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Message-ID: <169591855248.815095.5147614277877224854.robh@kernel.org>
Date: Thu, 28 Sep 2023 11:29:12 -0500
From: Rob Herring <robh@...nel.org>
To: "Peng Fan (OSS)" <peng.fan@....nxp.com>
Cc: devicetree@...r.kernel.org, Conor Dooley <conor+dt@...nel.org>,
linux-arm-kernel@...ts.infradead.org,
Stefan Agner <stefan@...er.ch>,
Rob Herring <robh+dt@...nel.org>,
Andy Shevchenko <andy@...nel.org>,
Shawn Guo <shawnguo@...nel.org>,
Linus Walleij <linus.walleij@...aro.org>,
Fabio Estevam <festevam@...il.com>,
NXP Linux Team <linux-imx@....com>,
Sascha Hauer <s.hauer@...gutronix.de>,
Bartosz Golaszewski <brgl@...ev.pl>,
Marco Felsch <m.felsch@...gutronix.de>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
linux-gpio@...r.kernel.org, Peng Fan <peng.fan@....com>,
Pengutronix Kernel Team <kernel@...gutronix.de>,
linux-kernel@...r.kernel.org
Subject: Re: [PATCH v4 2/7] dt-bindings: gpio: vf610: correct i.MX8ULP and
i.MX93
On Tue, 26 Sep 2023 11:33:18 +0800, Peng Fan (OSS) wrote:
> From: Peng Fan <peng.fan@....com>
>
> i.MX8ULP and i.MX93 actually has two interrupts for each gpio
> controller, one for Trustzone non-secure world, one for secure world.
>
> And they has one register based, not two as i.MX7ULP or VF610.
>
> Although the Linux Kernel driver gpio-vf610.c could work with
> fsl,imx7ulp-gpio compatible, it is based on some tricks did in
> device tree with some offset added to base address.
>
> So actually i.MX8ULP/i.MX93 is not compatible with i.MX7ULP.
>
> Last, i.MX93 is directly derived from i.MX8ULP, so make i.MX93 GPIO
> compatible with i.MX8ULP
>
> Signed-off-by: Peng Fan <peng.fan@....com>
> ---
> .../devicetree/bindings/gpio/gpio-vf610.yaml | 36 +++++++++++++++++++---
> 1 file changed, 31 insertions(+), 5 deletions(-)
>
Reviewed-by: Rob Herring <robh@...nel.org>
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