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drm/amdgpu: Access the FRU on Aldebaran 

This is supported, although the offset is different from VG20, so fix
that with a variable and enable getting the product name and serial
number from the FRU. Do this for all SKUs since all SKUs have the FRU

Signed-off-by: Kent Russell <kent.russell@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Kent Russell 2021-12-13 13:59:43 -05:00 committed by Alex Deucher
parent de0af8a65e
commit 67416bf853
1 changed files with 10 additions and 3 deletions
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13
drivers/gpu/drm/amd/amdgpu/amdgpu_fru_eeprom.c
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@ -56,6 +56,9 @@ static bool is_fru_eeprom_supported(struct amdgpu_device *adev)
return true;
else
return false;
case CHIP_ALDEBARAN:
/* All Aldebaran SKUs have the FRU */
return true;
default:
return false;
}
@ -91,10 +94,14 @@ int amdgpu_fru_get_product_info(struct amdgpu_device *adev)
unsigned char buff[AMDGPU_PRODUCT_NAME_LEN+2];
u32 addrptr;
int size, len;
int offset = 2;
if (!is_fru_eeprom_supported(adev))
return 0;
if (adev->asic_type == CHIP_ALDEBARAN)
offset = 0;
/* If algo exists, it means that the i2c_adapter's initialized */
if (!adev->pm.smu_i2c.algo) {
DRM_WARN("Cannot access FRU, EEPROM accessor not initialized");
@ -137,7 +144,7 @@ int amdgpu_fru_get_product_info(struct amdgpu_device *adev)
len = AMDGPU_PRODUCT_NAME_LEN - 1;
}
/* Start at 2 due to buff using fields 0 and 1 for the address */
memcpy(adev->product_name, &buff[2], len);
memcpy(adev->product_name, &buff[offset], len);
adev->product_name[len] = '\0';
addrptr += size + 1;
@ -155,7 +162,7 @@ int amdgpu_fru_get_product_info(struct amdgpu_device *adev)
DRM_WARN("FRU Product Number is larger than 16 characters. This is likely a mistake");
len = sizeof(adev->product_number) - 1;
}
memcpy(adev->product_number, &buff[2], len);
memcpy(adev->product_number, &buff[offset], len);
adev->product_number[len] = '\0';
addrptr += size + 1;
@ -182,7 +189,7 @@ int amdgpu_fru_get_product_info(struct amdgpu_device *adev)
DRM_WARN("FRU Serial Number is larger than 16 characters. This is likely a mistake");
len = sizeof(adev->serial) - 1;
}
memcpy(adev->serial, &buff[2], len);
memcpy(adev->serial, &buff[offset], len);
adev->serial[len] = '\0';
return 0;