Wang Caesar
Software Engineer at Rockchip
Fujian, China
Summary
🤩
RockstarWang Caesar is an experienced embedded software engineer with 11 years at Rockchip, specializing in low-level firmware, kernel BSPs, and power/thermal management for Rockchip SoCs. He has contributed to high-profile open-source projects such as coreboot and ARM Trusted Firmware, implementing board-specific power sequences, DDR tuning, UART and GPIO fixes, and suspend/resume support for RK3399. His contributions reveal a practical focus on hardware quirks—EMI mitigation, regulator tuning, and sleep-state pinctrl—that improve real-world device reliability. Based in Fujian, China, he combines deep platform knowledge with hands-on kernel and bootloader development, often bridging cross-layer issues from boot to kernel drivers. An engineer who prefers solving the gritty, device-level problems that make embedded systems robust in production.
11 years of coding experience
Github Skills (29)
architecture10
r10
firmware10
rockchip10
c1110
linux-kernel10
power-management10
c1710
kernel10
gpio10
device-tree10
low-level-programming10
dts10
soc10
sys10
Programming languages (7)
Github contributions (5)
rockchip-linux/kernel
Oct 2015 - Sep 2022
BSP kernel source
Role in this project:
Embedded Systems Engineer / IoT Developer
Embedded Systems Engineer / IoT DeveloperContributions:145 commits, 6 pushes, 9 branches in 7 years
Contributions summary:Wang's contributions primarily focused on the rockchip thermal driver within the Linux kernel, as indicated by the commit messages and file modifications. Their work involved adding support for various Rockchip SoCs (RK3368, RK3228, RK3399) and addressing thermal-related issues, such as glitches during system suspend/resume and compiler errors. The user consistently introduced features like the use of a "sleep" pinctrl state, improved conversion functions, and added the ability to set and configure hardware-tracked trip points, demonstrating a deep understanding of thermal management in embedded systems. They also updated DTS files with the appropriate configuration data.
kernelkernel-sourcelinuxlinux-kernelbsp
ARM-software/arm-trusted-firmware
Apr 2016 - Jan 2018
Read-only mirror of Trusted Firmware-A
Role in this project:Embedded Systems Engineer / IoT Developer
Embedded Systems Engineer / IoT DeveloperContributions:41 commits, 4 PRs, 41 comments in 1 year 10 months
Contributions summary:Wang primarily contributed to the platform-specific code for the Arm Trusted Firmware-A project. Their work focused on the Rockchip RK3399 platform, addressing issues related to bootloader and power management. This included fixing UART baud rate settings, ensuring correct memory base addresses, and implementing power management features like suspend/resume. The user also added support for GPIO drivers, including the ability to set and get pull-up/pull-down configurations.
trustedread-onlyfirmwareembedded
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