default or selected kernelversion does not have config value CONFIG_EP93XX_PWM.
Result is shown for kernelversion 6.2.5

EP93xx PWM support

modulename: ep93xx_pwm.ko

configname: CONFIG_EP93XX_PWM

Linux Kernel Configuration
└─>Device Drivers
└─>Misc devices
└─>EP93xx PWM support
In linux kernel since version 2.6.32 (release Date: 2009-12-02)  
This option enables device driver support for the PWM channels
on the Cirrus EP93xx processors. The EP9307 chip only has one
PWM channel all the others have two, the second channel is an
alternate function of the EGPIO14 pin. A sysfs interface is
provided to control the PWM channels.

To compile this driver as a module, choose M here: the module will
be called ep93xx_pwm.

source code: