* [PATCH v2] platform/x86/intel/pmc: Update NVLS PCDS LPM request GUID
@ 2026-07-22 21:52 Xi Pardee
0 siblings, 0 replies; only message in thread
From: Xi Pardee @ 2026-07-22 21:52 UTC (permalink / raw)
To: xi.pardee, irenic.rajneesh, david.e.box, ilpo.jarvinen,
platform-driver-x86, linux-kernel, linux-pm
The PMC SSRAM PMT telemetry GUID for Nova Lake S (NVLS) PCDS die
changed due to a firmware version bump. The GUID is used by the PMC
core driver to locate the correct PMT telemetry entry in SSRAM; if it
doesn't match the firmware-reported value, the driver fails to find the
LPM (Low Power Mode) data and cannot load properly.
Update PCDS_LPM_REQ_GUID from 0x01091102 to 0x01091103 to match the
new firmware version.
Signed-off-by: Xi Pardee <xi.pardee@linux.intel.com>
---
drivers/platform/x86/intel/pmc/nvl.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/platform/x86/intel/pmc/nvl.c b/drivers/platform/x86/intel/pmc/nvl.c
index 8dabf2511dd9d..1ed02332dbfce 100644
--- a/drivers/platform/x86/intel/pmc/nvl.c
+++ b/drivers/platform/x86/intel/pmc/nvl.c
@@ -14,7 +14,7 @@
/* PMC SSRAM PMT Telemetry GUIDS */
#define PCDH_LPM_REQ_GUID 0x01093101
#define PCHS_LPM_REQ_GUID 0x01092101
-#define PCDS_LPM_REQ_GUID 0x01091102
+#define PCDS_LPM_REQ_GUID 0x01091103
/*
* Die Mapping to Product.
--
2.43.0
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2026-07-22 21:52 [PATCH v2] platform/x86/intel/pmc: Update NVLS PCDS LPM request GUID Xi Pardee
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