From the LS1088A chip Errata,the A-010650 shows the problem of I2C controller,and advieces that use an open drain GPIO pin to connect the I2Cx_SCL.
For I2C1 and I2C2,I use GPIO3_07、GPIO3_11 to connect the I2C1_SCL and I2C2_SCL.
But for I2C3 and I2C4, I see I2C3_SCL and I2C4_SCL can be configured as open GPIO by performing hardware modification, so I don’t use extra GPIO to connect them. Is this usage correct?