by default the function of I2C1 is I2C_SCL_AUDIO&I2C_SDA_AUDIO and is wired to the MIPI DSI port of Rockpi4a as shown here
this picture is taken from Rockpi4a v1.3 schematic
but i want to use bigtree pitft5 inch with my rockpi4a which uses the DSI i2c for touchpanel and due to that i2c being configured as audio the touch dosent work is there any way to change the function of i2c1 or any other way to change the i2c port in raspberrypi-7-inch-lcd device overlay