drm/amdgpu: Fixes to the AMDGPU EEPROM driver

* When reading from the EEPROM device, there is no
  device limitation on the number of bytes
  read--they're simply sequenced out. Thus, read
  the whole data requested in one go.

* When writing to the EEPROM device, there is a
  256-byte page limit to write to before having to
  generate a STOP on the bus, as well as the
  address written to mustn't cross over the page
  boundary (it actually rolls over). Maximize the
  data written to per bus acquisition.

* Return the number of bytes read/written, or -errno.

* Add kernel doc.

Cc: Jean Delvare <[email protected]>
Cc: Alexander Deucher <[email protected]>
Cc: Andrey Grodzovsky <[email protected]>
Cc: Lijo Lazar <[email protected]>
Cc: Stanley Yang <[email protected]>
Cc: Hawking Zhang <[email protected]>
Signed-off-by: Luben Tuikov <[email protected]>
Acked-by: Alexander Deucher <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>

0 files changed, 0 insertions, 0 deletions