linux-kernel - Re: [PATCH v5 4/5] pinctrl: qcom: ipq5018: allow it to be bulid on arm32

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Message-ID: <CACRpkdZnBBAEgHZ=HShwvaXaN-6icC5hzwHqDNWWy_PKJDh+Fw@mail.gmail.com>
Date: Fri, 4 Oct 2024 13:44:47 +0200
From: Linus Walleij <linus.walleij@...aro.org>
To: Karl Chan <exxxxkc@...googleoff.me>, Arnd Bergmann <arnd@...db.de>
Cc: linux-arm-msm@...r.kernel.org, andersson@...nel.org, 
	konradybcio@...nel.org, robh@...nel.org, krzk+dt@...nel.org, 
	conor+dt@...nel.org, mturquette@...libre.com, sboyd@...nel.org, 
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, 
	linux-clk@...r.kernel.org, linux-gpio@...r.kernel.org
Subject: Re: [PATCH v5 4/5] pinctrl: qcom: ipq5018: allow it to be bulid on arm32

On Thu, Oct 3, 2024 at 1:29 AM Karl Chan <exxxxkc@...googleoff.me> wrote:

> There are some ipq5018 based device's firmware only can able to boot
> arm32 but the pinctrl driver dont allow it to be compiled on
> arm32.Therefore this patch needed for those devices.
>
> Signed-off-by: Karl Chan <exxxxkc@...googleoff.me>
(...)
> -       depends on ARM64 || COMPILE_TEST
> +       depends on ARM || ARM64 || COMPILE_TEST

Can we get some more context for this?

Is this another one of those cases where the SoC is actually a
64bit core but vendors just choose to run it in 32bit mode because
that is what they want or what is the reason here? AFAIK
IPQ5018 is always Cortex-A53?

I just want to know if this is something we should encourage
or leave out-of-tree.

Yours,
Linus Walleij