summaryrefslogtreecommitdiff
path: root/drivers/cpufreq/amd_freq_sensitivity.c
diff options
context:
space:
mode:
authorPu Wen <puwen@hygon.cn>2018-09-23 12:37:38 +0300
committerBorislav Petkov <bp@suse.de>2018-09-27 19:29:00 +0300
commitcc9690cfc7a36873b219d569049e10f073dd22e4 (patch)
tree88f3428217e409d096e136087437d8c3ec0c636a /drivers/cpufreq/amd_freq_sensitivity.c
parent7377ed4bd56e6cc1ddbb63f03626fc5b92d3d6fe (diff)
downloadlinux-cc9690cfc7a36873b219d569049e10f073dd22e4.tar.xz
cpufreq: Add Hygon Dhyana support
The Hygon Dhyana CPU supports ACPI P-States, and there is SMBus device (PCI device ID 0x790b) on the Hygon platform. Add Hygon Dhyana support to the cpufreq driver by using the code path of AMD family 17h. Signed-off-by: Pu Wen <puwen@hygon.cn> Signed-off-by: Borislav Petkov <bp@suse.de> Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Cc: rjw@rjwysocki.net Cc: viresh.kumar@linaro.org Cc: bp@alien8.de Cc: tglx@linutronix.de Cc: mingo@redhat.com Cc: hpa@zytor.com Cc: x86@kernel.org Cc: thomas.lendacky@amd.com Cc: rafael@kernel.org Cc: linux-pm@vger.kernel.org Link: https://lkml.kernel.org/r/4db6f0f8537a93c172430c446a0297a6ab1c3c2d.1537533369.git.puwen@hygon.cn
Diffstat (limited to 'drivers/cpufreq/amd_freq_sensitivity.c')
-rw-r--r--drivers/cpufreq/amd_freq_sensitivity.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/cpufreq/amd_freq_sensitivity.c b/drivers/cpufreq/amd_freq_sensitivity.c
index be926d9a66e5..4ac7c3cf34be 100644
--- a/drivers/cpufreq/amd_freq_sensitivity.c
+++ b/drivers/cpufreq/amd_freq_sensitivity.c
@@ -111,11 +111,16 @@ static int __init amd_freq_sensitivity_init(void)
{
u64 val;
struct pci_dev *pcidev;
+ unsigned int pci_vendor;
- if (boot_cpu_data.x86_vendor != X86_VENDOR_AMD)
+ if (boot_cpu_data.x86_vendor == X86_VENDOR_AMD)
+ pci_vendor = PCI_VENDOR_ID_AMD;
+ else if (boot_cpu_data.x86_vendor == X86_VENDOR_HYGON)
+ pci_vendor = PCI_VENDOR_ID_HYGON;
+ else
return -ENODEV;
- pcidev = pci_get_device(PCI_VENDOR_ID_AMD,
+ pcidev = pci_get_device(pci_vendor,
PCI_DEVICE_ID_AMD_KERNCZ_SMBUS, NULL);
if (!pcidev) {