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ASoC: Intel: Allow Rx/Tx message list can be cleared prior to suspend

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Suspend/resume requires reloading FW to boot state so we need to also make
sure that the driver matches the FW state at boot.

Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
This commit is contained in:
Liam Girdwood 2014-05-08 16:07:25 +03:00 committed by Mark Brown
parent 800be5900b
commit 609a13e5c9
1 changed files with 18 additions and 0 deletions
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18
sound/soc/intel/sst-baytrail-ipc.c
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@ -299,6 +299,24 @@ static inline void sst_byt_tx_msg_reply_complete(struct sst_byt *byt,
wake_up(&msg->waitq);
}
static void sst_byt_drop_all(struct sst_byt *byt)
{
struct ipc_message *msg, *tmp;
unsigned long flags;
/* drop all TX and Rx messages before we stall + reset DSP */
spin_lock_irqsave(&byt->dsp->spinlock, flags);
list_for_each_entry_safe(msg, tmp, &byt->tx_list, list) {
list_move(&msg->list, &byt->empty_list);
}
list_for_each_entry_safe(msg, tmp, &byt->rx_list, list) {
list_move(&msg->list, &byt->empty_list);
}
spin_unlock_irqrestore(&byt->dsp->spinlock, flags);
}
static int sst_byt_tx_wait_done(struct sst_byt *byt, struct ipc_message *msg,
void *rx_data)
{