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[31.187.140.150]) by smtp.gmail.com with ESMTPSA id q5-20020aa7cc05000000b0052a1a623267sm3835534edt.62.2023.09.16.13.32.04 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sat, 16 Sep 2023 13:32:05 -0700 (PDT) Message-ID: Date: Sat, 16 Sep 2023 22:32:04 +0200 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.15.0 Subject: Re: [PATCH v2 8/8] arm64: defconfig: enable interconnect and pinctrl for SM4450 Content-Language: en-US To: Georgi Djakov , Trilok Soni , Tengfei Fan , will@kernel.org, robin.murphy@arm.com, joro@8bytes.org, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, conor+dt@kernel.org, agross@kernel.org, andersson@kernel.org, konrad.dybcio@linaro.org, catalin.marinas@arm.com Cc: geert+renesas@glider.be, arnd@arndb.de, neil.armstrong@linaro.org, nfraprado@collabora.com, rafal@milecki.pl, peng.fan@nxp.com, linux-arm-kernel@lists.infradead.org, iommu@lists.linux.dev, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, quic_shashim@quicinc.com, quic_kaushalk@quicinc.com, quic_tdas@quicinc.com, quic_tingweiz@quicinc.com, quic_aiquny@quicinc.com, kernel@quicinc.com References: <20230915021509.25773-1-quic_tengfan@quicinc.com> <20230915021509.25773-10-quic_tengfan@quicinc.com> <8f2c9664-a2c8-50dc-8a1c-e50a071ebeb2@linaro.org> <0a34dd35-7aea-4655-4cdd-e7196a1ba52b@linaro.org> <01c020ae-a019-e4eb-14cb-64503bde05a6@quicinc.com> <212f9bfa-6d4c-bba2-60d2-272c001a4322@quicinc.com> From: Krzysztof Kozlowski In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org On 16/09/2023 17:13, Georgi Djakov wrote: > >> >> Complete list here, and it is inconsistent. Latest 8550 is also =y. Do we document >> the reasons somewhere on why they are added as =y? >> >> CONFIG_INTERCONNECT_QCOM=y >> CONFIG_INTERCONNECT_QCOM_MSM8916=m >> CONFIG_INTERCONNECT_QCOM_MSM8996=m >> CONFIG_INTERCONNECT_QCOM_OSM_L3=m >> CONFIG_INTERCONNECT_QCOM_QCM2290=m >> CONFIG_INTERCONNECT_QCOM_QCS404=m >> CONFIG_INTERCONNECT_QCOM_SA8775P=y >> CONFIG_INTERCONNECT_QCOM_SC7180=y >> CONFIG_INTERCONNECT_QCOM_SC7280=y >> CONFIG_INTERCONNECT_QCOM_SC8180X=y >> CONFIG_INTERCONNECT_QCOM_SC8280XP=y >> CONFIG_INTERCONNECT_QCOM_SDM845=y >> CONFIG_INTERCONNECT_QCOM_SM8150=m >> CONFIG_INTERCONNECT_QCOM_SM8250=m >> CONFIG_INTERCONNECT_QCOM_SM8350=m >> CONFIG_INTERCONNECT_QCOM_SM8450=y >> CONFIG_INTERCONNECT_QCOM_SM8550=y > > If the device can boot (to console/initramfs) with =m, we go with that. > But if something critical like the UART depends on the interconnect > provider, then we make it built-in. > > On SM8550 for example, we have enabled bandwidth scaling support for QUP > and that's why it needs to be =y. > > It looks like on SM4450 this should be =y too. I asked why SM4450 has to be =y and there was no answer. The argument that SM8450 is a module, is not applicable. Best regards, Krzysztof