[PATCH v4 0/8] Per-user clock constraints

From: Tomeu Vizoso
Date: Mon Oct 20 2014 - 09:41:32 EST


Hello,

this fourth version of the series is mainly intended to address many good
comments from Stephen Boyd, most notably:

* Make sure that best_parent_p is populated with the current parent before
calling clk_ops.determine_rate()

* Make sure we don't lose information about the caller in of_clk_get_*

* Refresh the effective rate after a per-user clk is removed

* Store requested rate and re-apply it when constraints are updated

The first six patches are just cleanups that should be desirable on their own,
and that should make easier to review the actual per-user clock patch.

The seventh 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 eighth 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.

They are based on top of 3.18-rc1.

http://cgit.collabora.com/git/user/tomeu/linux.git/log/?h=per-user-clk-constraints-v4

Thanks,

Tomeu

Tomeu Vizoso (8):
MIPS: Alchemy: Remove direct access to prepare_count field of struct
clk
clk: Remove unused function __clk_get_prepare_count
clk: Don't try to use a struct clk* after it could have been freed
clk: Don't expose __clk_get_accuracy
clk: change clk_debugfs_add_file to take a struct clk_hw
clk: Change clk_ops->determine_rate to return a clk_hw as the best
parent
clk: Make clk API return per-user struct clk instances
clk: Add floor and ceiling constraints to clock rates

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/mips/alchemy/common/clock.c | 17 +-
drivers/clk/at91/clk-programmable.c | 4 +-
drivers/clk/bcm/clk-kona.c | 4 +-
drivers/clk/clk-composite.c | 9 +-
drivers/clk/clk.c | 788 +++++++++++++++++++++-----------
drivers/clk/clk.h | 5 +
drivers/clk/clkdev.c | 73 ++-
drivers/clk/hisilicon/clk-hi3620.c | 2 +-
drivers/clk/qcom/clk-rcg.c | 20 +-
drivers/clk/qcom/clk-rcg2.c | 28 +-
drivers/clk/sunxi/clk-factors.c | 4 +-
drivers/clk/sunxi/clk-sun6i-ar100.c | 4 +-
include/linux/clk-private.h | 41 +-
include/linux/clk-provider.h | 17 +-
include/linux/clk.h | 18 +
19 files changed, 771 insertions(+), 389 deletions(-)

--
1.9.3

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