diff options
Diffstat (limited to 'drivers/platform')
| -rw-r--r-- | drivers/platform/x86/amd/pmc.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/platform/x86/amd/pmc.c b/drivers/platform/x86/amd/pmc.c index eb9fc6cb13e3..f237c1ea8d35 100644 --- a/drivers/platform/x86/amd/pmc.c +++ b/drivers/platform/x86/amd/pmc.c @@ -878,6 +878,11 @@ static int amd_pmc_s2d_init(struct amd_pmc_dev *dev) amd_pmc_send_cmd(dev, S2D_PHYS_ADDR_LOW, &phys_addr_low, STB_SPILL_TO_DRAM, 1); amd_pmc_send_cmd(dev, S2D_PHYS_ADDR_HIGH, &phys_addr_hi, STB_SPILL_TO_DRAM, 1); + if (!phys_addr_hi && !phys_addr_low) { + dev_err(dev->dev, "STB is not enabled on the system; disable enable_stb or contact system vendor\n"); + return -EINVAL; + } + stb_phys_addr = ((u64)phys_addr_hi << 32 | phys_addr_low); /* Clear msg_port for other SMU operation */ |