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[80.180.23.57]) by smtp.gmail.com with ESMTPSA id q2-20020a1709063d4200b0082ddfb47d06sm12273018ejf.148.2023.01.01.09.57.43 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 01 Jan 2023 09:57:46 -0800 (PST) From: Dario Binacchi To: linux-kernel@vger.kernel.org Cc: angelo@amarulasolutions.com, michael@amarulasolutions.com, tommaso.merciai@amarulasolutions.com, Chen-Yu Tsai , linux-amarula@amarulasolutions.com, anthony@amarulasolutions.com, jagan@amarulasolutions.com, Dario Binacchi , Abel Vesa , Adam Ford , Fabio Estevam , Krzysztof Kozlowski , Li Jun , Lucas Stach , Marek Vasut , Markus Niebel , Michael Turquette , NXP Linux Team , Pengutronix Kernel Team , Rob Herring , Sascha Hauer , Shawn Guo , Stephen Boyd , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-clk@vger.kernel.org Subject: [RFC PATCH v2 00/11] clk: imx8mn: setup clocks from the device tree Date: Sun, 1 Jan 2023 18:57:29 +0100 Message-Id: <20230101175740.1010258-1-dario.binacchi@amarulasolutions.com> X-Mailer: git-send-email 2.32.0 MIME-Version: 1.0 X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_NONE, SPF_HELO_NONE,SPF_PASS autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1753843936303509302?= X-GMAIL-MSGID: =?utf-8?q?1753843936303509302?= The idea for this series was born back from Dublin (ELCE 2022) after having attended the talk entitled "Updating and Modernizing Clock Drivers" held by Chen-Yu Tsai and the availability of a board with imx8mn SOC. This series aims to setup all imx8mn's clocks from the device tree and remove the legacy setup code with hardwired parameters. I am well aware that the series lacks patches for the DT bindings. The effort up to this point has been important and so I thought I'd ask for feedback from the community before proceeding to implement them. If it is positive I will add the DT binding patches starting from version 2. The series has been tested on the BSH SystemMaster (SMM) S2 board: https://www.apertis.org/reference_hardware/imx8mn_bsh_smm_s2pro_setup Changes in v2: - Fix compiler warnings reported by kernel test robot. Dario Binacchi (11): clk: imx: add structure to extend register accesses clk: imx: add clk_hw based API imx_get_clk_hw_from_dt() clk: imx8mn: add gate driver clk: imx8mn: add mux driver clk: imx8mn: add divider driver clk: imx: pll14xx: add device tree support clk: imx: composite-8m: add device tree support clk: imx: gate2: add device tree support clk: imx: cpu: add device tree support arm64: dts: imx8mn: add dumy clock arm64: dts: imx8mn: add clocks description .../boot/dts/freescale/imx8mn-clocks.dtsi | 1885 +++++++++++++++++ arch/arm64/boot/dts/freescale/imx8mn.dtsi | 51 +- drivers/clk/imx/Makefile | 3 + drivers/clk/imx/clk-composite-8m.c | 84 + drivers/clk/imx/clk-cpu.c | 54 + drivers/clk/imx/clk-divider.c | 235 ++ drivers/clk/imx/clk-gate.c | 156 ++ drivers/clk/imx/clk-gate2.c | 86 + drivers/clk/imx/clk-imx8mn.c | 716 ++----- drivers/clk/imx/clk-mux.c | 258 +++ drivers/clk/imx/clk-pll14xx.c | 220 +- drivers/clk/imx/clk.c | 21 + drivers/clk/imx/clk.h | 15 + 13 files changed, 3177 insertions(+), 607 deletions(-) create mode 100644 arch/arm64/boot/dts/freescale/imx8mn-clocks.dtsi create mode 100644 drivers/clk/imx/clk-divider.c create mode 100644 drivers/clk/imx/clk-gate.c create mode 100644 drivers/clk/imx/clk-mux.c