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soc: swr-mstr: exit irq handler if clock req fails

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exit irq handler gracefully if soundwire clock request
fails, so that soundwire registers are not accessed
without clock.

Change-Id: Ic2c9162e49901c7d5c876115f386d0a5a00fd691
Signed-off-by: Karthikeyan Mani <kmani@codeaurora.org>
This commit is contained in:
Karthikeyan Mani 2019-09-18 17:58:41 -07:00 • committed by Gerrit - the friendly Code Review server
commit 4bee1db049
1 changed files with 13 additions and 1 deletions
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14
soc/swr-mstr-ctrl.c
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@ -1607,6 +1607,12 @@ static irqreturn_t swr_mstr_interrupt_v2(int irq, void *dev)
struct swr_device *swr_dev;
struct swr_master *mstr = &swrm->master;
if (!swrm->dev_up || swrm->state == SWR_MSTR_SSR) {
complete(&swrm->broadcast);
dev_dbg(swrm->dev, "%s swrm is not up\n", __func__);
return IRQ_NONE;
}
if (unlikely(swrm_lock_sleep(swrm) == false)) {
dev_err(swrm->dev, "%s Failed to hold suspend\n", __func__);
return IRQ_NONE;
@ -1621,7 +1627,12 @@ static irqreturn_t swr_mstr_interrupt_v2(int irq, void *dev)
ret = IRQ_NONE;
goto err_audio_hw_vote;
}
swrm_clk_request(swrm, true);
ret = swrm_clk_request(swrm, true);
if (ret) {
dev_err(dev, "%s: swrm clk failed\n", __func__);
ret = IRQ_NONE;
goto err_audio_core_vote;
}
mutex_unlock(&swrm->reslock);
intr_sts = swr_master_read(swrm, SWRM_INTERRUPT_STATUS);
@ -1797,6 +1808,7 @@ handle_irq:
mutex_lock(&swrm->reslock);
swrm_clk_request(swrm, false);
err_audio_core_vote:
swrm_request_hw_vote(swrm, LPASS_AUDIO_CORE, false);
err_audio_hw_vote: