bus: mhi: ep: Power up/down MHI stack during MHI RESET

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During graceful shutdown scenario, host will issue MHI RESET to the
endpoint device before initiating shutdown. In that case, it makes sense
to completely power down the MHI stack as sooner or later the access to
MMIO registers will be prohibited. Also, the stack needs to be powered
up in the case of SYS_ERR to recover the device.

Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Reviewed-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Link: https://lore.kernel.org/r/20221228161704.255268-2-manivannan.sadhasivam@linaro.org
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>

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Manivannan Sadhasivam 2022-12-28 21:46:59 +05:30

parent a33ca17426

commit 47a1dcaea0

1 changed files with 7 additions and 28 deletions

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35

drivers/bus/mhi/ep/main.c

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