MSM8998 Global Clock Controller

modulename: gcc-msm8998.ko

configname: CONFIG_MSM_GCC_8998

Linux Kernel Configuration
└─>Device Drivers
└─>Common Clock Framework
└─>MSM8998 Global Clock Controller
In linux kernel since version 3.10 (release Date: 2013-06-30)  
Support for the global clock controller on msm8998 devices.
Say Y if you want to use peripheral devices such as UART, SPI,
i2c, USB, UFS, SD/eMMC, PCIe, etc.

source code:
drivers/clk/qcom/gcc-msm8998.c