linux-kernel - Re: [PATCH] arm64: dts: qcom: ipq9574: enable the SPI NOR support in RDP433

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Date:   Wed, 14 Jun 2023 12:02:54 +0530
From:   Kathiravan T <quic_kathirav@...cinc.com>
To:     Konrad Dybcio <konrad.dybcio@...aro.org>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        <linux-arm-msm@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] arm64: dts: qcom: ipq9574: enable the SPI NOR support in
 RDP433


On 6/9/2023 2:37 PM, Konrad Dybcio wrote:
>
> On 9.06.2023 10:15, Kathiravan T wrote:
>> RDP433 has the support for SPI NOR, add the support for it.
>>
>> Signed-off-by: Kathiravan T <quic_kathirav@...cinc.com>
>> ---
>> Note: This patch was part of initial submission
>> https://lore.kernel.org/linux-arm-msm/20230329053726.14860-1-quic_kathirav@quicinc.com/
>> however this got missed in between, so sending it across again.
>>
>>   arch/arm64/boot/dts/qcom/ipq9574-rdp433.dts | 21 +++++++++++++++++++++
>>   1 file changed, 21 insertions(+)
>>
>> diff --git a/arch/arm64/boot/dts/qcom/ipq9574-rdp433.dts b/arch/arm64/boot/dts/qcom/ipq9574-rdp433.dts
>> index 2b3ed8d351f7..31ee19112157 100644
>> --- a/arch/arm64/boot/dts/qcom/ipq9574-rdp433.dts
>> +++ b/arch/arm64/boot/dts/qcom/ipq9574-rdp433.dts
>> @@ -48,6 +48,20 @@
>>   	};
>>   };
>>   
>> +&blsp1_spi0 {
>> +	pinctrl-0 = <&spi_0_pins>;
>> +	pinctrl-names = "default";
>> +	status = "okay";
>> +
>> +	flash@0 {
>> +		compatible = "micron,n25q128a11", "jedec,spi-nor";
>> +		reg = <0>;
>> +		#address-cells = <1>;
>> +		#size-cells = <1>;
> If you're not adding a partition table, you can drop the address-
> and size-cells properties, as they determine what the reg value of
> the child looks like.


Sorry, somehow I missed this query. Will check and update it.


>
> Konrad
>> +		spi-max-frequency = <50000000>;
>> +	};
>> +};
>> +
>>   &sdhc_1 {
>>   	pinctrl-0 = <&sdc_default_state>;
>>   	pinctrl-names = "default";
>> @@ -96,6 +110,13 @@
>>   			bias-pull-down;
>>   		};
>>   	};
>> +
>> +	spi_0_pins: spi-0-state {
>> +		pins = "gpio11", "gpio12", "gpio13", "gpio14";
>> +		function = "blsp0_spi";
>> +		drive-strength = <8>;
>> +		bias-disable;
>> +	};
>>   };
>>   
>>   &xo_board_clk {