deepin: ACPI: CPPC: skip CPPC v2 check for hisi

If we have a buggy bios,and we have no bios update for it, we cannot acked CPPCv2. so the CPPC cpufreq driver will not probed in some case. example: Kunpeng 920 8 core Desktop Board Test result: cpu freq can from 200Mhz to 2.6Ghz. Log: cppc_acpi:acpi_cppc_processor_probe: ACPI CPPC: CPPC v2 _OSC not acked cppc_acpi:acpi_cppc_processor_probe: ACPI CPPC: CPPC v2 _OSC not acked cppc_acpi:acpi_cppc_processor_probe: ACPI CPPC: CPPC v2 _OSC not acked cppc_acpi:acpi_cppc_processor_probe: ACPI CPPC: CPPC v2 _OSC not acked cppc_acpi:acpi_cppc_processor_probe: ACPI CPPC: CPPC v2 _OSC not acked cppc_acpi:acpi_cppc_processor_probe: ACPI CPPC: CPPC v2 _OSC not acked cppc_acpi:acpi_cppc_processor_probe: ACPI CPPC: CPPC v2 _OSC not acked cppc_acpi:acpi_cppc_processor_probe: ACPI CPPC: CPPC v2 _OSC not acked
deepin-community · Sep 6, 2024 · fcb93a6 · fcb93a6
1 parent cab4dcc
commit fcb93a6
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/drivers/acpi/cppc_acpi.c b/drivers/acpi/cppc_acpi.c
@@ -681,7 +681,7 @@ int acpi_cppc_processor_probe(struct acpi_processor *pr)
 	acpi_status status;
 	int ret = -ENODATA;
 
-	if (!osc_sb_cppc2_support_acked) {
+	if (read_cpuid_implementor() != ARM_CPU_IMP_HISI && !osc_sb_cppc2_support_acked) {
 		pr_debug("CPPC v2 _OSC not acked\n");
 		if (!cpc_supported_by_cpu())
 			return -ENODEV;