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third times the charm?

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This commit is contained in:
Adam Honse
2022-09-29 19:49:34 -05:00
parent 6ea107f868
commit 852d33b30b
1 changed files with 5 additions and 9 deletions
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14
i2c_smbus/i2c_smbus_amdadl.cpp
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@@ -181,21 +181,17 @@ s32 i2c_smbus_amdadl::i2c_smbus_xfer(u8 addr, char read_write, u8 command, int s
if (read_write == I2C_SMBUS_READ)
{
/* An SMBus read is a one-byte write followed by a repeat start read */
pI2C->iOffset = 0;
pI2C->iAction = ADL_DL_I2C_ACTIONWRITE;
pI2C->iDataSize = 1;
pI2C->pcData = (char *)&command;
ret = ADL2_Display_WriteAndReadI2C(context, PrimaryDisplay, pI2C);
pI2C->iAction = ADL_DL_I2C_ACTIONREAD_REPEATEDSTART;
/* An SMBus read can be achieved by setting the offset to the command (register address) */
pI2C->iOffset = command;
pI2C->iAction = ADL_DL_I2C_ACTIONREAD;
pI2C->iDataSize = data_size;
pI2C->pcData = (char *)data;
ret = ADL2_Display_WriteAndReadI2C(context, PrimaryDisplay, pI2C);
}
else
{
/* An SMBus write has one extra byte, the register address, before the data */
pI2C->iAction = ADL_DL_I2C_ACTIONWRITE;
pI2C->iDataSize = data_size + 1;
pI2C->pcData = i2c_buf;