cpufreq: intel_pstate: Add Tigerlake support in no-HWP mode

[ Upstream commit 71bb5c82aaaea007167f3ba68d3a669c74d7d55d ]

Users may disable HWP in firmware, in which case intel_pstate wouldn't load
unless the CPU model is explicitly supported.

Add TIGERLAKE to the list of CPUs that can register intel_pstate while not
advertising the HWP capability. Without this change, an TIGERLAKE in no-HWP
mode could only use the acpi_cpufreq frequency scaling driver.

See also commits:
d8de7a44e11f: cpufreq: intel_pstate: Add Skylake servers support
fbdc21e9b038: cpufreq: intel_pstate: Add Icelake servers support in no-HWP mode
706c5328851d: cpufreq: intel_pstate: Add Cometlake support in no-HWP mode

Reported by: M. Cargi Ari <cagriari@pm.me>
Signed-off-by: Doug Smythies <dsmythies@telus.net>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c
index 8a2c6b5..c57229c 100644 (file)
--- a/drivers/cpufreq/intel_pstate.c
+++ b/drivers/cpufreq/intel_pstate.c
@@ -2257,6 +2257,7 @@ static const struct x86_cpu_id intel_pstate_cpu_ids[] = {
        X86_MATCH(SKYLAKE_X,            core_funcs),
        X86_MATCH(COMETLAKE,            core_funcs),
        X86_MATCH(ICELAKE_X,            core_funcs),
+       X86_MATCH(TIGERLAKE,            core_funcs),
        {}
 };
 MODULE_DEVICE_TABLE(x86cpu, intel_pstate_cpu_ids);