From: Ranjani Sridharan <ranjani.sridha...@linux.intel.com>

Add new ops for registering/unregistering clients based
on DSP capabilities and/or DT information.

Reviewed-by: Pierre-Louis Bossart <pierre-louis.boss...@linux.intel.com>
Signed-off-by: Ranjani Sridharan <ranjani.sridha...@linux.intel.com>
Signed-off-by: Dave Ertman <david.m.ert...@intel.com>
---
 sound/soc/sof/core.c     | 10 ++++++++++
 sound/soc/sof/ops.h      | 14 ++++++++++++++
 sound/soc/sof/sof-priv.h |  4 ++++
 3 files changed, 28 insertions(+)

diff --git a/sound/soc/sof/core.c b/sound/soc/sof/core.c
index 72a97219395f..ddb9a12d5aac 100644
--- a/sound/soc/sof/core.c
+++ b/sound/soc/sof/core.c
@@ -246,8 +246,17 @@ static int sof_probe_continue(struct snd_sof_dev *sdev)
        if (plat_data->sof_probe_complete)
                plat_data->sof_probe_complete(sdev->dev);
 
+       /* If registering certain clients fails, unregister the previously 
registered clients. */
+       ret = snd_sof_register_clients(sdev);
+       if (ret < 0) {
+               dev_err(sdev->dev, "error: failed to register clients %d\n", 
ret);
+               goto client_reg_err;
+       }
+
        return 0;
 
+client_reg_err:
+       snd_sof_unregister_clients(sdev);
 fw_trace_err:
        snd_sof_free_trace(sdev);
 fw_run_err:
@@ -356,6 +365,7 @@ int snd_sof_device_remove(struct device *dev)
                        dev_warn(dev, "error: %d failed to prepare DSP for 
device removal",
                                 ret);
 
+               snd_sof_unregister_clients(sdev);
                snd_sof_fw_unload(sdev);
                snd_sof_ipc_free(sdev);
                snd_sof_free_debug(sdev);
diff --git a/sound/soc/sof/ops.h b/sound/soc/sof/ops.h
index b21632f5511a..00370f8bcd75 100644
--- a/sound/soc/sof/ops.h
+++ b/sound/soc/sof/ops.h
@@ -470,6 +470,20 @@ snd_sof_set_mach_params(const struct snd_soc_acpi_mach 
*mach,
                sof_ops(sdev)->set_mach_params(mach, dev);
 }
 
+static inline int snd_sof_register_clients(struct snd_sof_dev *sdev)
+{
+       if (sof_ops(sdev) && sof_ops(sdev)->register_clients)
+               return sof_ops(sdev)->register_clients(sdev);
+
+       return 0;
+}
+
+static inline void snd_sof_unregister_clients(struct snd_sof_dev *sdev)
+{
+       if (sof_ops(sdev) && sof_ops(sdev)->unregister_clients)
+               sof_ops(sdev)->unregister_clients(sdev);
+}
+
 static inline const struct snd_sof_dsp_ops
 *sof_get_ops(const struct sof_dev_desc *d,
             const struct sof_ops_table mach_ops[], int asize)
diff --git a/sound/soc/sof/sof-priv.h b/sound/soc/sof/sof-priv.h
index dceac73b858f..cca239c09d0e 100644
--- a/sound/soc/sof/sof-priv.h
+++ b/sound/soc/sof/sof-priv.h
@@ -252,6 +252,10 @@ struct snd_sof_dsp_ops {
        void (*set_mach_params)(const struct snd_soc_acpi_mach *mach,
                                struct device *dev); /* optional */
 
+       /* client ops */
+       int (*register_clients)(struct snd_sof_dev *sdev); /* optional */
+       void (*unregister_clients)(struct snd_sof_dev *sdev); /* optional */
+
        /* DAI ops */
        struct snd_soc_dai_driver *drv;
        int num_drv;
-- 
2.26.2

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