Previously, ARM had filed a lawsuit against Qualcomm on the issue of violating ARM's technology license agreement due to new technologies introduced and used by Qualcomm, especially after the Nuvia acquisition.
The issue was apparently settled in court at the end of last year, where the jury found that Qualcomm did not violate any agreement, and this court case should have been buried there.
Recently, it was reported that Qualcomm is apparently trying to file an antitrust complaint against ARM with three regulatory bodies, including the United States Federal Commission in the United States, the European Commission in Europe and the Korea Fair Trade Commission in South Korea.
The complaint highlighted by Qualcomm is about how ARM is now seen to be restricting the use of their processor chip technologies against processor chip manufacturers.
The current understanding is that ARM-developed technology can be used by anyone who wants to use it because it is enshrined in an open source agreement, but Qualcomm seems to believe that ARM has begun to restrict the use of certain technologies such as their compute subsystems that are optimized for use with AI technology.
ARM says that this claim is untrue, and they seem to be continuing to develop new technologies that can be used by anyone who licenses the use of their technology. We will soon find out what the next steps of these regulatory bodies are soon.