soc: qcom: aoss: Read back before triggering the IRQ
In some device memory used by msm_qmp, there can be an early ack of a
write to memory succeeding. This may cause the outgoing interrupt to be
triggered before the msgram reflects the write.
Add a readback to ensure the data is flushed to device memory before
triggering the ipc interrupt.
Signed-off-by: Arun Kumar Neelakantam <aneela@codeaurora.org>
Link: https://lore.kernel.org/r/1579681454-1229-1-git-send-email-aneela@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
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