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From: Marc Gonzalez <marc.w.gonzalez@free.fr>
To: Jeffrey Hugo <jeffrey.l.hugo@gmail.com>,
	Andy Gross <agross@kernel.org>,
	Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: Rob Herring <robh+dt@kernel.org>,
	Mark Rutland <mark.rutland@arm.com>,
	MSM <linux-arm-msm@vger.kernel.org>,
	DT <devicetree@vger.kernel.org>,
	LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] arm64: dts: qcom: msm8998: Node ordering, address cleanups
Date: Wed, 24 Jul 2019 13:16:50 +0200	[thread overview]
Message-ID: <2165bbd3-aa60-bec0-4ee7-dfb7dc1dd1ad@free.fr> (raw)
In-Reply-To: <20190722165823.21539-1-jeffrey.l.hugo@gmail.com>

On 22/07/2019 18:58, Jeffrey Hugo wrote:

> DT nodes should be ordered by address, then node name, and finally label.
> The msm8998 dtsi does not follow this, so clean it up by reordering the
> nodes.  While we are at it, extend the addresses to be fully 32-bits wide
> so that ordering is easy to determine when adding new nodes.  Also, two
> or so nodes had the wrong address value in their node name (did not match
> the reg property), so fix those up as well.
> 
> Hopefully going forward, things can be maintained so that a cleanup like
> this is not needed.
> 
> Signed-off-by: Jeffrey Hugo <jeffrey.l.hugo@gmail.com>
> ---
>  arch/arm64/boot/dts/qcom/msm8998.dtsi | 254 +++++++++++++-------------
>  1 file changed, 127 insertions(+), 127 deletions(-)

LGTM.

Reviewed-by: Marc Gonzalez <marc.w.gonzalez@free.fr>

Rob, Mark: when there are multiple reg properties, why is the convention
to use the *first* address in the node's name, rather than the lowest
address?

e.g.

		spmi_bus: spmi@800f000 {
			compatible = "qcom,spmi-pmic-arb";
			reg =	<0x0800f000 0x1000>,
				<0x08400000 0x1000000>,
				<0x09400000 0x1000000>,
				<0x0a400000 0x220000>,
				<0x0800a000 0x3000>;
			reg-names = "core", "chnls", "obsrvr", "intr", "cnfg";

"spmi@800f000" instead of "spmi@800a000"

Especially, since the reg props could be in any order here, given the
lookup by name.

Regards.

  reply	other threads:[~2019-07-24 11:16 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-07-22 16:58 [PATCH] arm64: dts: qcom: msm8998: Node ordering, address cleanups Jeffrey Hugo
2019-07-24 11:16 ` Marc Gonzalez [this message]
2019-07-24 18:45   ` Bjorn Andersson
2019-07-24 15:35 ` Vinod Koul

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