Diffstat (limited to 'sound/soc/sof/sof-of-dev.c')
-rw-r--r--sound/soc/sof/sof-of-dev.c143
1 files changed, 143 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 000000000000..28a9692974e5
--- /dev/null
+++ b/sound/soc/sof/sof-of-dev.c
@@ -0,0 +1,143 @@
+// SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause)
+//
+// Copyright 2019 NXP
+//
+// Author: Daniel Baluta <daniel.baluta@nxp.com>
+//
+
+#include <linux/firmware.h>
+#include <linux/module.h>
+#include <linux/pm_runtime.h>
+#include <sound/sof.h>
+
+#include "ops.h"
+
+extern struct snd_sof_dsp_ops sof_imx8_ops;
+
+/* platform specific devices */
+#if IS_ENABLED(CONFIG_SND_SOC_SOF_IMX8)
+static struct sof_dev_desc sof_of_imx8qxp_desc = {
+ .default_fw_path = "imx/sof",
+ .default_tplg_path = "imx/sof-tplg",
+ .nocodec_fw_filename = "sof-imx8.ri",
+ .nocodec_tplg_filename = "sof-imx8-nocodec.tplg",
+ .ops = &sof_imx8_ops,
+};
+#endif
+
+static const struct dev_pm_ops sof_of_pm = {
+ SET_SYSTEM_SLEEP_PM_OPS(snd_sof_suspend, snd_sof_resume)
+ SET_RUNTIME_PM_OPS(snd_sof_runtime_suspend, snd_sof_runtime_resume,
+ NULL)
+};
+
+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_enable(dev);
+}
+
+static int sof_of_probe(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ const struct sof_dev_desc *desc;
+ /*TODO: create a generic snd_soc_xxx_mach */
+ struct snd_soc_acpi_mach *mach;
+ struct snd_sof_pdata *sof_pdata;
+ const struct snd_sof_dsp_ops *ops;
+ int ret;
+
+ 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;
+
+ /* get ops for platform */
+ ops = desc->ops;
+ if (!ops) {
+ dev_err(dev, "error: no matching DT descriptor ops\n");
+ return -ENODEV;
+ }
+
+#if IS_ENABLED(CONFIG_SND_SOC_SOF_FORCE_NOCODEC_MODE)
+ /* force nocodec mode */
+ dev_warn(dev, "Force to use nocodec mode\n");
+ mach = devm_kzalloc(dev, sizeof(*mach), GFP_KERNEL);
+ if (!mach)
+ return -ENOMEM;
+ ret = sof_nocodec_setup(dev, sof_pdata, mach, desc, ops);
+ if (ret < 0)
+ return ret;
+#else
+ /* TODO: implement case where we actually have a codec */
+ return -ENODEV;
+#endif
+
+ if (mach)
+ mach->mach_params.platform = dev_name(dev);
+
+ sof_pdata->machine = mach;
+ sof_pdata->desc = desc;
+ sof_pdata->dev = &pdev->dev;
+ sof_pdata->platform = dev_name(dev);
+
+ /* TODO: read alternate fw and tplg filenames from DT */
+ sof_pdata->fw_filename_prefix = sof_pdata->desc->default_fw_path;
+ sof_pdata->tplg_filename_prefix = sof_pdata->desc->default_tplg_path;
+
+#if IS_ENABLED(CONFIG_SND_SOC_SOF_PROBE_WORK_QUEUE)
+ /* set callback to enable runtime_pm */
+ sof_pdata->sof_probe_complete = sof_of_probe_complete;
+#endif
+ /* call sof helper for DSP hardware probe */
+ ret = snd_sof_device_probe(dev, sof_pdata);
+ if (ret) {
+ dev_err(dev, "error: failed to probe DSP hardware\n");
+ return ret;
+ }
+
+#if !IS_ENABLED(CONFIG_SND_SOC_SOF_PROBE_WORK_QUEUE)
+ sof_of_probe_complete(dev);
+#endif
+
+ return ret;
+}
+
+static 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;
+}
+
+static const struct of_device_id sof_of_ids[] = {
+#if IS_ENABLED(CONFIG_SND_SOC_SOF_IMX8)
+ { .compatible = "fsl,imx8qxp-dsp", .data = &sof_of_imx8qxp_desc},
+#endif
+ { }
+};
+MODULE_DEVICE_TABLE(of, sof_of_ids);
+
+/* DT driver definition */
+static struct platform_driver snd_sof_of_driver = {
+ .probe = sof_of_probe,
+ .remove = sof_of_remove,
+ .driver = {
+ .name = "sof-audio-of",
+ .pm = &sof_of_pm,
+ .of_match_table = sof_of_ids,
+ },
+};
+module_platform_driver(snd_sof_of_driver);
+
+MODULE_LICENSE("Dual BSD/GPL");