amd_pmc_reg_read
val = amd_pmc_reg_read(pdev, AMD_PMC_SCRATCH_REG_CZN);
val = amd_pmc_reg_read(pdev, AMD_PMC_SCRATCH_REG_YC);
val = amd_pmc_reg_read(pdev, AMD_PMC_SCRATCH_REG_1AH);
value = amd_pmc_reg_read(dev, response);
value = amd_pmc_reg_read(dev, argument);
value = amd_pmc_reg_read(dev, message);
*data = amd_pmc_reg_read(dev, argument);