linux-kernel - Re: [PATCH 5/5] arm64: dts: renesas: rzg2l-smarc-som: Add PHY interrupt support for ETH{0/1}

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Message-ID: <CAMuHMdV5s-q13pWXs-ki6o5h8=ZMPL11o08YQx1pawe9EUySBA@mail.gmail.com>
Date:   Thu, 21 Jul 2022 12:46:51 +0200
From:   Geert Uytterhoeven <geert@...ux-m68k.org>
To:     Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
Cc:     Magnus Damm <magnus.damm@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Linux-Renesas <linux-renesas-soc@...r.kernel.org>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Prabhakar <prabhakar.csengg@...il.com>,
        Biju Das <biju.das.jz@...renesas.com>
Subject: Re: [PATCH 5/5] arm64: dts: renesas: rzg2l-smarc-som: Add PHY
 interrupt support for ETH{0/1}

Hi Prabhakar,

On Mon, Jul 18, 2022 at 9:57 PM Lad Prabhakar
<prabhakar.mahadev-lad.rj@...renesas.com> wrote:
> The PHY interrupt (INT_N) pin is connected to IRQ2 and IRQ3 for ETH0
> and ETH1 respectively.
>
> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>

Thanks for your patch!

> --- a/arch/arm64/boot/dts/renesas/rzg2l-smarc-som.dtsi
> +++ b/arch/arm64/boot/dts/renesas/rzg2l-smarc-som.dtsi
> @@ -94,6 +94,8 @@ phy0: ethernet-phy@7 {
>                 compatible = "ethernet-phy-id0022.1640",
>                              "ethernet-phy-ieee802.3-c22";
>                 reg = <7>;
> +               interrupt-parent = <&irqc>;
> +               interrupts = <3 IRQ_TYPE_LEVEL_LOW>;

2?

"The first cell should contain external interrupt number (IRQ0-7)"

>                 rxc-skew-psec = <2400>;
>                 txc-skew-psec = <2400>;
>                 rxdv-skew-psec = <0>;
> @@ -120,6 +122,8 @@ phy1: ethernet-phy@7 {
>                 compatible = "ethernet-phy-id0022.1640",
>                              "ethernet-phy-ieee802.3-c22";
>                 reg = <7>;
> +               interrupt-parent = <&irqc>;
> +               interrupts = <4 IRQ_TYPE_LEVEL_LOW>;

3?

>                 rxc-skew-psec = <2400>;
>                 txc-skew-psec = <2400>;
>                 rxdv-skew-psec = <0>;
> @@ -171,7 +175,8 @@ eth0_pins: eth0 {
>                          <RZG2L_PORT_PINMUX(25, 0, 1)>, /* ET0_RXD0 */
>                          <RZG2L_PORT_PINMUX(25, 1, 1)>, /* ET0_RXD1 */
>                          <RZG2L_PORT_PINMUX(26, 0, 1)>, /* ET0_RXD2 */
> -                        <RZG2L_PORT_PINMUX(26, 1, 1)>; /* ET0_RXD3 */
> +                        <RZG2L_PORT_PINMUX(26, 1, 1)>, /* ET0_RXD3 */
> +                        <RZG2L_PORT_PINMUX(1, 0, 1)>;  /* IRQ2 */
>         };
>
>         eth1_pins: eth1 {
> @@ -189,7 +194,8 @@ eth1_pins: eth1 {
>                          <RZG2L_PORT_PINMUX(34, 1, 1)>, /* ET1_RXD0 */
>                          <RZG2L_PORT_PINMUX(35, 0, 1)>, /* ET1_RXD1 */
>                          <RZG2L_PORT_PINMUX(35, 1, 1)>, /* ET1_RXD2 */
> -                        <RZG2L_PORT_PINMUX(36, 0, 1)>; /* ET1_RXD3 */
> +                        <RZG2L_PORT_PINMUX(36, 0, 1)>, /* ET1_RXD3 */
> +                        <RZG2L_PORT_PINMUX(1, 1, 1)>;  /* IRQ3 */
>         };
>
>         gpio-sd0-pwr-en-hog {
> --
> 2.25.1
>


-- 
Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds