samsung-sm8650/android_kernel_samsung_sm8650-modules
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soc: remove reslock usage during wakeup vote/unvote

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Remove reslock usage from device wakeup vote and unvote functions.
Mutex lock 'reslock' is to used only within runtime resume
and suspend functions, to avoid race conditions between them.

Change-Id: I221b00db2e762a0803b898a62cd98db1fe3ae3fa
Signed-off-by: Vignesh Kulothungan <vigneshk@codeaurora.org>
This commit is contained in:
Vignesh Kulothungan
2020-05-12 14:20:35 -07:00
parent e7efdae360
commit 6142448043
1 changed files with 0 additions and 4 deletions
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4
soc/swr-mstr-ctrl.c
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@@ -2204,14 +2204,12 @@ static void swrm_device_wakeup_vote(struct swr_master *mstr)
dev_err(swrm->dev, "%s Failed to hold suspend\n", __func__);
return;
}
mutex_lock(&swrm->reslock);
if (swrm_request_hw_vote(swrm, LPASS_HW_CORE, true))
dev_err(swrm->dev, "%s:lpass core hw enable failed\n",
__func__);
if (swrm_request_hw_vote(swrm, LPASS_AUDIO_CORE, true))
dev_err(swrm->dev, "%s:lpass audio hw enable failed\n",
__func__);
mutex_unlock(&swrm->reslock);
pm_runtime_get_sync(swrm->dev);
}
@@ -2228,10 +2226,8 @@ static void swrm_device_wakeup_unvote(struct swr_master *mstr)
pm_runtime_mark_last_busy(swrm->dev);
pm_runtime_put_autosuspend(swrm->dev);
mutex_lock(&swrm->reslock);
swrm_request_hw_vote(swrm, LPASS_AUDIO_CORE, false);
swrm_request_hw_vote(swrm, LPASS_HW_CORE, false);
mutex_unlock(&swrm->reslock);
swrm_unlock_sleep(swrm);
}