linux-arm-kernel.lists.infradead.org archive mirror
 help / color / mirror / Atom feed
From: Andre Przywara <andre.przywara@arm.com>
To: Bastian Germann <bage@debian.org>
Cc: Wilken Gottwalt <wilken.gottwalt@posteo.net>,
	Ohad Ben-Cohen <ohad@wizery.com>,
	Bjorn Andersson <andersson@kernel.org>,
	Baolin Wang <baolin.wang@linux.alibaba.com>,
	Rob Herring <robh+dt@kernel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
	Chen-Yu Tsai <wens@csie.org>,
	Samuel Holland <samuel@sholland.org>,
	linux-remoteproc@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	linux-sunxi@lists.linux.dev, devicetree@vger.kernel.org
Subject: Re: [PATCH 3/3] arm64: dts: allwinner: a64: Add hwspinlock node
Date: Tue, 14 Feb 2023 00:12:00 +0000	[thread overview]
Message-ID: <20230214001200.54504034@slackpad.lan> (raw)
In-Reply-To: <20230213231931.6546-4-bage@debian.org>

On Tue, 14 Feb 2023 00:19:30 +0100
Bastian Germann <bage@debian.org> wrote:

Hi,

> Add the hwspinlock to A64 which is already implemented for A31.
> 
> Signed-off-by: Bastian Germann <bage@debian.org>
> ---
>  arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi | 10 ++++++++++
>  1 file changed, 10 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
> index 77b5349f6087..d4be8be0f2f3 100644
> --- a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
> +++ b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
> @@ -851,6 +851,16 @@ wdt0: watchdog@1c20ca0 {
>  			clocks = <&osc24M>;
>  		};
>  
> +		hwspinlock: hwlock@1c18000 {
> +			compatible = "allwinner,sun6i-a31-hwspinlock";

I wonder if we should add a more specific compatible string here
(sun50i-a64-hwspinlock), with the existing one as a fallback.

Checked the address and the clock/reset against the manual.

I am not entirely sure if it's the best practice to unconditionally
enable those devices, but since it needs explicit consumers to be used,
it's probably fine.

Cheers,
Andre


> +			reg = <0x01c18000 0x1000>;
> +			clocks = <&ccu CLK_BUS_SPINLOCK>;
> +			clock-names = "ahb";
> +			resets = <&ccu RST_BUS_SPINLOCK>;
> +			reset-names = "ahb";
> +			#hwlock-cells = <1>;
> +		};
> +
>  		spdif: spdif@1c21000 {
>  			#sound-dai-cells = <0>;
>  			compatible = "allwinner,sun50i-a64-spdif",


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

  reply	other threads:[~2023-02-14  0:15 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-02-13 23:19 [PATCH 0/3] Enable hwlock on Allwinner A64 Bastian Germann
2023-02-13 23:19 ` [PATCH 1/3] dt-bindings: hwlock: sun6i: Add missing #hwlock-cells Bastian Germann
2023-02-14  0:04   ` Andre Przywara
2023-02-14  8:08   ` Krzysztof Kozlowski
2023-02-14 16:12   ` Rob Herring
2023-02-15 14:07   ` Rob Herring
2023-02-16  8:39     ` Bastian Germann
2023-02-13 23:19 ` [PATCH 2/3] dt-bindings: hwlock: sun6i: Add missing names Bastian Germann
2023-02-14  0:07   ` Andre Przywara
2023-02-14  8:09   ` Krzysztof Kozlowski
2023-02-14  9:45   ` Wilken Gottwalt
2023-02-14 12:12     ` Andre Przywara
2023-02-14 12:39       ` Krzysztof Kozlowski
2023-02-14 12:37     ` Krzysztof Kozlowski
2023-02-14 18:11       ` Andre Przywara
2023-02-16  8:15         ` Krzysztof Kozlowski
2023-02-14 12:38   ` Krzysztof Kozlowski
2023-02-13 23:19 ` [PATCH 3/3] arm64: dts: allwinner: a64: Add hwspinlock node Bastian Germann
2023-02-14  0:12   ` Andre Przywara [this message]
2023-02-14  0:18 ` [PATCH 0/3] Enable hwlock on Allwinner A64 Andre Przywara
2023-02-14 21:55   ` Bastian Germann
2023-02-15  5:01     ` Wilken Gottwalt
2023-02-14 20:57 ` (subset) " Bjorn Andersson
2023-02-15 22:31   ` Andre Przywara

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=20230214001200.54504034@slackpad.lan \
    --to=andre.przywara@arm.com \
    --cc=andersson@kernel.org \
    --cc=bage@debian.org \
    --cc=baolin.wang@linux.alibaba.com \
    --cc=devicetree@vger.kernel.org \
    --cc=krzysztof.kozlowski+dt@linaro.org \
    --cc=linux-arm-kernel@lists.infradead.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-remoteproc@vger.kernel.org \
    --cc=linux-sunxi@lists.linux.dev \
    --cc=ohad@wizery.com \
    --cc=robh+dt@kernel.org \
    --cc=samuel@sholland.org \
    --cc=wens@csie.org \
    --cc=wilken.gottwalt@posteo.net \
    /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;
as well as URLs for NNTP newsgroup(s).