linux-kernel - Re: [PATCH 3/4] arm64: dts: marvell: espressobin-ultra: add PHY and switch reset pins

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Message-ID: <YVHzbLJTFgOdVWQx@lunn.ch>
Date:   Mon, 27 Sep 2021 18:38:04 +0200
From:   Andrew Lunn <andrew@...n.ch>
To:     Robert Marko <robert.marko@...tura.hr>
Cc:     gregory.clement@...tlin.com, sebastian.hesselbarth@...il.com,
        robh+dt@...nel.org, linux-arm-kernel@...ts.infradead.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 3/4] arm64: dts: marvell: espressobin-ultra: add PHY and
 switch reset pins

On Mon, Sep 27, 2021 at 05:41:58PM +0200, Robert Marko wrote:
> Both the Topaz switch and 88E1512 PHY have their reset and interrupts
> connected to the SoC.
> 
> So, define the Topaz and 88E1512 reset pins in the DTS.
> 
> Defining the interrupt pins wont work as both the 88E1512 and the
> Topaz switch uses active LOW IRQ signals but the A37xx GPIO controller
> only supports edge triggers.
> 88E1512 would require special setup anyway as its INT pin is shared with
> the LED2 and you first need to configure it as INT.
> 
> Signed-off-by: Robert Marko <robert.marko@...tura.hr>

Reviewed-by: Andrew Lunn <andrew@...n.ch>

    Andrew