linux-kernel - Re: [PATCH v2 1/2] soc: qcom: geni-se: Add interfaces geni_se_tx_init_dma() and geni_se_rx_init

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Date:   Tue, 6 Jun 2023 16:53:39 +0100
From:   Mark Brown <broonie@...nel.org>
To:     Doug Anderson <dianders@...omium.org>
Cc:     Vijaya Krishna Nivarthi <quic_vnivarth@...cinc.com>,
        agross@...nel.org, andersson@...nel.org, konrad.dybcio@...aro.org,
        linux-arm-msm@...r.kernel.org, linux-spi@...r.kernel.org,
        linux-kernel@...r.kernel.org, quic_msavaliy@...cinc.com,
        mka@...omium.org, swboyd@...omium.org, quic_vtanuku@...cinc.com,
        quic_ptalari@...cinc.com
Subject: Re: [PATCH v2 1/2] soc: qcom: geni-se: Add interfaces
 geni_se_tx_init_dma() and geni_se_rx_init_dma()

On Wed, May 17, 2023 at 07:18:17AM -0700, Doug Anderson wrote:
> On Wed, May 17, 2023 at 5:18 AM Vijaya Krishna Nivarthi

> > The geni_se_xx_dma_prep() interfaces necessarily do DMA mapping before
> > initiating DMA transfers. This is not suitable for spi where framework
> > is expected to handle map/unmap.

> Mark and Bjorn will have to coordinate how they want to land this,
> since normally patch #1 would go through the Qualcomm tree and patch
> #2 through the SPI tree. In any case:

Bjorn?

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