linux-kernel - Re: [PATCH V3 2/3] arm64: dts: sc7280: Add QUPv3 wrapper

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Date:   Tue, 08 Jun 2021 13:46:32 +0530
From:   rojay@...eaurora.org
To:     Bjorn Andersson <bjorn.andersson@...aro.org>
Cc:     agross@...nel.org, robh+dt@...nel.org,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Rajendra Nayak <rnayak@...eaurora.org>,
        saiprakash.ranjan@...eaurora.org, msavaliy@....qualcomm.com
Subject: Re: [PATCH V3 2/3] arm64: dts: sc7280: Add QUPv3 wrapper_0 nodes

On 2021-06-06 09:19, Bjorn Andersson wrote:
> On Fri 04 Jun 08:54 CDT 2021, Roja Rani Yarubandi wrote:
> 
>> Add QUPv3 wrapper_0 DT nodes for SC7280 SoC.
>> 
>> Signed-off-by: Roja Rani Yarubandi <rojay@...eaurora.org>
>> ---
>> Changes in V3:
>>  - Broken the huge V2 patch into 3 smaller patches.
>>    1. QSPI DT nodes
>>    2. QUP wrapper_0 DT nodes
>>    3. QUP wrapper_1 DT nodes
>> 
>> Changes in V2:
>>  - As per Doug's comments removed pinmux/pinconf subnodes.
>>  - As per Doug's comments split of SPI, UART nodes has been done.
>>  - Moved QSPI node before aps_smmu as per the order.
>> 
>>  arch/arm64/boot/dts/qcom/sc7280-idp.dts |  97 ++-
>>  arch/arm64/boot/dts/qcom/sc7280.dtsi    | 750 
>> +++++++++++++++++++++++-
>>  2 files changed, 835 insertions(+), 12 deletions(-)
>> 
>> diff --git a/arch/arm64/boot/dts/qcom/sc7280-idp.dts 
>> b/arch/arm64/boot/dts/qcom/sc7280-idp.dts
>> index d0edffc15736..f57458dbe763 100644
>> --- a/arch/arm64/boot/dts/qcom/sc7280-idp.dts
>> +++ b/arch/arm64/boot/dts/qcom/sc7280-idp.dts
>> @@ -292,6 +292,16 @@ &uart5 {
>>  	status = "okay";
>>  };
>> 
>> +&uart7 {
>> +	status = "okay";
>> +
>> +	/delete-property/interrupts;
>> +	interrupts-extended = <&intc GIC_SPI 608 IRQ_TYPE_LEVEL_HIGH>,
>> +				<&tlmm 31 IRQ_TYPE_EDGE_FALLING>;
>> +	pinctrl-names = "default", "sleep";
>> +	pinctrl-1 = <&qup_uart7_sleep_cts>, <&qup_uart7_sleep_rts>, 
>> <&qup_uart7_sleep_tx>, <&qup_uart7_sleep_rx>;
>> +};
>> +
>>  /* PINCTRL - additions to nodes defined in sc7280.dtsi */
>> 
>>  &qspi_cs0 {
>> @@ -307,16 +317,87 @@ &qspi_data01 {
>>  	bias-pull-up;
>>  };
>> 
>> -&qup_uart5_default {
>> -	tx {
>> -		pins = "gpio46";
> 
> Commit message says "add stuff", but somehow uart5 is no longer
> gpio46/47 and these gpios are no longer specified.
> 
> Can you roll this in a way where the giant patch actually _only_ adds
> a whole bunch of stuff?
> 
>> -		drive-strength = <2>;
>> -		bias-disable;
>> +&qup_uart5_tx {
>> +	drive-strength = <2>;
>> +	bias-disable;
>> +};
>> +
> 
> Regards,
> Bjorn


Okay, so shall I split this 2/3rd patch into two with
one patch modifying uart5 node and the other one with
_only_ adds rest all nodes?

Thanks,
Roja