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[83.9.31.248]) by smtp.gmail.com with ESMTPSA id p11-20020ac246cb000000b004edc485f86bsm1219117lfo.239.2023.05.08.01.32.09 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 08 May 2023 01:32:10 -0700 (PDT) Message-ID: Date: Mon, 8 May 2023 10:32:08 +0200 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.10.1 Subject: Re: [PATCH 2/4] ARM: dts: qcom: apq8074-dragonboard: Set DMA as remotely controlled Content-Language: en-US To: Dmitry Baryshkov , Andy Gross , Bjorn Andersson , Rob Clark , Sean Paul , Abhinav Kumar , Rob Herring , Krzysztof Kozlowski Cc: Stephen Boyd , David Airlie , Daniel Vetter , linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, dri-devel@lists.freedesktop.org, freedreno@lists.freedesktop.org References: <20230507190735.2333145-1-dmitry.baryshkov@linaro.org> <20230507190735.2333145-3-dmitry.baryshkov@linaro.org> From: Konrad Dybcio In-Reply-To: <20230507190735.2333145-3-dmitry.baryshkov@linaro.org> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org On 7.05.2023 21:07, Dmitry Baryshkov wrote: > Add the qcom,controlled-remotely property for the blsp2_bam > controller node. This board requires this, otherwise the board stalls > during the boot for some reason (most probably because TZ mishandles the > protection error and keeps on looping somewhere inside). > > Fixes: 62bc81792223 dts: msm8974: Add blsp2_bam dma node > Signed-off-by: Dmitry Baryshkov > --- Looks like a common theme.. sony-rhine boards also have the DMA enabled *and* need this property.. perhaps it's a SoC-wide (or at least SoC-and-fw-distribution-wide) issue? Reviewed-by: Konrad Dybcio Konrad > arch/arm/boot/dts/qcom-apq8074-dragonboard.dts | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/arch/arm/boot/dts/qcom-apq8074-dragonboard.dts b/arch/arm/boot/dts/qcom-apq8074-dragonboard.dts > index 1345df7cbd00..6b047c679370 100644 > --- a/arch/arm/boot/dts/qcom-apq8074-dragonboard.dts > +++ b/arch/arm/boot/dts/qcom-apq8074-dragonboard.dts > @@ -23,6 +23,10 @@ &blsp1_uart2 { > status = "okay"; > }; > > +&blsp2_dma { > + qcom,controlled-remotely; > +}; > + > &blsp2_i2c5 { > status = "okay"; > clock-frequency = <200000>;