[PATCH v10 0/3] Per-user clock constraints

From: Tomeu Vizoso
Date: Tue Jan 20 2015 - 08:25:26 EST


Hi,

I have addressed here the last comments from Stephen, most notably:

* Add more missing NULL checks

* Remove a few unused functions

* Call nolock variants from __clk_mux_determine_rate

* Refactor __clk_determine_rate to share code with clk_round_rate.

The second patch actually moves the per-clock data that was stored in struct
clk to a new struct clk_core and adds references to it from both struct clk and
struct clk_hw. struct clk is now ready to contain information that is specific
to a given clk consumer.

The third patch adds API for setting floor and ceiling constraints and stores
that information on the per-user struct clk, which is iterable from struct
clk_core. The constraints are made available to clock implementations in the
determine_rate callback.

A rough test module was used to test this:

http://cgit.collabora.com/git/user/tomeu/linux.git/tree/drivers/misc/clk-test.c?h=per-user-clk-constraints-v10

http://cgit.collabora.com/git/user/tomeu/linux.git/log/?h=per-user-clk-constraints-v10

Thanks,

Tomeu

Tomeu Vizoso (3):
clk: Remove unneeded NULL checks
clk: Make clk API return per-user struct clk instances
clk: Add rate constraints to clocks

Documentation/clk.txt | 2 +
arch/arm/mach-omap2/cclock3xxx_data.c | 108 ++--
arch/arm/mach-omap2/clock.h | 11 +-
arch/arm/mach-omap2/clock_common_data.c | 5 +-
arch/arm/mach-omap2/dpll3xxx.c | 2 +
arch/arm/mach-omap2/dpll44xx.c | 2 +
arch/mips/alchemy/common/clock.c | 8 +
drivers/clk/at91/clk-programmable.c | 2 +
drivers/clk/bcm/clk-kona.c | 2 +
drivers/clk/clk-composite.c | 9 +-
drivers/clk/clk.c | 844 ++++++++++++++++++++++----------
drivers/clk/clk.h | 5 +
drivers/clk/clkdev.c | 80 ++-
drivers/clk/hisilicon/clk-hi3620.c | 2 +
drivers/clk/mmp/clk-mix.c | 2 +
drivers/clk/qcom/clk-pll.c | 1 +
drivers/clk/qcom/clk-rcg.c | 10 +-
drivers/clk/qcom/clk-rcg2.c | 6 +
drivers/clk/sunxi/clk-factors.c | 2 +
drivers/clk/sunxi/clk-sun6i-ar100.c | 2 +
include/linux/clk-private.h | 41 +-
include/linux/clk-provider.h | 27 +-
include/linux/clk.h | 28 ++
include/linux/clk/ti.h | 4 +
24 files changed, 865 insertions(+), 340 deletions(-)

--
1.9.3

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