Re:Re: [PATCH 0/6] Add support for RK3588 DisplayPort Controller

[Andy Yan]

Hi Piotr,

在 2025-03-05 21:56:12，"Piotr Oniszczuk" <piotr.oniszczuk@xxxxxxxxx> 写道：
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>> Wiadomość napisana przez Andy Yan <andyshrk@xxxxxxx> w dniu 5 mar 2025, o godz. 03:30:
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>> I only see the HDMI connector from your dri/state ; so it appears the DP driver hasn't been successfully
>> initialized（I think kernel dmesg can tell that）. 
>> Have you enabled CONFIG_ROCKCHIP_DW_DP ? This is needed.
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>Andy,
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>Do you mean CONFIG_ROCKCHIP_DW_DP or CONFIG_DRM_DW_DP ?
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>If CONFIG_DRM_DW_DP - then yes - i have it: https://github.com/warpme/minimyth2/blob/2e267842b1033bbc4c2c5d80c1756a142e347cc5/script/kernel/linux-6.14/files/linux-6.14-arm64-armv8.config#L5024
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>Kernel dmesg: https://termbin.com/uiup


Both of the two config options should be enabled.
andy@Pro480:~/WorkSpace/linux-next$ rg DW_DP .config
4044:CONFIG_ROCKCHIP_DW_DP=y
4218:CONFIG_DRM_DW_DP=y

And if dw dp driver boots success, you will see dmesg like bellow:

 [    1.058634] arm-smmu-v3 fc900000.iommu: msi_domain absent - falling back to wired irqs
[    1.062458] rockchip-vop2 fdd90000.vop: Adding to iommu group 0
[    1.067908] rockchip-drm display-subsystem: bound fdd90000.vop (ops vop2_component_ops)
[    1.068981] rockchip-drm display-subsystem: bound fde60000.dp (ops dw_dp_rockchip_component_ops)
[    1.070133] dwhdmiqp-rockchip fde80000.hdmi: registered DesignWare HDMI QP I2C bus driver
[    1.070859] rockchip-drm display-subsystem: bound fde80000.hdmi (ops dw_hdmi_qp_rockchip_ops)
[    1.072103] [drm] Initialized rockchip 1.0.0 for display-subsystem on minor 0
[    1.080191] loop: module loaded

But I just see hdmi  driver boots from your dmesg.

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