linux-kernel - Re: [PATCH 0/3] add ION driver for STIh4xx SoC

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Message-ID: <CAO_48GEPUpvV7zGTJA2RvXtceYNS64SEGakkjCqAhM9ffpc=zQ@mail.gmail.com>
Date:   Wed, 26 Oct 2016 19:21:40 +0530
From:   Sumit Semwal <sumit.semwal@...aro.org>
To:     Benjamin Gaignard <benjamin.gaignard@...aro.org>
Cc:     Laura Abbott <labbott@...hat.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        yudongbin@...ilicon.com, Chen Feng <puck.chen@...ilicon.com>,
        LKML <linux-kernel@...r.kernel.org>,
        "linaro-kernel@...ts.linaro.org" <linaro-kernel@...ts.linaro.org>,
        kernel@...inux.com
Subject: Re: [PATCH 0/3] add ION driver for STIh4xx SoC

Hello Benjamin,

On 26 October 2016 at 19:02, Benjamin Gaignard
<benjamin.gaignard@...aro.org> wrote:
> It is more or less a copy of Hisilicon driver but with a heap definition
> fitting with STIH4xx SoC needs.
> I have just chnage the some function prefix from "hi6220" to "sti".
>
Thanks for your patches!

I was just wondering if you couldn't convert the HiSilicon driver into
something like a 'simple-ion' driver, and have just the DT definitions
as specifics? This would save a lot of code duplication, and keep it
as a simple interface for common heaps like cma.

If there are any ST-specific requirements that are incompatible with
the existing driver, it should be clearly documented out here I think.

> Benjamin Gaignard (3):
>   add binding for STIh4xx ION driver
>   add STIH4xx ION driver
>   add STIH4xx ION driver in DT
>
>  .../devicetree/bindings/staging/ion/st,sti-ion.txt |  14 +++
>  arch/arm/boot/dts/stih407-family.dtsi              |   7 ++
>  drivers/staging/android/ion/Kconfig                |   7 ++
>  drivers/staging/android/ion/Makefile               |   2 +
>  drivers/staging/android/ion/sti/Makefile           |   1 +
>  drivers/staging/android/ion/sti/sti_ion.c          | 103 +++++++++++++++++++++
>  6 files changed, 134 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/staging/ion/st,sti-ion.txt
>  create mode 100644 drivers/staging/android/ion/sti/Makefile
>  create mode 100644 drivers/staging/android/ion/sti/sti_ion.c
>
> --
> 1.9.1
>

Best regards,
Sumit.