From: Chunyan Zhang <zhang.chunyan@xxxxxxxxxx> This series adds Spreadtrum clock support together with its binding documentation and devicetree data. Any comments would be greatly appreciated. Thanks, Chunyan Changes from V6: (https://lkml.org/lkml/2017/11/27/217) * Changed to use "//" format for the file header * Addressed Stephen's comments: - Put the common macros in clk-provider.h instead of clk_common.h, also removed the same macros from sunxi-ng/ccu_common.h and zte/clk.h; - Removed CLK_FIXED_RATE(), and moved the fixed rate clocks from driver to DT; - Use devm_of_clk_add_hw_provider() instead; - Removed sprd_regmap_{read|write}(), use regmap API directly; - Removed all full stop on error messages. * Use IS_ERR_OR_NULL() instead of IS_ERR() for checking regmap pointers; Changes from V5: (https://lkml.org/lkml/2017/11/20/21) * Rebased the whole patch-set to 4.15-rc1; * Fixed kbuild-test warnings; * Switched to use devm_clk_hw_register() instead of clk_hw_register(); * Removed useless debug information from sc9860-clk.c. Changes from V4: (https://lkml.org/lkml/2017/11/10/30) * Added acked-by of Rob Herring; * Removed spin lock from Spreadtrum's gate, mux, div drivers, since we have switched to use regmap. Changes from V3: (https://lkml.org/lkml/2017/11/2/61) * Addressed comments from Julien Thierry: - Clean the if branch of sprd_mux_helper_get_parent() - Have the Gate clock macros and ops for both mode (i.e. sc_gate and gate) separate; - Have the Mux clock macros with/without table separate, and same changes for the composite clock. * Switched the function name from _endisable to _toggle; * Fixed Kbuild test error: - Added exporting sprd_clk_regmap_init() which would be used in other module(s); * Change the function sprd_clk_set_regmap() to the static one, and removed the declear from the include file; * Addressed comments from Rob: - Separate the dt-binding include file from the driver patch; - Documented more for the property "clocks" * Changed the syscon device names; * Changed the name of 'sprd_mux_internal' to 'sprd_mux_ssel' Changes from V2: (http://lkml.iu.edu/hypermail/linux/kernel/1707.1/01504.html) * Switch to use regmap to access registers; * Splited all clocks into 16 separated nodes, for each belongs to a single address area; * Rearranged the order of clock declaration in sc9860-clk.c, sorted them upon the address area; * Added syscon device tree nodes which will be quoted by the node of clocks which are in the same address area with the syscon device; * Revised the binding documentation according to the dt modification. 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 get 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 unnecessery 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 Chunyan Zhang (12): drivers: move clock common macros out from vendor directories 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 dt-bindings: Add Spreadtrum clock binding documentation clk: sprd: Add dt-bindings include file for SC9860 clk: sprd: add clocks support for SC9860 arm64: dts: add syscon for whale2 platform arm64: dts: add clocks for SC9860 Documentation/devicetree/bindings/clock/sprd.txt | 63 + arch/arm64/boot/dts/sprd/sc9860.dtsi | 115 ++ arch/arm64/boot/dts/sprd/whale2.dtsi | 62 +- drivers/clk/Kconfig | 1 + drivers/clk/Makefile | 1 + drivers/clk/sprd/Kconfig | 14 + drivers/clk/sprd/Makefile | 11 + drivers/clk/sprd/common.c | 96 ++ drivers/clk/sprd/common.h | 38 + drivers/clk/sprd/composite.c | 60 + drivers/clk/sprd/composite.h | 51 + drivers/clk/sprd/div.c | 90 + drivers/clk/sprd/div.h | 75 + drivers/clk/sprd/gate.c | 111 ++ drivers/clk/sprd/gate.h | 59 + drivers/clk/sprd/mux.c | 76 + drivers/clk/sprd/mux.h | 74 + drivers/clk/sprd/pll.c | 266 +++ drivers/clk/sprd/pll.h | 108 ++ drivers/clk/sprd/sc9860-clk.c | 1974 ++++++++++++++++++++++ drivers/clk/sunxi-ng/ccu_common.h | 29 - drivers/clk/zte/clk.h | 18 - include/dt-bindings/clock/sprd,sc9860-clk.h | 404 +++++ include/linux/clk-provider.h | 38 + 24 files changed, 3785 insertions(+), 49 deletions(-) create mode 100644 Documentation/devicetree/bindings/clock/sprd.txt 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
