linux-kernel - Re: [PATCH v2 2/2] arm64: dts: ti: k3-am625-sk: Enable on board peripherals

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Date:   Mon, 25 Apr 2022 14:52:33 +0530
From:   Vignesh Raghavendra <vigneshr@...com>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        Nishanth Menon <nm@...com>, Tero Kristo <kristo@...nel.org>,
        Rob Herring <robh+dt@...nel.org>
CC:     Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        Aswath Govindraju <a-govindraju@...com>,
        Grygorii Strashko <grygorii.strashko@...com>
Subject: Re: [PATCH v2 2/2] arm64: dts: ti: k3-am625-sk: Enable on board
 peripherals

Hi Krzysztof,

On 23/04/22 4:02 pm, Krzysztof Kozlowski wrote:
> On 22/04/2022 08:50, Vignesh Raghavendra wrote:
>> Add nodes for I2C IO expander, OSPI Flash, Eth PHYs, SD and eMMC that
>> are present on AM625 SK board.
>>
>> Signed-off-by: Vignesh Raghavendra <vigneshr@...com>
>> Reviewed-by: Bryan Brattlof <bb@...com>
>> ---
>>  arch/arm64/boot/dts/ti/k3-am625-sk.dts | 273 +++++++++++++++++++++++++
>>  1 file changed, 273 insertions(+)
>>
>> diff --git a/arch/arm64/boot/dts/ti/k3-am625-sk.dts b/arch/arm64/boot/dts/ti/k3-am625-sk.dts
>> index 0de4113ccd5de..5fc35898a1e2e 100644
>> --- a/arch/arm64/boot/dts/ti/k3-am625-sk.dts
>> +++ b/arch/arm64/boot/dts/ti/k3-am625-sk.dts
>> @@ -9,6 +9,7 @@
>>  
>>  #include <dt-bindings/leds/common.h>
>>  #include <dt-bindings/gpio/gpio.h>
>> +#include <dt-bindings/net/ti-dp83867.h>
>>  #include "k3-am625.dtsi"
>>  
>>  / {
>> @@ -17,6 +18,12 @@ / {
>>  
>>  	aliases {
>>  		serial2 = &main_uart0;
>> +		mmc0 = &sdhci0;
>> +		mmc1 = &sdhci1;
>> +		mmc2 = &sdhci2;
>> +		spi0 = &ospi0;
>> +		ethernet0 = &cpsw_port1;
>> +		ethernet1 = &cpsw_port2;
>>  	};
>>  
>>  	chosen {
>> @@ -87,6 +94,33 @@ vcc_3v3_sys: regulator-2 {
>>  		regulator-boot-on;
>>  	};
>>  
>> +	vdd_mmc1: fixed-regulator-sd {
> 
> Don't encode the type of binding into node name. Node name should be
> generic, so either regulator-0 or regulator-sd.
> 
>> +		/* TPS22918DBVR */
>> +		compatible = "regulator-fixed";
>> +		regulator-name = "vdd_mmc1";
>> +		regulator-min-microvolt = <3300000>;
>> +		regulator-max-microvolt = <3300000>;
>> +		regulator-boot-on;
>> +		enable-active-high;
>> +		vin-supply = <&vcc_3v3_sys>;
>> +		gpio = <&exp1 3 GPIO_ACTIVE_HIGH>;
>> +	};
>> +
>> +	vdd_sd_dv: gpio-regulator-TLV71033 {
> 
> The same + do not mix cases, so regulator-1 or regulator-tlv71033

I have fixed this in v3. But had one question though:

Per DT spec, 2.2.3 Path Names seems to indicate node-name-N when N is
1,2,3.. So, is it valid to have regulator-tlv71033 as node-name -> does
not strictly seem to fit into node-name-N format ?

Regards
Vignesh