diff options
Diffstat (limited to 'drivers/platform')
| -rw-r--r-- | drivers/platform/x86/intel_pmc_core.c | 14 | ||||
| -rw-r--r-- | drivers/platform/x86/intel_pmc_core.h | 2 |
2 files changed, 16 insertions, 0 deletions
diff --git a/drivers/platform/x86/intel_pmc_core.c b/drivers/platform/x86/intel_pmc_core.c index a255c4b0f7a8..43bbe74743d9 100644 --- a/drivers/platform/x86/intel_pmc_core.c +++ b/drivers/platform/x86/intel_pmc_core.c @@ -25,6 +25,7 @@ #include <linux/delay.h> #include <linux/io.h> #include <linux/module.h> +#include <linux/pci.h> #include <linux/uaccess.h> #include <asm/cpu_device_id.h> @@ -537,6 +538,11 @@ static const struct x86_cpu_id intel_pmc_core_ids[] = { MODULE_DEVICE_TABLE(x86cpu, intel_pmc_core_ids); +static const struct pci_device_id pmc_pci_ids[] = { + { PCI_VDEVICE(INTEL, SPT_PMC_PCI_DEVICE_ID), 0}, + { 0, }, +}; + static int __init pmc_core_probe(void) { struct pmc_dev *pmcdev = &pmc; @@ -550,6 +556,14 @@ static int __init pmc_core_probe(void) pmcdev->map = (struct pmc_reg_map *)cpu_id->driver_data; + /* + * Coffeelake has CPU ID of Kabylake and Cannonlake PCH. So here + * Sunrisepoint PCH regmap can't be used. Use Cannonlake PCH regmap + * in this case. + */ + if (!pci_dev_present(pmc_pci_ids)) + pmcdev->map = &cnp_reg_map; + if (lpit_read_residency_count_address(&slp_s0_addr)) pmcdev->base_addr = PMC_BASE_ADDR_DEFAULT; else diff --git a/drivers/platform/x86/intel_pmc_core.h b/drivers/platform/x86/intel_pmc_core.h index 8b7731e6dea2..5fa5f97870aa 100644 --- a/drivers/platform/x86/intel_pmc_core.h +++ b/drivers/platform/x86/intel_pmc_core.h @@ -23,6 +23,8 @@ #define PMC_BASE_ADDR_DEFAULT 0xFE000000 +/* Sunrise Point Power Management Controller PCI Device ID */ +#define SPT_PMC_PCI_DEVICE_ID 0x9d21 #define SPT_PMC_BASE_ADDR_OFFSET 0x48 #define SPT_PMC_SLP_S0_RES_COUNTER_OFFSET 0x13c #define SPT_PMC_PM_CFG_OFFSET 0x18 |