bus: mhi: ep: Add support for sending events to the host

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Add support for sending the events to the host over MHI bus from the
endpoint. Following events are supported:

1. Transfer completion event
2. Command completion event
3. State change event
4. Execution Environment (EE) change event

An event is sent whenever an operation has been completed in the MHI EP
device. Event is sent using the MHI event ring and additionally the host
is notified using an IRQ if required.

Reviewed-by: Alex Elder <elder@linaro.org>
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Link: https://lore.kernel.org/r/20220405135754.6622-7-manivannan.sadhasivam@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Manivannan Sadhasivam 2022-04-05 19:27:42 +05:30 • committed by Greg Kroah-Hartman

parent bbdcba57a1

commit 961aeb6892

4 changed files with 123 additions and 0 deletions

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22

drivers/bus/mhi/common.h

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4

drivers/bus/mhi/ep/internal.h

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89

drivers/bus/mhi/ep/main.c

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8

include/linux/mhi_ep.h

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