USB: serial: ftdi_sio: Add MTP NVM support

Hi Andy,

Quoted 7 lines · Andy Shevchenko

Review

Quoted 2 lines · Loic Poulain

(quoted diff) +2 -0

+#define EEPROM_SZ_FTX 2048 /* cf FTDI AN_201 */
+#define EEPROM_SZ_FT232RL 128  /* cf FTDI AN_121 */

These defines looks too particular, shouldn't be this a part of driver data / platform data / device properties?

I'm not sure where to move this since it depends on chip type which is detected at runtime. I don't think ftdi_sio_quirk is the right place. So maybe I could just skip the defines for now and come back to:

switch (priv->chip_type) {
    case FTX:
        nvmconf.size = SZ_2K;
        break;

...