[SRU][N:linux][PATCH 1/1] intel_idle: add Clearwater Forest SoC support

[Thibault Ferrante]

From: Artem Bityutskiy <artem.bityutskiy at linux.intel.com>

BugLink: https://bugs.launchpad.net/bugs/2144006

Clearwater Forest (CWF) SoC has the same C-states as Sierra Forest (SRF)
SoC.  Add CWF support by re-using the SRF C-states table.

Note: it is expected that CWF C-states will have same or very similar
characteristics as SRF C-states (latency and target residency).

However, there is a possibility that the characteristics will end up
being different enough when the CWF platform development is finished.
In that case, a separate CWF C-states table will be created and populated
with the CWF-specific characteristics (latency and target residency).

Signed-off-by: Artem Bityutskiy <artem.bityutskiy at linux.intel.com>
Link: https://patch.msgid.link/20241203130306.1559024-1-artem.bityutskiy@linux.intel.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki at intel.com>
(cherry picked from commit eeed4bfbe9b96214162a09a7fbb7570fa9522ca4)
Signed-off-by: Thibault Ferrante <thibault.ferrante at canonical.com>
---
 drivers/idle/intel_idle.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/idle/intel_idle.c b/drivers/idle/intel_idle.c
index 39bc53e9f008c..e1036b5a3ab06 100644
--- a/drivers/idle/intel_idle.c
+++ b/drivers/idle/intel_idle.c
@@ -1652,6 +1652,7 @@ static const struct x86_cpu_id intel_idle_ids[] __initconst = {
 	X86_MATCH_INTEL_FAM6_MODEL(ATOM_TREMONT_D,	&idle_cpu_snr),
 	X86_MATCH_INTEL_FAM6_MODEL(ATOM_CRESTMONT,	&idle_cpu_grr),
 	X86_MATCH_INTEL_FAM6_MODEL(ATOM_CRESTMONT_X,	&idle_cpu_srf),
+	X86_MATCH_INTEL_FAM6_MODEL(ATOM_DARKMONT_X,	&idle_cpu_srf),
 	{}
 };
 
-- 
2.51.0