ARM: rockchip: add cpuclk handling - clock-tree part

A patchset in state Mainline for linux-kernel

From: Heiko Stuebner <heiko@...> Date: Fri, 26 Sep 2014 20:09:46 +0200

This series implements cpu frequency-scaling for Rockchip SoCs. The whole handling of the armclk frequency changes and therefore the implementention is very similar to the recent series for Samsung SoCs from Thomas Abraham. Tested on a - rk3066 Marsboard - rk3188 Radxa Rock - rk3288 Evaluation board This is the part that would go through the clock tree and the patches are build against current clk-next. ------- On the arm-soc side we would need the ARMCLK id in an exported branch from the clk tree so that the devicetree changes can use this new id. But as 3.17 is supposed to be released this weekend, the devicetree parts will maybe have to wait for 3.18-rc1 in any case. ------- The series also is split, as clk-next and the arm-soc parts have diverged so much, that it's not possible to create one series against one tree and stay sane. changes since v3: - address more comments from Doug Anderson: main change setting the dividers in the post_rate callback - use __initdata for the rate tables While it could use __initconst the current code causes a section type conflict with something else, so this could possibly be solved at a later time changes since v2: - add patch removing the pll clk-notifier - in cpuclk do parent change and alt_div setting in one go changes since v1: - address comments received concerning smaller issues - split series into two, one for clk-next and one for arm-soc Doug Anderson (1): clk: rockchip: change pll rate without a clk-notifier Heiko Stuebner (6): clk: rockchip: fix rk3066 pll status register location clk: rockchip: reparent aclk_cpu_pre to the gpll clk: rockchip: make tightly bound armclk child-clocks read-only clk: rockchip: add new clock-type for the cpuclk clk: rockchip: add binding id for ARMCLK clk: rockchip: switch to using the new cpuclk type for armclk Jianqun (1): clk: rockchip: fix rk3288 pll status register location drivers/clk/rockchip/Makefile | 1 + drivers/clk/rockchip/clk-cpu.c | 329 ++++++++++++++++++++++++++ drivers/clk/rockchip/clk-pll.c | 63 +---- drivers/clk/rockchip/clk-rk3188.c | 161 +++++++++++-- drivers/clk/rockchip/clk-rk3288.c | 93 +++++++- drivers/clk/rockchip/clk.c | 20 ++ drivers/clk/rockchip/clk.h | 36 +++ include/dt-bindings/clock/rk3188-cru-common.h | 1 + include/dt-bindings/clock/rk3288-cru.h | 1 + 9 files changed, 627 insertions(+), 78 deletions(-) create mode 100644 drivers/clk/rockchip/clk-cpu.c -- 2.1.0

Patches in this set


  • 8 individual patches
  • 629 lines added
  • 78 lines removed

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