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[75.72.117.212]) by smtp.googlemail.com with ESMTPSA id 46e09a7af769-7d4a771bcebsm16698857a34.25.2026.02.17.10.01.15 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 17 Feb 2026 10:01:16 -0800 (PST) Message-ID: <6160ac44-dba3-400c-96cf-ec03393cc141@ieee.org> Date: Tue, 17 Feb 2026 12:01:14 -0600 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH net-next v3 1/3] dt-bindings: sram: qcom,imem: Allow modem-tables subnode To: Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Bjorn Andersson , Andrew Lunn , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Alex Elder Cc: Marijn Suijten , linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, Konrad Dybcio References: <20260217-topic-ipa_imem-v3-0-d6d8ed1dfb67@oss.qualcomm.com> <20260217-topic-ipa_imem-v3-1-d6d8ed1dfb67@oss.qualcomm.com> Content-Language: en-US From: Alex Elder In-Reply-To: <20260217-topic-ipa_imem-v3-1-d6d8ed1dfb67@oss.qualcomm.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 2/17/26 7:30 AM, Konrad Dybcio wrote: > From: Konrad Dybcio > > The IP Accelerator hardware/firmware owns a sizeable region within the > IMEM, named 'modem-tables', containing various packet processing > configuration data. > > It's not actually accessed by the OS, although we have to IOMMU-map it > with the IPA device, so that presumably the firmware can act upon it. > > Allow it as a subnode of IMEM. OK so you'll define a "modem-tables@" property in the SRAM node, whose phandle will then be referred to by the "sram" property in the IPA node. That sounds good to me. Thanks Konrad. Reviewed-by: Alex Elder > > Signed-off-by: Konrad Dybcio > --- > Documentation/devicetree/bindings/sram/qcom,imem.yaml | 14 ++++++++++++++ > 1 file changed, 14 insertions(+) > > diff --git a/Documentation/devicetree/bindings/sram/qcom,imem.yaml b/Documentation/devicetree/bindings/sram/qcom,imem.yaml > index 6a627c57ae2f..c63026904061 100644 > --- a/Documentation/devicetree/bindings/sram/qcom,imem.yaml > +++ b/Documentation/devicetree/bindings/sram/qcom,imem.yaml > @@ -67,6 +67,20 @@ properties: > $ref: /schemas/power/reset/syscon-reboot-mode.yaml# > > patternProperties: > + "^modem-tables@[0-9a-f]+$": > + type: object > + description: > + Region containing packet processing configuration for the IP Accelerator. > + > + properties: > + reg: > + maxItems: 1 > + > + required: > + - reg > + > + additionalProperties: false > + > "^pil-reloc@[0-9a-f]+$": > $ref: /schemas/remoteproc/qcom,pil-info.yaml# > description: Peripheral image loader relocation region >