diff mbox series

[v2,4/6] platform/x86/amd/pmc: Add idlemask support for 1Ah family

Message ID 20231228102104.1785383-5-Shyam-sundar.S-k@amd.com (mailing list archive)
State Accepted, archived
Headers show
Series platform/x86/amd/pmc: Updates to amd-pmc driver | expand

Commit Message

Shyam Sundar S K Dec. 28, 2023, 10:21 a.m. UTC 
Idlemask is an indication of each IP block current state (i.e. whether it
is running or idle) during s2idle transistion. The newer 1Ah family
supports this feature, add it to the support list.

Signed-off-by: Sanket Goswami <Sanket.Goswami@amd.com>
Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
---
 drivers/platform/x86/amd/pmc/pmc.c | 4 ++++
 1 file changed, 4 insertions(+)
diff mbox series

Patch

diff --git a/drivers/platform/x86/amd/pmc/pmc.c b/drivers/platform/x86/amd/pmc/pmc.c
index 6d6e5b9e56d8..60c95ba5a831 100644
--- a/drivers/platform/x86/amd/pmc/pmc.c
+++ b/drivers/platform/x86/amd/pmc/pmc.c
@@ -38,6 +38,7 @@ 
 /* PMC Scratch Registers */
 #define AMD_PMC_SCRATCH_REG_CZN		0x94
 #define AMD_PMC_SCRATCH_REG_YC		0xD14
+#define AMD_PMC_SCRATCH_REG_1AH		0xF14
 
 /* STB Registers */
 #define AMD_PMC_STB_PMI_0		0x03E30600
@@ -603,6 +604,9 @@  static int amd_pmc_idlemask_read(struct amd_pmc_dev *pdev, struct device *dev,
 	case AMD_CPU_ID_PS:
 		val = amd_pmc_reg_read(pdev, AMD_PMC_SCRATCH_REG_YC);
 		break;
+	case PCI_DEVICE_ID_AMD_1AH_M20H_ROOT:
+		val = amd_pmc_reg_read(pdev, AMD_PMC_SCRATCH_REG_1AH);
+		break;
 	default:
 		return -EINVAL;
 	}