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[217.229.29.98]) by smtp.gmail.com with ESMTPSA id k23sm3956675wmi.46.2020.04.09.10.52.43 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 09 Apr 2020 10:52:43 -0700 (PDT) From: Thierry Reding To: Thierry Reding , Rob Herring Cc: Jon Hunter , Dmitry Osipenko , Michael Turquette , Stephen Boyd , Joseph Lo , linux-tegra@vger.kernel.org, devicetree@vger.kernel.org, linux-clk@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH v6 00/14] Add EMC scaling support for Tegra210 Date: Thu, 9 Apr 2020 19:52:24 +0200 Message-Id: <20200409175238.3586487-1-thierry.reding@gmail.com> X-Mailer: git-send-email 2.24.1 MIME-Version: 1.0 Sender: linux-tegra-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-tegra@vger.kernel.org From: Thierry Reding This series introduces the EMC clock scaling support for Tegra210. The EMC table of supported frequencies is passed to the kernel via a device tree reserved memory region. Joseph posted the v4 of this series[0] about a year ago. I've dusted it off a bit and tried to address all of the comments that Dmitry had made in response to v4. Changes in v6: - add support for derated tables which are used under high temperatures - add patches to support memory-region-names property in DT - address review comments Changes in v5: - major rework to split this into a clk driver and an EMC driver - refactored some code to remove duplication and improve readability - removed some unused code and variables Thierry [0]: https://lore.kernel.org/linux-arm-kernel/20190529082139.5581-1-josephl@nvidia.com/ Joseph Lo (8): clk: tegra: Add PLLP_UD and PLLMB_UD for Tegra210 clk: tegra: Export functions for EMC clock scaling clk: tegra: Implement Tegra210 EMC clock dt-bindings: memory: tegra: Add external memory controller binding for Tegra210 memory: tegra: Add EMC scaling support code for Tegra210 memory: tegra: Add EMC scaling sequence code for Tegra210 arm64: tegra: Add external memory controller node for Tegra210 clk: tegra: Remove the old emc_mux clock for Tegra210 Thierry Reding (6): dt-bindings: reserved-memory: Introduce memory-region-names of: reserved-memory: Support lookup of regions by name of: reserved-memory: Support multiple regions per device clk: tegra: Rename Tegra124 EMC clock source file memory: tegra: Support derated timings on Tegra210 arm64: tegra: Hook up EMC cooling device .../nvidia,tegra210-emc.yaml | 82 + .../reserved-memory/reserved-memory.txt | 2 + arch/arm64/boot/dts/nvidia/tegra210.dtsi | 37 +- drivers/clk/tegra/Makefile | 3 +- .../tegra/{clk-emc.c => clk-tegra124-emc.c} | 0 drivers/clk/tegra/clk-tegra210-emc.c | 369 +++ drivers/clk/tegra/clk-tegra210.c | 87 +- drivers/clk/tegra/clk.h | 3 + drivers/memory/tegra/Kconfig | 14 + drivers/memory/tegra/Makefile | 4 + drivers/memory/tegra/mc.h | 1 + drivers/memory/tegra/tegra210-emc-cc-r21021.c | 1744 ++++++++++++++ drivers/memory/tegra/tegra210-emc-core.c | 2099 +++++++++++++++++ drivers/memory/tegra/tegra210-emc-table.c | 94 + drivers/memory/tegra/tegra210-emc.h | 1023 ++++++++ drivers/memory/tegra/tegra210-mc.h | 49 + drivers/of/of_reserved_mem.c | 41 +- include/dt-bindings/clock/tegra210-car.h | 4 +- include/linux/clk/tegra.h | 27 + include/linux/of_reserved_mem.h | 11 + 20 files changed, 5656 insertions(+), 38 deletions(-) create mode 100644 Documentation/devicetree/bindings/memory-controllers/nvidia,tegra210-emc.yaml rename drivers/clk/tegra/{clk-emc.c => clk-tegra124-emc.c} (100%) create mode 100644 drivers/clk/tegra/clk-tegra210-emc.c create mode 100644 drivers/memory/tegra/tegra210-emc-cc-r21021.c create mode 100644 drivers/memory/tegra/tegra210-emc-core.c create mode 100644 drivers/memory/tegra/tegra210-emc-table.c create mode 100644 drivers/memory/tegra/tegra210-emc.h create mode 100644 drivers/memory/tegra/tegra210-mc.h