drm/amdgpu: I2C EEPROM full memory addressing

* "eeprom_addr" is now 32-bit wide.
* Remove "slave_addr" from the I2C EEPROM driver
  interface. The I2C EEPROM Device Type Identifier
  is fixed at 1010b, and the rest of the bits
  of the Device Address Byte/Device Select Code,
  are memory address bits, where the first three
  of those bits are the hardware selection bits.
  All this is now a 19-bit address and passed
  as "eeprom_addr". This abstracts the I2C bus
  for EEPROM devices for this I2C EEPROM driver.
  Now clients only pass the 19-bit EEPROM memory
  address, to the I2C EEPROM driver, as the 32-bit
  "eeprom_addr", from which they want to read from
  or write to.

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]>

1 files changed, 1 insertions, 3 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_eeprom.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_eeprom.h
index 9301e5678910..417472be2712 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_eeprom.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_eeprom.h
@@ -26,9 +26,7 @@
 
 #include <linux/i2c.h>
 
-int amdgpu_eeprom_xfer(struct i2c_adapter *i2c_adap,
-		       u16 slave_addr, u16 eeprom_addr,
+int amdgpu_eeprom_xfer(struct i2c_adapter *i2c_adap, u32 eeprom_addr,
 		       u8 *eeprom_buf, u16 bytes, bool read);
 
-
 #endif