[PATCH] platform/x86/intel/tpmi/plr: Make the file domain<n>/status writeable

From: Ricardo Neri

Date: Tue Jan 27 2026 - 18:46:43 EST


The file sys/kernel/debug/tpmi-<n>/plr/domain<n>/status has store and show
callbacks. Make it writeable.

Fixes: 811f67c51636d ("platform/x86/intel/tpmi: Add new auxiliary driver for performance limits")
Signed-off-by: Ricardo Neri <ricardo.neri-calderon@xxxxxxxxxxxxxxx>
---
I tested this patch in Sierra Forest and Granite Rapids-D systems.

$ echo 0 > /sys/kernel/debug/tpmi-<n>/plr/domain<m>/status
$ cat /sys/kernel/debug/tpmi-<n>/plr/domain<m>/status
cpus none
cpu0 none
cpu1 none
...
---
drivers/platform/x86/intel/plr_tpmi.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/platform/x86/intel/plr_tpmi.c b/drivers/platform/x86/intel/plr_tpmi.c
index 58132da47745..05727169f49c 100644
--- a/drivers/platform/x86/intel/plr_tpmi.c
+++ b/drivers/platform/x86/intel/plr_tpmi.c
@@ -316,7 +316,7 @@ static int intel_plr_probe(struct auxiliary_device *auxdev, const struct auxilia
snprintf(name, sizeof(name), "domain%d", i);

dentry = debugfs_create_dir(name, plr->dbgfs_dir);
- debugfs_create_file("status", 0444, dentry, &plr->die_info[i],
+ debugfs_create_file("status", 0644, dentry, &plr->die_info[i],
&plr_status_fops);
}


---
base-commit: 63804fed149a6750ffd28610c5c1c98cce6bd377
change-id: 20260127-plr-debugfs-write-0f47092b3af2

Best regards,
--
Ricardo Neri <ricardo.neri-calderon@xxxxxxxxxxxxxxx>