diff options
Diffstat (limited to 'sound/soc/sof/sof-of-dev.c')
| -rw-r--r-- | sound/soc/sof/sof-of-dev.c | 153 |
1 files changed, 153 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 000000000..85ff0db88 --- /dev/null +++ b/sound/soc/sof/sof-of-dev.c @@ -0,0 +1,153 @@ +// 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/pm_runtime.h> +#include <sound/sof.h> + +#include "ops.h" + +extern struct snd_sof_dsp_ops sof_imx8_ops; +extern struct snd_sof_dsp_ops sof_imx8x_ops; +extern struct snd_sof_dsp_ops sof_imx8m_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", + .default_fw_filename = "sof-imx8x.ri", + .nocodec_tplg_filename = "sof-imx8-nocodec.tplg", + .ops = &sof_imx8x_ops, +}; + +static struct sof_dev_desc sof_of_imx8qm_desc = { + .default_fw_path = "imx/sof", + .default_tplg_path = "imx/sof-tplg", + .default_fw_filename = "sof-imx8.ri", + .nocodec_tplg_filename = "sof-imx8-nocodec.tplg", + .ops = &sof_imx8_ops, +}; +#endif + +#if IS_ENABLED(CONFIG_SND_SOC_SOF_IMX8M) +static struct sof_dev_desc sof_of_imx8mp_desc = { + .default_fw_path = "imx/sof", + .default_tplg_path = "imx/sof-tplg", + .default_fw_filename = "sof-imx8m.ri", + .nocodec_tplg_filename = "sof-imx8-nocodec.tplg", + .ops = &sof_imx8m_ops, +}; +#endif + +static 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) +}; + +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_set_active(dev); + pm_runtime_enable(dev); + + pm_runtime_mark_last_busy(dev); + pm_runtime_put_autosuspend(dev); +} + +static 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; + 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; + } + + sof_pdata->desc = desc; + sof_pdata->dev = &pdev->dev; + sof_pdata->fw_filename = desc->default_fw_filename; + + /* 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}, + { .compatible = "fsl,imx8qm-dsp", .data = &sof_of_imx8qm_desc}, +#endif +#if IS_ENABLED(CONFIG_SND_SOC_SOF_IMX8M) + { .compatible = "fsl,imx8mp-dsp", .data = &sof_of_imx8mp_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"); |