RTEMS | Add the support for i2c driver in the aarch64/raspberrypi bsp (!363)

[Gedare Bloom (@gedare)]

Gedare Bloom commented on a discussion on bsps/aarch64/raspberrypi/i2c/raspberrypi-i2c.c: https://gitlab.rtems.org/rtems/rtos/rtems/-/merge_requests/363#note_125322

 > +        return;
 > +      }
 > +    }
 > +  }
 > +}
 > +
 > +static void i2c_polling_write( raspberrypi_i2c_bus *bus )
 > +{
 > +  while ( !( S_REG( bus ) & S_DONE ) && ( bus->remaining_bytes > 0 ) ) {
 > +    while ( bus->remaining_bytes > 0 && ( S_REG( bus ) & S_TXD ) ) {
 > +      BCM2835_REG( bus->base_address + BCM2711_I2C_FIFO ) = *(
 > +        bus->current_buffer
 > +      );
 > +      bus->current_buffer++;
 > +      bus->remaining_bytes--;
 > +    }

I guess my question is whether you need to return an error code?

-- 
View it on GitLab: https://gitlab.rtems.org/rtems/rtos/rtems/-/merge_requests/363#note_125322
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