Re: [PATCH v4 2/4] mfd: anx7688: Add driver for Analogix ANX7688 chip

[Lee Jones]

On Wed, 18 Mar 2020, Enric Balletbo i Serra wrote:

> The ANX7688 chip is a Type-C Port Controller, HDMI to DP converter and
> USB-C mux between USB 3.0 lanes and the DP output.
> 
> For our use case a big part of the chip, like power supplies, control
> gpios and usb-c parts are managed by an Embedded Controller, hence,
> this is its simplest form of it. Other users of this chip might
> introduce new functionalities as per their requirements.

Hmm... So first impressions is that this 'driver' doesn't really do
anything useful other than checking the running model.  I think you're
better off using "simple-mfd" and doing the ID check inside the
useful/functional child device driver(s).

> Signed-off-by: Enric Balletbo i Serra <enric.balletbo@xxxxxxxxxxxxx>
> ---
> 
> Changes in v4: None
> Changes in v3: None
> Changes in v2: None
> 
>  drivers/mfd/Kconfig         | 11 +++++
>  drivers/mfd/Makefile        |  1 +
>  drivers/mfd/anx7688.c       | 87 +++++++++++++++++++++++++++++++++++++
>  include/linux/mfd/anx7688.h | 39 +++++++++++++++++
>  4 files changed, 138 insertions(+)
>  create mode 100644 drivers/mfd/anx7688.c
>  create mode 100644 include/linux/mfd/anx7688.h

-- 
Lee Jones [æçæ]
Linaro Services Technical Lead
Linaro.org â Open source software for ARM SoCs
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