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From: Vinod Koul <vkoul@kernel.org>
To: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: Andy Gross <agross@kernel.org>,
David Brown <david.brown@linaro.org>,
Rob Herring <robh+dt@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Doug Anderson <dianders@chromium.org>,
Arun Kumar Neelakantam <aneela@codeaurora.org>,
linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH v8 2/4] soc: qcom: Add AOSS QMP driver
Date: Mon, 3 Jun 2019 21:04:40 +0530 [thread overview]
Message-ID: <20190603153440.GT15118@vkoul-mobl> (raw)
In-Reply-To: <20190531030057.18328-3-bjorn.andersson@linaro.org>
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@kernel.org>
--
~Vinod
next prev parent reply other threads:[~2019-06-03 15:37 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-31 3:00 [PATCH v8 0/4] Qualcomm " Bjorn Andersson
2019-05-31 3:00 ` [PATCH v8 1/4] dt-bindings: soc: qcom: Add AOSS QMP binding Bjorn Andersson
2019-05-31 3:00 ` [PATCH v8 2/4] soc: qcom: Add AOSS QMP driver Bjorn Andersson
2019-05-31 22:24 ` Doug Anderson
2019-06-01 0:09 ` Bjorn Andersson
2019-06-01 0:31 ` Doug Anderson
2019-06-03 15:34 ` Vinod Koul [this message]
2019-05-31 3:00 ` [PATCH v8 3/4] arm64: dts: qcom: Add AOSS QMP node Bjorn Andersson
2019-05-31 3:00 ` [PATCH v8 4/4] arm64: dts: qcom: sdm845: Add Q6V5 MSS node Bjorn Andersson
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