linux-kernel - Re: [PATCH v4 4/4] arm64: dts: meson-axg: add clock DT info for Meson AXG SoC

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Date:   Fri, 8 Dec 2017 22:50:38 +0800
From:   Yixun Lan <yixun.lan@...ogic.com>
To:     Kevin Hilman <khilman@...libre.com>
CC:     <yixun.lan@...ogic.com>, Neil Armstrong <narmstrong@...libre.com>,
        Jerome Brunet <jbrunet@...libre.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...eaurora.org>,
        Carlo Caione <carlo@...one.org>,
        Qiufang Dai <qiufang.dai@...ogic.com>,
        <linux-amlogic@...ts.infradead.org>, <devicetree@...r.kernel.org>,
        <linux-clk@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v4 4/4] arm64: dts: meson-axg: add clock DT info for Meson
 AXG SoC

On 12/07/17 08:50, Kevin Hilman wrote:
> Yixun Lan <yixun.lan@...ogic.com> writes:
> 
>> From: Qiufang Dai <qiufang.dai@...ogic.com>
>>
>> Try to add Hiubus DT info, and also enable clock DT info
>> for the Amlogic's Meson-AXG SoC.
>>
>> Acked-by: Rob Herring <robh@...nel.org>
>> Signed-off-by: Qiufang Dai <qiufang.dai@...ogic.com>
>> Signed-off-by: Yixun Lan <yixun.lan@...ogic.com>
>> ---
>>  arch/arm64/boot/dts/amlogic/meson-axg.dtsi | 15 +++++++++++++++
>>  1 file changed, 15 insertions(+)
>>
>> diff --git a/arch/arm64/boot/dts/amlogic/meson-axg.dtsi b/arch/arm64/boot/dts/amlogic/meson-axg.dtsi
>> index b932a784b02a..36a2e98338a8 100644
>> --- a/arch/arm64/boot/dts/amlogic/meson-axg.dtsi
>> +++ b/arch/arm64/boot/dts/amlogic/meson-axg.dtsi
>> @@ -7,6 +7,7 @@
>>  #include <dt-bindings/gpio/gpio.h>
>>  #include <dt-bindings/interrupt-controller/irq.h>
>>  #include <dt-bindings/interrupt-controller/arm-gic.h>
>> +#include <dt-bindings/clock/axg-clkc.h>
> 
> This #include will cause an unnessary dependency from the amlogic tree
> to the clock tree even though this patch is not currently using any of
> the #defines from that header.  It will simplify the dependencies if you
> drop this #include from this patch.
> 
> In my comment on the cover letter, I suggested adding a patch that also
> switches the UART over to the new clock provider.  That is the patch
> that should add this #include, since it will actually need #defines from
> the header.
> 
ok, make sense
> Doing it in that order means that we could merge this patch
> independently of the clock driver, and then merge the UART switch-over
> patch only after the driver (and headers) are merged.
I was planing to add UART DT part as separately patches (including the
UARt's pinctrl part information)

but as follow your suggestion, I could split the UART's clock DT info
into separate patch, and send along with this series.

> 
> Kevin
> 
> .
>