However, "drivers for MSM8953 on ARM64" is a broad topic. This article breaks down exactly what drivers you need, where to find them, and how they interact with ARM64 Linux kernels.

When writing or porting drivers for this SoC, you aren't just dealing with the CPU; you are interfacing with several proprietary subsystems: Requires the msm or freedreno DRM driver. Hexagon DSP: Managed via the Quic (Qualcomm) Framework.

These use highly customized, often messy drivers provided by Qualcomm (CAF). They rely on specific Android-only hooks like ion for memory management.

MSM8953 is a Qualcomm Snapdragon processor, specifically a 64-bit octa-core processor based on ARMv8 architecture. It's commonly used in mid-range Android devices.

// msm8953_arm64_dummy.c #include <linux/module.h> #include <linux/kernel.h> #include <linux/init.h>

Drivers for the MSM8953 are generally categorized into (vendor-specific) and Mainline (upstream Linux) versions. Mainline Linux Development

This article dissects the MSM8953’s architecture, its driver stack for modern ARM64 Linux kernels (4.9, 4.14, 4.19, and beyond), compatibility issues, and how developers are adapting vendor binaries to run Android 12/13/14.

If you are looking to understand or implement , this guide covers the architectural essentials, the role of the Device Tree, and the current state of mainline Linux support. Understanding the MSM8953 Architecture

CONFIG_ARCH_QCOM=y CONFIG_DRM_MSM=y CONFIG_DRM_MSM_REGISTER_LOGGING=y CONFIG_SERIAL_MSM=y CONFIG_PINCTRL_MSM8953=y CONFIG_CLK_QCOM=y CONFIG_GCC_MSM8953=y Use code with caution. Step 3: Build Kernel and Device Trees

Every ARM64 driver requires a matching entry in the Device Tree Source (DTS) file. The device tree tells the kernel where the hardware lives in memory, which interrupts it uses, and what clocks it requires.

In arm64 Linux development, hardware configuration is separated from driver logic. Drivers interact with the hardware through Device Tree Source ( .dts and .dtsi ) files located in the kernel source tree under arch/arm64/boot/dts/qcom/msm8953.dtsi .

The MSM8953 utilizes a 64-bit ARMv8-A architecture, specifically eight Cortex-A53

: Efforts exist to run modern Linux kernels (e.g., v6.11) on MSM8953, including drivers for the GPU (Adreno 506), WiFi (WCN36xx), and camera (CAMSS) .

Ensure the compatible string in the C file matches the entry in the Device Tree exactly.