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| author |  Charles Keepax <ckeepax@opensource.cirrus.com>
| 2022-07-22 10:48:50 +0100 |
|---|---|---|
| committer |  Mark Brown <broonie@kernel.org>
| 2022-07-22 13:39:59 +0100 |
| commit | dea997733575c5793ca77e166bbbf89097987eb4 (patch) | |
| tree | 793c474d7cffbf741378f708b7b7f03a64c6367d | |
| parent | ASoC: fsl: Fix sparse warning (diff) | |
| download | linux-dea997733575c5793ca77e166bbbf89097987eb4.tar.gz linux-dea997733575c5793ca77e166bbbf89097987eb4.tar.bz2 linux-dea997733575c5793ca77e166bbbf89097987eb4.zip | |
firmware: cs_dsp: Add pre_stop callback
The code already has a post_stop callback, add a matching pre_stop
callback to the client_ops that is called before execution is stopped.
This callback provides a convenient place for the client code to
communicate with the DSP before it is stopped.
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20220722094851.92521-1-ckeepax@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
| -rw-r--r-- | drivers/firmware/cirrus/cs_dsp.c | 3 | ||||
| -rw-r--r-- | include/linux/firmware/cirrus/cs_dsp.h | 4 |
2 files changed, 6 insertions, 1 deletions
diff --git a/drivers/firmware/cirrus/cs_dsp.c b/drivers/firmware/cirrus/cs_dsp.c index 7dad6f57d970..b402f841d72c 100644 --- a/drivers/firmware/cirrus/cs_dsp.c +++ b/drivers/firmware/cirrus/cs_dsp.c @@ -2725,6 +2725,9 @@ void cs_dsp_stop(struct cs_dsp *dsp) mutex_lock(&dsp->pwr_lock); + if (dsp->client_ops->pre_stop) + dsp->client_ops->pre_stop(dsp); + dsp->running = false; if (dsp->ops->stop_core) diff --git a/include/linux/firmware/cirrus/cs_dsp.h b/include/linux/firmware/cirrus/cs_dsp.h index 30055706cce2..6ab230218df0 100644 --- a/include/linux/firmware/cirrus/cs_dsp.h +++ b/include/linux/firmware/cirrus/cs_dsp.h @@ -189,7 +189,8 @@ struct cs_dsp { * @control_remove: Called under the pwr_lock when a control is destroyed * @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() + * @pre_stop: Called under the pwr_lock by cs_dsp_stop() before the core is stopped + * @post_stop: Called under the pwr_lock by cs_dsp_stop() after the core is stopped * @watchdog_expired: Called when a watchdog expiry is detected * * These callbacks give the cs_dsp client an opportunity to respond to events @@ -200,6 +201,7 @@ struct cs_dsp_client_ops { void (*control_remove)(struct cs_dsp_coeff_ctl *ctl); int (*pre_run)(struct cs_dsp *dsp); int (*post_run)(struct cs_dsp *dsp); + void (*pre_stop)(struct cs_dsp *dsp); void (*post_stop)(struct cs_dsp *dsp); void (*watchdog_expired)(struct cs_dsp *dsp); }; |