From: Francesco Dolcini <francesco@dolcini.it>
To: Andrew Lunn <andrew@lunn.ch>
Cc: Francesco Dolcini <francesco@dolcini.it>,
Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>, Frank Li <Frank.Li@nxp.com>,
Sascha Hauer <s.hauer@pengutronix.de>,
Pengutronix Kernel Team <kernel@pengutronix.de>,
Fabio Estevam <festevam@gmail.com>,
Shawn Guo <shawnguo@kernel.org>,
Francesco Dolcini <francesco.dolcini@toradex.com>,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org,
Emanuele Ghidoli <emanuele.ghidoli@toradex.com>,
Ernest Van Hoecke <ernest.vanhoecke@toradex.com>,
Franz Schnyder <franz.schnyder@toradex.com>
Subject: Re: [PATCH v2 3/7] arm64: dts: freescale: Add Lino iMX93
Date: Tue, 15 Sep 2026 15:28:06 +0200 [thread overview]
Message-ID: <20260915132806.GA226756@francesco-nb> (raw)
In-Reply-To: <42ed88a6-d208-482b-94aa-2e45b69c173e@lunn.ch>
Hello Andrew,
thanks for the review.
On Tue, Sep 15, 2026 at 03:19:45PM +0200, Andrew Lunn wrote:
> > + ethphy1: ethernet-phy@1 {
> > + reg = <1>;
> > + interrupt-parent = <&adapter_gpio_expander>;
> > + interrupts = <3 IRQ_TYPE_EDGE_FALLING>;
>
> Falling interrupts is probably wrong. They are normally level, active
> low.
It is wanted. The I2C ioexpander component used for the interrupt
supports only edge interrupts. We tested it and it works fine like that.
The linux driver is now able to emulate the level interrupt in software,
however ...
- the DT is shared with other project, it is a HW description and it is
not supposed to pair with the specific linux driver
- when we tested it, the SW emulation was not really reliable, and we
prefer to play on the safe side
Francesco
next prev parent reply other threads:[~2026-09-15 13:28 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-11 9:19 [PATCH v2 0/7] arm64: dts: freescale: Add Toradex Lino and OSM iMX91/iMX93 Francesco Dolcini
2026-09-11 9:19 ` [PATCH v2 1/7] dt-bindings: arm: fsl: Add Lino iMX91/iMX93 Francesco Dolcini
2026-09-11 9:19 ` [PATCH v2 2/7] dt-bindings: arm: fsl: Add Toradex OSM iMX91/iMX93 Francesco Dolcini
2026-09-11 9:19 ` [PATCH v2 3/7] arm64: dts: freescale: Add Lino iMX93 Francesco Dolcini
2026-09-11 14:30 ` Frank Li
2026-09-14 5:42 ` Francesco Dolcini
2026-09-14 14:28 ` Frank Li
2026-09-14 14:36 ` Francesco Dolcini
2026-09-15 13:19 ` Andrew Lunn
2026-09-15 13:28 ` Francesco Dolcini [this message]
2026-09-15 16:49 ` Andrew Lunn
2026-09-15 17:57 ` Francesco Dolcini
2026-09-15 19:57 ` Andrew Lunn
2026-09-16 5:57 ` Francesco Dolcini
2026-09-16 12:27 ` Andrew Lunn
2026-09-16 12:43 ` Francesco Dolcini
2026-09-16 13:03 ` Andrew Lunn
2026-09-11 9:19 ` [PATCH v2 4/7] arm64: dts: freescale: imx93-lino: Add dahlia Francesco Dolcini
2026-09-11 9:19 ` [PATCH v2 5/7] arm64: dts: freescale: Add Lino iMX91 Francesco Dolcini
2026-09-11 9:19 ` [PATCH v2 6/7] arm64: dts: freescale: Add Toradex OSM iMX93 Francesco Dolcini
2026-09-11 9:19 ` [PATCH v2 7/7] arm64: dts: freescale: Add Toradex OSM iMX91 Francesco Dolcini
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