This article shares 2 step by step methods to create P2P connections between 2 IW612 modules. One is not setting pin code, another is setting pin code. And also shares local test results and printed logs for your reference.
The basic environment:
Hardware: 2 IW612 modules(Murata LBES5PL2EL) + I.MX93-EVK
Software: Linux 6.12.20
Wi-Fi Driver and FW version = SDIW612---w9177o-V1, SDIO, FP99, 18.99.3.p25.7-MM6X18537.p9-GPL-(FP92) 
As a reference, you can also test on other NXP's Wi-Fi products based on Linux OS.
Best regards,
Christine.