This patch series provides the implementation for Exynos850 clock driver, its documentation and corresponding changes for Samsung clock infrastructure: - Adds new PLL types used in Exynos850 SoC, following TRM - Enables bus clock for each registered CMU, if it's provided I tried to follow already established design for Samsung clock drivers (getting most insights from Exynos7 and Exynos5433 clock drivers), and integrate the driver in existing infrastructure. The whole driver was implemented from scratch, using mostly TRM. For now only basic clocks are implemented, including next blocks: - CMU_TOP - CMU_PERI - CMU_CORE - CMU_HSI Some CMUs are still not implemented, but that can be added in future, when the need arises. The driver also lacks CLKOUT support, PM ops and automatic clocks control (using Q-Channel protocol). All that can be added independently later. Implemented clock tree was tested via UART and MMC drivers, and using DebugFS clk support (e.g. using 'clk_summary' file). In order to keep all clocks running I added 'clk_ignore_unused' kernel param in my local tree, and defined CLOCK_ALLOW_WRITE_DEBUGFS in clk.c for actually testing clocks via DebugFS. Sam Protsenko (6): clk: samsung: Enable bus clock on init clk: samsung: clk-pll: Implement pll0822x PLL type clk: samsung: clk-pll: Implement pll0831x PLL type dt-bindings: clock: Add bindings definitions for Exynos850 CMU dt-bindings: clock: Document Exynos850 CMU bindings clk: samsung: Introduce Exynos850 clock driver .../clock/samsung,exynos850-clock.yaml | 190 +++++ drivers/clk/samsung/Makefile | 1 + drivers/clk/samsung/clk-exynos850.c | 700 ++++++++++++++++++ drivers/clk/samsung/clk-pll.c | 196 +++++ drivers/clk/samsung/clk-pll.h | 2 + drivers/clk/samsung/clk.c | 13 + include/dt-bindings/clock/exynos850.h | 72 ++ 7 files changed, 1174 insertions(+) create mode 100644 Documentation/devicetree/bindings/clock/samsung,exynos850-clock.yaml create mode 100644 drivers/clk/samsung/clk-exynos850.c create mode 100644 include/dt-bindings/clock/exynos850.h -- 2.30.2
