diff options
| author | Charles Keepax <[email protected]> | 2021-11-17 13:22:54 +0000 |
|---|---|---|
| committer | Mark Brown <[email protected]> | 2021-11-17 22:16:22 +0000 |
| commit | 14055b5a3a23204c4702ae5d3f2a819ee081ce33 (patch) | |
| tree | ce8871c4d29ad23a01b5cb7ae2758f9e0a435ba8 | |
| parent | 2925748eadc33cba3bded7b69475a1b002b124ac (diff) | |
firmware: cs_dsp: Add pre_run callback
The code already has a post_run callback, add a matching pre_run
callback to the client_ops that is called before execution is started.
This callback provides a convenient place for the client code to
set DSP controls or hardware that requires configuration before
the DSP core actually starts execution. Note that placing this callback
before cs_dsp_coeff_sync_controls is important to ensure that any
control values are then correctly synced out to the chip.
Co-authored-by: Simon Trimmer <[email protected]>
Signed-off-by: Simon Trimmer <[email protected]>
Signed-off-by: Charles Keepax <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Mark Brown <[email protected]>
| -rw-r--r-- | drivers/firmware/cirrus/cs_dsp.c | 6 | ||||
| -rw-r--r-- | include/linux/firmware/cirrus/cs_dsp.h | 4 |
2 files changed, 9 insertions, 1 deletions
diff --git a/drivers/firmware/cirrus/cs_dsp.c b/drivers/firmware/cirrus/cs_dsp.c index 0da454a8498d..ef7afadea42d 100644 --- a/drivers/firmware/cirrus/cs_dsp.c +++ b/drivers/firmware/cirrus/cs_dsp.c @@ -2627,6 +2627,12 @@ int cs_dsp_run(struct cs_dsp *dsp) goto err; } + if (dsp->client_ops->pre_run) { + ret = dsp->client_ops->pre_run(dsp); + if (ret) + goto err; + } + /* Sync set controls */ ret = cs_dsp_coeff_sync_controls(dsp); if (ret != 0) diff --git a/include/linux/firmware/cirrus/cs_dsp.h b/include/linux/firmware/cirrus/cs_dsp.h index ce54705e2bec..0bf849baeaa5 100644 --- a/include/linux/firmware/cirrus/cs_dsp.h +++ b/include/linux/firmware/cirrus/cs_dsp.h @@ -187,7 +187,8 @@ struct cs_dsp { * struct cs_dsp_client_ops - client callbacks * @control_add: Called under the pwr_lock when a control is created * @control_remove: Called under the pwr_lock when a control is destroyed - * @post_run: Called under the pwr_lock by cs_dsp_run() + * @pre_run: Called under the pwr_lock by cs_dsp_run() before the core is started + * @post_run: Called under the pwr_lock by cs_dsp_run() after the core is started * @post_stop: Called under the pwr_lock by cs_dsp_stop() * @watchdog_expired: Called when a watchdog expiry is detected * @@ -197,6 +198,7 @@ struct cs_dsp { struct cs_dsp_client_ops { int (*control_add)(struct cs_dsp_coeff_ctl *ctl); void (*control_remove)(struct cs_dsp_coeff_ctl *ctl); + int (*pre_run)(struct cs_dsp *dsp); int (*post_run)(struct cs_dsp *dsp); void (*post_stop)(struct cs_dsp *dsp); void (*watchdog_expired)(struct cs_dsp *dsp); |