[PATCH v3 0/5] clk: bcm: prerequisite and bus clock support
elder at linaro.org
Thu May 29 07:05:56 PDT 2014
Currently only peripheral clocks are supported for Broadcom platforms
that use Kona style CCUs for clocking. This series adds support for
bus clocks as well.
One motivation for doing this is that there exist peripheral clocks
that cannot be configured without having first initialized a related
bus clock. Adding bus clock support allows such peripheral clocks
to be usable.
This also imposes a new requirement, however--that the bus clock
be initialized *before* the clock that depends on it. For this,
we define the notion of a "prerequisite" clock. If a clock has a
prerequisite specified, that prequisite clock will be initialized
first. For now this only affects startup-time initialization.
These patches are based on Mike Turquette's current "clk-next"
4c8f806 Merge branch 'clk-fixes' into clk-next
They are available here:
v3: - Deleted unused clk_lookup field from struct kona_clk
- Now use term "initialized" rather than "enabled"
v2: - Added field "p" to the previously unnamed prereq union.
Alex Elder (5):
clk: bcm281xx: add an initialized flag
clk: bcm281xx: implement prerequisite clocks
clk: bcm281xx: add bus clock support
clk: bcm281xx: define a bus clock
ARM: dts: add bus clock bsc3_apb for bcm281xx
arch/arm/boot/dts/bcm11351.dtsi | 3 +-
drivers/clk/bcm/clk-bcm281xx.c | 13 +++-
drivers/clk/bcm/clk-kona-setup.c | 96 +++++++++++++++++++++++++++-
drivers/clk/bcm/clk-kona.c | 120 ++++++++++++++++++++++++++++++++++-
drivers/clk/bcm/clk-kona.h | 34 +++++++++-
include/dt-bindings/clock/bcm281xx.h | 3 +-
6 files changed, 258 insertions(+), 11 deletions(-)
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