Re: [RFC PATCH 00/16] ASoC/SOF/clk/gpio/dt: add Hifiberry DAC+ PRO support

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On Thu, Apr 09, 2020 at 02:58:25PM -0500, Pierre-Louis Bossart wrote:
> The Hifiberry DAC+ / DAC+ PRO is supported in the Raspberry PI tree
> but until now not in the mainline and not for ACPI platforms.
> 
> This patchset implements the recommendations suggested by Mark Brown
> back in 2018: first add a gpiochip in the PCM512x codec driver, then
> use these gpios from a clock driver and the machine driver.
> 
> Since this patchset relies on different subsystems, sending as RFC for
> now. I chose to import the original code from the Raspberry PI tree as
> is,

I don't see briefly what they are, any pointers like patch numbers in the
series?

>	and add my changes on top. If there is a preference to squash the
> changes that'd be fine.

I guess it would be good to have.

> I also don't know if I should split this
> series in two, one for ASoC and one for clk changes?
> 
> This patchset does not add changes to the sound/soc/bcm machine
> drivers, but that should be trivial once all the gpio/clock is
> available.
> 
> Thanks to Andy Shevchenko for his help navigating the gpio subsystem
> and flagging mistakes in the use of lookup tables, and to Rob Herring
> for pointers on the DT bindings verification tools.

You are welcome!
I'm going to review them (where I understand something) as they are presented.

> Daniel Matuschek (1):
>   clk: hifiberry-dacpro: initial import
> 
> Pierre-Louis Bossart (15):
>   ASoC: pcm512x: expose 6 GPIOs
>   ASoC: pcm512x: use "sclk" string to retrieve clock
>   ASoC: Intel: sof-pcm512x: use gpiod for LED
>   ASoC: Intel: sof-pcm512x: detect Hifiberry DAC+ PRO
>   ASoC: Intel: sof-pcm512x: reconfigure sclk in hw_params if needed
>   ASoC: Intel: sof-pcm512x: select HIFIBERRY_DACPRO clk
>   clk: hifiberry-dacpro: update SDPX/copyright
>   clk: hifiberry-dacpro: style cleanups, use devm_
>   clk: hifiberry-dacpro: add OF dependency
>   clk: hifiberry-dacpro: transition to _hw functions
>   clk: hifiberry-dacpro: add ACPI support
>   clk: hifiberry-dacpro: add "sclk" lookup
>   clk: hifiberry-dacpro: toggle GPIOs on prepare/unprepare
>   clk: hifiberry-dacpro: add delay on clock prepare/deprepare
>   ASoC: dt-bindings: add document for Hifiberry DAC+ PRO clock
> 
>  .../bindings/sound/hifiberry-dacpro.yaml      |  38 +++
>  drivers/clk/Kconfig                           |   4 +
>  drivers/clk/Makefile                          |   1 +
>  drivers/clk/clk-hifiberry-dacpro.c            | 284 ++++++++++++++++++
>  sound/soc/codecs/pcm512x.c                    | 134 ++++++++-
>  sound/soc/intel/boards/Kconfig                |   2 +
>  sound/soc/intel/boards/sof_pcm512x.c          | 190 +++++++++++-
>  7 files changed, 635 insertions(+), 18 deletions(-)
>  create mode 100644 Documentation/devicetree/bindings/sound/hifiberry-dacpro.yaml
>  create mode 100644 drivers/clk/clk-hifiberry-dacpro.c
> 
> 
> base-commit: dd8e871d4e560eeb8d22af82dde91457ad835a63
> -- 
> 2.20.1
> 

-- 
With Best Regards,
Andy Shevchenko





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