hwmon: (k10temp) Add support for temperature offsets (1b50b776) · Commits · 戴 / test

drivers/hwmon/k10temp.c

+30 −0

Original line number	Diff line number	Diff line
		@@ -71,6 +71,24 @@ static DEFINE_MUTEX(nb_smu_ind_mutex);
		struct k10temp_data {
		struct pci_dev *pdev;
		void (read_tempreg)(struct pci_dev pdev, u32 *regval);
		int temp_offset;
		};

		struct tctl_offset {
		u8 model;
		char const *id;
		int offset;
		};

		static const struct tctl_offset tctl_offset_table[] = {
		{ 0x17, "AMD Ryzen 7 1600X", 20000 },
		{ 0x17, "AMD Ryzen 7 1700X", 20000 },
		{ 0x17, "AMD Ryzen 7 1800X", 20000 },
		{ 0x17, "AMD Ryzen Threadripper 1950X", 27000 },
		{ 0x17, "AMD Ryzen Threadripper 1920X", 27000 },
		{ 0x17, "AMD Ryzen Threadripper 1950", 10000 },
		{ 0x17, "AMD Ryzen Threadripper 1920", 10000 },
		{ 0x17, "AMD Ryzen Threadripper 1910", 10000 },
		};

		static void read_tempreg_pci(struct pci_dev pdev, u32 regval)
		@@ -110,6 +128,7 @@ static ssize_t temp1_input_show(struct device *dev,

		data->read_tempreg(data->pdev, &regval);
		temp = (regval >> 21) * 125;
		temp -= data->temp_offset;

		return sprintf(buf, "%u\n", temp);
		}
		@@ -217,6 +236,7 @@ static int k10temp_probe(struct pci_dev *pdev,
		struct device *dev = &pdev->dev;
		struct k10temp_data *data;
		struct device *hwmon_dev;
		int i;

		if (unreliable) {
		if (!force) {
		@@ -242,6 +262,16 @@ static int k10temp_probe(struct pci_dev *pdev,
		else
		data->read_tempreg = read_tempreg_pci;

		for (i = 0; i < ARRAY_SIZE(tctl_offset_table); i++) {
		const struct tctl_offset *entry = &tctl_offset_table[i];

		if (boot_cpu_data.x86 == entry->model &&
		strstr(boot_cpu_data.x86_model_id, entry->id)) {
		data->temp_offset = entry->offset;
		break;
		}
		}

		hwmon_dev = devm_hwmon_device_register_with_groups(dev, "k10temp", data,
		k10temp_groups);
		return PTR_ERR_OR_ZERO(hwmon_dev);

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