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| Filename | Latest commit message | Latest commit date |
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f3c67e033c
pm runtime resume and suspend operation uses linux clock API to vote/unvote lpass hw resources. When autosuspend funtionality is used, suspend op is triggered from a worker thread upon timer expiration, can block if there is an ongoing clock operation holding global prepare/unprepare mutex lock in common clock framwork. If the ongoing clock operation calls get_sync on pinctrl-lpi, the get_sync gets scheduled out due to ongoing suspend by worker thread. This leads to dead lock between get_sync and suspend, waiting for each other to complete. Avoid using autosuspend functionality in pinctrl-lpi to avoid race conditions in clock APIs. As auto suspend functionality is not required, lpass hw voting/devoting happens in synchronous manner, can be done directly by calling DSP voting APIs. Hence remove runtime pm ops in lpi pinctrl driver. Change-Id: I86df5e8e502c6466feea196fe8649c34e046aa26 Signed-off-by: Abhilash Sathyanarayana <quic_abhisath@quicinc.com> |
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