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Date: Thu, 14 Dec 2023 12:34:14 -0600
From: Ninad Palsule <ninad@...ux.ibm.com>
To: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, conor+dt@...nel.org, joel@....id.au,
        andrew@...econstruct.com.au, peterhuewe@....de, jarkko@...nel.org,
        jgg@...pe.ca, keescook@...omium.org, tony.luck@...el.com,
        gpiccoli@...lia.com, johannes.holland@...ineon.com, linux@...ck-us.net,
        broonie@...nel.org
Cc: patrick.rudolph@...ements.com, vincent@...emblay.dev,
        peteryin.openbmc@...il.com, lakshmiy@...ibm.com, bhelgaas@...gle.com,
        naresh.solanki@...ements.com, alexander.stein@...tq-group.com,
        festevam@...x.de, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-aspeed@...ts.ozlabs.org,
        linux-kernel@...r.kernel.org, linux-integrity@...r.kernel.org,
        linux-hardening@...r.kernel.org, geissonator@...oo.com
Subject: Re: [PATCH v1 4/8] ARM: dts: aspeed: System1: Add i2c and muxes

Hello Krzysztof,

On 12/12/23 14:21, Krzysztof Kozlowski wrote:
> On 12/12/2023 17:40, Ninad Palsule wrote:
>> This commit adds i2c devices and muxes.
>>
>> Tested:
>>      This board is tested using the simics simulator.
>>
>> Signed-off-by: Ninad Palsule <ninad@...ux.ibm.com>
>> ---
>>   .../dts/aspeed/aspeed-bmc-ibm-system1.dts     | 577 ++++++++++++++++++
>>   1 file changed, 577 insertions(+)
>>
> Why do you split new submission into multiple chunks? The logical
> feature here is new board, so all your DTS patches adding new board
> should be in one patch.
Oh,ok. I thought it might be easier to review but now I squashed them 
together.
>
>> diff --git a/arch/arm/boot/dts/aspeed/aspeed-bmc-ibm-system1.dts b/arch/arm/boot/dts/aspeed/aspeed-bmc-ibm-system1.dts
>> index 01291b407f59..0557bff9f36a 100644
>> --- a/arch/arm/boot/dts/aspeed/aspeed-bmc-ibm-system1.dts
>> +++ b/arch/arm/boot/dts/aspeed/aspeed-bmc-ibm-system1.dts
>> @@ -11,6 +11,65 @@ / {
>>   	model = "System1";
>>   	compatible = "ibm,system1-bmc", "aspeed,ast2600";
>>   
>> +	aliases {
>> +		i2c16 = &i2c8mux1chn0;
>> +		i2c17 = &i2c8mux1chn1;
>> +		i2c18 = &i2c8mux1chn2;
>> +		i2c19 = &i2c8mux1chn3;
>> +		i2c20 = &i2c8mux1chn4;
>> +		i2c21 = &i2c8mux1chn5;
>> +		i2c22 = &i2c8mux1chn6;
>> +		i2c23 = &i2c8mux1chn7;
>> +		i2c24 = &i2c3mux0chn0;
>> +		i2c25 = &i2c3mux0chn1;
>> +		i2c26 = &i2c3mux0chn2;
>> +		i2c27 = &i2c3mux0chn3;
>> +		i2c28 = &i2c3mux0chn4;
>> +		i2c29 = &i2c3mux0chn5;
>> +		i2c30 = &i2c3mux0chn6;
>> +		i2c31 = &i2c3mux0chn7;
>> +		i2c32 = &i2c6mux0chn0;
>> +		i2c33 = &i2c6mux0chn1;
>> +		i2c34 = &i2c6mux0chn2;
>> +		i2c35 = &i2c6mux0chn3;
>> +		i2c36 = &i2c6mux0chn4;
>> +		i2c37 = &i2c6mux0chn5;
>> +		i2c38 = &i2c6mux0chn6;
>> +		i2c39 = &i2c6mux0chn7;
>> +		i2c40 = &i2c7mux0chn0;
>> +		i2c41 = &i2c7mux0chn1;
>> +		i2c42 = &i2c7mux0chn2;
>> +		i2c43 = &i2c7mux0chn3;
>> +		i2c44 = &i2c7mux0chn4;
>> +		i2c45 = &i2c7mux0chn5;
>> +		i2c46 = &i2c7mux0chn6;
>> +		i2c47 = &i2c7mux0chn7;
>> +		i2c48 = &i2c8mux0chn0;
>> +		i2c49 = &i2c8mux0chn1;
>> +		i2c50 = &i2c8mux0chn2;
>> +		i2c51 = &i2c8mux0chn3;
>> +		i2c52 = &i2c8mux0chn4;
>> +		i2c53 = &i2c8mux0chn5;
>> +		i2c54 = &i2c8mux0chn6;
>> +		i2c55 = &i2c8mux0chn7;
>> +		i2c56 = &i2c14mux0chn0;
>> +		i2c57 = &i2c14mux0chn1;
>> +		i2c58 = &i2c14mux0chn2;
>> +		i2c59 = &i2c14mux0chn3;
>> +		i2c60 = &i2c14mux0chn4;
>> +		i2c61 = &i2c14mux0chn5;
>> +		i2c62 = &i2c14mux0chn6;
>> +		i2c63 = &i2c14mux0chn7;
>> +		i2c64 = &i2c15mux0chn0;
>> +		i2c65 = &i2c15mux0chn1;
>> +		i2c66 = &i2c15mux0chn2;
>> +		i2c67 = &i2c15mux0chn3;
>> +		i2c68 = &i2c15mux0chn4;
>> +		i2c69 = &i2c15mux0chn5;
>> +		i2c70 = &i2c15mux0chn6;
>> +		i2c71 = &i2c15mux0chn7;
>> +	};
>> +
>>   	chosen {
>>   		stdout-path = &uart5;
>>   		bootargs = "console=ttyS4,115200n8 earlycon";
>> @@ -54,10 +113,12 @@ vga_memory: region@...00000 {
>>   			reg = <0xbf000000 0x01000000>;  /* 16M */
>>   		};
>>   	};
>> +
> You need to clean your patchset...
I made changes about the stdout-path, is that what you mean?
>
>
>>   };
>>   
>>   &adc1 {
>>   	status = "okay";
>> +
> Really.
I need to add "status = okay" otherwise its not instantiated.
>
>>   	aspeed,int-vref-microvolt = <2500000>;
>>   	pinctrl-names = "default";
>>   	pinctrl-0 = <&pinctrl_adc8_default
>> @@ -186,3 +247,519 @@ &kcs3 {
>>   	aspeed,lpc-io-reg = <0xca2>;
>>   	aspeed,lpc-interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
>>   };
>> +
>> +&i2c0 {
>> +	status = "okay";
>> +};
>> +
>> +&i2c1 {
>> +	status = "okay";
>> +};
>> +
>> +&i2c2 {
>> +	status = "okay";
>> +};
>> +
>> +&i2c3 {
>> +	status = "okay";
>> +
>> +	i2c-mux@70 {
>> +		compatible = "nxp,pca9548";
>> +		reg = <0x70>;
>> +		#address-cells = <1>;
>> +		#size-cells = <0>;
>> +		status = "okay";
> Drop
Done.
>
>> +		i2c-mux-idle-disconnect;
>> +
>> +		i2c3mux0chn0: i2c@0 {
>> +			#address-cells = <1>;
>> +			#size-cells = <0>;
>> +			reg = <0>;
>> +		};
>> +
>> +		i2c3mux0chn1: i2c@1 {
>> +			#address-cells = <1>;
>> +			#size-cells = <0>;
>> +			reg = <1>;
>> +		};
>> +
>> +		i2c3mux0chn2: i2c@2 {
>> +			#address-cells = <1>;
>> +			#size-cells = <0>;
>> +			reg = <2>;
>> +		};
>> +
>> +		i2c3mux0chn3: i2c@3 {
>> +			#address-cells = <1>;
>> +			#size-cells = <0>;
>> +			reg = <3>;
>> +		};
>> +
>> +		i2c3mux0chn4: i2c@4 {
>> +			#address-cells = <1>;
>> +			#size-cells = <0>;
>> +			reg = <4>;
>> +		};
>> +
>> +		i2c3mux0chn5: i2c@5 {
>> +			#address-cells = <1>;
>> +			#size-cells = <0>;
>> +			reg = <5>;
>> +		};
>> +
>> +		i2c3mux0chn6: i2c@6 {
>> +			#address-cells = <1>;
>> +			#size-cells = <0>;
>> +			reg = <6>;
>> +		};
>> +
>> +		i2c3mux0chn7: i2c@7 {
>> +			#address-cells = <1>;
>> +			#size-cells = <0>;
>> +			reg = <7>;
>> +		};
>> +	};
>> +};
>> +
>> +&i2c4 {
>> +	status = "okay";
>> +};
>> +
>> +&i2c5 {
>> +	status = "okay";
>> +};
>> +
>> +&i2c6 {
>> +	status = "okay";
>> +
>> +	i2c-mux@70 {
>> +		compatible = "nxp,pca9548";
>> +		reg = <0x70>;
>> +		#address-cells = <1>;
>> +		#size-cells = <0>;
>> +		status = "okay";
> Drop

Done

Thanks for the review.

Regards,

Ninad

>
> Other places as well.
>
>
> Best regards,
> Krzysztof
>

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