linux-kernel - Re: [PATCH 02/24] arm64: defconfig: Enable Glymur configs for boot to shell

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Message-ID: <wzhfv4v5urehjjlldsdznrnv244pdzpuolofalvj3cerscipch@7gkb5dvjwl4i>
Date: Thu, 25 Sep 2025 20:31:21 +0300
From: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
To: Pankaj Patil <pankaj.patil@....qualcomm.com>
Cc: Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konradybcio@...nel.org>, Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.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 02/24] arm64: defconfig: Enable Glymur configs for boot
 to shell

On Thu, Sep 25, 2025 at 12:02:10PM +0530, Pankaj Patil wrote:
> The serial engine must be properly setup before kernel reaches
> "init",so UART driver and its dependencies needs to be built in.
> Enable its dependency clocks,interconnect and pinctrl as built-in
> to boot Glymur CRD board to UART console with full USB support.
> 
> Signed-off-by: Pankaj Patil <pankaj.patil@....qualcomm.com>
> ---
>  arch/arm64/configs/defconfig | 6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig
> index e3a2d37bd10423b028f59dc40d6e8ee1c610d6b8..9dfec01d347b57b4eae1621a69dc06bb8ecbdff1 100644
> --- a/arch/arm64/configs/defconfig
> +++ b/arch/arm64/configs/defconfig
> @@ -616,6 +616,7 @@ CONFIG_PINCTRL_IMX8ULP=y
>  CONFIG_PINCTRL_IMX91=y
>  CONFIG_PINCTRL_IMX93=y
>  CONFIG_PINCTRL_MSM=y
> +CONFIG_PINCTRL_GLYMUR=y
>  CONFIG_PINCTRL_IPQ5018=y
>  CONFIG_PINCTRL_IPQ5332=y
>  CONFIG_PINCTRL_IPQ5424=y
> @@ -1363,6 +1364,9 @@ CONFIG_COMMON_CLK_MT8192_SCP_ADSP=y
>  CONFIG_COMMON_CLK_MT8192_VDECSYS=y
>  CONFIG_COMMON_CLK_MT8192_VENCSYS=y
>  CONFIG_COMMON_CLK_QCOM=y
> +CONFIG_CLK_GLYMUR_DISPCC=y

DISPCC should not be required for the UART, it can go to =m

> +CONFIG_CLK_GLYMUR_GCC=y
> +CONFIG_CLK_GLYMUR_TCSRCC=y
>  CONFIG_CLK_X1E80100_CAMCC=m
>  CONFIG_CLK_X1E80100_DISPCC=m
>  CONFIG_CLK_X1E80100_GCC=y
> @@ -1641,6 +1645,7 @@ CONFIG_PHY_QCOM_QMP=m
>  CONFIG_PHY_QCOM_QUSB2=m
>  CONFIG_PHY_QCOM_EUSB2_REPEATER=m
>  CONFIG_PHY_QCOM_M31_USB=m
> +CONFIG_PHY_QCOM_M31_EUSB=m

Is this also a dependency for UART?

>  CONFIG_PHY_QCOM_USB_HS=m
>  CONFIG_PHY_QCOM_USB_SNPS_FEMTO_V2=m
>  CONFIG_PHY_QCOM_USB_HS_28NM=m
> @@ -1718,6 +1723,7 @@ CONFIG_INTERCONNECT_IMX8MN=m
>  CONFIG_INTERCONNECT_IMX8MQ=m
>  CONFIG_INTERCONNECT_IMX8MP=y
>  CONFIG_INTERCONNECT_QCOM=y
> +CONFIG_INTERCONNECT_QCOM_GLYMUR=y
>  CONFIG_INTERCONNECT_QCOM_MSM8916=m
>  CONFIG_INTERCONNECT_QCOM_MSM8996=y
>  CONFIG_INTERCONNECT_QCOM_OSM_L3=m
> 
> -- 
> 2.34.1
> 

-- 
With best wishes
Dmitry