hwmon: (k10temp) Add support for Zen5 Ryzen Desktop

darcari · darcari · commit 1a2722bfe313 · 2025-10-06T09:39:13.000-04:00
JIRA: https://issues.redhat.com/browse/RHEL-104300 commit 2c18396 Author: David Hows <david@hows.id.au> Date: Thu Apr 3 09:08:09 2025 +1100 hwmon: (k10temp) Add support for Zen5 Ryzen Desktop Add support for retrieving CCD temperatures on Zen5 (Granite Ridge) Desktop CPUs. Signed-off-by: David Hows <david@hows.id.au> Link: https://lore.kernel.org/r/Z-21SQkZpuWiWK06@archibald.hows.id.au Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: David Arcari <darcari@redhat.com>
diff --git a/drivers/hwmon/k10temp.c b/drivers/hwmon/k10temp.c
@@ -503,6 +503,13 @@ static int k10temp_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 			k10temp_get_ccd_support(data, 12);
 			break;
 		}
+	} else if (boot_cpu_data.x86 == 0x1a) {
+		switch (boot_cpu_data.x86_model) {
+		case 0x40 ... 0x4f:	/* Zen5 Ryzen Desktop */
+			data->ccd_offset = 0x308;
+			k10temp_get_ccd_support(data, 8);
+			break;
+		}
 	}
 
 	for (i = 0; i < ARRAY_SIZE(tctl_offset_table); i++) {

Original file line number	Diff line number	Diff line change
`@@ -503,6 +503,13 @@ static int k10temp_probe(struct pci_dev pdev, const struct pci_device_id id)`
`503`	`503`	`k10temp_get_ccd_support(data, 12);`
`504`	`504`	`break;`
`505`	`505`	`}`
	`506`	`+ } else if (boot_cpu_data.x86 == 0x1a) {`
	`507`	`+ switch (boot_cpu_data.x86_model) {`
	`508`	`+ case 0x40 ... 0x4f: /* Zen5 Ryzen Desktop */`
	`509`	`+ data->ccd_offset = 0x308;`
	`510`	`+ k10temp_get_ccd_support(data, 8);`
	`511`	`+ break;`
	`512`	`+ }`
`506`	`513`	`}`
`507`	`514`
`508`	`515`	`for (i = 0; i < ARRAY_SIZE(tctl_offset_table); i++) {`