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thermal: intel: int340x: Add DLVR support for Nova Lake 

Add support for DLVR (Digital Linear Voltage Regulator) for Nova Lake.

There are no new sysfs attributes or difference in operations compared
to prior generations.

MMIO offset and bit positions are changed. Also no mapping is required
as units are already in MHz.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Link: https://patch.msgid.link/20251111004552.137984-2-srinivas.pandruvada@linux.intel.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Srinivas Pandruvada 2025-11-10 16:45:51 -08:00 committed by Rafael J. Wysocki
parent af1b80b941
commit dbd911a07f
1 changed files with 15 additions and 0 deletions
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15
drivers/thermal/intel/int340x_thermal/processor_thermal_rfim.c
View File

@ -87,6 +87,17 @@ static const struct mapping_table lnl_dlvr_mapping[] = {
{NULL, 0, NULL},
};
static const struct mmio_reg nvl_dlvr_mmio_regs[] = {
{ 0, 0x19208, 5, 0x1F, 0}, /* dlvr_spread_spectrum_pct */
{ 0, 0x19208, 1, 0x1, 5}, /* dlvr_control_mode */
{ 0, 0x19208, 1, 0x1, 6}, /* dlvr_control_lock */
{ 0, 0x19208, 1, 0x1, 7}, /* dlvr_rfim_enable */
{ 0, 0x19208, 12, 0xFFF, 8}, /* dlvr_freq_select */
{ 1, 0x19210, 2, 0x3, 30}, /* dlvr_hardware_rev */
{ 1, 0x19210, 16, 0xFFFF, 0}, /* dlvr_freq_mhz */
{ 1, 0x19210, 1, 0x1, 16}, /* dlvr_pll_busy */
};
static int match_mapping_table(const struct mapping_table *table, const char *attr_name,
bool match_int_value, const u32 value, const char *value_str,
char **result_str, u32 *result_int)
@ -446,6 +457,10 @@ int proc_thermal_rfim_add(struct pci_dev *pdev, struct proc_thermal_device *proc
dlvr_mmio_regs_table = lnl_dlvr_mmio_regs;
dlvr_mapping = lnl_dlvr_mapping;
break;
case PCI_DEVICE_ID_INTEL_NVL_H_THERMAL:
case PCI_DEVICE_ID_INTEL_NVL_S_THERMAL:
dlvr_mmio_regs_table = nvl_dlvr_mmio_regs;
break;
default:
dlvr_mmio_regs_table = dlvr_mmio_regs;
break;