Driving the Snapdragon 625: A Guide to MSM8953 arm64 Driver Development The Qualcomm Snapdragon 625
The Hexagon 546 DSP runs on a separate firmware. The driver is q6asm, q6adm, q6afe via the apr (Asynchronous Packet Router) protocol. msm8953 for arm64 driver
Add these config flags to your defconfig: Driving the Snapdragon 625: A Guide to MSM8953
RPM (Resource Power Manager): A dedicated Cortex-M3 core that handles clock and voltage scaling. The Role of the Device Tree (DTS) msm8953 for arm64 driver
module_init(msm8953_test_init); module_exit(msm8953_test_exit);When porting MSM8953 drivers to a new ARM64 kernel (e.g., upgrading from 4.9 to 4.19 or 5.x):