Msm8953 For Arm64 Driver

The MSM8953, commercially known as the Snapdragon 625, is one of the most iconic chipsets in mobile history. Renowned for its power efficiency and thermal stability, it remains a favorite for developers working on Linux mainline porting and ARM64 driver development.

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.

: Includes the Hexagon 546 DSP, X9 LTE modem, and dual image signal processors (ISPs). Mainline Status

Mandatory

CONFIG_ARCH_QCOM=y CONFIG_ARM64_64K_PAGES=y # Most vendor bootloaders expect 4K pages, but 64K works if you repack boot.img correctly. CONFIG_MSM_IPC_LOGGING=n # Deprecated

Feature Name: CFQ (Completely Fair Queuing) Group Scheduling (CONFIG_CFQ_GROUP_SCHED)

#ifdef CONFIG_ARM64 pr_info("MSM8953 ARM64 driver loaded on 64-bit kernel\n"); #else pr_info("MSM8953 driver loaded on non-ARM64 kernel (check config)\n"); #endif return 0;

PCI / IOMMU

• ARM64 SMMU (IOMMU) support exists via qcom_iommu for GPU, display, USB. Works in mainline.

Apply correct ALSA UCM files for audio to function, often found in msm8916-mainline repositories.