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Date:   Thu, 28 Oct 2021 22:42:43 +0530
From:   Vinod Koul <vkoul@kernel.org>
To:     Stephan Gerhold <stephan@gerhold.net>
Cc:     Bjorn Andersson <bjorn.andersson@linaro.org>,
        Andy Gross <agross@kernel.org>,
        Rob Herring <robh+dt@kernel.org>,
        linux-arm-msm@vger.kernel.org, dmaengine@vger.kernel.org,
        devicetree@vger.kernel.org, ~postmarketos/upstreaming@lists.sr.ht
Subject: Re: [PATCH v3 0/2] dmaengine: qcom: bam_dma: Add "powered remotely"
 mode for BAM-DMUX
Message-ID: <YXraCwi0RpShcYnQ@matsya>
References: <20211018102421.19848-1-stephan@gerhold.net>
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On 18-10-21, 12:24, Stephan Gerhold wrote:
> The BAM Data Multiplexer (BAM-DMUX) provides access to the network data
> channels of modems integrated into many older Qualcomm SoCs, e.g.
> Qualcomm MSM8916 or MSM8974.
> 
> Shortly said, BAM-DMUX is built using a simple protocol layer on top of
> a DMA engine (Qualcomm BAM DMA). For BAM-DMUX, the BAM DMA engine runs in
> a special mode where the modem/remote side is responsible for powering
> on the BAM when needed but we are responsible to initialize it.
> The BAM is powered off when unneeded by coordinating power control
> via bidirectional interrupts from the BAM-DMUX driver.
> 
> This series adds one possible solution for handling the "powered remotely"
> mode in the bam_dma driver.

Applied, thanks

-- 
~Vinod