default or selected kernelversion does not have config value CONFIG_DRM_PANEL_ROCKTECH_JH057N00900.
Result is shown for kernelversion 6.9.2

Rocktech JH057N00900 MIPI touchscreen panel

modulename: panel-rocktech-jh057n00900.ko

configname: CONFIG_DRM_PANEL_ROCKTECH_JH057N00900

Linux Kernel Configuration
└─>Device Drivers
└─>Graphics support
└─>Direct Rendering Manager (XFree86 4.1.0 and higher DRI support)
└─>Display Panels
└─>Device Tree and Open Firmware support
└─>Rocktech JH057N00900 MIPI touchscreen panel
In linux kernel since version 5.2 (release Date: 2019-07-07)  
Say Y here if you want to enable support for Rocktech JH057N00900
MIPI DSI panel as e.g. used in the Librem 5 devkit. It has a
resolution of 720x1440 pixels, a built in backlight and touch
controller.
Touch input support is provided by the goodix driver and needs to be
selected separately.

source code: