Re: [PATCH 7/7] arm64: dts: qcom: sdm845: enable dma for spi

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To: Vinod Koul <vkoul@xxxxxxxxxx>, Bjorn Andersson <bjorn.andersson@xxxxxxxxxx>, Mark Brown <broonie@xxxxxxxxxx>, Wolfram Sang <wsa@xxxxxxxxxx>
Subject: Re: [PATCH 7/7] arm64: dts: qcom: sdm845: enable dma for spi
From: Konrad Dybcio <konrad.dybcio@xxxxxxxxxxxxxx>
Date: Mon, 11 Jan 2021 17:04:50 +0100
Cc: linux-arm-msm@xxxxxxxxxxxxxxx, Andy Gross <agross@xxxxxxxxxx>, Matthias Kaehlcke <mka@xxxxxxxxxxxx>, Douglas Anderson <dianders@xxxxxxxxxxxx>, Sumit Semwal <sumit.semwal@xxxxxxxxxx>, Amit Pundir <amit.pundir@xxxxxxxxxx>, linux-spi@xxxxxxxxxxxxxxx, linux-i2c@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx
In-reply-to: <20210111151651.1616813-8-vkoul@kernel.org>
References: <20210111151651.1616813-1-vkoul@kernel.org> <20210111151651.1616813-8-vkoul@kernel.org>
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.6.0

Hi,

looks like sdm845-cheza also uses the spi0 bus, which as far as I understand is going to break with the GPI DMA disabled. Perhaps it should also be enabled over there?

Actually, is there a point in disabling DMA for BLSPs/QUPs in the SoC DTSI? I don't think any platform/vendor firmware disables entire hosts..


Konrad

Follow-Ups:
- Re: [PATCH 7/7] arm64: dts: qcom: sdm845: enable dma for spi
  - From: Vinod Koul

References:
- [PATCH 0/7] Add and enable GPI DMA users
  - From: Vinod Koul
- [PATCH 7/7] arm64: dts: qcom: sdm845: enable dma for spi
  - From: Vinod Koul

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