Legacy A31 PRCM driver

modulename: clk-sun6i-apb0.ko

and/or

clk-sun6i-apb0-gates.ko

and/or

clk-sun6i-ar100.ko

configname: CONFIG_CLK_SUNXI_PRCM_SUN6I

Linux Kernel Configuration
└─>Device Drivers
└─>Common Clock Framework
└─>Legacy clock support for Allwinner SoCs
└─>Legacy A31 PRCM driver
In linux kernel since version 5.1 (release Date: 2019-05-05)  
Legacy clock driver for the A31 PRCM clocks. Those are
usually needed for the PMIC communication, mostly.

source code:
drivers/clk/sunxi/clk-sun6i-apb0.c