[PATCH 0/7] Add support for AmLogic GXBB clock controller

Neil Armstrong narmstrong at baylibre.com
Mon Jun 13 22:02:58 PDT 2016


On 06/13/2016 07:55 PM, Kevin Hilman wrote:
> Neil Armstrong <narmstrong at baylibre.com> writes:
> 
>> On 06/10/2016 02:32 AM, Michael Turquette wrote:
>>> This series is based on the AmLogic Meson8b rewrite/cleanup[0]. The
>>> AmLogic GXBB is an ARMv8-based SoC, fed by a 24MHZ xtal, and it provides
>>> several PLLs, muxes dividers and gates to drive CPUs and peripherals.
>>>
>>> While based on the Meson8b clock controller driver, this series adds
>>> supports for Multi-phase Locked Loops (mpll) and support for PLLs with
>>> fractional rates.
>>>
>>> This series introduces the clock controller driver for the gxbb,
>>> including the DT binding description and accompanying change in the gxbb
>>> dtsi. Only three clocks are exposed via the headers in the dt-bindings
>>> include-chroot. More can be added later, but since these values
>>> represent an ABI I wanted to start small. I'm not sure about the names
>>> for the gate clocks, so I especially tried to avoid putting those in the
>>> binding (with the exception of the Ethernet gate, which Kevin has needed
>>> for a while).
>>>
>>> Notably missing from this driver are the branch clocks (e.g. the mess of
>>> muxes and dividers that come after the PLLs and MPLLs). I could have
>>> guessed how things were wired up from the resources available to me, but
>>> I'm hoping to get some improved documentation soon and then I'll go back
>>> and fill them in.
>>>
>>> [0] http://lkml.kernel.org/g/1465518467-23939-1-git-send-email-mturquette@baylibre.com
>>>
>>> Michael Turquette (7):
>>>   clk: meson: add peripheral gate macro
>>>   clk: meson: add mpll support
>>>   clk: meson: fractional pll support
>>>   clk: gxbb: Document bindings for the GXBB clock controller
>>>   clk: gxbb: add AmLogic GXBB clk controller driver
>>>   arm64: amlogic: select gxbb clk driver
>>>   arm64: dts: gxbb clock controller
>>>
>>>  .../bindings/clock/amlogic,gxbb-clkc.txt           |  36 +
>>>  arch/arm64/Kconfig.platforms                       |   2 +
>>>  arch/arm64/boot/dts/amlogic/meson-gxbb.dtsi        |   7 +
>>>  drivers/clk/meson/Kconfig                          |   7 +
>>>  drivers/clk/meson/Makefile                         |   3 +-
>>>  drivers/clk/meson/clk-mpll.c                       |  94 ++
>>>  drivers/clk/meson/clk-pll.c                        |  32 +-
>>>  drivers/clk/meson/clkc.h                           |  39 +
>>>  drivers/clk/meson/gxbb.c                           | 954 +++++++++++++++++++++
>>>  drivers/clk/meson/gxbb.h                           | 271 ++++++
>>>  include/dt-bindings/clock/gxbb-clkc.h              |  12 +
>>>  11 files changed, 1454 insertions(+), 3 deletions(-)
>>>  create mode 100644 Documentation/devicetree/bindings/clock/amlogic,gxbb-clkc.txt
>>>  create mode 100644 drivers/clk/meson/clk-mpll.c
>>>  create mode 100644 drivers/clk/meson/gxbb.c
>>>  create mode 100644 drivers/clk/meson/gxbb.h
>>>  create mode 100644 include/dt-bindings/clock/gxbb-clkc.h
>>>
>>
>> Mike,
>>
>> I did not receive the 5/7 on the mailing list, can you resend ?
>>
> 
> Neil, did you end up receiving this?
> 
> The mailing-list had a size limit that caught this one.  I bumped it up
> and approved the mail, so it shold've gone through, and shows in
> patchwork: https://patchwork.kernel.org/patch/9170173/

Yes I finally got it.

Isn't the size limit configurable ?

Neil

> 
> Kevin
> 




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