source "drivers/platform/x86/intel/atomisp2/Kconfig"
source "drivers/platform/x86/intel/int1092/Kconfig"
-source "drivers/platform/x86/intel/int33fe/Kconfig"
source "drivers/platform/x86/intel/int3472/Kconfig"
source "drivers/platform/x86/intel/pmc/Kconfig"
source "drivers/platform/x86/intel/pmt/Kconfig"
To compile this driver as a module, choose M here: the module
will be called intel_chtdc_ti_pwrbtn.
+config INTEL_CHTWC_INT33FE
+ tristate "Intel Cherry Trail Whiskey Cove ACPI INT33FE Driver"
+ depends on X86 && ACPI && I2C && REGULATOR
+ depends on CHARGER_BQ24190=y || (CHARGER_BQ24190=m && m)
+ depends on USB_ROLES_INTEL_XHCI=y || (USB_ROLES_INTEL_XHCI=m && m)
+ depends on TYPEC_MUX_PI3USB30532=y || (TYPEC_MUX_PI3USB30532=m && m)
+ help
+ This driver add support for the Intel Cherry Trail Whiskey Cove
+ INT33FE ACPI device found on the GPD win and the GPD pocket.
+
+ The INT33FE ACPI device on these mini laptops contains I2cSerialBusV2
+ resources for a MAX17042 Fuel Gauge, FUSB302 USB Type-C Controller
+ and PI3USB30532 USB switch.
+ This driver instantiates i2c-clients for these, so that standard
+ i2c drivers for these chips can bind to the them.
+
+ If you enable this driver it is advised to also select
+ CONFIG_TYPEC_FUSB302=m, CONFIG_TYPEC_MUX_PI3USB30532=m and
+ CONFIG_BATTERY_MAX17042=m.
+
config INTEL_ISHTP_ECLITE
tristate "Intel ISHTP eclite controller Driver"
depends on INTEL_ISH_HID
obj-$(CONFIG_INTEL_ATOMISP2_PDX86) += atomisp2/
obj-$(CONFIG_INTEL_SAR_INT1092) += int1092/
-obj-$(CONFIG_INTEL_CHT_INT33FE) += int33fe/
obj-$(CONFIG_INTEL_SKL_INT3472) += int3472/
obj-$(CONFIG_INTEL_PMC_CORE) += pmc/
obj-$(CONFIG_INTEL_PMT_CLASS) += pmt/
obj-$(CONFIG_X86_ANDROID_TABLETS) += intel_crystal_cove_charger.o
intel_chtdc_ti_pwrbtn-y := chtdc_ti_pwrbtn.o
obj-$(CONFIG_INTEL_CHTDC_TI_PWRBTN) += intel_chtdc_ti_pwrbtn.o
+intel_chtwc_int33fe-y := chtwc_int33fe.o
+obj-$(CONFIG_INTEL_CHTWC_INT33FE) += intel_chtwc_int33fe.o
intel_mrfld_pwrbtn-y := mrfld_pwrbtn.o
obj-$(CONFIG_INTEL_MRFLD_PWRBTN) += intel_mrfld_pwrbtn.o
intel_punit_ipc-y := punit_ipc.o
--- /dev/null
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Intel Cherry Trail ACPI INT33FE pseudo device driver
+ *
+ * Copyright (C) 2017 Hans de Goede <hdegoede@redhat.com>
+ *
+ * Some Intel Cherry Trail based device which ship with Windows 10, have
+ * this weird INT33FE ACPI device with a CRS table with 4 I2cSerialBusV2
+ * resources, for 4 different chips attached to various I²C buses:
+ * 1. The Whiskey Cove PMIC, which is also described by the INT34D3 ACPI device
+ * 2. Maxim MAX17047 Fuel Gauge Controller
+ * 3. FUSB302 USB Type-C Controller
+ * 4. PI3USB30532 USB switch
+ *
+ * So this driver is a stub / pseudo driver whose only purpose is to
+ * instantiate I²C clients for chips 2 - 4, so that standard I²C drivers
+ * for these chips can bind to the them.
+ */
+
+#include <linux/dmi.h>
+#include <linux/i2c.h>
+#include <linux/interrupt.h>
+#include <linux/pci.h>
+#include <linux/platform_device.h>
+#include <linux/property.h>
+#include <linux/regulator/consumer.h>
+#include <linux/slab.h>
+#include <linux/usb/pd.h>
+
+struct cht_int33fe_data {
+ struct i2c_client *battery_fg;
+ struct i2c_client *fusb302;
+ struct i2c_client *pi3usb30532;
+ struct fwnode_handle *dp;
+};
+
+/*
+ * Grrr, I severely dislike buggy BIOS-es. At least one BIOS enumerates
+ * the max17047 both through the INT33FE ACPI device (it is right there
+ * in the resources table) as well as through a separate MAX17047 device.
+ *
+ * These helpers are used to work around this by checking if an I²C client
+ * for the max17047 has already been registered.
+ */
+static int cht_int33fe_check_for_max17047(struct device *dev, void *data)
+{
+ struct i2c_client **max17047 = data;
+ struct acpi_device *adev;
+
+ adev = ACPI_COMPANION(dev);
+ if (!adev)
+ return 0;
+
+ /* The MAX17047 ACPI node doesn't have an UID, so we don't check that */
+ if (!acpi_dev_hid_uid_match(adev, "MAX17047", NULL))
+ return 0;
+
+ *max17047 = to_i2c_client(dev);
+ return 1;
+}
+
+static const char * const max17047_suppliers[] = { "bq24190-charger" };
+
+static const struct property_entry max17047_properties[] = {
+ PROPERTY_ENTRY_STRING_ARRAY("supplied-from", max17047_suppliers),
+ { }
+};
+
+static const struct software_node max17047_node = {
+ .name = "max17047",
+ .properties = max17047_properties,
+};
+
+/*
+ * We are not using inline property here because those are constant,
+ * and we need to adjust this one at runtime to point to real
+ * software node.
+ */
+static struct software_node_ref_args fusb302_mux_refs[] = {
+ { .node = NULL },
+};
+
+static const struct property_entry fusb302_properties[] = {
+ PROPERTY_ENTRY_STRING("linux,extcon-name", "cht_wcove_pwrsrc"),
+ PROPERTY_ENTRY_REF_ARRAY("usb-role-switch", fusb302_mux_refs),
+ { }
+};
+
+static const struct software_node fusb302_node = {
+ .name = "fusb302",
+ .properties = fusb302_properties,
+};
+
+#define PDO_FIXED_FLAGS \
+ (PDO_FIXED_DUAL_ROLE | PDO_FIXED_DATA_SWAP | PDO_FIXED_USB_COMM)
+
+static const u32 src_pdo[] = {
+ PDO_FIXED(5000, 1500, PDO_FIXED_FLAGS),
+};
+
+static const u32 snk_pdo[] = {
+ PDO_FIXED(5000, 400, PDO_FIXED_FLAGS),
+ PDO_VAR(5000, 12000, 3000),
+};
+
+static const struct software_node pi3usb30532_node = {
+ .name = "pi3usb30532",
+};
+
+static const struct software_node displayport_node = {
+ .name = "displayport",
+};
+
+static const struct property_entry usb_connector_properties[] = {
+ PROPERTY_ENTRY_STRING("data-role", "dual"),
+ PROPERTY_ENTRY_STRING("power-role", "dual"),
+ PROPERTY_ENTRY_STRING("try-power-role", "sink"),
+ PROPERTY_ENTRY_U32_ARRAY("source-pdos", src_pdo),
+ PROPERTY_ENTRY_U32_ARRAY("sink-pdos", snk_pdo),
+ PROPERTY_ENTRY_U32("op-sink-microwatt", 2500000),
+ PROPERTY_ENTRY_REF("orientation-switch", &pi3usb30532_node),
+ PROPERTY_ENTRY_REF("mode-switch", &pi3usb30532_node),
+ PROPERTY_ENTRY_REF("displayport", &displayport_node),
+ { }
+};
+
+static const struct software_node usb_connector_node = {
+ .name = "connector",
+ .parent = &fusb302_node,
+ .properties = usb_connector_properties,
+};
+
+static const struct software_node altmodes_node = {
+ .name = "altmodes",
+ .parent = &usb_connector_node,
+};
+
+static const struct property_entry dp_altmode_properties[] = {
+ PROPERTY_ENTRY_U32("svid", 0xff01),
+ PROPERTY_ENTRY_U32("vdo", 0x0c0086),
+ { }
+};
+
+static const struct software_node dp_altmode_node = {
+ .name = "displayport-altmode",
+ .parent = &altmodes_node,
+ .properties = dp_altmode_properties,
+};
+
+static const struct software_node *node_group[] = {
+ &fusb302_node,
+ &max17047_node,
+ &pi3usb30532_node,
+ &displayport_node,
+ &usb_connector_node,
+ &altmodes_node,
+ &dp_altmode_node,
+ NULL
+};
+
+static int cht_int33fe_setup_dp(struct cht_int33fe_data *data)
+{
+ struct fwnode_handle *fwnode;
+ struct pci_dev *pdev;
+
+ fwnode = software_node_fwnode(&displayport_node);
+ if (!fwnode)
+ return -ENODEV;
+
+ /* First let's find the GPU PCI device */
+ pdev = pci_get_class(PCI_CLASS_DISPLAY_VGA << 8, NULL);
+ if (!pdev || pdev->vendor != PCI_VENDOR_ID_INTEL) {
+ pci_dev_put(pdev);
+ return -ENODEV;
+ }
+
+ /* Then the DP-2 child device node */
+ data->dp = device_get_named_child_node(&pdev->dev, "DD04");
+ pci_dev_put(pdev);
+ if (!data->dp)
+ return -ENODEV;
+
+ fwnode->secondary = ERR_PTR(-ENODEV);
+ data->dp->secondary = fwnode;
+
+ return 0;
+}
+
+static void cht_int33fe_remove_nodes(struct cht_int33fe_data *data)
+{
+ software_node_unregister_node_group(node_group);
+
+ if (fusb302_mux_refs[0].node) {
+ fwnode_handle_put(software_node_fwnode(fusb302_mux_refs[0].node));
+ fusb302_mux_refs[0].node = NULL;
+ }
+
+ if (data->dp) {
+ data->dp->secondary = NULL;
+ fwnode_handle_put(data->dp);
+ data->dp = NULL;
+ }
+}
+
+static int cht_int33fe_add_nodes(struct cht_int33fe_data *data)
+{
+ const struct software_node *mux_ref_node;
+ int ret;
+
+ /*
+ * There is no ACPI device node for the USB role mux, so we need to wait
+ * until the mux driver has created software node for the mux device.
+ * It means we depend on the mux driver. This function will return
+ * -EPROBE_DEFER until the mux device is registered.
+ */
+ mux_ref_node = software_node_find_by_name(NULL, "intel-xhci-usb-sw");
+ if (!mux_ref_node)
+ return -EPROBE_DEFER;
+
+ /*
+ * Update node used in "usb-role-switch" property. Note that we
+ * rely on software_node_register_nodes() to use the original
+ * instance of properties instead of copying them.
+ */
+ fusb302_mux_refs[0].node = mux_ref_node;
+
+ ret = software_node_register_node_group(node_group);
+ if (ret)
+ return ret;
+
+ /* The devices that are not created in this driver need extra steps. */
+
+ /*
+ * The DP connector does have ACPI device node. In this case we can just
+ * find that ACPI node and assign our node as the secondary node to it.
+ */
+ ret = cht_int33fe_setup_dp(data);
+ if (ret)
+ goto err_remove_nodes;
+
+ return 0;
+
+err_remove_nodes:
+ cht_int33fe_remove_nodes(data);
+
+ return ret;
+}
+
+static int
+cht_int33fe_register_max17047(struct device *dev, struct cht_int33fe_data *data)
+{
+ struct i2c_client *max17047 = NULL;
+ struct i2c_board_info board_info;
+ struct fwnode_handle *fwnode;
+ int ret;
+
+ fwnode = software_node_fwnode(&max17047_node);
+ if (!fwnode)
+ return -ENODEV;
+
+ i2c_for_each_dev(&max17047, cht_int33fe_check_for_max17047);
+ if (max17047) {
+ /* Pre-existing I²C client for the max17047, add device properties */
+ set_secondary_fwnode(&max17047->dev, fwnode);
+ /* And re-probe to get the new device properties applied */
+ ret = device_reprobe(&max17047->dev);
+ if (ret)
+ dev_warn(dev, "Reprobing max17047 error: %d\n", ret);
+ return 0;
+ }
+
+ memset(&board_info, 0, sizeof(board_info));
+ strlcpy(board_info.type, "max17047", I2C_NAME_SIZE);
+ board_info.dev_name = "max17047";
+ board_info.fwnode = fwnode;
+ data->battery_fg = i2c_acpi_new_device(dev, 1, &board_info);
+
+ return PTR_ERR_OR_ZERO(data->battery_fg);
+}
+
+static const struct dmi_system_id cht_int33fe_typec_ids[] = {
+ {
+ /*
+ * GPD win / GPD pocket mini laptops
+ *
+ * This DMI match may not seem unique, but it is. In the 67000+
+ * DMI decode dumps from linux-hardware.org only 116 have
+ * board_vendor set to "AMI Corporation" and of those 116 only
+ * the GPD win's and pocket's board_name is "Default string".
+ */
+ .matches = {
+ DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
+ DMI_EXACT_MATCH(DMI_BOARD_NAME, "Default string"),
+ DMI_EXACT_MATCH(DMI_BOARD_SERIAL, "Default string"),
+ DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Default string"),
+ },
+ },
+ { }
+};
+MODULE_DEVICE_TABLE(dmi, cht_int33fe_typec_ids);
+
+static int cht_int33fe_typec_probe(struct platform_device *pdev)
+{
+ struct i2c_board_info board_info;
+ struct device *dev = &pdev->dev;
+ struct cht_int33fe_data *data;
+ struct fwnode_handle *fwnode;
+ struct regulator *regulator;
+ int fusb302_irq;
+ int ret;
+
+ if (!dmi_check_system(cht_int33fe_typec_ids))
+ return -ENODEV;
+
+ data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
+ if (!data)
+ return -ENOMEM;
+
+ /*
+ * We expect the WC PMIC to be paired with a TI bq24292i charger-IC.
+ * We check for the bq24292i vbus regulator here, this has 2 purposes:
+ * 1) The bq24292i allows charging with up to 12V, setting the fusb302's
+ * max-snk voltage to 12V with another charger-IC is not good.
+ * 2) For the fusb302 driver to get the bq24292i vbus regulator, the
+ * regulator-map, which is part of the bq24292i regulator_init_data,
+ * must be registered before the fusb302 is instantiated, otherwise
+ * it will end up with a dummy-regulator.
+ * Note "cht_wc_usb_typec_vbus" comes from the regulator_init_data
+ * which is defined in i2c-cht-wc.c from where the bq24292i I²C client
+ * gets instantiated. We use regulator_get_optional here so that we
+ * don't end up getting a dummy-regulator ourselves.
+ */
+ regulator = regulator_get_optional(dev, "cht_wc_usb_typec_vbus");
+ if (IS_ERR(regulator)) {
+ ret = PTR_ERR(regulator);
+ return (ret == -ENODEV) ? -EPROBE_DEFER : ret;
+ }
+ regulator_put(regulator);
+
+ /* The FUSB302 uses the IRQ at index 1 and is the only IRQ user */
+ fusb302_irq = acpi_dev_gpio_irq_get(ACPI_COMPANION(dev), 1);
+ if (fusb302_irq < 0) {
+ if (fusb302_irq != -EPROBE_DEFER)
+ dev_err(dev, "Error getting FUSB302 irq\n");
+ return fusb302_irq;
+ }
+
+ ret = cht_int33fe_add_nodes(data);
+ if (ret)
+ return ret;
+
+ /* Work around BIOS bug, see comment on cht_int33fe_check_for_max17047() */
+ ret = cht_int33fe_register_max17047(dev, data);
+ if (ret)
+ goto out_remove_nodes;
+
+ fwnode = software_node_fwnode(&fusb302_node);
+ if (!fwnode) {
+ ret = -ENODEV;
+ goto out_unregister_max17047;
+ }
+
+ memset(&board_info, 0, sizeof(board_info));
+ strlcpy(board_info.type, "typec_fusb302", I2C_NAME_SIZE);
+ board_info.dev_name = "fusb302";
+ board_info.fwnode = fwnode;
+ board_info.irq = fusb302_irq;
+
+ data->fusb302 = i2c_acpi_new_device(dev, 2, &board_info);
+ if (IS_ERR(data->fusb302)) {
+ ret = PTR_ERR(data->fusb302);
+ goto out_unregister_max17047;
+ }
+
+ fwnode = software_node_fwnode(&pi3usb30532_node);
+ if (!fwnode) {
+ ret = -ENODEV;
+ goto out_unregister_fusb302;
+ }
+
+ memset(&board_info, 0, sizeof(board_info));
+ board_info.dev_name = "pi3usb30532";
+ board_info.fwnode = fwnode;
+ strlcpy(board_info.type, "pi3usb30532", I2C_NAME_SIZE);
+
+ data->pi3usb30532 = i2c_acpi_new_device(dev, 3, &board_info);
+ if (IS_ERR(data->pi3usb30532)) {
+ ret = PTR_ERR(data->pi3usb30532);
+ goto out_unregister_fusb302;
+ }
+
+ return 0;
+
+out_unregister_fusb302:
+ i2c_unregister_device(data->fusb302);
+
+out_unregister_max17047:
+ i2c_unregister_device(data->battery_fg);
+
+out_remove_nodes:
+ cht_int33fe_remove_nodes(data);
+
+ return ret;
+}
+
+static int cht_int33fe_typec_remove(struct platform_device *pdev)
+{
+ struct cht_int33fe_data *data = platform_get_drvdata(pdev);
+
+ i2c_unregister_device(data->pi3usb30532);
+ i2c_unregister_device(data->fusb302);
+ i2c_unregister_device(data->battery_fg);
+
+ cht_int33fe_remove_nodes(data);
+
+ return 0;
+}
+
+static const struct acpi_device_id cht_int33fe_acpi_ids[] = {
+ { "INT33FE", },
+ { }
+};
+
+static struct platform_driver cht_int33fe_typec_driver = {
+ .driver = {
+ .name = "Intel Cherry Trail ACPI INT33FE Type-C driver",
+ .acpi_match_table = ACPI_PTR(cht_int33fe_acpi_ids),
+ },
+ .probe = cht_int33fe_typec_probe,
+ .remove = cht_int33fe_typec_remove,
+};
+
+module_platform_driver(cht_int33fe_typec_driver);
+
+MODULE_DESCRIPTION("Intel Cherry Trail ACPI INT33FE Type-C pseudo device driver");
+MODULE_AUTHOR("Hans de Goede <hdegoede@redhat.com>");
+MODULE_LICENSE("GPL v2");
+++ /dev/null
-# SPDX-License-Identifier: GPL-2.0-only
-config INTEL_CHT_INT33FE
- tristate "Intel Cherry Trail ACPI INT33FE Driver"
- depends on X86 && ACPI && I2C && REGULATOR
- depends on CHARGER_BQ24190=y || (CHARGER_BQ24190=m && m)
- depends on USB_ROLES_INTEL_XHCI=y || (USB_ROLES_INTEL_XHCI=m && m)
- depends on TYPEC_MUX_PI3USB30532=y || (TYPEC_MUX_PI3USB30532=m && m)
- help
- This driver add support for the INT33FE ACPI device found on the
- GPD win and the GPD pocket.
-
- The INT33FE ACPI device on these mini laptops contains I2cSerialBusV2
- resources for a MAX17042 Fuel Gauge, FUSB302 USB Type-C Controller
- and PI3USB30532 USB switch.
- This driver instantiates i2c-clients for these, so that standard
- i2c drivers for these chips can bind to the them.
-
- If you enable this driver it is advised to also select
- CONFIG_TYPEC_FUSB302=m, CONFIG_TYPEC_MUX_PI3USB30532=m and
- CONFIG_BATTERY_MAX17042=m.
+++ /dev/null
-# SPDX-License-Identifier: GPL-2.0-only
-obj-$(CONFIG_INTEL_CHT_INT33FE) += intel_cht_int33fe_typec.o
+++ /dev/null
-// SPDX-License-Identifier: GPL-2.0
-/*
- * Intel Cherry Trail ACPI INT33FE pseudo device driver
- *
- * Copyright (C) 2017 Hans de Goede <hdegoede@redhat.com>
- *
- * Some Intel Cherry Trail based device which ship with Windows 10, have
- * this weird INT33FE ACPI device with a CRS table with 4 I2cSerialBusV2
- * resources, for 4 different chips attached to various I²C buses:
- * 1. The Whiskey Cove PMIC, which is also described by the INT34D3 ACPI device
- * 2. Maxim MAX17047 Fuel Gauge Controller
- * 3. FUSB302 USB Type-C Controller
- * 4. PI3USB30532 USB switch
- *
- * So this driver is a stub / pseudo driver whose only purpose is to
- * instantiate I²C clients for chips 2 - 4, so that standard I²C drivers
- * for these chips can bind to the them.
- */
-
-#include <linux/dmi.h>
-#include <linux/i2c.h>
-#include <linux/interrupt.h>
-#include <linux/pci.h>
-#include <linux/platform_device.h>
-#include <linux/property.h>
-#include <linux/regulator/consumer.h>
-#include <linux/slab.h>
-#include <linux/usb/pd.h>
-
-struct cht_int33fe_data {
- struct i2c_client *battery_fg;
- struct i2c_client *fusb302;
- struct i2c_client *pi3usb30532;
- struct fwnode_handle *dp;
-};
-
-/*
- * Grrr, I severely dislike buggy BIOS-es. At least one BIOS enumerates
- * the max17047 both through the INT33FE ACPI device (it is right there
- * in the resources table) as well as through a separate MAX17047 device.
- *
- * These helpers are used to work around this by checking if an I²C client
- * for the max17047 has already been registered.
- */
-static int cht_int33fe_check_for_max17047(struct device *dev, void *data)
-{
- struct i2c_client **max17047 = data;
- struct acpi_device *adev;
-
- adev = ACPI_COMPANION(dev);
- if (!adev)
- return 0;
-
- /* The MAX17047 ACPI node doesn't have an UID, so we don't check that */
- if (!acpi_dev_hid_uid_match(adev, "MAX17047", NULL))
- return 0;
-
- *max17047 = to_i2c_client(dev);
- return 1;
-}
-
-static const char * const max17047_suppliers[] = { "bq24190-charger" };
-
-static const struct property_entry max17047_properties[] = {
- PROPERTY_ENTRY_STRING_ARRAY("supplied-from", max17047_suppliers),
- { }
-};
-
-static const struct software_node max17047_node = {
- .name = "max17047",
- .properties = max17047_properties,
-};
-
-/*
- * We are not using inline property here because those are constant,
- * and we need to adjust this one at runtime to point to real
- * software node.
- */
-static struct software_node_ref_args fusb302_mux_refs[] = {
- { .node = NULL },
-};
-
-static const struct property_entry fusb302_properties[] = {
- PROPERTY_ENTRY_STRING("linux,extcon-name", "cht_wcove_pwrsrc"),
- PROPERTY_ENTRY_REF_ARRAY("usb-role-switch", fusb302_mux_refs),
- { }
-};
-
-static const struct software_node fusb302_node = {
- .name = "fusb302",
- .properties = fusb302_properties,
-};
-
-#define PDO_FIXED_FLAGS \
- (PDO_FIXED_DUAL_ROLE | PDO_FIXED_DATA_SWAP | PDO_FIXED_USB_COMM)
-
-static const u32 src_pdo[] = {
- PDO_FIXED(5000, 1500, PDO_FIXED_FLAGS),
-};
-
-static const u32 snk_pdo[] = {
- PDO_FIXED(5000, 400, PDO_FIXED_FLAGS),
- PDO_VAR(5000, 12000, 3000),
-};
-
-static const struct software_node pi3usb30532_node = {
- .name = "pi3usb30532",
-};
-
-static const struct software_node displayport_node = {
- .name = "displayport",
-};
-
-static const struct property_entry usb_connector_properties[] = {
- PROPERTY_ENTRY_STRING("data-role", "dual"),
- PROPERTY_ENTRY_STRING("power-role", "dual"),
- PROPERTY_ENTRY_STRING("try-power-role", "sink"),
- PROPERTY_ENTRY_U32_ARRAY("source-pdos", src_pdo),
- PROPERTY_ENTRY_U32_ARRAY("sink-pdos", snk_pdo),
- PROPERTY_ENTRY_U32("op-sink-microwatt", 2500000),
- PROPERTY_ENTRY_REF("orientation-switch", &pi3usb30532_node),
- PROPERTY_ENTRY_REF("mode-switch", &pi3usb30532_node),
- PROPERTY_ENTRY_REF("displayport", &displayport_node),
- { }
-};
-
-static const struct software_node usb_connector_node = {
- .name = "connector",
- .parent = &fusb302_node,
- .properties = usb_connector_properties,
-};
-
-static const struct software_node altmodes_node = {
- .name = "altmodes",
- .parent = &usb_connector_node,
-};
-
-static const struct property_entry dp_altmode_properties[] = {
- PROPERTY_ENTRY_U32("svid", 0xff01),
- PROPERTY_ENTRY_U32("vdo", 0x0c0086),
- { }
-};
-
-static const struct software_node dp_altmode_node = {
- .name = "displayport-altmode",
- .parent = &altmodes_node,
- .properties = dp_altmode_properties,
-};
-
-static const struct software_node *node_group[] = {
- &fusb302_node,
- &max17047_node,
- &pi3usb30532_node,
- &displayport_node,
- &usb_connector_node,
- &altmodes_node,
- &dp_altmode_node,
- NULL
-};
-
-static int cht_int33fe_setup_dp(struct cht_int33fe_data *data)
-{
- struct fwnode_handle *fwnode;
- struct pci_dev *pdev;
-
- fwnode = software_node_fwnode(&displayport_node);
- if (!fwnode)
- return -ENODEV;
-
- /* First let's find the GPU PCI device */
- pdev = pci_get_class(PCI_CLASS_DISPLAY_VGA << 8, NULL);
- if (!pdev || pdev->vendor != PCI_VENDOR_ID_INTEL) {
- pci_dev_put(pdev);
- return -ENODEV;
- }
-
- /* Then the DP-2 child device node */
- data->dp = device_get_named_child_node(&pdev->dev, "DD04");
- pci_dev_put(pdev);
- if (!data->dp)
- return -ENODEV;
-
- fwnode->secondary = ERR_PTR(-ENODEV);
- data->dp->secondary = fwnode;
-
- return 0;
-}
-
-static void cht_int33fe_remove_nodes(struct cht_int33fe_data *data)
-{
- software_node_unregister_node_group(node_group);
-
- if (fusb302_mux_refs[0].node) {
- fwnode_handle_put(software_node_fwnode(fusb302_mux_refs[0].node));
- fusb302_mux_refs[0].node = NULL;
- }
-
- if (data->dp) {
- data->dp->secondary = NULL;
- fwnode_handle_put(data->dp);
- data->dp = NULL;
- }
-}
-
-static int cht_int33fe_add_nodes(struct cht_int33fe_data *data)
-{
- const struct software_node *mux_ref_node;
- int ret;
-
- /*
- * There is no ACPI device node for the USB role mux, so we need to wait
- * until the mux driver has created software node for the mux device.
- * It means we depend on the mux driver. This function will return
- * -EPROBE_DEFER until the mux device is registered.
- */
- mux_ref_node = software_node_find_by_name(NULL, "intel-xhci-usb-sw");
- if (!mux_ref_node)
- return -EPROBE_DEFER;
-
- /*
- * Update node used in "usb-role-switch" property. Note that we
- * rely on software_node_register_nodes() to use the original
- * instance of properties instead of copying them.
- */
- fusb302_mux_refs[0].node = mux_ref_node;
-
- ret = software_node_register_node_group(node_group);
- if (ret)
- return ret;
-
- /* The devices that are not created in this driver need extra steps. */
-
- /*
- * The DP connector does have ACPI device node. In this case we can just
- * find that ACPI node and assign our node as the secondary node to it.
- */
- ret = cht_int33fe_setup_dp(data);
- if (ret)
- goto err_remove_nodes;
-
- return 0;
-
-err_remove_nodes:
- cht_int33fe_remove_nodes(data);
-
- return ret;
-}
-
-static int
-cht_int33fe_register_max17047(struct device *dev, struct cht_int33fe_data *data)
-{
- struct i2c_client *max17047 = NULL;
- struct i2c_board_info board_info;
- struct fwnode_handle *fwnode;
- int ret;
-
- fwnode = software_node_fwnode(&max17047_node);
- if (!fwnode)
- return -ENODEV;
-
- i2c_for_each_dev(&max17047, cht_int33fe_check_for_max17047);
- if (max17047) {
- /* Pre-existing I²C client for the max17047, add device properties */
- set_secondary_fwnode(&max17047->dev, fwnode);
- /* And re-probe to get the new device properties applied */
- ret = device_reprobe(&max17047->dev);
- if (ret)
- dev_warn(dev, "Reprobing max17047 error: %d\n", ret);
- return 0;
- }
-
- memset(&board_info, 0, sizeof(board_info));
- strlcpy(board_info.type, "max17047", I2C_NAME_SIZE);
- board_info.dev_name = "max17047";
- board_info.fwnode = fwnode;
- data->battery_fg = i2c_acpi_new_device(dev, 1, &board_info);
-
- return PTR_ERR_OR_ZERO(data->battery_fg);
-}
-
-static const struct dmi_system_id cht_int33fe_typec_ids[] = {
- {
- /*
- * GPD win / GPD pocket mini laptops
- *
- * This DMI match may not seem unique, but it is. In the 67000+
- * DMI decode dumps from linux-hardware.org only 116 have
- * board_vendor set to "AMI Corporation" and of those 116 only
- * the GPD win's and pocket's board_name is "Default string".
- */
- .matches = {
- DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
- DMI_EXACT_MATCH(DMI_BOARD_NAME, "Default string"),
- DMI_EXACT_MATCH(DMI_BOARD_SERIAL, "Default string"),
- DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Default string"),
- },
- },
- { }
-};
-MODULE_DEVICE_TABLE(dmi, cht_int33fe_typec_ids);
-
-static int cht_int33fe_typec_probe(struct platform_device *pdev)
-{
- struct i2c_board_info board_info;
- struct device *dev = &pdev->dev;
- struct cht_int33fe_data *data;
- struct fwnode_handle *fwnode;
- struct regulator *regulator;
- int fusb302_irq;
- int ret;
-
- if (!dmi_check_system(cht_int33fe_typec_ids))
- return -ENODEV;
-
- data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
- if (!data)
- return -ENOMEM;
-
- /*
- * We expect the WC PMIC to be paired with a TI bq24292i charger-IC.
- * We check for the bq24292i vbus regulator here, this has 2 purposes:
- * 1) The bq24292i allows charging with up to 12V, setting the fusb302's
- * max-snk voltage to 12V with another charger-IC is not good.
- * 2) For the fusb302 driver to get the bq24292i vbus regulator, the
- * regulator-map, which is part of the bq24292i regulator_init_data,
- * must be registered before the fusb302 is instantiated, otherwise
- * it will end up with a dummy-regulator.
- * Note "cht_wc_usb_typec_vbus" comes from the regulator_init_data
- * which is defined in i2c-cht-wc.c from where the bq24292i I²C client
- * gets instantiated. We use regulator_get_optional here so that we
- * don't end up getting a dummy-regulator ourselves.
- */
- regulator = regulator_get_optional(dev, "cht_wc_usb_typec_vbus");
- if (IS_ERR(regulator)) {
- ret = PTR_ERR(regulator);
- return (ret == -ENODEV) ? -EPROBE_DEFER : ret;
- }
- regulator_put(regulator);
-
- /* The FUSB302 uses the IRQ at index 1 and is the only IRQ user */
- fusb302_irq = acpi_dev_gpio_irq_get(ACPI_COMPANION(dev), 1);
- if (fusb302_irq < 0) {
- if (fusb302_irq != -EPROBE_DEFER)
- dev_err(dev, "Error getting FUSB302 irq\n");
- return fusb302_irq;
- }
-
- ret = cht_int33fe_add_nodes(data);
- if (ret)
- return ret;
-
- /* Work around BIOS bug, see comment on cht_int33fe_check_for_max17047() */
- ret = cht_int33fe_register_max17047(dev, data);
- if (ret)
- goto out_remove_nodes;
-
- fwnode = software_node_fwnode(&fusb302_node);
- if (!fwnode) {
- ret = -ENODEV;
- goto out_unregister_max17047;
- }
-
- memset(&board_info, 0, sizeof(board_info));
- strlcpy(board_info.type, "typec_fusb302", I2C_NAME_SIZE);
- board_info.dev_name = "fusb302";
- board_info.fwnode = fwnode;
- board_info.irq = fusb302_irq;
-
- data->fusb302 = i2c_acpi_new_device(dev, 2, &board_info);
- if (IS_ERR(data->fusb302)) {
- ret = PTR_ERR(data->fusb302);
- goto out_unregister_max17047;
- }
-
- fwnode = software_node_fwnode(&pi3usb30532_node);
- if (!fwnode) {
- ret = -ENODEV;
- goto out_unregister_fusb302;
- }
-
- memset(&board_info, 0, sizeof(board_info));
- board_info.dev_name = "pi3usb30532";
- board_info.fwnode = fwnode;
- strlcpy(board_info.type, "pi3usb30532", I2C_NAME_SIZE);
-
- data->pi3usb30532 = i2c_acpi_new_device(dev, 3, &board_info);
- if (IS_ERR(data->pi3usb30532)) {
- ret = PTR_ERR(data->pi3usb30532);
- goto out_unregister_fusb302;
- }
-
- return 0;
-
-out_unregister_fusb302:
- i2c_unregister_device(data->fusb302);
-
-out_unregister_max17047:
- i2c_unregister_device(data->battery_fg);
-
-out_remove_nodes:
- cht_int33fe_remove_nodes(data);
-
- return ret;
-}
-
-static int cht_int33fe_typec_remove(struct platform_device *pdev)
-{
- struct cht_int33fe_data *data = platform_get_drvdata(pdev);
-
- i2c_unregister_device(data->pi3usb30532);
- i2c_unregister_device(data->fusb302);
- i2c_unregister_device(data->battery_fg);
-
- cht_int33fe_remove_nodes(data);
-
- return 0;
-}
-
-static const struct acpi_device_id cht_int33fe_acpi_ids[] = {
- { "INT33FE", },
- { }
-};
-
-static struct platform_driver cht_int33fe_typec_driver = {
- .driver = {
- .name = "Intel Cherry Trail ACPI INT33FE Type-C driver",
- .acpi_match_table = ACPI_PTR(cht_int33fe_acpi_ids),
- },
- .probe = cht_int33fe_typec_probe,
- .remove = cht_int33fe_typec_remove,
-};
-
-module_platform_driver(cht_int33fe_typec_driver);
-
-MODULE_DESCRIPTION("Intel Cherry Trail ACPI INT33FE Type-C pseudo device driver");
-MODULE_AUTHOR("Hans de Goede <hdegoede@redhat.com>");
-MODULE_LICENSE("GPL v2");
projects / linux.git / commitdiff