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

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Date:   Sat, 5 Jun 2021 22:49:54 -0500
From:   Bjorn Andersson <bjorn.andersson@...aro.org>
To:     Roja Rani Yarubandi <rojay@...eaurora.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 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