Adding upstream version 6.6.15.upstream/6.6.15

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

5 files changed, 554 insertions, 0 deletions

diff --git a/drivers/acpi/dptf/Kconfig b/drivers/acpi/dptf/Kconfig
new file mode 100644
index 0000000000..4b3fdc03e4
--- /dev/null
+++ b/drivers/acpi/dptf/Kconfig
@@ -0,0 +1,46 @@
+# SPDX-License-Identifier: GPL-2.0
+
+menuconfig ACPI_DPTF
+	bool "Intel DPTF (Dynamic Platform and Thermal Framework) Support"
+	depends on X86
+	help
+	  Intel Dynamic Platform and Thermal Framework (DPTF) is a platform
+	  level hardware/software solution for power and thermal management.
+
+	  As a container for multiple power/thermal technologies, DPTF provides
+	  a coordinated approach for different policies to effect the hardware
+	  state of a system.
+
+if ACPI_DPTF
+
+config DPTF_POWER
+	tristate "Platform Power DPTF Participant"
+	default m
+	help
+	  This driver adds support for Dynamic Platform and Thermal Framework
+	  (DPTF) Platform Power Participant device (INT3407) support.
+	  This participant is responsible for exposing platform telemetry:
+		max_platform_power
+		platform_power_source
+		adapter_rating
+		battery_steady_power
+		charger_type
+
+	  To compile this driver as a module, choose M here:
+	  the module will be called dptf_power.
+
+config DPTF_PCH_FIVR
+	tristate "PCH FIVR DPTF Participant"
+	default m
+	help
+	  This driver adds support for Dynamic Platform and Thermal Framework
+	  (DPTF) PCH FIVR Participant device support. This driver allows to
+	  switch the PCH FIVR (Fully Integrated Voltage Regulator) frequency.
+	  This participant is responsible for exposing:
+		freq_mhz_low_clock
+		freq_mhz_high_clock
+
+	  To compile this driver as a module, choose M here:
+	  the module will be called dptf_pch_fivr.
+
+endif
diff --git a/drivers/acpi/dptf/Makefile b/drivers/acpi/dptf/Makefile
new file mode 100644
index 0000000000..297340682f
--- /dev/null
+++ b/drivers/acpi/dptf/Makefile
@@ -0,0 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0-only
+obj-$(CONFIG_ACPI)             += int340x_thermal.o
+obj-$(CONFIG_DPTF_POWER)	+= dptf_power.o
+obj-$(CONFIG_DPTF_PCH_FIVR)	+= dptf_pch_fivr.o
diff --git a/drivers/acpi/dptf/dptf_pch_fivr.c b/drivers/acpi/dptf/dptf_pch_fivr.c
new file mode 100644
index 0000000000..4919e7abe9
--- /dev/null
+++ b/drivers/acpi/dptf/dptf_pch_fivr.c
@@ -0,0 +1,173 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * dptf_pch_fivr:  DPTF PCH FIVR Participant driver
+ * Copyright (c) 2020, Intel Corporation.
+ */
+
+#include <linux/acpi.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+
+struct pch_fivr_resp {
+	u64 status;
+	u64 result;
+};
+
+static int pch_fivr_read(acpi_handle handle, char *method, struct pch_fivr_resp *fivr_resp)
+{
+	struct acpi_buffer resp = { sizeof(struct pch_fivr_resp), fivr_resp};
+	struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
+	struct acpi_buffer format = { sizeof("NN"), "NN" };
+	union acpi_object *obj;
+	acpi_status status;
+	int ret = -EFAULT;
+
+	status = acpi_evaluate_object(handle, method, NULL, &buffer);
+	if (ACPI_FAILURE(status))
+		return ret;
+
+	obj = buffer.pointer;
+	if (!obj || obj->type != ACPI_TYPE_PACKAGE)
+		goto release_buffer;
+
+	status = acpi_extract_package(obj, &format, &resp);
+	if (ACPI_FAILURE(status))
+		goto release_buffer;
+
+	if (fivr_resp->status)
+		goto release_buffer;
+
+	ret = 0;
+
+release_buffer:
+	kfree(buffer.pointer);
+	return ret;
+}
+
+/*
+ * Presentation of attributes which are defined for INTC10xx
+ * They are:
+ * freq_mhz_low_clock : Set PCH FIVR switching freq for
+ *			FIVR clock 19.2MHz and 24MHz
+ * freq_mhz_high_clock : Set PCH FIVR switching freq for
+ *			FIVR clock 38.4MHz
+ */
+#define PCH_FIVR_SHOW(name, method) \
+static ssize_t name##_show(struct device *dev,\
+			   struct device_attribute *attr,\
+			   char *buf)\
+{\
+	struct acpi_device *acpi_dev = dev_get_drvdata(dev);\
+	struct pch_fivr_resp fivr_resp;\
+	int status;\
+\
+	status = pch_fivr_read(acpi_dev->handle, #method, &fivr_resp);\
+	if (status)\
+		return status;\
+\
+	return sprintf(buf, "%llu\n", fivr_resp.result);\
+}
+
+#define PCH_FIVR_STORE(name, method) \
+static ssize_t name##_store(struct device *dev,\
+			    struct device_attribute *attr,\
+			    const char *buf, size_t count)\
+{\
+	struct acpi_device *acpi_dev = dev_get_drvdata(dev);\
+	acpi_status status;\
+	u32 val;\
+\
+	if (kstrtouint(buf, 0, &val) < 0)\
+		return -EINVAL;\
+\
+	status = acpi_execute_simple_method(acpi_dev->handle, #method, val);\
+	if (ACPI_SUCCESS(status))\
+		return count;\
+\
+	return -EINVAL;\
+}
+
+PCH_FIVR_SHOW(freq_mhz_low_clock, GFC0)
+PCH_FIVR_SHOW(freq_mhz_high_clock, GFC1)
+PCH_FIVR_SHOW(ssc_clock_info, GEMI)
+PCH_FIVR_SHOW(fivr_switching_freq_mhz, GFCS)
+PCH_FIVR_SHOW(fivr_switching_fault_status, GFFS)
+PCH_FIVR_STORE(freq_mhz_low_clock, RFC0)
+PCH_FIVR_STORE(freq_mhz_high_clock, RFC1)
+
+static DEVICE_ATTR_RW(freq_mhz_low_clock);
+static DEVICE_ATTR_RW(freq_mhz_high_clock);
+static DEVICE_ATTR_RO(ssc_clock_info);
+static DEVICE_ATTR_RO(fivr_switching_freq_mhz);
+static DEVICE_ATTR_RO(fivr_switching_fault_status);
+
+static struct attribute *fivr_attrs[] = {
+	&dev_attr_freq_mhz_low_clock.attr,
+	&dev_attr_freq_mhz_high_clock.attr,
+	&dev_attr_ssc_clock_info.attr,
+	&dev_attr_fivr_switching_freq_mhz.attr,
+	&dev_attr_fivr_switching_fault_status.attr,
+	NULL
+};
+
+static const struct attribute_group pch_fivr_attribute_group = {
+	.attrs = fivr_attrs,
+	.name = "pch_fivr_switch_frequency"
+};
+
+static int pch_fivr_add(struct platform_device *pdev)
+{
+	struct acpi_device *acpi_dev;
+	unsigned long long ptype;
+	acpi_status status;
+	int result;
+
+	acpi_dev = ACPI_COMPANION(&(pdev->dev));
+	if (!acpi_dev)
+		return -ENODEV;
+
+	status = acpi_evaluate_integer(acpi_dev->handle, "PTYP", NULL, &ptype);
+	if (ACPI_FAILURE(status) || ptype != 0x05)
+		return -ENODEV;
+
+	result = sysfs_create_group(&pdev->dev.kobj,
+				    &pch_fivr_attribute_group);
+	if (result)
+		return result;
+
+	platform_set_drvdata(pdev, acpi_dev);
+
+	return 0;
+}
+
+static int pch_fivr_remove(struct platform_device *pdev)
+{
+	sysfs_remove_group(&pdev->dev.kobj, &pch_fivr_attribute_group);
+
+	return 0;
+}
+
+static const struct acpi_device_id pch_fivr_device_ids[] = {
+	{"INTC1045", 0},
+	{"INTC1049", 0},
+	{"INTC1064", 0},
+	{"INTC10A3", 0},
+	{"", 0},
+};
+MODULE_DEVICE_TABLE(acpi, pch_fivr_device_ids);
+
+static struct platform_driver pch_fivr_driver = {
+	.probe = pch_fivr_add,
+	.remove = pch_fivr_remove,
+	.driver = {
+		.name = "dptf_pch_fivr",
+		.acpi_match_table = pch_fivr_device_ids,
+	},
+};
+
+module_platform_driver(pch_fivr_driver);
+
+MODULE_AUTHOR("Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>");
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("ACPI DPTF PCH FIVR driver");
diff --git a/drivers/acpi/dptf/dptf_power.c b/drivers/acpi/dptf/dptf_power.c
new file mode 100644
index 0000000000..86561eda93
--- /dev/null
+++ b/drivers/acpi/dptf/dptf_power.c
@@ -0,0 +1,256 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * dptf_power:  DPTF platform power driver
+ * Copyright (c) 2016, Intel Corporation.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/acpi.h>
+#include <linux/platform_device.h>
+
+/*
+ * Presentation of attributes which are defined for INT3407 and INT3532.
+ * They are:
+ * PMAX : Maximum platform power
+ * PSRC : Platform power source
+ * ARTG : Adapter rating
+ * CTYP : Charger type
+ * PROP : Rest of worst case platform Power
+ * PBSS : Power Battery Steady State
+ * RBHF : High Frequency Impedance
+ * VBNL : Instantaneous No-Load Voltage
+ * CMPP : Current Discharge Capability
+ */
+#define DPTF_POWER_SHOW(name, object) \
+static ssize_t name##_show(struct device *dev,\
+			   struct device_attribute *attr,\
+			   char *buf)\
+{\
+	struct acpi_device *acpi_dev = dev_get_drvdata(dev);\
+	unsigned long long val;\
+	acpi_status status;\
+\
+	status = acpi_evaluate_integer(acpi_dev->handle, #object,\
+				       NULL, &val);\
+	if (ACPI_SUCCESS(status))\
+		return sprintf(buf, "%d\n", (int)val);\
+	else \
+		return -EINVAL;\
+}
+
+DPTF_POWER_SHOW(max_platform_power_mw, PMAX)
+DPTF_POWER_SHOW(platform_power_source, PSRC)
+DPTF_POWER_SHOW(adapter_rating_mw, ARTG)
+DPTF_POWER_SHOW(battery_steady_power_mw, PBSS)
+DPTF_POWER_SHOW(charger_type, CTYP)
+DPTF_POWER_SHOW(rest_of_platform_power_mw, PROP)
+DPTF_POWER_SHOW(max_steady_state_power_mw, PBSS)
+DPTF_POWER_SHOW(high_freq_impedance_mohm, RBHF)
+DPTF_POWER_SHOW(no_load_voltage_mv, VBNL)
+DPTF_POWER_SHOW(current_discharge_capbility_ma, CMPP);
+
+static DEVICE_ATTR_RO(max_platform_power_mw);
+static DEVICE_ATTR_RO(platform_power_source);
+static DEVICE_ATTR_RO(adapter_rating_mw);
+static DEVICE_ATTR_RO(battery_steady_power_mw);
+static DEVICE_ATTR_RO(charger_type);
+static DEVICE_ATTR_RO(rest_of_platform_power_mw);
+static DEVICE_ATTR_RO(max_steady_state_power_mw);
+static DEVICE_ATTR_RO(high_freq_impedance_mohm);
+static DEVICE_ATTR_RO(no_load_voltage_mv);
+static DEVICE_ATTR_RO(current_discharge_capbility_ma);
+
+static ssize_t prochot_confirm_store(struct device *dev,
+				     struct device_attribute *attr,
+				     const char *buf, size_t count)
+{
+	struct acpi_device *acpi_dev = dev_get_drvdata(dev);
+	acpi_status status;
+	int seq_no;
+
+	if (kstrtouint(buf, 0, &seq_no) < 0)
+		return -EINVAL;
+
+	status = acpi_execute_simple_method(acpi_dev->handle, "PBOK", seq_no);
+	if (ACPI_SUCCESS(status))
+		return count;
+
+	return -EINVAL;
+}
+
+static DEVICE_ATTR_WO(prochot_confirm);
+
+static struct attribute *dptf_power_attrs[] = {
+	&dev_attr_max_platform_power_mw.attr,
+	&dev_attr_platform_power_source.attr,
+	&dev_attr_adapter_rating_mw.attr,
+	&dev_attr_battery_steady_power_mw.attr,
+	&dev_attr_charger_type.attr,
+	&dev_attr_rest_of_platform_power_mw.attr,
+	&dev_attr_prochot_confirm.attr,
+	NULL
+};
+
+static const struct attribute_group dptf_power_attribute_group = {
+	.attrs = dptf_power_attrs,
+	.name = "dptf_power"
+};
+
+static struct attribute *dptf_battery_attrs[] = {
+	&dev_attr_max_platform_power_mw.attr,
+	&dev_attr_max_steady_state_power_mw.attr,
+	&dev_attr_high_freq_impedance_mohm.attr,
+	&dev_attr_no_load_voltage_mv.attr,
+	&dev_attr_current_discharge_capbility_ma.attr,
+	NULL
+};
+
+static const struct attribute_group dptf_battery_attribute_group = {
+	.attrs = dptf_battery_attrs,
+	.name = "dptf_battery"
+};
+
+#define MAX_POWER_CHANGED		0x80
+#define POWER_STATE_CHANGED		0x81
+#define STEADY_STATE_POWER_CHANGED	0x83
+#define POWER_PROP_CHANGE_EVENT	0x84
+#define IMPEDANCE_CHANGED		0x85
+#define VOLTAGE_CURRENT_CHANGED	0x86
+
+static long long dptf_participant_type(acpi_handle handle)
+{
+	unsigned long long ptype;
+	acpi_status status;
+
+	status = acpi_evaluate_integer(handle, "PTYP", NULL, &ptype);
+	if (ACPI_FAILURE(status))
+		return -ENODEV;
+
+	return ptype;
+}
+
+static void dptf_power_notify(acpi_handle handle, u32 event, void *data)
+{
+	struct platform_device *pdev = data;
+	char *attr;
+
+	switch (event) {
+	case POWER_STATE_CHANGED:
+		attr = "platform_power_source";
+		break;
+	case POWER_PROP_CHANGE_EVENT:
+		attr = "rest_of_platform_power_mw";
+		break;
+	case MAX_POWER_CHANGED:
+		attr = "max_platform_power_mw";
+		break;
+	case STEADY_STATE_POWER_CHANGED:
+		attr = "max_steady_state_power_mw";
+		break;
+	case IMPEDANCE_CHANGED:
+		attr = "high_freq_impedance_mohm";
+		break;
+	case VOLTAGE_CURRENT_CHANGED:
+		attr = "no_load_voltage_mv";
+		break;
+	default:
+		dev_err(&pdev->dev, "Unsupported event [0x%x]\n", event);
+		return;
+	}
+
+	/*
+	 * Notify that an attribute is changed, so that user space can read
+	 * again.
+	 */
+	if (dptf_participant_type(handle) == 0x0CULL)
+		sysfs_notify(&pdev->dev.kobj, "dptf_battery", attr);
+	else
+		sysfs_notify(&pdev->dev.kobj, "dptf_power", attr);
+}
+
+static int dptf_power_add(struct platform_device *pdev)
+{
+	const struct attribute_group *attr_group;
+	struct acpi_device *acpi_dev;
+	unsigned long long ptype;
+	int result;
+
+	acpi_dev = ACPI_COMPANION(&(pdev->dev));
+	if (!acpi_dev)
+		return -ENODEV;
+
+	ptype = dptf_participant_type(acpi_dev->handle);
+	if (ptype == 0x11)
+		attr_group = &dptf_power_attribute_group;
+	else if (ptype == 0x0C)
+		attr_group = &dptf_battery_attribute_group;
+	else
+		return -ENODEV;
+
+	result = acpi_install_notify_handler(acpi_dev->handle,
+					     ACPI_DEVICE_NOTIFY,
+					     dptf_power_notify,
+					     (void *)pdev);
+	if (result)
+		return result;
+
+	result = sysfs_create_group(&pdev->dev.kobj,
+				    attr_group);
+	if (result) {
+		acpi_remove_notify_handler(acpi_dev->handle,
+					   ACPI_DEVICE_NOTIFY,
+					   dptf_power_notify);
+		return result;
+	}
+
+	platform_set_drvdata(pdev, acpi_dev);
+
+	return 0;
+}
+
+static int dptf_power_remove(struct platform_device *pdev)
+{
+	struct acpi_device *acpi_dev = platform_get_drvdata(pdev);
+
+	acpi_remove_notify_handler(acpi_dev->handle,
+				   ACPI_DEVICE_NOTIFY,
+				   dptf_power_notify);
+
+	if (dptf_participant_type(acpi_dev->handle) == 0x0CULL)
+		sysfs_remove_group(&pdev->dev.kobj, &dptf_battery_attribute_group);
+	else
+		sysfs_remove_group(&pdev->dev.kobj, &dptf_power_attribute_group);
+
+	return 0;
+}
+
+static const struct acpi_device_id int3407_device_ids[] = {
+	{"INT3407", 0},
+	{"INT3532", 0},
+	{"INTC1047", 0},
+	{"INTC1050", 0},
+	{"INTC1060", 0},
+	{"INTC1061", 0},
+	{"INTC1065", 0},
+	{"INTC1066", 0},
+	{"INTC10A4", 0},
+	{"INTC10A5", 0},
+	{"", 0},
+};
+MODULE_DEVICE_TABLE(acpi, int3407_device_ids);
+
+static struct platform_driver dptf_power_driver = {
+	.probe = dptf_power_add,
+	.remove = dptf_power_remove,
+	.driver = {
+		.name = "dptf_power",
+		.acpi_match_table = int3407_device_ids,
+	},
+};
+
+module_platform_driver(dptf_power_driver);
+
+MODULE_AUTHOR("Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>");
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("ACPI DPTF platform power driver");
diff --git a/drivers/acpi/dptf/int340x_thermal.c b/drivers/acpi/dptf/int340x_thermal.c
new file mode 100644
index 0000000000..b7113fa92f
--- /dev/null
+++ b/drivers/acpi/dptf/int340x_thermal.c
@@ -0,0 +1,75 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * ACPI support for int340x thermal drivers
+ *
+ * Copyright (C) 2014, Intel Corporation
+ * Authors: Zhang Rui <rui.zhang@intel.com>
+ */
+
+#include <linux/acpi.h>
+#include <linux/module.h>
+
+#include "../internal.h"
+
+#define INT3401_DEVICE 0X01
+static const struct acpi_device_id int340x_thermal_device_ids[] = {
+	{"INT3400"},
+	{"INT3401", INT3401_DEVICE},
+	{"INT3402"},
+	{"INT3403"},
+	{"INT3404"},
+	{"INT3406"},
+	{"INT3407"},
+	{"INT3408"},
+	{"INT3409"},
+	{"INT340A"},
+	{"INT340B"},
+	{"INT3532"},
+	{"INTC1040"},
+	{"INTC1041"},
+	{"INTC1042"},
+	{"INTC1043"},
+	{"INTC1044"},
+	{"INTC1045"},
+	{"INTC1046"},
+	{"INTC1047"},
+	{"INTC1048"},
+	{"INTC1049"},
+	{"INTC1050"},
+	{"INTC1060"},
+	{"INTC1061"},
+	{"INTC1062"},
+	{"INTC1063"},
+	{"INTC1064"},
+	{"INTC1065"},
+	{"INTC1066"},
+	{"INTC10A0"},
+	{"INTC10A1"},
+	{"INTC10A2"},
+	{"INTC10A3"},
+	{"INTC10A4"},
+	{"INTC10A5"},
+	{""},
+};
+
+static int int340x_thermal_handler_attach(struct acpi_device *adev,
+					const struct acpi_device_id *id)
+{
+	if (IS_ENABLED(CONFIG_INT340X_THERMAL))
+		acpi_create_platform_device(adev, NULL);
+	/* Intel SoC DTS thermal driver needs INT3401 to set IRQ descriptor */
+	else if (IS_ENABLED(CONFIG_INTEL_SOC_DTS_THERMAL) &&
+		 id->driver_data == INT3401_DEVICE)
+		acpi_create_platform_device(adev, NULL);
+	return 1;
+}
+
+static struct acpi_scan_handler int340x_thermal_handler = {
+	.ids = int340x_thermal_device_ids,
+	.attach = int340x_thermal_handler_attach,
+};
+
+void __init acpi_int340x_thermal_init(void)
+{
+	acpi_scan_add_handler(&int340x_thermal_handler);
+}