Re: [PATCH v6 00/16] ARM: at91: move to common clk framework

[Mike Turquette]

Quoting Boris BREZILLON (2013-11-28 04:36:24)
> Hello,
> 
> This patch series is the 5th version of the at91 clk implementations
> using the Common Clk Framework.

Oops, I just replied to v5 of this series. Thanks for the fixes. Which
tree do you want this to go through?

Regards,
Mike

> 
> Most of the clock provided by the PMC (Power Management Controller) are
> implemented :
> - main clock (main oscillator)
> - pll clocks
> - master clock
> - programmable clocks
> - utmi clock
> - peripheral clocks
> - system clocks
> 
> Actually some clk drivers are missing (slow clk, main clk and processor
> clk), and some drivers only implement a subset of the hardware capabilities
> (master clk rate change is missing).
> But this series implements all the already available clks, and I will hopefully
> add missing features in a near future.
> 
> This implementation is only compatible with device tree definition.
> The goal is to define the whole clock tree using the device tree.
> 
> Just a note to let you know these bindings are currently unstable and might
> change in the future.
> 
> 
> Best Regards,
> Boris
> 
> Changes since v5:
>  - remove peripheral divisors macros from dt binding include file
>  - remove file path from comment blocks
>  - replace pll and utmi disable function by unprepare function to
>    avoid issue when disabling and reenabling a clk
>  - fix programmable clk interrupt retrieval
>  - fix OF_CLK_DECLARE names (xxx_clk_main -> xxx_clk_pmc)
>  - add missing comma in at91rm9200 main clk dt declaration
>  - fix num_parents check in smd clk driver
> 
> Changes since v4:
>  - rework dt bindings:
>    * replace "atmel,clk-id" property by the standard "reg" property
>    * reference system, peripheral and programmable clks using the direct
>      clk node instead of the parent node plus a clk id
>  - provide a new helper function (of_at91_get_clk_range) to retrieve a clk
>    range from the device tree
> 
> Changes since v3:
>  - simplify master clk implementation (drop set_rate/parent support)
>  - fix bug in set_rate function of pll driver
>  - fix coding style issues
>  - define macros and constants where needed
>  - remove peripheral id macro references
>  - remove sam9g35 specific handling (sam9g35 = sam9x5)
>  - rework main clk prepare function to handle automatic rate calculation
> 
> Changes since v2:
>  - fix several bugs in clk implementations
>  - drop non-dt boards support
>  - split the series to ease review and tests:
>    * 1 patch series for new clk implementations (this series)
>    * 1 patch series to move each at91 SoC to common clk framework (coming soon)
>  - modify dt-bindings (add atmel,clk- prefix to atmel specific properties)
>  - add clk macros for dt-bindings
>  - add pmc framework (helper function to access pmc registers)
>  - add interrupt support to enable passive wait in clk_prepare functions
> 
> Changes since v1:
>  - fix bugs in pll, programmable and system clock implementations
>    (wrong bit position).
>  - add usb clock configuration support (ohci and udc drivers +
>    clk_lookup for non dt boards)
>  - rework of the system clock interfaces (no need to define a parent clock,
>    system clock is a gate with no rate info)
>  - change system, peripheral and programmable clk dt bindings (1 master node
>    and multiple child nodes each defining a system/peripheral or prog clock)
>  - fix bugs in sama5 dt definition
> 
> Boris BREZILLON (16):
>   ARM: at91: move at91_pmc.h to include/linux/clk/at91_pmc.h
>   ARM: at91: add Kconfig options for common clk support
>   clk: at91: add PMC base support
>   clk: at91: add PMC macro file for dt definitions
>   clk: at91: add PMC main clock
>   clk: at91: add PMC pll clocks
>   clk: at91: add PMC master clock
>   clk: at91: add PMC system clocks
>   clk: at91: add PMC peripheral clocks
>   clk: at91: add PMC programmable clocks
>   clk: at91: add PMC utmi clock
>   clk: at91: add PMC usb clock
>   clk: at91: add PMC smd clock
>   dt: binding: add at91 clks dt bindings documentation
>   ARM: at91: move pit timer to common clk framework
>   ARM: at91: add new compatible strings for pmc driver
> 
>  .../devicetree/bindings/clock/at91-clock.txt       |  339 +++++++++++++
>  arch/arm/mach-at91/Kconfig                         |   44 ++
>  arch/arm/mach-at91/Kconfig.non_dt                  |    6 +
>  arch/arm/mach-at91/Makefile                        |    2 +-
>  arch/arm/mach-at91/at91rm9200.c                    |    2 +-
>  arch/arm/mach-at91/at91sam9260.c                   |    2 +-
>  arch/arm/mach-at91/at91sam9261.c                   |    2 +-
>  arch/arm/mach-at91/at91sam9263.c                   |    2 +-
>  arch/arm/mach-at91/at91sam926x_time.c              |   14 +-
>  arch/arm/mach-at91/at91sam9g45.c                   |    2 +-
>  arch/arm/mach-at91/at91sam9n12.c                   |    2 +-
>  arch/arm/mach-at91/at91sam9rl.c                    |    2 +-
>  arch/arm/mach-at91/at91sam9x5.c                    |    2 +-
>  arch/arm/mach-at91/clock.c                         |    7 +-
>  arch/arm/mach-at91/generic.h                       |    3 +-
>  arch/arm/mach-at91/pm.c                            |    2 +-
>  arch/arm/mach-at91/pm_slowclock.S                  |    2 +-
>  arch/arm/mach-at91/sama5d3.c                       |    2 +-
>  arch/arm/mach-at91/setup.c                         |    8 +-
>  drivers/clk/Makefile                               |    1 +
>  drivers/clk/at91/Makefile                          |   12 +
>  drivers/clk/at91/clk-main.c                        |  187 +++++++
>  drivers/clk/at91/clk-master.c                      |  270 ++++++++++
>  drivers/clk/at91/clk-peripheral.c                  |  410 +++++++++++++++
>  drivers/clk/at91/clk-pll.c                         |  531 ++++++++++++++++++++
>  drivers/clk/at91/clk-plldiv.c                      |  135 +++++
>  drivers/clk/at91/clk-programmable.c                |  366 ++++++++++++++
>  drivers/clk/at91/clk-smd.c                         |  171 +++++++
>  drivers/clk/at91/clk-system.c                      |  135 +++++
>  drivers/clk/at91/clk-usb.c                         |  398 +++++++++++++++
>  drivers/clk/at91/clk-utmi.c                        |  159 ++++++
>  drivers/clk/at91/pmc.c                             |  397 +++++++++++++++
>  drivers/clk/at91/pmc.h                             |  116 +++++
>  drivers/usb/gadget/atmel_usba_udc.c                |    2 +-
>  include/dt-bindings/clk/at91.h                     |   22 +
>  .../include/mach => include/linux/clk}/at91_pmc.h  |    4 +-
>  36 files changed, 3741 insertions(+), 20 deletions(-)
>  create mode 100644 Documentation/devicetree/bindings/clock/at91-clock.txt
>  create mode 100644 drivers/clk/at91/Makefile
>  create mode 100644 drivers/clk/at91/clk-main.c
>  create mode 100644 drivers/clk/at91/clk-master.c
>  create mode 100644 drivers/clk/at91/clk-peripheral.c
>  create mode 100644 drivers/clk/at91/clk-pll.c
>  create mode 100644 drivers/clk/at91/clk-plldiv.c
>  create mode 100644 drivers/clk/at91/clk-programmable.c
>  create mode 100644 drivers/clk/at91/clk-smd.c
>  create mode 100644 drivers/clk/at91/clk-system.c
>  create mode 100644 drivers/clk/at91/clk-usb.c
>  create mode 100644 drivers/clk/at91/clk-utmi.c
>  create mode 100644 drivers/clk/at91/pmc.c
>  create mode 100644 drivers/clk/at91/pmc.h
>  create mode 100644 include/dt-bindings/clk/at91.h
>  rename {arch/arm/mach-at91/include/mach => include/linux/clk}/at91_pmc.h (98%)
> 
> -- 
> 1.7.9.5
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