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drm/amdgpu: fix power distribution issue for Polaris10 XT 

Signed-off-by: Ken Wang <Qingqing.Wang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Ken Wang 2016-07-11 13:33:40 +08:00 committed by Alex Deucher
parent 795c2109c2
commit eeade25ad0
3 changed files with 22 additions and 0 deletions
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15
drivers/gpu/drm/amd/amdgpu/atombios_i2c.c
View File

@ -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);
}

2
drivers/gpu/drm/amd/amdgpu/atombios_i2c.h
View File

@ -27,5 +27,7 @@
int amdgpu_atombios_i2c_xfer(struct i2c_adapter *i2c_adap,
struct i2c_msg *msgs, int num);
u32 amdgpu_atombios_i2c_func(struct i2c_adapter *adap);
void amdgpu_atombios_i2c_channel_trans(struct amdgpu_device* adev,
u8 slave_addr, u8 line_number, u8 offset, u8 data);
#endif

5
drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
View File

@ -28,6 +28,7 @@
#include "vid.h"
#include "amdgpu_ucode.h"
#include "amdgpu_atombios.h"
#include "atombios_i2c.h"
#include "clearstate_vi.h"
#include "gmc/gmc_8_2_d.h"
@ -698,6 +699,10 @@ static void gfx_v8_0_init_golden_registers(struct amdgpu_device *adev)
polaris10_golden_common_all,
(const u32)ARRAY_SIZE(polaris10_golden_common_all));
WREG32_SMC(ixCG_ACLK_CNTL, 0x0000001C);
if (adev->pdev->revision == 0xc7) {
amdgpu_atombios_i2c_channel_trans(adev, 0x10, 0x96, 0x1E, 0xDD);
amdgpu_atombios_i2c_channel_trans(adev, 0x10, 0x96, 0x1F, 0xD0);
}
break;
case CHIP_CARRIZO:
amdgpu_program_register_sequence(adev,