linux-kernel - [PATCH 3/3] platform/x86/intel/pmc/arl: Put GNA device in D3

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Date: Wed, 21 Feb 2024 13:12:03 -0800
From: "David E. Box" <david.e.box@...ux.intel.com>
To: david.e.box@...ux.intel.com,
	rajvi.jingar@...ux.intel.com,
	platform-driver-x86@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	hdegoede@...hat.com,
	ilpo.jarvinen@...ux.intel.com
Subject: [PATCH 3/3] platform/x86/intel/pmc/arl: Put GNA device in D3

To unblock Package C state entry, put the GNA device in D3 by default if no
driver is loaded for it.

Fixes: 83f168a1a437 ("platform/x86/intel/pmc: Add Arrow Lake S support to intel_pmc_core driver")
Signed-off-by: David E. Box <david.e.box@...ux.intel.com>
---
 drivers/platform/x86/intel/pmc/arl.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/platform/x86/intel/pmc/arl.c b/drivers/platform/x86/intel/pmc/arl.c
index 683ae828276b..34b4cd23bfe5 100644
--- a/drivers/platform/x86/intel/pmc/arl.c
+++ b/drivers/platform/x86/intel/pmc/arl.c
@@ -673,6 +673,7 @@ static struct pmc_info arl_pmc_info_list[] = {
 };
 
 #define ARL_NPU_PCI_DEV			0xad1d
+#define ARL_GNA_PCI_DEV			0xae4c
 /*
  * Set power state of select devices that do not have drivers to D3
  * so that they do not block Package C entry.
@@ -680,6 +681,7 @@ static struct pmc_info arl_pmc_info_list[] = {
 static void arl_d3_fixup(void)
 {
 	pmc_core_set_device_d3(ARL_NPU_PCI_DEV);
+	pmc_core_set_device_d3(ARL_GNA_PCI_DEV);
 }
 
 static int arl_resume(struct pmc_dev *pmcdev)
-- 
2.34.1