Msm8953 For Arm64 Driver 🔥 Bonus Inside

To understand the driver requirements of the MSM8953, one must first understand the hardware it was designed to support. The MSM8953 was a pioneering chip for the Arm64 instruction set. Manufactured on a 14nm FinFET process—a first for the mid-range segment—it featured an octa-core Cortex-A53 CPU configuration.

: These are the original vendor drivers found in repositories like Xiaomi MSM8953 Android kernel sources

Vendor kernels for MSM8953 are usually based on older Long-Term Support (LTS) Linux versions, typically or 4.9 . msm8953 for arm64 driver

This article provides a comprehensive deep dive into the msm8953 platform, exploring its ARM64 architecture, the essential drivers that bring its hardware to life, and the current state of its support in the Linux kernel.

If you need for MSM8953 today:

static int __init dummy_init(void)

Let’s demonstrate a simple virtual character driver for MSM8953 on ARM64. This logs the CPU architecture at insmod time. To understand the driver requirements of the MSM8953,

The Wireless Connectivity Subsystem (WCNSS) handles both Wi-Fi and Bluetooth. On msm8953 , this is enabled through a remoteproc driver. The remoteproc framework is responsible for booting and managing the remote processor (a dedicated core that runs the Wi-Fi firmware).

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: The camera subsystem uses a Kernel Mode Driver (KMD) to program hardware and a User Mode Driver (UMD) for high-level control through the qmmf-server

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 : These are the original vendor drivers found