linux-kernel - Re: [PATCH] ARM: dts: at91: sama5d4_xplained: properly mux phy interrupt

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Date:	Fri, 22 Jan 2016 17:12:06 +0100
From:	Nicolas Ferre <nicolas.ferre@...el.com>
To:	Alexandre Belloni <alexandre.belloni@...e-electrons.com>
CC:	Jean-Christophe Plagniol-Villard <plagnioj@...osoft.com>,
	<linux-arm-kernel@...ts.infradead.org>,
	<linux-kernel@...r.kernel.org>, <stable@...r.kernel.org>
Subject: Re: [PATCH] ARM: dts: at91: sama5d4_xplained: properly mux phy
 interrupt

Le 15/01/2016 09:30, Alexandre Belloni a écrit :
> No interrupt were received from the phy because PIOE 1 may not be properly
> muxed. It prevented proper link detection, especially since commit
> 321beec5047a ("net: phy: Use interrupts when available in NOLINK state")
> disables polling.
> 
> Cc: <stable@...r.kernel.org> # 4.4
> Signed-off-by: Alexandre Belloni <alexandre.belloni@...e-electrons.com>

Acked-by: Nicolas Ferre <nicolas.ferre@...el.com>

And added to the upcoming at91-4.5-fixes branch.

thanks!


> ---
>  arch/arm/boot/dts/at91-sama5d4_xplained.dts | 6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/arch/arm/boot/dts/at91-sama5d4_xplained.dts b/arch/arm/boot/dts/at91-sama5d4_xplained.dts
> index 131614f28e75..8cf9999cb0cd 100644
> --- a/arch/arm/boot/dts/at91-sama5d4_xplained.dts
> +++ b/arch/arm/boot/dts/at91-sama5d4_xplained.dts
> @@ -86,6 +86,8 @@
>  			macb0: ethernet@...20000 {
>  				phy-mode = "rmii";
>  				status = "okay";
> +				pinctrl-names = "default";
> +				pinctrl-0 = <&pinctrl_macb0_rmii &pinctrl_macb0_phy_irq>;
>  
>  				phy0: ethernet-phy@1 {
>  					interrupt-parent = <&pioE>;
> @@ -152,6 +154,10 @@
>  						atmel,pins =
>  							<AT91_PIOE 8 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP_DEGLITCH>;
>  					};
> +					pinctrl_macb0_phy_irq: macb0_phy_irq_0 {
> +						atmel,pins =
> +							<AT91_PIOE 1 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP_DEGLITCH>;
> +					};
>  				};
>  			};
>  		};
> 


-- 
Nicolas Ferre