linux-kernel - Re: [PATCH 2/2] ARM: dts: lan966x: add support for pcb8309

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Date:   Fri, 22 Jul 2022 14:48:18 +0200
From:   Horatiu Vultur - M31836 <Horatiu.Vultur@...rochip.com>
To:     Claudiu Beznea - M18063 <Claudiu.Beznea@...rochip.com>
CC:     "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "krzysztof.kozlowski+dt@...aro.org" 
        <krzysztof.kozlowski+dt@...aro.org>,
        Nicolas Ferre - M43238 <Nicolas.Ferre@...rochip.com>,
        "alexandre.belloni@...tlin.com" <alexandre.belloni@...tlin.com>,
        "arnd@...db.de" <arnd@...db.de>, "olof@...om.net" <olof@...om.net>,
        "soc@...nel.org" <soc@...nel.org>,
        UNGLinuxDriver <UNGLinuxDriver@...rochip.com>,
        "maxime.chevallier@...tlin.com" <maxime.chevallier@...tlin.com>
Subject: Re: [PATCH 2/2] ARM: dts: lan966x: add support for pcb8309

The 07/21/2022 07:39, Claudiu Beznea - M18063 wrote:
> > +&flx4 {
> > +	atmel,flexcom-mode = <ATMEL_FLEXCOM_MODE_TWI>;
> > +	status = "okay";
> 
> Embed i2c4 node here as you did for usart3 above. It's easy to follow the
> connection b/w flx node and it's enabled child.

Yes, I will do that.

> 
> > +};
> > +
> > +&gpio {
> > +	fc3_b_pins: fc3-b-pins {
> > +		/* RXD, TXD */
> > +		pins = "GPIO_52", "GPIO_53";
> > +		function = "fc3_b";
> > +	};
> > +
> > +	fc4_b_pins: fc4-b-pins {
> > +		/* SCL, SDA */
> > +		pins = "GPIO_57", "GPIO_58";
> > +		function = "fc4_b";
> > +	};
> > +
> > +	sgpio_a_pins: sgpio-a-pins {
> > +		/* SCK, D0, D1, LD */
> > +		pins = "GPIO_32", "GPIO_33", "GPIO_34", "GPIO_35";
> > +		function = "sgpio_a";
> > +	};
> > +};
> > +
> > +&i2c4 {
> > +	compatible = "microchip,sam9x60-i2c";
> > +	reg = <0x600 0x200>;
> > +	interrupts = <GIC_SPI 52 IRQ_TYPE_LEVEL_HIGH>;
> > +	#address-cells = <1>;
> > +	#size-cells = <0>;
> > +	clocks = <&nic_clk>;
> > +	pinctrl-0 = <&fc4_b_pins>;
> > +	pinctrl-names = "default";
> > +	i2c-analog-filter;
> > +	i2c-digital-filter;
> > +	i2c-digital-filter-width-ns = <35>;
> > +	i2c-sda-hold-time-ns = <1500>;
> > +	status = "okay";
> > +};
> > +
> > +&mdio1 {
> > +	status = "okay";
> > +};
> > +
> > +&phy0 {
> > +	status = "okay";
> > +};
> > +
> > +&phy1 {
> > +	status = "okay";
> > +};
> > +
> > +&port0 {
> > +	status = "okay";
> 
> Keep status at the end of node description for uniformity with the nodes
> enabled above. Same for the rest of nodes below.

OK. I will do that in the next version.

> 
> > +	phy-handle = <&phy0>;
> > +	phy-mode = "gmii";
> > +	phys = <&serdes 0 CU(0)>;
> > +};
> > +
> > +&port1 {
> > +	status = "okay";
> > +	phy-handle = <&phy1>;
> > +	phy-mode = "gmii";
> > +	phys = <&serdes 1 CU(1)>;
> > +};
> > +
> > +&port2 {
> > +	status = "okay";
> > +	sfp = <&sfp2>;
> > +	managed = "in-band-status";
> > +	phy-mode = "sgmii";
> > +	phys = <&serdes 2 SERDES6G(0)>;
> > +};
> > +
> > +&port3 {
> > +	status = "okay";
> > +	sfp = <&sfp3>;
> > +	managed = "in-band-status";
> > +	phy-mode = "sgmii";
> > +	phys = <&serdes 3 SERDES6G(1)>;
> > +};
> > +
> > +&serdes {
> > +	status = "okay";
> > +};
> > +
> > +&sgpio {
> > +	status = "okay";
> > +	pinctrl-0 = <&sgpio_a_pins>;
> > +	pinctrl-names = "default";
> > +	microchip,sgpio-port-ranges = <0 3>, <8 11>;
> 
> Except this one. For this would be nice to have status here before
> describing childs.

OK. I will do that in the next version.

> 
> > +	gpio@0 {
> > +		ngpios = <64>;
> > +	};
> > +	gpio@1 {
> > +		ngpios = <64>;
> > +	};
> > +};
> > +
> > +&switch {
> > +	status = "okay";
> > +};
> 

-- 
/Horatiu