PSC platform profile mode is only supported on Linux for AMD platforms. Some older Intel platforms (e.g T490) are advertising it's capability as Windows uses it - but on Linux we should only be using MMC profile for Intel systems. Add a check to prevent it being enabled incorrectly.
Unified · Split
| @@ -10541,6 +10541,11 @@ static int tpacpi_dytc_profile_init(struct ibm_init_struct *iibm) · 10540 unmodified lines | ||
| 10541 | 10541 | dytc_mmc_get_available = true; |
| 10542 | 10542 | } |
| 10543 | 10543 | } else if (dytc_capabilities & BIT(DYTC_FC_PSC)) { /* PSC MODE */ |
| 10544 | + /* Support for this only works on AMD platforms */ | |
| 10545 | + if (boot_cpu_data.x86_vendor != X86_VENDOR_AMD) { | |
| 10546 | + dbg_printk(TPACPI_DBG_INIT, "PSC not support on Intel platforms\n"); | |
| 10547 | + return -ENODEV; | |
| 10548 | + } | |
| 10544 | 10549 | pr_debug("PSC is supported\n"); |
| 10545 | 10550 | } else { |
| 10546 | 10551 | dbg_printk(TPACPI_DBG_INIT, "No DYTC support available\n"); |