linux-kernel - [PATCH 3/6] platform/x86:intel/pmc: Add DMU GUID to Arrow Lake U/H

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Message-ID: <20251014214548.629023-4-xi.pardee@linux.intel.com>
Date: Tue, 14 Oct 2025 14:45:31 -0700
From: Xi Pardee <xi.pardee@...ux.intel.com>
To: xi.pardee@...ux.intel.com,
	irenic.rajneesh@...il.com,
	david.e.box@...ux.intel.com,
	hdegoede@...hat.com,
	ilpo.jarvinen@...ux.intel.com,
	platform-driver-x86@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-pm@...r.kernel.org
Subject: [PATCH 3/6] platform/x86:intel/pmc: Add DMU GUID to Arrow Lake U/H

Arrow Lake U/H platforms may have multiple GUIDs pointing to the
same telemetry region. Add the second possible GUID to the GUID
list to support the Arrow Lake U/H platforms with this GUID.

Signed-off-by: Xi Pardee <xi.pardee@...ux.intel.com>
---
 drivers/platform/x86/intel/pmc/arl.c  | 2 +-
 drivers/platform/x86/intel/pmc/core.h | 1 +
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/platform/x86/intel/pmc/arl.c b/drivers/platform/x86/intel/pmc/arl.c
index cc05a168c3721..c0698ef35df89 100644
--- a/drivers/platform/x86/intel/pmc/arl.c
+++ b/drivers/platform/x86/intel/pmc/arl.c
@@ -733,7 +733,7 @@ struct pmc_dev_info arl_pmc_dev = {
 	.sub_req = pmc_core_pmt_get_lpm_req,
 };
 
-static u32 ARL_H_PMT_DMU_GUIDS[] = {ARL_PMT_DMU_GUID, 0x0};
+static u32 ARL_H_PMT_DMU_GUIDS[] = {ARL_PMT_DMU_GUID, ARL_H_PMT_DMU_GUID, 0x0};
 struct pmc_dev_info arl_h_pmc_dev = {
 	.pci_func = 2,
 	.dmu_guids = ARL_H_PMT_DMU_GUIDS,
diff --git a/drivers/platform/x86/intel/pmc/core.h b/drivers/platform/x86/intel/pmc/core.h
index 83d6e2e833785..d80257b37ca98 100644
--- a/drivers/platform/x86/intel/pmc/core.h
+++ b/drivers/platform/x86/intel/pmc/core.h
@@ -283,6 +283,7 @@ enum ppfear_regs {
 #define MTL_PMT_DMU_DIE_C6_OFFSET		15
 #define MTL_PMT_DMU_GUID			0x1A067102
 #define ARL_PMT_DMU_GUID			0x1A06A102
+#define ARL_H_PMT_DMU_GUID			0x1A06A101
 
 #define LNL_PMC_MMIO_REG_LEN			0x2708
 #define LNL_PMC_LTR_OSSE			0x1B88
-- 
2.43.0