mirror of https://lore.kernel.org/linux-amlogic/
 help / color / mirror / Atom feed
From: Jerome Brunet <jbrunet@baylibre.com>
To: Adam Green <greena88@gmail.com>
Cc: Rob Herring <robh+dt@kernel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
	Conor Dooley <conor+dt@kernel.org>,
	Neil Armstrong <neil.armstrong@linaro.org>,
	Kevin Hilman <khilman@baylibre.com>,
	Jerome Brunet <jbrunet@baylibre.com>,
	Martin Blumenstingl <martin.blumenstingl@googlemail.com>,
	devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	linux-amlogic@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] arm64: dts: meson-g12b-odroid-n2*: Add support for overclocking Hardkernel ODROID-N2 boards.
Date: Thu, 22 Feb 2024 10:37:28 +0100	[thread overview]
Message-ID: <1j8r3cet0i.fsf@starbuckisacylon.baylibre.com> (raw)
In-Reply-To: <20240222082523.1812-1-greena88@gmail.com>


On Thu 22 Feb 2024 at 08:25, Adam Green <greena88@gmail.com> wrote:

> Hardkernel actively supports overclocking these boards in their own
> documentation. (https://wiki.odroid.com/odroid-n2/hardware/overclocking)
>
> This aligns the SoC opps with those in the board vendors bsp source.

Patch title is too long - checkpatch.pl should have given a you warning
for this.

Not sure it is wise support overclocking directly in mainline, not by
default at least. Maybe as an overlay ? even this I'm not too sure.

>
> Signed-off-by: Adam Green <greena88@gmail.com>
> ---
>  .../dts/amlogic/meson-g12b-odroid-n2-plus.dts | 25 +++++++++++++++++++
>  .../boot/dts/amlogic/meson-g12b-odroid-n2.dts | 17 +++++++++++++
>  .../dts/amlogic/meson-g12b-odroid-n2l.dts     | 25 +++++++++++++++++++
>  3 files changed, 67 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2-plus.dts b/arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2-plus.dts
> index ce1198ad34e4..1731d542a00c 100644
> --- a/arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2-plus.dts
> +++ b/arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2-plus.dts
> @@ -15,6 +15,31 @@ / {
>  	model = "Hardkernel ODROID-N2Plus";
>  };
>  
> +&cpu_opp_table_0 {
> +	opp-1908000000 {
> +		opp-hz = /bits/ 64 <1908000000>;
> +		opp-microvolt = <1030000>;
> +	};
> +	opp-2016000000 {
> +		opp-hz = /bits/ 64 <2016000000>;
> +		opp-microvolt = <1040000>;
> +		turbo-mode;
> +	};
> +};
> +
> +&cpub_opp_table_1 {
> +	opp-2304000000 {
> +		opp-hz = /bits/ 64 <2304000000>;
> +		opp-microvolt = <1030000>;
> +		turbo-mode;
> +	};
> +	opp-2400000000 {
> +		opp-hz = /bits/ 64 <2400000000>;
> +		opp-microvolt = <1040000>;
> +		turbo-mode;
> +	};
> +};
> +
>  &vddcpu_a {
>  	regulator-min-microvolt = <680000>;
>  	regulator-max-microvolt = <1040000>;
> diff --git a/arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2.dts b/arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2.dts
> index a198a91259ec..0c71e8bc0124 100644
> --- a/arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2.dts
> +++ b/arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2.dts
> @@ -13,3 +13,20 @@ / {
>  	compatible = "hardkernel,odroid-n2", "amlogic,s922x", "amlogic,g12b";
>  	model = "Hardkernel ODROID-N2";
>  };
> +
> +&cpu_opp_table_0 {
> +	opp-1992000000 {
> +		turbo-mode;
> +	};
> +};
> +
> +&cpub_opp_table_1 {
> +	opp-1908000000 {
> +		turbo-mode;
> +	};
> +	opp-2004000000 {
> +		opp-hz = /bits/ 64 <2004000000>;
> +		opp-microvolt = <1022000>;
> +		turbo-mode;
> +	};
> +};
> diff --git a/arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2l.dts b/arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2l.dts
> index e26f3e3258e1..b16a69d0cad6 100644
> --- a/arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2l.dts
> +++ b/arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2l.dts
> @@ -97,6 +97,31 @@ codec {
>  	};
>  };
>  
> +&cpu_opp_table_0 {
> +	opp-1908000000 {
> +		opp-hz = /bits/ 64 <1908000000>;
> +		opp-microvolt = <1030000>;
> +	};
> +	opp-2016000000 {
> +		opp-hz = /bits/ 64 <2016000000>;
> +		opp-microvolt = <1040000>;
> +		turbo-mode;
> +	};
> +};
> +
> +&cpub_opp_table_1 {
> +	opp-2304000000 {
> +		opp-hz = /bits/ 64 <2304000000>;
> +		opp-microvolt = <1030000>;
> +		turbo-mode;
> +	};
> +	opp-2400000000 {
> +		opp-hz = /bits/ 64 <2400000000>;
> +		opp-microvolt = <1040000>;
> +		turbo-mode;
> +	};
> +};
> +
>  &eth_phy {
>  	status = "disabled";
>  };


-- 
Jerome

_______________________________________________
linux-amlogic mailing list
linux-amlogic@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-amlogic

  reply	other threads:[~2024-02-22  9:41 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-02-22  8:25 Adam Green
2024-02-22  9:37 ` Jerome Brunet [this message]
2024-02-22 10:17   ` Adam Green

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=1j8r3cet0i.fsf@starbuckisacylon.baylibre.com \
    --to=jbrunet@baylibre.com \
    --cc=conor+dt@kernel.org \
    --cc=devicetree@vger.kernel.org \
    --cc=greena88@gmail.com \
    --cc=khilman@baylibre.com \
    --cc=krzysztof.kozlowski+dt@linaro.org \
    --cc=linux-amlogic@lists.infradead.org \
    --cc=linux-arm-kernel@lists.infradead.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=martin.blumenstingl@googlemail.com \
    --cc=neil.armstrong@linaro.org \
    --cc=robh+dt@kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®