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[83.9.1.44]) by smtp.gmail.com with ESMTPSA id a16-20020a056512201000b004b40f5e7336sm735576lfb.199.2022.12.14.01.55.47 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 14 Dec 2022 01:55:48 -0800 (PST) Message-ID: <005d073c-a937-5ef8-a97b-09bc17d6f354@linaro.org> Date: Wed, 14 Dec 2022 10:55:46 +0100 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.6.0 Subject: Re: [PATCH 1/2] dt-bindings: reserved-memory: rmtfs: Document qcom,assign-to-nav To: Krzysztof Kozlowski , linux-arm-msm@vger.kernel.org, andersson@kernel.org, agross@kernel.org Cc: marijn.suijten@somainline.org, Rob Herring , Krzysztof Kozlowski , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org References: <20221213170340.456252-1-konrad.dybcio@linaro.org> Content-Language: en-US From: Konrad Dybcio In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org On 14.12.2022 09:11, Krzysztof Kozlowski wrote: > On 13/12/2022 18:03, Konrad Dybcio wrote: >> Some SoCs mandate that the RMTFS is also assigned to the NAV VM, while >> others really don't want that. Since it has to be conditional, add a >> bool property to toggle this behavior. >> >> Signed-off-by: Konrad Dybcio >> --- >> .../devicetree/bindings/reserved-memory/qcom,rmtfs-mem.yaml | 5 +++++ >> 1 file changed, 5 insertions(+) >> >> diff --git a/Documentation/devicetree/bindings/reserved-memory/qcom,rmtfs-mem.yaml b/Documentation/devicetree/bindings/reserved-memory/qcom,rmtfs-mem.yaml >> index 2998f1c8f0db..1d8c4621178a 100644 >> --- a/Documentation/devicetree/bindings/reserved-memory/qcom,rmtfs-mem.yaml >> +++ b/Documentation/devicetree/bindings/reserved-memory/qcom,rmtfs-mem.yaml >> @@ -31,6 +31,11 @@ properties: >> description: > >> vmid of the remote processor, to set up memory protection >> >> + qcom,assign-to-nav: >> + type: boolean >> + description: > > > No need for '>' > >> + whether to also assign the region to the NAV VM > > Here and in property name you express desired Linux driver action, but > it is better to express the property of the hardware. What is > different/special in these SoCs or their configuration that additional > assignment is needed? Honestly, I have no clue.. probably there's something more complex than was there before connected to GPS.. Konrad > > > Best regards, > Krzysztof >