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[83.9.29.16]) by smtp.gmail.com with ESMTPSA id y26-20020ac2447a000000b004db25f2c103sm142318lfl.86.2023.03.10.17.21.40 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 10 Mar 2023 17:21:41 -0800 (PST) From: Konrad Dybcio Subject: [PATCH RFC 00/15] Convert Qualcomm RPM message RAM to a simple-mfd Date: Sat, 11 Mar 2023 02:21:30 +0100 Message-Id: <20230311-topic-msg_ram-v1-0-e9c2094daf09@linaro.org> MIME-Version: 1.0 X-B4-Tracking: v=1; b=H4sIAJrXC2QC/x2NQQrCQAwAv1JyNtDdBSleBR/gVYpkY2wD7bZkV YTSvxs8zsAwG1QxlQqnZgOTj1ZdikM4NMAjlUFQH84Q25jaFAK+llUZ5zrcjWY85i4xdSGyMHi TqQpmo8KjV+U9TS5Xk6d+/5MbXC9n6Pf9B75+E8J5AAAA To: Andy Gross , Bjorn Andersson , Lee Jones , Rob Herring , Krzysztof Kozlowski Cc: Rob Herring , linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Konrad Dybcio X-Mailer: b4 0.12.1 X-Developer-Signature: v=1; a=ed25519-sha256; t=1678497700; l=3004; i=konrad.dybcio@linaro.org; s=20230215; h=from:subject:message-id; bh=Uq6nFpabusoC58q8pSGW5x4YCbTHeNtUHKsbt6Eq17E=; b=BvVDj6jzdTLhxkxpn2Qw6SXaLcpuQC36eScnwOAh1u/tAjXrFl2KZPXQ+iUkD72ChfuTPos9+b6P LTjZRDtLD4JnnS0Imb5BKWm3nPB8UKtT0PYysBlSs1GY/RcWLVcP X-Developer-Key: i=konrad.dybcio@linaro.org; a=ed25519; pk=iclgkYvtl2w05SSXO5EjjSYlhFKsJ+5OSZBjOkQuEms= Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org The Qualcomm RPM message RAM is a part of the RPM low-power processor's actual RAM that's exposed to the Application Processors as a MMIO-mapped region. It contains a couple of things, most notably the RPM master stats, detailing per-master (read: per-subsystem) sleep/wake statistics and an interrupt controller that's crucial to achieving full SoC clock and/or power collapse states (the MPM). This series tries to prepare the MSG RAM node to be a host for such devices. Depends on https://lore.kernel.org/linux-arm-msm/20230308011705.291337-1-konrad.dybcio@linaro.org/ to solve a warning in the example. The DTS commits don't add -cells or -ranges, as without children they're not of very much use. They'll be introduced along with subnodes. Signed-off-by: Konrad Dybcio --- Konrad Dybcio (15): dt-bindings: mfd: Split out Qcom RPM MSG RAM arm64: dts: qcom: msm8916: Add simple-mfd to rpm_msg_ram arm64: dts: qcom: msm8953: Add simple-mfd to rpm_msg_ram arm64: dts: qcom: msm8976: Add simple-mfd to rpm_msg_ram arm64: dts: qcom: msm8994: Add simple-mfd to rpm_msg_ram arm64: dts: qcom: msm8996: Add simple-mfd to rpm_msg_ram arm64: dts: qcom: msm8998: Add simple-mfd to rpm_msg_ram arm64: dts: qcom: qcs404: Add simple-mfd to rpm_msg_ram arm64: dts: qcom: sdm630: Add simple-mfd to rpm_msg_ram arm64: dts: qcom: sm6115: Add simple-mfd to rpm_msg_ram arm64: dts: qcom: sm6125: Add simple-mfd to rpm_msg_ram arm64: dts: qcom: sm6375: Add simple-mfd to rpm_msg_ram ARM: dts: qcom-apq8084: Add simple-mfd to rpm_msg_ram ARM: dts: qcom-msm8226: Add simple-mfd to rpm_msg_ram ARM: dts: qcom-msm8974: Add simple-mfd to rpm_msg_ram .../devicetree/bindings/mfd/qcom,rpm-msg-ram.yaml | 82 ++++++++++++++++++++++ Documentation/devicetree/bindings/sram/sram.yaml | 2 - arch/arm/boot/dts/qcom-apq8084.dtsi | 2 +- arch/arm/boot/dts/qcom-msm8226.dtsi | 2 +- arch/arm/boot/dts/qcom-msm8974.dtsi | 2 +- arch/arm64/boot/dts/qcom/msm8916.dtsi | 2 +- arch/arm64/boot/dts/qcom/msm8953.dtsi | 2 +- arch/arm64/boot/dts/qcom/msm8976.dtsi | 2 +- arch/arm64/boot/dts/qcom/msm8994.dtsi | 2 +- arch/arm64/boot/dts/qcom/msm8996.dtsi | 2 +- arch/arm64/boot/dts/qcom/msm8998.dtsi | 2 +- arch/arm64/boot/dts/qcom/qcs404.dtsi | 2 +- arch/arm64/boot/dts/qcom/sdm630.dtsi | 2 +- arch/arm64/boot/dts/qcom/sm6115.dtsi | 2 +- arch/arm64/boot/dts/qcom/sm6125.dtsi | 2 +- arch/arm64/boot/dts/qcom/sm6375.dtsi | 2 +- 16 files changed, 96 insertions(+), 16 deletions(-) --- base-commit: 24469a0e5052ba01a35a15f104717a82b7a4798b change-id: 20230311-topic-msg_ram-6b83ca812cec Best regards,