This is a rewrite of Spreadtrum's original clock driver[1] according to the comments[2] from Stephen Boyd. This series adds Spreadtrum clock support together with its binding documentation and devicetree data. Any comments would be greatly appreciated. Thanks, Chunyan Changes from V1 (https://lkml.org/lkml/2017/6/17/356): * Address Stephen's comments: - Switch to use platform device driver instead of the DT probing mechanism. - Move the common clock macro out from vendor directory, but need to remove those overlap code from other vendors (such as sunxi-ng) once this gets merged. - Add support to be built as a module. - Add 'sprd_' prefix for all spin locks used in these drivers. - Mark input parameter of sprd_x with const. - Remove unreasonable dependencies to CONFIG_64BIT. - Add readl() after writing the same register. - Remove CLK_IS_BASIC which is no longer used. - Remove unnecessary CLK_IGNORE_UNUSED when defining a clock. - Change to expose all clock index. - Use clk_ instead of ccu. - Add Kconfig for sprd clocks. - Move the fixed clocks out from the soc node. - Switch to use 64-bit math in pll driver instead of 32-bit math. * Revise binding documentation according to dt modification. * Rename sc9860.c to sc9860-clk.c [1] https://lwn.net/Articles/722739/ [2] https://www.spinics.net/lists/arm-kernel/msg582017.html Chunyan Zhang (10): drivers: move clock common macros out from vendor directories dt-bindings: Add Spreadtrum clock binding documentation clk: sprd: Add common infrastructure clk: sprd: add gate clock support clk: sprd: add mux clock support clk: sprd: add divider clock support clk: sprd: add composite clock support clk: sprd: add adjustable pll support clk: sprd: add clocks support for SC9860 arm64: dts: add clocks for SC9860 Documentation/devicetree/bindings/clock/sprd.txt | 36 + arch/arm64/boot/dts/sprd/sc9860.dtsi | 22 + arch/arm64/boot/dts/sprd/whale2.dtsi | 3 +- drivers/clk/Kconfig | 1 + drivers/clk/Makefile | 1 + drivers/clk/clk_common.h | 60 + drivers/clk/sprd/Kconfig | 14 + drivers/clk/sprd/Makefile | 11 + drivers/clk/sprd/common.c | 83 ++ drivers/clk/sprd/common.h | 56 + drivers/clk/sprd/composite.c | 64 + drivers/clk/sprd/composite.h | 47 + drivers/clk/sprd/div.c | 98 ++ drivers/clk/sprd/div.h | 77 + drivers/clk/sprd/gate.c | 104 ++ drivers/clk/sprd/gate.h | 58 + drivers/clk/sprd/mux.c | 86 ++ drivers/clk/sprd/mux.h | 63 + drivers/clk/sprd/pll.c | 236 +++ drivers/clk/sprd/pll.h | 133 ++ drivers/clk/sprd/sc9860-clk.c | 1726 ++++++++++++++++++++++ include/dt-bindings/clock/sprd,sc9860-clk.h | 375 +++++ 22 files changed, 3352 insertions(+), 2 deletions(-) create mode 100644 Documentation/devicetree/bindings/clock/sprd.txt create mode 100644 drivers/clk/clk_common.h create mode 100644 drivers/clk/sprd/Kconfig create mode 100644 drivers/clk/sprd/Makefile create mode 100644 drivers/clk/sprd/common.c create mode 100644 drivers/clk/sprd/common.h create mode 100644 drivers/clk/sprd/composite.c create mode 100644 drivers/clk/sprd/composite.h create mode 100644 drivers/clk/sprd/div.c create mode 100644 drivers/clk/sprd/div.h create mode 100644 drivers/clk/sprd/gate.c create mode 100644 drivers/clk/sprd/gate.h create mode 100644 drivers/clk/sprd/mux.c create mode 100644 drivers/clk/sprd/mux.h create mode 100644 drivers/clk/sprd/pll.c create mode 100644 drivers/clk/sprd/pll.h create mode 100644 drivers/clk/sprd/sc9860-clk.c create mode 100644 include/dt-bindings/clock/sprd,sc9860-clk.h -- 2.7.4 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
