Cmnt: [SRU][N:linux][PATCH 0/1] intel_idle: add Clearwater Forest SoC support

[Tim Whisonant]

On Fri, Mar 13, 2026 at 05:11:29PM +0100, Thibault Ferrante wrote:
> BugLink: https://bugs.launchpad.net/bugs/2144006
> 
> [ Impact ]
> 
>  * Improve management of C-states in Clearwater Forest hardware.
> 
> [ Fix ]
> 
>  * Cherry-pick from upstream: eeed4bfbe9b intel_idle: add Clearwater Forest SoC support
> This is a single line change as it's reusing the Sierra Forest C-states table.
> 
> 
> [ Test Plan ]
> 
>  * Built and boot tested
> 
> [ Where problems could occur ]
> 
>  * Regression in performance in Clearwater Forest.
> 
> Artem Bityutskiy (1):
>   intel_idle: add Clearwater Forest SoC support
> 
>  drivers/idle/intel_idle.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> -- 
> 2.51.0
> 
> 

Hi Thibault,
I had a quick question. The patch says that it was cherry-picked from
eeed4bfbe9b96214162a09a7fbb7570fa9522ca4, but looking at that patch
upstream, it has a different signature:

diff --git a/drivers/idle/intel_idle.c b/drivers/idle/intel_idle.c
index ac4d8faa3886..23d0cd27a581 100644
--- a/drivers/idle/intel_idle.c
+++ b/drivers/idle/intel_idle.c
@@ -1651,6 +1651,7 @@ static const struct x86_cpu_id intel_idle_ids[] __initconst = {
        X86_MATCH_VFM(INTEL_ATOM_TREMONT_D,     &idle_cpu_snr),
        X86_MATCH_VFM(INTEL_ATOM_CRESTMONT,     &idle_cpu_grr),
        X86_MATCH_VFM(INTEL_ATOM_CRESTMONT_X,   &idle_cpu_srf),
+       X86_MATCH_VFM(INTEL_ATOM_DARKMONT_X,    &idle_cpu_srf),
        {}
 };

I think I may be missing something.

Tim