linux-kernel - Re: [PATCH v11 3/5] clk / soc: mediatek: Move mt8173 MMSYS to platform driver

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Date:   Wed, 11 Mar 2020 21:05:52 +0800
From:   CK Hu <ck.hu@...iatek.com>
To:     Enric Balletbo i Serra <enric.balletbo@...labora.com>
CC:     <robh+dt@...nel.org>, <mark.rutland@....com>,
        <p.zabel@...gutronix.de>, <airlied@...ux.ie>,
        <mturquette@...libre.com>, <sboyd@...nel.org>,
        <ulrich.hecht+renesas@...il.com>,
        <laurent.pinchart@...asonboard.com>,
        "Matthias Brugger" <matthias.bgg@...il.com>,
        <linux-media@...r.kernel.org>,
        "Allison Randal" <allison@...utok.net>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        <linux-mediatek@...ts.infradead.org>,
        "Collabora Kernel ML" <kernel@...labora.com>,
        <dri-devel@...ts.freedesktop.org>,
        "Seiya Wang" <seiya.wang@...iatek.com>,
        <linux-kernel@...r.kernel.org>, <wens@...e.org>,
        Daniel Vetter <daniel@...ll.ch>, <linux-clk@...r.kernel.org>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Kate Stewart <kstewart@...uxfoundation.org>,
        <devicetree@...r.kernel.org>,
        "Matthias Brugger" <mbrugger@...e.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        <frank-w@...lic-files.de>, <linux-arm-kernel@...ts.infradead.org>,
        <hsinyi@...omium.org>, Richard Fontana <rfontana@...hat.com>,
        mtk01761 <wendell.lin@...iatek.com>,
        Weiyi Lu <weiyi.lu@...iatek.com>, <sean.wang@...iatek.com>,
        <rdunlap@...radead.org>, <matthias.bgg@...nel.org>,
        Andrew-CT Chen <andrew-ct.chen@...iatek.com>,
        Houlong Wei <houlong.wei@...iatek.com>,
        Minghsiu Tsai <minghsiu.tsai@...iatek.com>,
        Fabien Parent <fparent@...libre.com>,
        Krzysztof Kozlowski <krzk@...nel.org>,
        Nicolas Boichat <drinkcat@...omium.org>,
        Owen Chen <owen.chen@...iatek.com>
Subject: Re: [PATCH v11 3/5] clk / soc: mediatek: Move mt8173 MMSYS to
 platform driver

Hi, Enric:

On Wed, 2020-03-11 at 12:56 +0100, Enric Balletbo i Serra wrote:
> From: Matthias Brugger <mbrugger@...e.com>
> 
> There is no strong reason for this to use CLK_OF_DECLARE instead of
> being a platform driver. Plus, MMSYS provides clocks but also a shared
> register space for the mediatek-drm and the mediatek-mdp
> driver. So move the MMSYS clocks to a new platform driver and also
> create a new MMSYS platform driver in drivers/soc/mediatek that
> instantiates the clock driver.
> 

Reviewed-by: CK Hu <ck.hu@...iatek.com>

> Signed-off-by: Matthias Brugger <mbrugger@...e.com>
> Signed-off-by: Enric Balletbo i Serra <enric.balletbo@...labora.com>
> ---
> 
> Changes in v11:
> - Leave the clocks part in drivers/clk (clk-mt8173-mm)
> - Instantiate the clock driver from the mtk-mmsys driver.
> - Add default config option to not break anything.
> - Removed the Reviewed-by CK tag as changed the organization.
> 
> Changes in v10:
> - Renamed to be generic mtk-mmsys
> - Add driver data support to be able to support diferent SoCs
> 
> Changes in v9:
> - Move mmsys to drivers/soc/mediatek (CK)
> 
> Changes in v8:
> - Be a builtin_platform_driver like other mediatek mmsys drivers.
> 
> Changes in v7:
> - Free clk_data->clks as well
> - Get rid of private data structure
> 
>  drivers/clk/mediatek/Kconfig         |   7 ++
>  drivers/clk/mediatek/Makefile        |   1 +
>  drivers/clk/mediatek/clk-mt8173-mm.c | 146 +++++++++++++++++++++++++++
>  drivers/clk/mediatek/clk-mt8173.c    | 104 -------------------
>  drivers/soc/mediatek/Kconfig         |   8 ++
>  drivers/soc/mediatek/Makefile        |   1 +
>  drivers/soc/mediatek/mtk-mmsys.c     |  50 +++++++++
>  7 files changed, 213 insertions(+), 104 deletions(-)
>  create mode 100644 drivers/clk/mediatek/clk-mt8173-mm.c
>  create mode 100644 drivers/soc/mediatek/mtk-mmsys.c
> 

>  obj-$(CONFIG_COMMON_CLK_MT8183_CAMSYS) += clk-mt8183-cam.o