linux-kernel - Re: [PATCH 03/21] clk: sunxi-ng: Enable DE2

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Date:   Mon, 14 May 2018 13:50:12 +0530
From:   Jagan Teki <jagan@...rulasolutions.com>
To:     Chen-Yu Tsai <wens@...e.org>
Cc:     Maxime Ripard <maxime.ripard@...e-electrons.com>,
        Icenowy Zheng <icenowy@...c.io>,
        Jernej Skrabec <jernej.skrabec@...l.net>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will.deacon@....com>,
        David Airlie <airlied@...ux.ie>,
        dri-devel <dri-devel@...ts.freedesktop.org>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>,
        linux-clk <linux-clk@...r.kernel.org>,
        Michael Trimarchi <michael@...rulasolutions.com>,
        linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
        devicetree <devicetree@...r.kernel.org>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        linux-sunxi <linux-sunxi@...glegroups.com>
Subject: Re: [PATCH 03/21] clk: sunxi-ng: Enable DE2_CCU for Allwinner 64-bit SoCs

On Tue, May 1, 2018 at 9:53 PM, Chen-Yu Tsai <wens@...e.org> wrote:
> On Mon, Apr 30, 2018 at 7:40 PM, Jagan Teki <jagan@...rulasolutions.com> wrote:
>> Allwinner 64-bit SoC like H5/A64 has DE2 CCU so enable them
>> as default.
>>
>> Signed-off-by: Jagan Teki <jagan@...rulasolutions.com>
>> ---
>>  drivers/clk/sunxi-ng/Kconfig | 2 ++
>>  1 file changed, 2 insertions(+)
>>
>> diff --git a/drivers/clk/sunxi-ng/Kconfig b/drivers/clk/sunxi-ng/Kconfig
>> index 79dfd296c3d1..1fffd3bf6ff3 100644
>> --- a/drivers/clk/sunxi-ng/Kconfig
>> +++ b/drivers/clk/sunxi-ng/Kconfig
>> @@ -58,6 +58,8 @@ config SUN8I_V3S_CCU
>>
>>  config SUN8I_DE2_CCU
>>         bool "Support for the Allwinner SoCs DE2 CCU"
>> +       default ARM64 && ARCH_SUNXI
>> +       depends on (DRM_SUN4I && (ARM64 && ARCH_SUNXI)) || COMPILE_TEST
>
> There is no reason to depend on DRM_SUN4I. There is no compile dependency.

Since this CCU is for DE2 I've make DRM_SUN4I for that matter, any problem?

>
> Also, this is needed on SUN8I as well, pretty much anything with DE 2.0.
> So you shouldn't limit it to ARM64. That pretty much breaks things for
> people with A83T's or H3's. In fact you should enable it by default for
> these as well.

True, I've skipped SUN8I since this series for A64.

Jagan.

-- 
Jagan Teki
Senior Linux Kernel Engineer | Amarula Solutions
U-Boot, Linux | Upstream Maintainer
Hyderabad, India.