default or selected kernelversion does not have config value CONFIG_ROCKCHIP_DW_HDMI_QP.
Result is shown for kernelversion 6.6.75

Rockchip specific extensions for Synopsys DW HDMI QP

configname: CONFIG_ROCKCHIP_DW_HDMI_QP

Linux Kernel Configuration
└─>Device Drivers
└─>Graphics support
└─>Direct Rendering Manager (XFree86 4.1.0 and higher DRI support)
└─>Rockchip specific extensions for Synopsys DW HDMI QP
In linux kernel since version 6.13 (release Date: 2025-01-19)  
This selects support for Rockchip SoC specific extensions
for the Synopsys DesignWare HDMI QP driver. If you want to
enable HDMI on RK3588 based SoC, you should select this option.