Mao Jinlong 950c6df6ec coresight: cti: Add PM runtime call in enable_store ...

[ Upstream commit eff674a9b8 ]

In commit 6746eae4bb ("coresight: cti: Fix hang in cti_disable_hw()")
PM runtime calls are removed from cti_enable_hw/cti_disable_hw. When
enabling CTI by writing enable sysfs node, clock for accessing CTI
register won't be enabled. Device will crash due to register access
issue. Add PM runtime call in enable_store to fix this issue.

Fixes: 6746eae4bb ("coresight: cti: Fix hang in cti_disable_hw()")
Signed-off-by: Mao Jinlong <quic_jinlmao@quicinc.com>
[Change to only call pm_runtime_put if a disable happened]
Tested-by: Jinlong Mao <quic_jinlmao@quicinc.com>
Signed-off-by: James Clark <james.clark@arm.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20230110110736.2709917-3-james.clark@arm.com
Signed-off-by: Sasha Levin <sashal@kernel.org>

2023-03-10 09:39:36 +01:00

..

coresight

coresight: cti: Add PM runtime call in enable_store

2023-03-10 09:39:36 +01:00

intel_th

intel_th: pci: Add Raptor Lake-S CPU support

2022-08-17 14:24:21 +02:00

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Kconfig

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