Re: [PATCH v8 2/4] soc: qcom: Add AOSS QMP driver
From: Vinod Koul
Date: Mon Jun 03 2019 - 11:41:40 EST
On 30-05-19, 20:00, Bjorn Andersson wrote:
> The Always On Subsystem (AOSS) Qualcomm Messaging Protocol (QMP) driver
> is used to communicate with the AOSS for certain side-channel requests,
> that are not available through the RPMh interface.
> The communication is a very simple synchronous mechanism of messages
> being written in message RAM and a doorbell in the AOSS is rung. As the
> AOSS has processed the message length is cleared and an interrupt is
> fired by the AOSS as acknowledgment.
> The driver exposes the QDSS clock as a clock and the low-power state
> associated with the remoteprocs in the system as a set of power-domains.
Reviewed-by: Vinod Koul <vkoul@xxxxxxxxxx>