Merge branch 'x86/cpu' from tip

[cascardo/linux.git] / drivers / gpu / drm / amd / amdgpu / atombios_i2c.c

diff --git a/drivers/gpu/drm/amd/amdgpu/atombios_i2c.c b/drivers/gpu/drm/amd/amdgpu/atombios_i2c.c
index 13cdb01..bc56c8a 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/atombios_i2c.c
+++ b/drivers/gpu/drm/amd/amdgpu/atombios_i2c.c
@@ -156,3 +156,18 @@ u32 amdgpu_atombios_i2c_func(struct i2c_adapter *adap)
        return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL;
 }
 
+void amdgpu_atombios_i2c_channel_trans(struct amdgpu_device* adev, u8 slave_addr, u8 line_number, u8 offset, u8 data)
+{
+       PROCESS_I2C_CHANNEL_TRANSACTION_PS_ALLOCATION args;
+       int index = GetIndexIntoMasterTable(COMMAND, ProcessI2cChannelTransaction);
+
+       args.ucRegIndex = offset;
+       args.lpI2CDataOut = data;
+       args.ucFlag = 1;
+       args.ucI2CSpeed = TARGET_HW_I2C_CLOCK;
+       args.ucTransBytes = 1;
+       args.ucSlaveAddr = slave_addr;
+       args.ucLineNumber = line_number;
+
+       amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args);
+}