bus: mhi: ep: Add support for processing command rings

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Add support for processing the command rings. Command ring is used by the
host to issue channel specific commands to the ep device. Following
commands are supported:

1. Start channel
2. Stop channel
3. Reset channel

Once the device receives the command doorbell interrupt from host, it
executes the command and generates a command completion event to the
host in the primary event ring.

Reviewed-by: Alex Elder <elder@linaro.org>
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>

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This commit is contained in:

Manivannan Sadhasivam 2022-02-12 20:56:27 +05:30

parent 1b54f3e8b4

commit 2b231a40e9

2 changed files with 191 additions and 1 deletions

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190

drivers/bus/mhi/ep/main.c

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2

include/linux/mhi_ep.h

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