1885 lines
53 KiB
C
1885 lines
53 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* DMI based code to deal with broken DSDTs on X86 tablets which ship with
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* Android as (part of) the factory image. The factory kernels shipped on these
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* devices typically have a bunch of things hardcoded, rather than specified
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* in their DSDT.
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*
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* Copyright (C) 2021-2022 Hans de Goede <hdegoede@redhat.com>
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*/
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#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
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#include <linux/acpi.h>
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#include <linux/dmi.h>
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#include <linux/efi.h>
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#include <linux/gpio_keys.h>
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#include <linux/gpio/consumer.h>
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#include <linux/gpio/driver.h>
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#include <linux/gpio/machine.h>
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#include <linux/i2c.h>
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#include <linux/input.h>
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#include <linux/irq.h>
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#include <linux/irqdomain.h>
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#include <linux/module.h>
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#include <linux/mod_devicetable.h>
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#include <linux/pinctrl/consumer.h>
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#include <linux/pinctrl/machine.h>
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#include <linux/platform_data/lp855x.h>
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#include <linux/platform_device.h>
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#include <linux/power/bq24190_charger.h>
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#include <linux/reboot.h>
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#include <linux/rmi.h>
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#include <linux/serdev.h>
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#include <linux/spi/spi.h>
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#include <linux/string.h>
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/* For gpio_get_desc() which is EXPORT_SYMBOL_GPL() */
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#include "../../gpio/gpiolib.h"
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#include "../../gpio/gpiolib-acpi.h"
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/*
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* Helper code to get Linux IRQ numbers given a description of the IRQ source
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* (either IOAPIC index, or GPIO chip name + pin-number).
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*/
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enum x86_acpi_irq_type {
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X86_ACPI_IRQ_TYPE_NONE,
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X86_ACPI_IRQ_TYPE_APIC,
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X86_ACPI_IRQ_TYPE_GPIOINT,
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X86_ACPI_IRQ_TYPE_PMIC,
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};
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struct x86_acpi_irq_data {
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char *chip; /* GPIO chip label (GPIOINT) or PMIC ACPI path (PMIC) */
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enum x86_acpi_irq_type type;
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enum irq_domain_bus_token domain;
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int index;
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int trigger; /* ACPI_EDGE_SENSITIVE / ACPI_LEVEL_SENSITIVE */
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int polarity; /* ACPI_ACTIVE_HIGH / ACPI_ACTIVE_LOW / ACPI_ACTIVE_BOTH */
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};
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static int gpiochip_find_match_label(struct gpio_chip *gc, void *data)
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{
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return gc->label && !strcmp(gc->label, data);
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}
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static int x86_android_tablet_get_gpiod(char *label, int pin, struct gpio_desc **desc)
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{
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struct gpio_desc *gpiod;
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struct gpio_chip *chip;
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chip = gpiochip_find(label, gpiochip_find_match_label);
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if (!chip) {
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pr_err("error cannot find GPIO chip %s\n", label);
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return -ENODEV;
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}
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gpiod = gpiochip_get_desc(chip, pin);
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if (IS_ERR(gpiod)) {
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pr_err("error %ld getting GPIO %s %d\n", PTR_ERR(gpiod), label, pin);
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return PTR_ERR(gpiod);
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}
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*desc = gpiod;
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return 0;
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}
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static int x86_acpi_irq_helper_get(const struct x86_acpi_irq_data *data)
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{
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struct irq_fwspec fwspec = { };
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struct irq_domain *domain;
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struct acpi_device *adev;
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struct gpio_desc *gpiod;
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unsigned int irq_type;
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acpi_handle handle;
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acpi_status status;
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int irq, ret;
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switch (data->type) {
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case X86_ACPI_IRQ_TYPE_APIC:
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/*
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* The DSDT may already reference the GSI in a device skipped by
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* acpi_quirk_skip_i2c_client_enumeration(). Unregister the GSI
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* to avoid EBUSY errors in this case.
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*/
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acpi_unregister_gsi(data->index);
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irq = acpi_register_gsi(NULL, data->index, data->trigger, data->polarity);
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if (irq < 0)
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pr_err("error %d getting APIC IRQ %d\n", irq, data->index);
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return irq;
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case X86_ACPI_IRQ_TYPE_GPIOINT:
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/* Like acpi_dev_gpio_irq_get(), but without parsing ACPI resources */
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ret = x86_android_tablet_get_gpiod(data->chip, data->index, &gpiod);
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if (ret)
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return ret;
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irq = gpiod_to_irq(gpiod);
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if (irq < 0) {
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pr_err("error %d getting IRQ %s %d\n", irq, data->chip, data->index);
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return irq;
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}
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irq_type = acpi_dev_get_irq_type(data->trigger, data->polarity);
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if (irq_type != IRQ_TYPE_NONE && irq_type != irq_get_trigger_type(irq))
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irq_set_irq_type(irq, irq_type);
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return irq;
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case X86_ACPI_IRQ_TYPE_PMIC:
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status = acpi_get_handle(NULL, data->chip, &handle);
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if (ACPI_FAILURE(status)) {
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pr_err("error could not get %s handle\n", data->chip);
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return -ENODEV;
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}
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adev = acpi_fetch_acpi_dev(handle);
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if (!adev) {
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pr_err("error could not get %s adev\n", data->chip);
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return -ENODEV;
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}
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fwspec.fwnode = acpi_fwnode_handle(adev);
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domain = irq_find_matching_fwspec(&fwspec, data->domain);
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if (!domain) {
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pr_err("error could not find IRQ domain for %s\n", data->chip);
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return -ENODEV;
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}
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return irq_create_mapping(domain, data->index);
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default:
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return 0;
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}
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}
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struct x86_i2c_client_info {
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struct i2c_board_info board_info;
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char *adapter_path;
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struct x86_acpi_irq_data irq_data;
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};
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struct x86_serdev_info {
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const char *ctrl_hid;
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const char *ctrl_uid;
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const char *ctrl_devname;
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/*
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* ATM the serdev core only supports of or ACPI matching; and sofar all
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* Android x86 tablets DSDTs have usable serdev nodes, but sometimes
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* under the wrong controller. So we just tie the existing serdev ACPI
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* node to the right controller.
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*/
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const char *serdev_hid;
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};
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struct x86_dev_info {
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char *invalid_aei_gpiochip;
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const char * const *modules;
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const struct software_node *bat_swnode;
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struct gpiod_lookup_table * const *gpiod_lookup_tables;
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const struct x86_i2c_client_info *i2c_client_info;
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const struct platform_device_info *pdev_info;
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const struct x86_serdev_info *serdev_info;
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int i2c_client_count;
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int pdev_count;
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int serdev_count;
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int (*init)(void);
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void (*exit)(void);
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};
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/* Generic / shared charger / battery settings */
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static const char * const tusb1211_chg_det_psy[] = { "tusb1211-charger-detect" };
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static const char * const bq24190_psy[] = { "bq24190-charger" };
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static const char * const bq25890_psy[] = { "bq25890-charger-0" };
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static const struct property_entry fg_bq24190_supply_props[] = {
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PROPERTY_ENTRY_STRING_ARRAY("supplied-from", bq24190_psy),
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{ }
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};
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static const struct software_node fg_bq24190_supply_node = {
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.properties = fg_bq24190_supply_props,
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};
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static const struct property_entry fg_bq25890_supply_props[] = {
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PROPERTY_ENTRY_STRING_ARRAY("supplied-from", bq25890_psy),
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{ }
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};
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static const struct software_node fg_bq25890_supply_node = {
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.properties = fg_bq25890_supply_props,
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};
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/* LiPo HighVoltage (max 4.35V) settings used by most devs with a HV bat. */
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static const struct property_entry generic_lipo_hv_4v35_battery_props[] = {
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PROPERTY_ENTRY_STRING("compatible", "simple-battery"),
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PROPERTY_ENTRY_STRING("device-chemistry", "lithium-ion"),
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PROPERTY_ENTRY_U32("precharge-current-microamp", 256000),
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PROPERTY_ENTRY_U32("charge-term-current-microamp", 128000),
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PROPERTY_ENTRY_U32("constant-charge-current-max-microamp", 1856000),
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PROPERTY_ENTRY_U32("constant-charge-voltage-max-microvolt", 4352000),
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PROPERTY_ENTRY_U32("factory-internal-resistance-micro-ohms", 150000),
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{ }
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};
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static const struct software_node generic_lipo_hv_4v35_battery_node = {
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.properties = generic_lipo_hv_4v35_battery_props,
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};
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/* For enabling the bq24190 5V boost based on id-pin */
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static struct regulator_consumer_supply intel_int3496_consumer = {
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.supply = "vbus",
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.dev_name = "intel-int3496",
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};
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static const struct regulator_init_data bq24190_vbus_init_data = {
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.constraints = {
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.name = "bq24190_vbus",
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.valid_ops_mask = REGULATOR_CHANGE_STATUS,
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},
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.consumer_supplies = &intel_int3496_consumer,
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.num_consumer_supplies = 1,
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};
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static struct bq24190_platform_data bq24190_pdata = {
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.regulator_init_data = &bq24190_vbus_init_data,
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};
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static const char * const bq24190_modules[] __initconst = {
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"intel_crystal_cove_charger", /* For the bq24190 IRQ */
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"bq24190_charger", /* For the Vbus regulator for intel-int3496 */
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NULL
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};
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/* Generic pdevs array and gpio-lookups for micro USB ID pin handling */
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static const struct platform_device_info int3496_pdevs[] __initconst = {
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{
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/* For micro USB ID pin handling */
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.name = "intel-int3496",
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.id = PLATFORM_DEVID_NONE,
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},
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};
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static struct gpiod_lookup_table int3496_gpo2_pin22_gpios = {
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.dev_id = "intel-int3496",
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.table = {
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GPIO_LOOKUP("INT33FC:02", 22, "id", GPIO_ACTIVE_HIGH),
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{ }
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},
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};
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static struct gpiod_lookup_table int3496_reference_gpios = {
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.dev_id = "intel-int3496",
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.table = {
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GPIO_LOOKUP("INT33FC:01", 15, "vbus", GPIO_ACTIVE_HIGH),
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GPIO_LOOKUP("INT33FC:02", 1, "mux", GPIO_ACTIVE_HIGH),
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GPIO_LOOKUP("INT33FC:02", 18, "id", GPIO_ACTIVE_HIGH),
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{ }
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},
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};
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/* Acer Iconia One 7 B1-750 has an Android factory img with everything hardcoded */
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static const char * const acer_b1_750_mount_matrix[] = {
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"-1", "0", "0",
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"0", "1", "0",
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"0", "0", "1"
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};
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static const struct property_entry acer_b1_750_bma250e_props[] = {
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PROPERTY_ENTRY_STRING_ARRAY("mount-matrix", acer_b1_750_mount_matrix),
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{ }
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};
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static const struct software_node acer_b1_750_bma250e_node = {
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.properties = acer_b1_750_bma250e_props,
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};
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static const struct x86_i2c_client_info acer_b1_750_i2c_clients[] __initconst = {
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{
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/* Novatek NVT-ts touchscreen */
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.board_info = {
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.type = "NVT-ts",
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.addr = 0x34,
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.dev_name = "NVT-ts",
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},
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.adapter_path = "\\_SB_.I2C4",
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.irq_data = {
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.type = X86_ACPI_IRQ_TYPE_GPIOINT,
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.chip = "INT33FC:02",
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.index = 3,
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.trigger = ACPI_EDGE_SENSITIVE,
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.polarity = ACPI_ACTIVE_LOW,
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},
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}, {
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/* BMA250E accelerometer */
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.board_info = {
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.type = "bma250e",
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.addr = 0x18,
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.swnode = &acer_b1_750_bma250e_node,
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},
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.adapter_path = "\\_SB_.I2C3",
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.irq_data = {
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.type = X86_ACPI_IRQ_TYPE_GPIOINT,
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.chip = "INT33FC:02",
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.index = 25,
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.trigger = ACPI_LEVEL_SENSITIVE,
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.polarity = ACPI_ACTIVE_HIGH,
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},
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},
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};
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static struct gpiod_lookup_table acer_b1_750_goodix_gpios = {
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.dev_id = "i2c-NVT-ts",
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.table = {
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GPIO_LOOKUP("INT33FC:01", 26, "reset", GPIO_ACTIVE_LOW),
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{ }
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},
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};
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static struct gpiod_lookup_table * const acer_b1_750_gpios[] = {
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&acer_b1_750_goodix_gpios,
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&int3496_reference_gpios,
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NULL
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};
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static const struct x86_dev_info acer_b1_750_info __initconst = {
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.i2c_client_info = acer_b1_750_i2c_clients,
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.i2c_client_count = ARRAY_SIZE(acer_b1_750_i2c_clients),
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.pdev_info = int3496_pdevs,
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.pdev_count = ARRAY_SIZE(int3496_pdevs),
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.gpiod_lookup_tables = acer_b1_750_gpios,
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};
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/*
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* Advantech MICA-071
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* This is a standard Windows tablet, but it has an extra "quick launch" button
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* which is not described in the ACPI tables in anyway.
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* Use the x86-android-tablets infra to create a gpio-button device for this.
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*/
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static struct gpio_keys_button advantech_mica_071_button = {
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.code = KEY_PROG1,
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/* .gpio gets filled in by advantech_mica_071_init() */
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.active_low = true,
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.desc = "prog1_key",
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.type = EV_KEY,
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.wakeup = false,
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.debounce_interval = 50,
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};
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static const struct gpio_keys_platform_data advantech_mica_071_button_pdata __initconst = {
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.buttons = &advantech_mica_071_button,
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.nbuttons = 1,
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.name = "prog1_key",
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};
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static const struct platform_device_info advantech_mica_071_pdevs[] __initconst = {
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{
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.name = "gpio-keys",
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.id = PLATFORM_DEVID_AUTO,
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.data = &advantech_mica_071_button_pdata,
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.size_data = sizeof(advantech_mica_071_button_pdata),
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},
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};
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static int __init advantech_mica_071_init(void)
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{
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struct gpio_desc *gpiod;
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int ret;
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ret = x86_android_tablet_get_gpiod("INT33FC:00", 2, &gpiod);
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if (ret < 0)
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return ret;
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advantech_mica_071_button.gpio = desc_to_gpio(gpiod);
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return 0;
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}
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static const struct x86_dev_info advantech_mica_071_info __initconst = {
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.pdev_info = advantech_mica_071_pdevs,
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.pdev_count = ARRAY_SIZE(advantech_mica_071_pdevs),
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.init = advantech_mica_071_init,
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};
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/* Asus ME176C and TF103C tablets shared data */
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static struct gpio_keys_button asus_me176c_tf103c_lid = {
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.code = SW_LID,
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/* .gpio gets filled in by asus_me176c_tf103c_init() */
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.active_low = true,
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.desc = "lid_sw",
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.type = EV_SW,
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.wakeup = true,
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.debounce_interval = 50,
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};
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static const struct gpio_keys_platform_data asus_me176c_tf103c_lid_pdata __initconst = {
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.buttons = &asus_me176c_tf103c_lid,
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.nbuttons = 1,
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.name = "lid_sw",
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};
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static const struct platform_device_info asus_me176c_tf103c_pdevs[] __initconst = {
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{
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.name = "gpio-keys",
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.id = PLATFORM_DEVID_AUTO,
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.data = &asus_me176c_tf103c_lid_pdata,
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.size_data = sizeof(asus_me176c_tf103c_lid_pdata),
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},
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{
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/* For micro USB ID pin handling */
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.name = "intel-int3496",
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.id = PLATFORM_DEVID_NONE,
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},
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};
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static int __init asus_me176c_tf103c_init(void)
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{
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struct gpio_desc *gpiod;
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int ret;
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ret = x86_android_tablet_get_gpiod("INT33FC:02", 12, &gpiod);
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if (ret < 0)
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return ret;
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asus_me176c_tf103c_lid.gpio = desc_to_gpio(gpiod);
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return 0;
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}
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/* Asus ME176C tablets have an Android factory img with everything hardcoded */
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static const char * const asus_me176c_accel_mount_matrix[] = {
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"-1", "0", "0",
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"0", "1", "0",
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"0", "0", "1"
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};
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static const struct property_entry asus_me176c_accel_props[] = {
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PROPERTY_ENTRY_STRING_ARRAY("mount-matrix", asus_me176c_accel_mount_matrix),
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{ }
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};
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static const struct software_node asus_me176c_accel_node = {
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.properties = asus_me176c_accel_props,
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};
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static const struct property_entry asus_me176c_bq24190_props[] = {
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PROPERTY_ENTRY_STRING_ARRAY("supplied-from", tusb1211_chg_det_psy),
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PROPERTY_ENTRY_REF("monitored-battery", &generic_lipo_hv_4v35_battery_node),
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PROPERTY_ENTRY_U32("ti,system-minimum-microvolt", 3600000),
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PROPERTY_ENTRY_BOOL("omit-battery-class"),
|
|
PROPERTY_ENTRY_BOOL("disable-reset"),
|
|
{ }
|
|
};
|
|
|
|
static const struct software_node asus_me176c_bq24190_node = {
|
|
.properties = asus_me176c_bq24190_props,
|
|
};
|
|
|
|
static const struct property_entry asus_me176c_ug3105_props[] = {
|
|
PROPERTY_ENTRY_STRING_ARRAY("supplied-from", bq24190_psy),
|
|
PROPERTY_ENTRY_REF("monitored-battery", &generic_lipo_hv_4v35_battery_node),
|
|
PROPERTY_ENTRY_U32("upisemi,rsns-microohm", 10000),
|
|
{ }
|
|
};
|
|
|
|
static const struct software_node asus_me176c_ug3105_node = {
|
|
.properties = asus_me176c_ug3105_props,
|
|
};
|
|
|
|
static const struct x86_i2c_client_info asus_me176c_i2c_clients[] __initconst = {
|
|
{
|
|
/* bq24297 battery charger */
|
|
.board_info = {
|
|
.type = "bq24190",
|
|
.addr = 0x6b,
|
|
.dev_name = "bq24297",
|
|
.swnode = &asus_me176c_bq24190_node,
|
|
.platform_data = &bq24190_pdata,
|
|
},
|
|
.adapter_path = "\\_SB_.I2C1",
|
|
.irq_data = {
|
|
.type = X86_ACPI_IRQ_TYPE_PMIC,
|
|
.chip = "\\_SB_.I2C7.PMIC",
|
|
.domain = DOMAIN_BUS_WAKEUP,
|
|
.index = 0,
|
|
},
|
|
}, {
|
|
/* ug3105 battery monitor */
|
|
.board_info = {
|
|
.type = "ug3105",
|
|
.addr = 0x70,
|
|
.dev_name = "ug3105",
|
|
.swnode = &asus_me176c_ug3105_node,
|
|
},
|
|
.adapter_path = "\\_SB_.I2C1",
|
|
}, {
|
|
/* ak09911 compass */
|
|
.board_info = {
|
|
.type = "ak09911",
|
|
.addr = 0x0c,
|
|
.dev_name = "ak09911",
|
|
},
|
|
.adapter_path = "\\_SB_.I2C5",
|
|
}, {
|
|
/* kxtj21009 accel */
|
|
.board_info = {
|
|
.type = "kxtj21009",
|
|
.addr = 0x0f,
|
|
.dev_name = "kxtj21009",
|
|
.swnode = &asus_me176c_accel_node,
|
|
},
|
|
.adapter_path = "\\_SB_.I2C5",
|
|
.irq_data = {
|
|
.type = X86_ACPI_IRQ_TYPE_APIC,
|
|
.index = 0x44,
|
|
.trigger = ACPI_EDGE_SENSITIVE,
|
|
.polarity = ACPI_ACTIVE_LOW,
|
|
},
|
|
}, {
|
|
/* goodix touchscreen */
|
|
.board_info = {
|
|
.type = "GDIX1001:00",
|
|
.addr = 0x14,
|
|
.dev_name = "goodix_ts",
|
|
},
|
|
.adapter_path = "\\_SB_.I2C6",
|
|
.irq_data = {
|
|
.type = X86_ACPI_IRQ_TYPE_APIC,
|
|
.index = 0x45,
|
|
.trigger = ACPI_EDGE_SENSITIVE,
|
|
.polarity = ACPI_ACTIVE_LOW,
|
|
},
|
|
},
|
|
};
|
|
|
|
static const struct x86_serdev_info asus_me176c_serdevs[] __initconst = {
|
|
{
|
|
.ctrl_hid = "80860F0A",
|
|
.ctrl_uid = "2",
|
|
.ctrl_devname = "serial0",
|
|
.serdev_hid = "BCM2E3A",
|
|
},
|
|
};
|
|
|
|
static struct gpiod_lookup_table asus_me176c_goodix_gpios = {
|
|
.dev_id = "i2c-goodix_ts",
|
|
.table = {
|
|
GPIO_LOOKUP("INT33FC:00", 60, "reset", GPIO_ACTIVE_HIGH),
|
|
GPIO_LOOKUP("INT33FC:02", 28, "irq", GPIO_ACTIVE_HIGH),
|
|
{ }
|
|
},
|
|
};
|
|
|
|
static struct gpiod_lookup_table * const asus_me176c_gpios[] = {
|
|
&int3496_gpo2_pin22_gpios,
|
|
&asus_me176c_goodix_gpios,
|
|
NULL
|
|
};
|
|
|
|
static const struct x86_dev_info asus_me176c_info __initconst = {
|
|
.i2c_client_info = asus_me176c_i2c_clients,
|
|
.i2c_client_count = ARRAY_SIZE(asus_me176c_i2c_clients),
|
|
.pdev_info = asus_me176c_tf103c_pdevs,
|
|
.pdev_count = ARRAY_SIZE(asus_me176c_tf103c_pdevs),
|
|
.serdev_info = asus_me176c_serdevs,
|
|
.serdev_count = ARRAY_SIZE(asus_me176c_serdevs),
|
|
.gpiod_lookup_tables = asus_me176c_gpios,
|
|
.bat_swnode = &generic_lipo_hv_4v35_battery_node,
|
|
.modules = bq24190_modules,
|
|
.invalid_aei_gpiochip = "INT33FC:02",
|
|
.init = asus_me176c_tf103c_init,
|
|
};
|
|
|
|
/* Asus TF103C tablets have an Android factory img with everything hardcoded */
|
|
static const char * const asus_tf103c_accel_mount_matrix[] = {
|
|
"0", "-1", "0",
|
|
"-1", "0", "0",
|
|
"0", "0", "1"
|
|
};
|
|
|
|
static const struct property_entry asus_tf103c_accel_props[] = {
|
|
PROPERTY_ENTRY_STRING_ARRAY("mount-matrix", asus_tf103c_accel_mount_matrix),
|
|
{ }
|
|
};
|
|
|
|
static const struct software_node asus_tf103c_accel_node = {
|
|
.properties = asus_tf103c_accel_props,
|
|
};
|
|
|
|
static const struct property_entry asus_tf103c_touchscreen_props[] = {
|
|
PROPERTY_ENTRY_STRING("compatible", "atmel,atmel_mxt_ts"),
|
|
{ }
|
|
};
|
|
|
|
static const struct software_node asus_tf103c_touchscreen_node = {
|
|
.properties = asus_tf103c_touchscreen_props,
|
|
};
|
|
|
|
static const struct property_entry asus_tf103c_battery_props[] = {
|
|
PROPERTY_ENTRY_STRING("compatible", "simple-battery"),
|
|
PROPERTY_ENTRY_STRING("device-chemistry", "lithium-ion-polymer"),
|
|
PROPERTY_ENTRY_U32("precharge-current-microamp", 256000),
|
|
PROPERTY_ENTRY_U32("charge-term-current-microamp", 128000),
|
|
PROPERTY_ENTRY_U32("constant-charge-current-max-microamp", 2048000),
|
|
PROPERTY_ENTRY_U32("constant-charge-voltage-max-microvolt", 4208000),
|
|
PROPERTY_ENTRY_U32("factory-internal-resistance-micro-ohms", 150000),
|
|
{ }
|
|
};
|
|
|
|
static const struct software_node asus_tf103c_battery_node = {
|
|
.properties = asus_tf103c_battery_props,
|
|
};
|
|
|
|
static const struct property_entry asus_tf103c_bq24190_props[] = {
|
|
PROPERTY_ENTRY_STRING_ARRAY("supplied-from", tusb1211_chg_det_psy),
|
|
PROPERTY_ENTRY_REF("monitored-battery", &asus_tf103c_battery_node),
|
|
PROPERTY_ENTRY_U32("ti,system-minimum-microvolt", 3600000),
|
|
PROPERTY_ENTRY_BOOL("omit-battery-class"),
|
|
PROPERTY_ENTRY_BOOL("disable-reset"),
|
|
{ }
|
|
};
|
|
|
|
static const struct software_node asus_tf103c_bq24190_node = {
|
|
.properties = asus_tf103c_bq24190_props,
|
|
};
|
|
|
|
static const struct property_entry asus_tf103c_ug3105_props[] = {
|
|
PROPERTY_ENTRY_STRING_ARRAY("supplied-from", bq24190_psy),
|
|
PROPERTY_ENTRY_REF("monitored-battery", &asus_tf103c_battery_node),
|
|
PROPERTY_ENTRY_U32("upisemi,rsns-microohm", 5000),
|
|
{ }
|
|
};
|
|
|
|
static const struct software_node asus_tf103c_ug3105_node = {
|
|
.properties = asus_tf103c_ug3105_props,
|
|
};
|
|
|
|
static const struct x86_i2c_client_info asus_tf103c_i2c_clients[] __initconst = {
|
|
{
|
|
/* bq24297 battery charger */
|
|
.board_info = {
|
|
.type = "bq24190",
|
|
.addr = 0x6b,
|
|
.dev_name = "bq24297",
|
|
.swnode = &asus_tf103c_bq24190_node,
|
|
.platform_data = &bq24190_pdata,
|
|
},
|
|
.adapter_path = "\\_SB_.I2C1",
|
|
.irq_data = {
|
|
.type = X86_ACPI_IRQ_TYPE_PMIC,
|
|
.chip = "\\_SB_.I2C7.PMIC",
|
|
.domain = DOMAIN_BUS_WAKEUP,
|
|
.index = 0,
|
|
},
|
|
}, {
|
|
/* ug3105 battery monitor */
|
|
.board_info = {
|
|
.type = "ug3105",
|
|
.addr = 0x70,
|
|
.dev_name = "ug3105",
|
|
.swnode = &asus_tf103c_ug3105_node,
|
|
},
|
|
.adapter_path = "\\_SB_.I2C1",
|
|
}, {
|
|
/* ak09911 compass */
|
|
.board_info = {
|
|
.type = "ak09911",
|
|
.addr = 0x0c,
|
|
.dev_name = "ak09911",
|
|
},
|
|
.adapter_path = "\\_SB_.I2C5",
|
|
}, {
|
|
/* kxtj21009 accel */
|
|
.board_info = {
|
|
.type = "kxtj21009",
|
|
.addr = 0x0f,
|
|
.dev_name = "kxtj21009",
|
|
.swnode = &asus_tf103c_accel_node,
|
|
},
|
|
.adapter_path = "\\_SB_.I2C5",
|
|
}, {
|
|
/* atmel touchscreen */
|
|
.board_info = {
|
|
.type = "atmel_mxt_ts",
|
|
.addr = 0x4a,
|
|
.dev_name = "atmel_mxt_ts",
|
|
.swnode = &asus_tf103c_touchscreen_node,
|
|
},
|
|
.adapter_path = "\\_SB_.I2C6",
|
|
.irq_data = {
|
|
.type = X86_ACPI_IRQ_TYPE_GPIOINT,
|
|
.chip = "INT33FC:02",
|
|
.index = 28,
|
|
.trigger = ACPI_EDGE_SENSITIVE,
|
|
.polarity = ACPI_ACTIVE_LOW,
|
|
},
|
|
},
|
|
};
|
|
|
|
static struct gpiod_lookup_table * const asus_tf103c_gpios[] = {
|
|
&int3496_gpo2_pin22_gpios,
|
|
NULL
|
|
};
|
|
|
|
static const struct x86_dev_info asus_tf103c_info __initconst = {
|
|
.i2c_client_info = asus_tf103c_i2c_clients,
|
|
.i2c_client_count = ARRAY_SIZE(asus_tf103c_i2c_clients),
|
|
.pdev_info = asus_me176c_tf103c_pdevs,
|
|
.pdev_count = ARRAY_SIZE(asus_me176c_tf103c_pdevs),
|
|
.gpiod_lookup_tables = asus_tf103c_gpios,
|
|
.bat_swnode = &asus_tf103c_battery_node,
|
|
.modules = bq24190_modules,
|
|
.invalid_aei_gpiochip = "INT33FC:02",
|
|
.init = asus_me176c_tf103c_init,
|
|
};
|
|
|
|
/*
|
|
* When booted with the BIOS set to Android mode the Chuwi Hi8 (CWI509) DSDT
|
|
* contains a whole bunch of bogus ACPI I2C devices and is missing entries
|
|
* for the touchscreen and the accelerometer.
|
|
*/
|
|
static const struct property_entry chuwi_hi8_gsl1680_props[] = {
|
|
PROPERTY_ENTRY_U32("touchscreen-size-x", 1665),
|
|
PROPERTY_ENTRY_U32("touchscreen-size-y", 1140),
|
|
PROPERTY_ENTRY_BOOL("touchscreen-swapped-x-y"),
|
|
PROPERTY_ENTRY_BOOL("silead,home-button"),
|
|
PROPERTY_ENTRY_STRING("firmware-name", "gsl1680-chuwi-hi8.fw"),
|
|
{ }
|
|
};
|
|
|
|
static const struct software_node chuwi_hi8_gsl1680_node = {
|
|
.properties = chuwi_hi8_gsl1680_props,
|
|
};
|
|
|
|
static const char * const chuwi_hi8_mount_matrix[] = {
|
|
"1", "0", "0",
|
|
"0", "-1", "0",
|
|
"0", "0", "1"
|
|
};
|
|
|
|
static const struct property_entry chuwi_hi8_bma250e_props[] = {
|
|
PROPERTY_ENTRY_STRING_ARRAY("mount-matrix", chuwi_hi8_mount_matrix),
|
|
{ }
|
|
};
|
|
|
|
static const struct software_node chuwi_hi8_bma250e_node = {
|
|
.properties = chuwi_hi8_bma250e_props,
|
|
};
|
|
|
|
static const struct x86_i2c_client_info chuwi_hi8_i2c_clients[] __initconst = {
|
|
{
|
|
/* Silead touchscreen */
|
|
.board_info = {
|
|
.type = "gsl1680",
|
|
.addr = 0x40,
|
|
.swnode = &chuwi_hi8_gsl1680_node,
|
|
},
|
|
.adapter_path = "\\_SB_.I2C4",
|
|
.irq_data = {
|
|
.type = X86_ACPI_IRQ_TYPE_APIC,
|
|
.index = 0x44,
|
|
.trigger = ACPI_EDGE_SENSITIVE,
|
|
.polarity = ACPI_ACTIVE_HIGH,
|
|
},
|
|
}, {
|
|
/* BMA250E accelerometer */
|
|
.board_info = {
|
|
.type = "bma250e",
|
|
.addr = 0x18,
|
|
.swnode = &chuwi_hi8_bma250e_node,
|
|
},
|
|
.adapter_path = "\\_SB_.I2C3",
|
|
.irq_data = {
|
|
.type = X86_ACPI_IRQ_TYPE_GPIOINT,
|
|
.chip = "INT33FC:02",
|
|
.index = 23,
|
|
.trigger = ACPI_LEVEL_SENSITIVE,
|
|
.polarity = ACPI_ACTIVE_HIGH,
|
|
},
|
|
},
|
|
};
|
|
|
|
static int __init chuwi_hi8_init(void)
|
|
{
|
|
/*
|
|
* Avoid the acpi_unregister_gsi() call in x86_acpi_irq_helper_get()
|
|
* breaking the touchscreen + logging various errors when the Windows
|
|
* BIOS is used.
|
|
*/
|
|
if (acpi_dev_present("MSSL0001", NULL, 1))
|
|
return -ENODEV;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct x86_dev_info chuwi_hi8_info __initconst = {
|
|
.i2c_client_info = chuwi_hi8_i2c_clients,
|
|
.i2c_client_count = ARRAY_SIZE(chuwi_hi8_i2c_clients),
|
|
.init = chuwi_hi8_init,
|
|
};
|
|
|
|
#define CZC_EC_EXTRA_PORT 0x68
|
|
#define CZC_EC_ANDROID_KEYS 0x63
|
|
|
|
static int __init czc_p10t_init(void)
|
|
{
|
|
/*
|
|
* The device boots up in "Windows 7" mode, when the home button sends a
|
|
* Windows specific key sequence (Left Meta + D) and the second button
|
|
* sends an unknown one while also toggling the Radio Kill Switch.
|
|
* This is a surprising behavior when the second button is labeled "Back".
|
|
*
|
|
* The vendor-supplied Android-x86 build switches the device to a "Android"
|
|
* mode by writing value 0x63 to the I/O port 0x68. This just seems to just
|
|
* set bit 6 on address 0x96 in the EC region; switching the bit directly
|
|
* seems to achieve the same result. It uses a "p10t_switcher" to do the
|
|
* job. It doesn't seem to be able to do anything else, and no other use
|
|
* of the port 0x68 is known.
|
|
*
|
|
* In the Android mode, the home button sends just a single scancode,
|
|
* which can be handled in Linux userspace more reasonably and the back
|
|
* button only sends a scancode without toggling the kill switch.
|
|
* The scancode can then be mapped either to Back or RF Kill functionality
|
|
* in userspace, depending on how the button is labeled on that particular
|
|
* model.
|
|
*/
|
|
outb(CZC_EC_ANDROID_KEYS, CZC_EC_EXTRA_PORT);
|
|
return 0;
|
|
}
|
|
|
|
static const struct x86_dev_info czc_p10t __initconst = {
|
|
.init = czc_p10t_init,
|
|
};
|
|
|
|
/* Lenovo Yoga Book X90F / X91F / X91L need manual instantiation of the fg client */
|
|
static const struct x86_i2c_client_info lenovo_yogabook_x9x_i2c_clients[] __initconst = {
|
|
{
|
|
/* BQ27542 fuel-gauge */
|
|
.board_info = {
|
|
.type = "bq27542",
|
|
.addr = 0x55,
|
|
.dev_name = "bq27542",
|
|
.swnode = &fg_bq25890_supply_node,
|
|
},
|
|
.adapter_path = "\\_SB_.PCI0.I2C1",
|
|
},
|
|
};
|
|
|
|
static const struct x86_dev_info lenovo_yogabook_x9x_info __initconst = {
|
|
.i2c_client_info = lenovo_yogabook_x9x_i2c_clients,
|
|
.i2c_client_count = ARRAY_SIZE(lenovo_yogabook_x9x_i2c_clients),
|
|
};
|
|
|
|
/* Lenovo Yoga Tablet 2 1050F/L's Android factory img has everything hardcoded */
|
|
static const struct property_entry lenovo_yoga_tab2_830_1050_bq24190_props[] = {
|
|
PROPERTY_ENTRY_STRING_ARRAY("supplied-from", tusb1211_chg_det_psy),
|
|
PROPERTY_ENTRY_REF("monitored-battery", &generic_lipo_hv_4v35_battery_node),
|
|
PROPERTY_ENTRY_BOOL("omit-battery-class"),
|
|
PROPERTY_ENTRY_BOOL("disable-reset"),
|
|
{ }
|
|
};
|
|
|
|
static const struct software_node lenovo_yoga_tab2_830_1050_bq24190_node = {
|
|
.properties = lenovo_yoga_tab2_830_1050_bq24190_props,
|
|
};
|
|
|
|
/* This gets filled by lenovo_yoga_tab2_830_1050_init() */
|
|
static struct rmi_device_platform_data lenovo_yoga_tab2_830_1050_rmi_pdata = { };
|
|
|
|
static struct lp855x_platform_data lenovo_yoga_tab2_830_1050_lp8557_pdata = {
|
|
.device_control = 0x86,
|
|
.initial_brightness = 128,
|
|
};
|
|
|
|
static const struct x86_i2c_client_info lenovo_yoga_tab2_830_1050_i2c_clients[] __initconst = {
|
|
{
|
|
/* bq24292i battery charger */
|
|
.board_info = {
|
|
.type = "bq24190",
|
|
.addr = 0x6b,
|
|
.dev_name = "bq24292i",
|
|
.swnode = &lenovo_yoga_tab2_830_1050_bq24190_node,
|
|
.platform_data = &bq24190_pdata,
|
|
},
|
|
.adapter_path = "\\_SB_.I2C1",
|
|
.irq_data = {
|
|
.type = X86_ACPI_IRQ_TYPE_GPIOINT,
|
|
.chip = "INT33FC:02",
|
|
.index = 2,
|
|
.trigger = ACPI_EDGE_SENSITIVE,
|
|
.polarity = ACPI_ACTIVE_HIGH,
|
|
},
|
|
}, {
|
|
/* BQ27541 fuel-gauge */
|
|
.board_info = {
|
|
.type = "bq27541",
|
|
.addr = 0x55,
|
|
.dev_name = "bq27541",
|
|
.swnode = &fg_bq24190_supply_node,
|
|
},
|
|
.adapter_path = "\\_SB_.I2C1",
|
|
}, {
|
|
/* Synaptics RMI touchscreen */
|
|
.board_info = {
|
|
.type = "rmi4_i2c",
|
|
.addr = 0x38,
|
|
.dev_name = "rmi4_i2c",
|
|
.platform_data = &lenovo_yoga_tab2_830_1050_rmi_pdata,
|
|
},
|
|
.adapter_path = "\\_SB_.I2C6",
|
|
.irq_data = {
|
|
.type = X86_ACPI_IRQ_TYPE_APIC,
|
|
.index = 0x45,
|
|
.trigger = ACPI_EDGE_SENSITIVE,
|
|
.polarity = ACPI_ACTIVE_HIGH,
|
|
},
|
|
}, {
|
|
/* LP8557 Backlight controller */
|
|
.board_info = {
|
|
.type = "lp8557",
|
|
.addr = 0x2c,
|
|
.dev_name = "lp8557",
|
|
.platform_data = &lenovo_yoga_tab2_830_1050_lp8557_pdata,
|
|
},
|
|
.adapter_path = "\\_SB_.I2C3",
|
|
},
|
|
};
|
|
|
|
static struct gpiod_lookup_table lenovo_yoga_tab2_830_1050_int3496_gpios = {
|
|
.dev_id = "intel-int3496",
|
|
.table = {
|
|
GPIO_LOOKUP("INT33FC:02", 1, "mux", GPIO_ACTIVE_LOW),
|
|
GPIO_LOOKUP("INT33FC:02", 24, "id", GPIO_ACTIVE_HIGH),
|
|
{ }
|
|
},
|
|
};
|
|
|
|
#define LENOVO_YOGA_TAB2_830_1050_CODEC_NAME "spi-10WM5102:00"
|
|
|
|
static struct gpiod_lookup_table lenovo_yoga_tab2_830_1050_codec_gpios = {
|
|
.dev_id = LENOVO_YOGA_TAB2_830_1050_CODEC_NAME,
|
|
.table = {
|
|
GPIO_LOOKUP("gpio_crystalcove", 3, "reset", GPIO_ACTIVE_HIGH),
|
|
GPIO_LOOKUP("INT33FC:01", 23, "wlf,ldoena", GPIO_ACTIVE_HIGH),
|
|
GPIO_LOOKUP("arizona", 2, "wlf,spkvdd-ena", GPIO_ACTIVE_HIGH),
|
|
GPIO_LOOKUP("arizona", 4, "wlf,micd-pol", GPIO_ACTIVE_LOW),
|
|
{ }
|
|
},
|
|
};
|
|
|
|
static struct gpiod_lookup_table * const lenovo_yoga_tab2_830_1050_gpios[] = {
|
|
&lenovo_yoga_tab2_830_1050_int3496_gpios,
|
|
&lenovo_yoga_tab2_830_1050_codec_gpios,
|
|
NULL
|
|
};
|
|
|
|
static int __init lenovo_yoga_tab2_830_1050_init(void);
|
|
static void lenovo_yoga_tab2_830_1050_exit(void);
|
|
|
|
static struct x86_dev_info lenovo_yoga_tab2_830_1050_info __initdata = {
|
|
.i2c_client_info = lenovo_yoga_tab2_830_1050_i2c_clients,
|
|
/* i2c_client_count gets set by lenovo_yoga_tab2_830_1050_init() */
|
|
.pdev_info = int3496_pdevs,
|
|
.pdev_count = ARRAY_SIZE(int3496_pdevs),
|
|
.gpiod_lookup_tables = lenovo_yoga_tab2_830_1050_gpios,
|
|
.bat_swnode = &generic_lipo_hv_4v35_battery_node,
|
|
.modules = bq24190_modules,
|
|
.invalid_aei_gpiochip = "INT33FC:02",
|
|
.init = lenovo_yoga_tab2_830_1050_init,
|
|
.exit = lenovo_yoga_tab2_830_1050_exit,
|
|
};
|
|
|
|
/*
|
|
* The Lenovo Yoga Tablet 2 830 and 1050 (8" vs 10") versions use the same
|
|
* mainboard, but they need some different treatment related to the display:
|
|
* 1. The 830 uses a portrait LCD panel with a landscape touchscreen, requiring
|
|
* the touchscreen driver to adjust the touch-coords to match the LCD.
|
|
* 2. Both use an TI LP8557 LED backlight controller. On the 1050 the LP8557's
|
|
* PWM input is connected to the PMIC's PWM output and everything works fine
|
|
* with the defaults programmed into the LP8557 by the BIOS.
|
|
* But on the 830 the LP8557's PWM input is connected to a PWM output coming
|
|
* from the LCD panel's controller. The Android code has a hack in the i915
|
|
* driver to write the non-standard DSI reg 0x9f with the desired backlight
|
|
* level to set the duty-cycle of the LCD's PWM output.
|
|
*
|
|
* To avoid having to have a similar hack in the mainline kernel the LP8557
|
|
* entry in lenovo_yoga_tab2_830_1050_i2c_clients instead just programs the
|
|
* LP8557 to directly set the level, ignoring the PWM input. This means that
|
|
* the LP8557 i2c_client should only be instantiated on the 830.
|
|
*/
|
|
static int __init lenovo_yoga_tab2_830_1050_init_display(void)
|
|
{
|
|
struct gpio_desc *gpiod;
|
|
int ret;
|
|
|
|
/* Use PMIC GPIO 10 bootstrap pin to differentiate 830 vs 1050 */
|
|
ret = x86_android_tablet_get_gpiod("gpio_crystalcove", 10, &gpiod);
|
|
if (ret)
|
|
return ret;
|
|
|
|
ret = gpiod_get_value_cansleep(gpiod);
|
|
if (ret) {
|
|
pr_info("detected Lenovo Yoga Tablet 2 1050F/L\n");
|
|
lenovo_yoga_tab2_830_1050_info.i2c_client_count =
|
|
ARRAY_SIZE(lenovo_yoga_tab2_830_1050_i2c_clients) - 1;
|
|
} else {
|
|
pr_info("detected Lenovo Yoga Tablet 2 830F/L\n");
|
|
lenovo_yoga_tab2_830_1050_rmi_pdata.sensor_pdata.axis_align.swap_axes = true;
|
|
lenovo_yoga_tab2_830_1050_rmi_pdata.sensor_pdata.axis_align.flip_y = true;
|
|
lenovo_yoga_tab2_830_1050_info.i2c_client_count =
|
|
ARRAY_SIZE(lenovo_yoga_tab2_830_1050_i2c_clients);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* SUS (INT33FC:02) pin 6 needs to be configured as pmu_clk for the audio codec */
|
|
static const struct pinctrl_map lenovo_yoga_tab2_830_1050_codec_pinctrl_map =
|
|
PIN_MAP_MUX_GROUP(LENOVO_YOGA_TAB2_830_1050_CODEC_NAME, "codec_32khz_clk",
|
|
"INT33FC:02", "pmu_clk2_grp", "pmu_clk");
|
|
|
|
static struct pinctrl *lenovo_yoga_tab2_830_1050_codec_pinctrl;
|
|
static struct sys_off_handler *lenovo_yoga_tab2_830_1050_sys_off_handler;
|
|
|
|
static int __init lenovo_yoga_tab2_830_1050_init_codec(void)
|
|
{
|
|
struct device *codec_dev;
|
|
struct pinctrl *pinctrl;
|
|
int ret;
|
|
|
|
codec_dev = bus_find_device_by_name(&spi_bus_type, NULL,
|
|
LENOVO_YOGA_TAB2_830_1050_CODEC_NAME);
|
|
if (!codec_dev) {
|
|
pr_err("error cannot find %s device\n", LENOVO_YOGA_TAB2_830_1050_CODEC_NAME);
|
|
return -ENODEV;
|
|
}
|
|
|
|
ret = pinctrl_register_mappings(&lenovo_yoga_tab2_830_1050_codec_pinctrl_map, 1);
|
|
if (ret)
|
|
goto err_put_device;
|
|
|
|
pinctrl = pinctrl_get_select(codec_dev, "codec_32khz_clk");
|
|
if (IS_ERR(pinctrl)) {
|
|
ret = dev_err_probe(codec_dev, PTR_ERR(pinctrl), "selecting codec_32khz_clk\n");
|
|
goto err_unregister_mappings;
|
|
}
|
|
|
|
/* We're done with the codec_dev now */
|
|
put_device(codec_dev);
|
|
|
|
lenovo_yoga_tab2_830_1050_codec_pinctrl = pinctrl;
|
|
return 0;
|
|
|
|
err_unregister_mappings:
|
|
pinctrl_unregister_mappings(&lenovo_yoga_tab2_830_1050_codec_pinctrl_map);
|
|
err_put_device:
|
|
put_device(codec_dev);
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* These tablet's DSDT does not set acpi_gbl_reduced_hardware, so acpi_power_off
|
|
* gets used as pm_power_off handler. This causes "poweroff" on these tablets
|
|
* to hang hard. Requiring pressing the powerbutton for 30 seconds *twice*
|
|
* followed by a normal 3 second press to recover. Avoid this by doing an EFI
|
|
* poweroff instead.
|
|
*/
|
|
static int lenovo_yoga_tab2_830_1050_power_off(struct sys_off_data *data)
|
|
{
|
|
efi.reset_system(EFI_RESET_SHUTDOWN, EFI_SUCCESS, 0, NULL);
|
|
|
|
return NOTIFY_DONE;
|
|
}
|
|
|
|
static int __init lenovo_yoga_tab2_830_1050_init(void)
|
|
{
|
|
int ret;
|
|
|
|
ret = lenovo_yoga_tab2_830_1050_init_display();
|
|
if (ret)
|
|
return ret;
|
|
|
|
ret = lenovo_yoga_tab2_830_1050_init_codec();
|
|
if (ret)
|
|
return ret;
|
|
|
|
/* SYS_OFF_PRIO_FIRMWARE + 1 so that it runs before acpi_power_off */
|
|
lenovo_yoga_tab2_830_1050_sys_off_handler =
|
|
register_sys_off_handler(SYS_OFF_MODE_POWER_OFF, SYS_OFF_PRIO_FIRMWARE + 1,
|
|
lenovo_yoga_tab2_830_1050_power_off, NULL);
|
|
if (IS_ERR(lenovo_yoga_tab2_830_1050_sys_off_handler))
|
|
return PTR_ERR(lenovo_yoga_tab2_830_1050_sys_off_handler);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void lenovo_yoga_tab2_830_1050_exit(void)
|
|
{
|
|
unregister_sys_off_handler(lenovo_yoga_tab2_830_1050_sys_off_handler);
|
|
|
|
if (lenovo_yoga_tab2_830_1050_codec_pinctrl) {
|
|
pinctrl_put(lenovo_yoga_tab2_830_1050_codec_pinctrl);
|
|
pinctrl_unregister_mappings(&lenovo_yoga_tab2_830_1050_codec_pinctrl_map);
|
|
}
|
|
}
|
|
|
|
/* Lenovo Yoga Tab 3 Pro YT3-X90F */
|
|
|
|
/*
|
|
* There are 2 batteries, with 2 bq27500 fuel-gauges and 2 bq25892 chargers,
|
|
* "bq25890-charger-1" is instantiated from: drivers/i2c/busses/i2c-cht-wc.c.
|
|
*/
|
|
static const char * const lenovo_yt3_bq25892_0_suppliers[] = { "cht_wcove_pwrsrc" };
|
|
static const char * const bq25890_1_psy[] = { "bq25890-charger-1" };
|
|
|
|
static const struct property_entry fg_bq25890_1_supply_props[] = {
|
|
PROPERTY_ENTRY_STRING_ARRAY("supplied-from", bq25890_1_psy),
|
|
{ }
|
|
};
|
|
|
|
static const struct software_node fg_bq25890_1_supply_node = {
|
|
.properties = fg_bq25890_1_supply_props,
|
|
};
|
|
|
|
/* bq25892 charger settings for the flat lipo battery behind the screen */
|
|
static const struct property_entry lenovo_yt3_bq25892_0_props[] = {
|
|
PROPERTY_ENTRY_STRING_ARRAY("supplied-from", lenovo_yt3_bq25892_0_suppliers),
|
|
PROPERTY_ENTRY_STRING("linux,power-supply-name", "bq25892-second-chrg"),
|
|
PROPERTY_ENTRY_U32("linux,iinlim-percentage", 40),
|
|
PROPERTY_ENTRY_BOOL("linux,skip-reset"),
|
|
/* Values taken from Android Factory Image */
|
|
PROPERTY_ENTRY_U32("ti,charge-current", 2048000),
|
|
PROPERTY_ENTRY_U32("ti,battery-regulation-voltage", 4352000),
|
|
PROPERTY_ENTRY_U32("ti,termination-current", 128000),
|
|
PROPERTY_ENTRY_U32("ti,precharge-current", 128000),
|
|
PROPERTY_ENTRY_U32("ti,minimum-sys-voltage", 3700000),
|
|
PROPERTY_ENTRY_U32("ti,boost-voltage", 4998000),
|
|
PROPERTY_ENTRY_U32("ti,boost-max-current", 500000),
|
|
PROPERTY_ENTRY_BOOL("ti,use-ilim-pin"),
|
|
{ }
|
|
};
|
|
|
|
static const struct software_node lenovo_yt3_bq25892_0_node = {
|
|
.properties = lenovo_yt3_bq25892_0_props,
|
|
};
|
|
|
|
static const struct x86_i2c_client_info lenovo_yt3_i2c_clients[] __initconst = {
|
|
{
|
|
/* bq27500 fuel-gauge for the flat lipo battery behind the screen */
|
|
.board_info = {
|
|
.type = "bq27500",
|
|
.addr = 0x55,
|
|
.dev_name = "bq27500_0",
|
|
.swnode = &fg_bq25890_supply_node,
|
|
},
|
|
.adapter_path = "\\_SB_.PCI0.I2C1",
|
|
}, {
|
|
/* bq25892 charger for the flat lipo battery behind the screen */
|
|
.board_info = {
|
|
.type = "bq25892",
|
|
.addr = 0x6b,
|
|
.dev_name = "bq25892_0",
|
|
.swnode = &lenovo_yt3_bq25892_0_node,
|
|
},
|
|
.adapter_path = "\\_SB_.PCI0.I2C1",
|
|
.irq_data = {
|
|
.type = X86_ACPI_IRQ_TYPE_GPIOINT,
|
|
.chip = "INT33FF:01",
|
|
.index = 5,
|
|
.trigger = ACPI_EDGE_SENSITIVE,
|
|
.polarity = ACPI_ACTIVE_LOW,
|
|
},
|
|
}, {
|
|
/* bq27500 fuel-gauge for the round li-ion cells in the hinge */
|
|
.board_info = {
|
|
.type = "bq27500",
|
|
.addr = 0x55,
|
|
.dev_name = "bq27500_1",
|
|
.swnode = &fg_bq25890_1_supply_node,
|
|
},
|
|
.adapter_path = "\\_SB_.PCI0.I2C2",
|
|
}
|
|
};
|
|
|
|
static int __init lenovo_yt3_init(void)
|
|
{
|
|
struct gpio_desc *gpiod;
|
|
int ret;
|
|
|
|
/*
|
|
* The "bq25892_0" charger IC has its /CE (Charge-Enable) and OTG pins
|
|
* connected to GPIOs, rather then having them hardwired to the correct
|
|
* values as is normally done.
|
|
*
|
|
* The bq25890_charger driver controls these through I2C, but this only
|
|
* works if not overridden by the pins. Set these pins here:
|
|
* 1. Set /CE to 0 to allow charging.
|
|
* 2. Set OTG to 0 disable V5 boost output since the 5V boost output of
|
|
* the main "bq25892_1" charger is used when necessary.
|
|
*/
|
|
|
|
/* /CE pin */
|
|
ret = x86_android_tablet_get_gpiod("INT33FF:02", 22, &gpiod);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
/*
|
|
* The gpio_desc returned by x86_android_tablet_get_gpiod() is a "raw"
|
|
* gpio_desc, that is there is no way to pass lookup-flags like
|
|
* GPIO_ACTIVE_LOW. Set the GPIO to 0 here to enable charging since
|
|
* the /CE pin is active-low, but not marked as such in the gpio_desc.
|
|
*/
|
|
gpiod_set_value(gpiod, 0);
|
|
|
|
/* OTG pin */
|
|
ret = x86_android_tablet_get_gpiod("INT33FF:03", 19, &gpiod);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
gpiod_set_value(gpiod, 0);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct x86_dev_info lenovo_yt3_info __initconst = {
|
|
.i2c_client_info = lenovo_yt3_i2c_clients,
|
|
.i2c_client_count = ARRAY_SIZE(lenovo_yt3_i2c_clients),
|
|
.init = lenovo_yt3_init,
|
|
};
|
|
|
|
/* Medion Lifetab S10346 tablets have an Android factory img with everything hardcoded */
|
|
static const char * const medion_lifetab_s10346_accel_mount_matrix[] = {
|
|
"0", "1", "0",
|
|
"1", "0", "0",
|
|
"0", "0", "1"
|
|
};
|
|
|
|
static const struct property_entry medion_lifetab_s10346_accel_props[] = {
|
|
PROPERTY_ENTRY_STRING_ARRAY("mount-matrix", medion_lifetab_s10346_accel_mount_matrix),
|
|
{ }
|
|
};
|
|
|
|
static const struct software_node medion_lifetab_s10346_accel_node = {
|
|
.properties = medion_lifetab_s10346_accel_props,
|
|
};
|
|
|
|
/* Note the LCD panel is mounted upside down, this is correctly indicated in the VBT */
|
|
static const struct property_entry medion_lifetab_s10346_touchscreen_props[] = {
|
|
PROPERTY_ENTRY_BOOL("touchscreen-inverted-x"),
|
|
PROPERTY_ENTRY_BOOL("touchscreen-swapped-x-y"),
|
|
{ }
|
|
};
|
|
|
|
static const struct software_node medion_lifetab_s10346_touchscreen_node = {
|
|
.properties = medion_lifetab_s10346_touchscreen_props,
|
|
};
|
|
|
|
static const struct x86_i2c_client_info medion_lifetab_s10346_i2c_clients[] __initconst = {
|
|
{
|
|
/* kxtj21009 accel */
|
|
.board_info = {
|
|
.type = "kxtj21009",
|
|
.addr = 0x0f,
|
|
.dev_name = "kxtj21009",
|
|
.swnode = &medion_lifetab_s10346_accel_node,
|
|
},
|
|
.adapter_path = "\\_SB_.I2C3",
|
|
.irq_data = {
|
|
.type = X86_ACPI_IRQ_TYPE_GPIOINT,
|
|
.chip = "INT33FC:02",
|
|
.index = 23,
|
|
.trigger = ACPI_EDGE_SENSITIVE,
|
|
.polarity = ACPI_ACTIVE_HIGH,
|
|
},
|
|
}, {
|
|
/* goodix touchscreen */
|
|
.board_info = {
|
|
.type = "GDIX1001:00",
|
|
.addr = 0x14,
|
|
.dev_name = "goodix_ts",
|
|
.swnode = &medion_lifetab_s10346_touchscreen_node,
|
|
},
|
|
.adapter_path = "\\_SB_.I2C4",
|
|
.irq_data = {
|
|
.type = X86_ACPI_IRQ_TYPE_APIC,
|
|
.index = 0x44,
|
|
.trigger = ACPI_EDGE_SENSITIVE,
|
|
.polarity = ACPI_ACTIVE_LOW,
|
|
},
|
|
},
|
|
};
|
|
|
|
static struct gpiod_lookup_table medion_lifetab_s10346_goodix_gpios = {
|
|
.dev_id = "i2c-goodix_ts",
|
|
.table = {
|
|
GPIO_LOOKUP("INT33FC:01", 26, "reset", GPIO_ACTIVE_HIGH),
|
|
GPIO_LOOKUP("INT33FC:02", 3, "irq", GPIO_ACTIVE_HIGH),
|
|
{ }
|
|
},
|
|
};
|
|
|
|
static struct gpiod_lookup_table * const medion_lifetab_s10346_gpios[] = {
|
|
&medion_lifetab_s10346_goodix_gpios,
|
|
NULL
|
|
};
|
|
|
|
static const struct x86_dev_info medion_lifetab_s10346_info __initconst = {
|
|
.i2c_client_info = medion_lifetab_s10346_i2c_clients,
|
|
.i2c_client_count = ARRAY_SIZE(medion_lifetab_s10346_i2c_clients),
|
|
.gpiod_lookup_tables = medion_lifetab_s10346_gpios,
|
|
};
|
|
|
|
/* Nextbook Ares 8 tablets have an Android factory img with everything hardcoded */
|
|
static const char * const nextbook_ares8_accel_mount_matrix[] = {
|
|
"0", "-1", "0",
|
|
"-1", "0", "0",
|
|
"0", "0", "1"
|
|
};
|
|
|
|
static const struct property_entry nextbook_ares8_accel_props[] = {
|
|
PROPERTY_ENTRY_STRING_ARRAY("mount-matrix", nextbook_ares8_accel_mount_matrix),
|
|
{ }
|
|
};
|
|
|
|
static const struct software_node nextbook_ares8_accel_node = {
|
|
.properties = nextbook_ares8_accel_props,
|
|
};
|
|
|
|
static const struct property_entry nextbook_ares8_touchscreen_props[] = {
|
|
PROPERTY_ENTRY_U32("touchscreen-size-x", 800),
|
|
PROPERTY_ENTRY_U32("touchscreen-size-y", 1280),
|
|
{ }
|
|
};
|
|
|
|
static const struct software_node nextbook_ares8_touchscreen_node = {
|
|
.properties = nextbook_ares8_touchscreen_props,
|
|
};
|
|
|
|
static const struct x86_i2c_client_info nextbook_ares8_i2c_clients[] __initconst = {
|
|
{
|
|
/* Freescale MMA8653FC accel */
|
|
.board_info = {
|
|
.type = "mma8653",
|
|
.addr = 0x1d,
|
|
.dev_name = "mma8653",
|
|
.swnode = &nextbook_ares8_accel_node,
|
|
},
|
|
.adapter_path = "\\_SB_.I2C3",
|
|
}, {
|
|
/* FT5416DQ9 touchscreen controller */
|
|
.board_info = {
|
|
.type = "edt-ft5x06",
|
|
.addr = 0x38,
|
|
.dev_name = "ft5416",
|
|
.swnode = &nextbook_ares8_touchscreen_node,
|
|
},
|
|
.adapter_path = "\\_SB_.I2C4",
|
|
.irq_data = {
|
|
.type = X86_ACPI_IRQ_TYPE_GPIOINT,
|
|
.chip = "INT33FC:02",
|
|
.index = 3,
|
|
.trigger = ACPI_EDGE_SENSITIVE,
|
|
.polarity = ACPI_ACTIVE_LOW,
|
|
},
|
|
},
|
|
};
|
|
|
|
static struct gpiod_lookup_table * const nextbook_ares8_gpios[] = {
|
|
&int3496_reference_gpios,
|
|
NULL
|
|
};
|
|
|
|
static const struct x86_dev_info nextbook_ares8_info __initconst = {
|
|
.i2c_client_info = nextbook_ares8_i2c_clients,
|
|
.i2c_client_count = ARRAY_SIZE(nextbook_ares8_i2c_clients),
|
|
.pdev_info = int3496_pdevs,
|
|
.pdev_count = ARRAY_SIZE(int3496_pdevs),
|
|
.gpiod_lookup_tables = nextbook_ares8_gpios,
|
|
.invalid_aei_gpiochip = "INT33FC:02",
|
|
};
|
|
|
|
/*
|
|
* Whitelabel (sold as various brands) TM800A550L tablets.
|
|
* These tablet's DSDT contains a whole bunch of bogus ACPI I2C devices
|
|
* (removed through acpi_quirk_skip_i2c_client_enumeration()) and
|
|
* the touchscreen fwnode has the wrong GPIOs.
|
|
*/
|
|
static const char * const whitelabel_tm800a550l_accel_mount_matrix[] = {
|
|
"-1", "0", "0",
|
|
"0", "1", "0",
|
|
"0", "0", "1"
|
|
};
|
|
|
|
static const struct property_entry whitelabel_tm800a550l_accel_props[] = {
|
|
PROPERTY_ENTRY_STRING_ARRAY("mount-matrix", whitelabel_tm800a550l_accel_mount_matrix),
|
|
{ }
|
|
};
|
|
|
|
static const struct software_node whitelabel_tm800a550l_accel_node = {
|
|
.properties = whitelabel_tm800a550l_accel_props,
|
|
};
|
|
|
|
static const struct property_entry whitelabel_tm800a550l_goodix_props[] = {
|
|
PROPERTY_ENTRY_STRING("firmware-name", "gt912-tm800a550l.fw"),
|
|
PROPERTY_ENTRY_STRING("goodix,config-name", "gt912-tm800a550l.cfg"),
|
|
PROPERTY_ENTRY_U32("goodix,main-clk", 54),
|
|
{ }
|
|
};
|
|
|
|
static const struct software_node whitelabel_tm800a550l_goodix_node = {
|
|
.properties = whitelabel_tm800a550l_goodix_props,
|
|
};
|
|
|
|
static const struct x86_i2c_client_info whitelabel_tm800a550l_i2c_clients[] __initconst = {
|
|
{
|
|
/* goodix touchscreen */
|
|
.board_info = {
|
|
.type = "GDIX1001:00",
|
|
.addr = 0x14,
|
|
.dev_name = "goodix_ts",
|
|
.swnode = &whitelabel_tm800a550l_goodix_node,
|
|
},
|
|
.adapter_path = "\\_SB_.I2C2",
|
|
.irq_data = {
|
|
.type = X86_ACPI_IRQ_TYPE_APIC,
|
|
.index = 0x44,
|
|
.trigger = ACPI_EDGE_SENSITIVE,
|
|
.polarity = ACPI_ACTIVE_HIGH,
|
|
},
|
|
}, {
|
|
/* kxcj91008 accel */
|
|
.board_info = {
|
|
.type = "kxcj91008",
|
|
.addr = 0x0f,
|
|
.dev_name = "kxcj91008",
|
|
.swnode = &whitelabel_tm800a550l_accel_node,
|
|
},
|
|
.adapter_path = "\\_SB_.I2C3",
|
|
},
|
|
};
|
|
|
|
static struct gpiod_lookup_table whitelabel_tm800a550l_goodix_gpios = {
|
|
.dev_id = "i2c-goodix_ts",
|
|
.table = {
|
|
GPIO_LOOKUP("INT33FC:01", 26, "reset", GPIO_ACTIVE_HIGH),
|
|
GPIO_LOOKUP("INT33FC:02", 3, "irq", GPIO_ACTIVE_HIGH),
|
|
{ }
|
|
},
|
|
};
|
|
|
|
static struct gpiod_lookup_table * const whitelabel_tm800a550l_gpios[] = {
|
|
&whitelabel_tm800a550l_goodix_gpios,
|
|
NULL
|
|
};
|
|
|
|
static const struct x86_dev_info whitelabel_tm800a550l_info __initconst = {
|
|
.i2c_client_info = whitelabel_tm800a550l_i2c_clients,
|
|
.i2c_client_count = ARRAY_SIZE(whitelabel_tm800a550l_i2c_clients),
|
|
.gpiod_lookup_tables = whitelabel_tm800a550l_gpios,
|
|
};
|
|
|
|
/*
|
|
* If the EFI bootloader is not Xiaomi's own signed Android loader, then the
|
|
* Xiaomi Mi Pad 2 X86 tablet sets OSID in the DSDT to 1 (Windows), causing
|
|
* a bunch of devices to be hidden.
|
|
*
|
|
* This takes care of instantiating the hidden devices manually.
|
|
*/
|
|
static const struct x86_i2c_client_info xiaomi_mipad2_i2c_clients[] __initconst = {
|
|
{
|
|
/* BQ27520 fuel-gauge */
|
|
.board_info = {
|
|
.type = "bq27520",
|
|
.addr = 0x55,
|
|
.dev_name = "bq27520",
|
|
.swnode = &fg_bq25890_supply_node,
|
|
},
|
|
.adapter_path = "\\_SB_.PCI0.I2C1",
|
|
}, {
|
|
/* KTD2026 RGB notification LED controller */
|
|
.board_info = {
|
|
.type = "ktd2026",
|
|
.addr = 0x30,
|
|
.dev_name = "ktd2026",
|
|
},
|
|
.adapter_path = "\\_SB_.PCI0.I2C3",
|
|
},
|
|
};
|
|
|
|
static const struct x86_dev_info xiaomi_mipad2_info __initconst = {
|
|
.i2c_client_info = xiaomi_mipad2_i2c_clients,
|
|
.i2c_client_count = ARRAY_SIZE(xiaomi_mipad2_i2c_clients),
|
|
};
|
|
|
|
static const struct dmi_system_id x86_android_tablet_ids[] __initconst = {
|
|
{
|
|
/* Acer Iconia One 7 B1-750 */
|
|
.matches = {
|
|
DMI_MATCH(DMI_SYS_VENDOR, "Insyde"),
|
|
DMI_MATCH(DMI_PRODUCT_NAME, "VESPA2"),
|
|
},
|
|
.driver_data = (void *)&acer_b1_750_info,
|
|
},
|
|
{
|
|
/* Advantech MICA-071 */
|
|
.matches = {
|
|
DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Advantech"),
|
|
DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "MICA-071"),
|
|
},
|
|
.driver_data = (void *)&advantech_mica_071_info,
|
|
},
|
|
{
|
|
/* Asus MeMO Pad 7 ME176C */
|
|
.matches = {
|
|
DMI_EXACT_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
|
|
DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "ME176C"),
|
|
},
|
|
.driver_data = (void *)&asus_me176c_info,
|
|
},
|
|
{
|
|
/* Asus TF103C */
|
|
.matches = {
|
|
DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
|
|
DMI_MATCH(DMI_PRODUCT_NAME, "TF103C"),
|
|
},
|
|
.driver_data = (void *)&asus_tf103c_info,
|
|
},
|
|
{
|
|
/* Chuwi Hi8 (CWI509) */
|
|
.matches = {
|
|
DMI_MATCH(DMI_BOARD_VENDOR, "Hampoo"),
|
|
DMI_MATCH(DMI_BOARD_NAME, "BYT-PA03C"),
|
|
DMI_MATCH(DMI_SYS_VENDOR, "ilife"),
|
|
DMI_MATCH(DMI_PRODUCT_NAME, "S806"),
|
|
},
|
|
.driver_data = (void *)&chuwi_hi8_info,
|
|
},
|
|
{
|
|
/* CZC P10T */
|
|
.ident = "CZC ODEON TPC-10 (\"P10T\")",
|
|
.matches = {
|
|
DMI_MATCH(DMI_SYS_VENDOR, "CZC"),
|
|
DMI_MATCH(DMI_PRODUCT_NAME, "ODEON*TPC-10"),
|
|
},
|
|
.driver_data = (void *)&czc_p10t,
|
|
},
|
|
{
|
|
/* CZC P10T variant */
|
|
.ident = "ViewSonic ViewPad 10",
|
|
.matches = {
|
|
DMI_MATCH(DMI_SYS_VENDOR, "ViewSonic"),
|
|
DMI_MATCH(DMI_PRODUCT_NAME, "VPAD10"),
|
|
},
|
|
.driver_data = (void *)&czc_p10t,
|
|
},
|
|
{
|
|
/* Lenovo Yoga Book X90F / X91F / X91L */
|
|
.matches = {
|
|
/* Non exact match to match all versions */
|
|
DMI_MATCH(DMI_PRODUCT_NAME, "Lenovo YB1-X9"),
|
|
},
|
|
.driver_data = (void *)&lenovo_yogabook_x9x_info,
|
|
},
|
|
{
|
|
/*
|
|
* Lenovo Yoga Tablet 2 830F/L or 1050F/L (The 8" and 10"
|
|
* Lenovo Yoga Tablet 2 use the same mainboard)
|
|
*/
|
|
.matches = {
|
|
DMI_MATCH(DMI_SYS_VENDOR, "Intel Corp."),
|
|
DMI_MATCH(DMI_PRODUCT_NAME, "VALLEYVIEW C0 PLATFORM"),
|
|
DMI_MATCH(DMI_BOARD_NAME, "BYT-T FFD8"),
|
|
/* Partial match on beginning of BIOS version */
|
|
DMI_MATCH(DMI_BIOS_VERSION, "BLADE_21"),
|
|
},
|
|
.driver_data = (void *)&lenovo_yoga_tab2_830_1050_info,
|
|
},
|
|
{
|
|
/* Lenovo Yoga Tab 3 Pro YT3-X90F */
|
|
.matches = {
|
|
DMI_MATCH(DMI_SYS_VENDOR, "Intel Corporation"),
|
|
DMI_MATCH(DMI_PRODUCT_NAME, "CHERRYVIEW D1 PLATFORM"),
|
|
DMI_MATCH(DMI_PRODUCT_VERSION, "Blade3-10A-001"),
|
|
},
|
|
.driver_data = (void *)&lenovo_yt3_info,
|
|
},
|
|
{
|
|
/* Medion Lifetab S10346 */
|
|
.matches = {
|
|
DMI_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
|
|
DMI_MATCH(DMI_BOARD_NAME, "Aptio CRB"),
|
|
/* Above strings are much too generic, also match on BIOS date */
|
|
DMI_MATCH(DMI_BIOS_DATE, "10/22/2015"),
|
|
},
|
|
.driver_data = (void *)&medion_lifetab_s10346_info,
|
|
},
|
|
{
|
|
/* Nextbook Ares 8 */
|
|
.matches = {
|
|
DMI_MATCH(DMI_SYS_VENDOR, "Insyde"),
|
|
DMI_MATCH(DMI_PRODUCT_NAME, "M890BAP"),
|
|
},
|
|
.driver_data = (void *)&nextbook_ares8_info,
|
|
},
|
|
{
|
|
/* Whitelabel (sold as various brands) TM800A550L */
|
|
.matches = {
|
|
DMI_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
|
|
DMI_MATCH(DMI_BOARD_NAME, "Aptio CRB"),
|
|
/* Above strings are too generic, also match on BIOS version */
|
|
DMI_MATCH(DMI_BIOS_VERSION, "ZY-8-BI-PX4S70VTR400-X423B-005-D"),
|
|
},
|
|
.driver_data = (void *)&whitelabel_tm800a550l_info,
|
|
},
|
|
{
|
|
/* Xiaomi Mi Pad 2 */
|
|
.matches = {
|
|
DMI_MATCH(DMI_SYS_VENDOR, "Xiaomi Inc"),
|
|
DMI_MATCH(DMI_PRODUCT_NAME, "Mipad2"),
|
|
},
|
|
.driver_data = (void *)&xiaomi_mipad2_info,
|
|
},
|
|
{ }
|
|
};
|
|
MODULE_DEVICE_TABLE(dmi, x86_android_tablet_ids);
|
|
|
|
static int i2c_client_count;
|
|
static int pdev_count;
|
|
static int serdev_count;
|
|
static struct i2c_client **i2c_clients;
|
|
static struct platform_device **pdevs;
|
|
static struct serdev_device **serdevs;
|
|
static struct gpiod_lookup_table * const *gpiod_lookup_tables;
|
|
static const struct software_node *bat_swnode;
|
|
static void (*exit_handler)(void);
|
|
|
|
static __init int x86_instantiate_i2c_client(const struct x86_dev_info *dev_info,
|
|
int idx)
|
|
{
|
|
const struct x86_i2c_client_info *client_info = &dev_info->i2c_client_info[idx];
|
|
struct i2c_board_info board_info = client_info->board_info;
|
|
struct i2c_adapter *adap;
|
|
acpi_handle handle;
|
|
acpi_status status;
|
|
|
|
board_info.irq = x86_acpi_irq_helper_get(&client_info->irq_data);
|
|
if (board_info.irq < 0)
|
|
return board_info.irq;
|
|
|
|
status = acpi_get_handle(NULL, client_info->adapter_path, &handle);
|
|
if (ACPI_FAILURE(status)) {
|
|
pr_err("Error could not get %s handle\n", client_info->adapter_path);
|
|
return -ENODEV;
|
|
}
|
|
|
|
adap = i2c_acpi_find_adapter_by_handle(handle);
|
|
if (!adap) {
|
|
pr_err("error could not get %s adapter\n", client_info->adapter_path);
|
|
return -ENODEV;
|
|
}
|
|
|
|
i2c_clients[idx] = i2c_new_client_device(adap, &board_info);
|
|
put_device(&adap->dev);
|
|
if (IS_ERR(i2c_clients[idx]))
|
|
return dev_err_probe(&adap->dev, PTR_ERR(i2c_clients[idx]),
|
|
"creating I2C-client %d\n", idx);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static __init int x86_instantiate_serdev(const struct x86_serdev_info *info, int idx)
|
|
{
|
|
struct acpi_device *ctrl_adev, *serdev_adev;
|
|
struct serdev_device *serdev;
|
|
struct device *ctrl_dev;
|
|
int ret = -ENODEV;
|
|
|
|
ctrl_adev = acpi_dev_get_first_match_dev(info->ctrl_hid, info->ctrl_uid, -1);
|
|
if (!ctrl_adev) {
|
|
pr_err("error could not get %s/%s ctrl adev\n",
|
|
info->ctrl_hid, info->ctrl_uid);
|
|
return -ENODEV;
|
|
}
|
|
|
|
serdev_adev = acpi_dev_get_first_match_dev(info->serdev_hid, NULL, -1);
|
|
if (!serdev_adev) {
|
|
pr_err("error could not get %s serdev adev\n", info->serdev_hid);
|
|
goto put_ctrl_adev;
|
|
}
|
|
|
|
/* get_first_physical_node() returns a weak ref, no need to put() it */
|
|
ctrl_dev = acpi_get_first_physical_node(ctrl_adev);
|
|
if (!ctrl_dev) {
|
|
pr_err("error could not get %s/%s ctrl physical dev\n",
|
|
info->ctrl_hid, info->ctrl_uid);
|
|
goto put_serdev_adev;
|
|
}
|
|
|
|
/* ctrl_dev now points to the controller's parent, get the controller */
|
|
ctrl_dev = device_find_child_by_name(ctrl_dev, info->ctrl_devname);
|
|
if (!ctrl_dev) {
|
|
pr_err("error could not get %s/%s %s ctrl dev\n",
|
|
info->ctrl_hid, info->ctrl_uid, info->ctrl_devname);
|
|
goto put_serdev_adev;
|
|
}
|
|
|
|
serdev = serdev_device_alloc(to_serdev_controller(ctrl_dev));
|
|
if (!serdev) {
|
|
ret = -ENOMEM;
|
|
goto put_serdev_adev;
|
|
}
|
|
|
|
ACPI_COMPANION_SET(&serdev->dev, serdev_adev);
|
|
acpi_device_set_enumerated(serdev_adev);
|
|
|
|
ret = serdev_device_add(serdev);
|
|
if (ret) {
|
|
dev_err(&serdev->dev, "error %d adding serdev\n", ret);
|
|
serdev_device_put(serdev);
|
|
goto put_serdev_adev;
|
|
}
|
|
|
|
serdevs[idx] = serdev;
|
|
|
|
put_serdev_adev:
|
|
acpi_dev_put(serdev_adev);
|
|
put_ctrl_adev:
|
|
acpi_dev_put(ctrl_adev);
|
|
return ret;
|
|
}
|
|
|
|
static void x86_android_tablet_cleanup(void)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < serdev_count; i++) {
|
|
if (serdevs[i])
|
|
serdev_device_remove(serdevs[i]);
|
|
}
|
|
|
|
kfree(serdevs);
|
|
|
|
for (i = 0; i < pdev_count; i++)
|
|
platform_device_unregister(pdevs[i]);
|
|
|
|
kfree(pdevs);
|
|
|
|
for (i = 0; i < i2c_client_count; i++)
|
|
i2c_unregister_device(i2c_clients[i]);
|
|
|
|
kfree(i2c_clients);
|
|
|
|
if (exit_handler)
|
|
exit_handler();
|
|
|
|
for (i = 0; gpiod_lookup_tables && gpiod_lookup_tables[i]; i++)
|
|
gpiod_remove_lookup_table(gpiod_lookup_tables[i]);
|
|
|
|
software_node_unregister(bat_swnode);
|
|
}
|
|
|
|
static __init int x86_android_tablet_init(void)
|
|
{
|
|
const struct x86_dev_info *dev_info;
|
|
const struct dmi_system_id *id;
|
|
struct gpio_chip *chip;
|
|
int i, ret = 0;
|
|
|
|
id = dmi_first_match(x86_android_tablet_ids);
|
|
if (!id)
|
|
return -ENODEV;
|
|
|
|
dev_info = id->driver_data;
|
|
|
|
/*
|
|
* The broken DSDTs on these devices often also include broken
|
|
* _AEI (ACPI Event Interrupt) handlers, disable these.
|
|
*/
|
|
if (dev_info->invalid_aei_gpiochip) {
|
|
chip = gpiochip_find(dev_info->invalid_aei_gpiochip,
|
|
gpiochip_find_match_label);
|
|
if (!chip) {
|
|
pr_err("error cannot find GPIO chip %s\n", dev_info->invalid_aei_gpiochip);
|
|
return -ENODEV;
|
|
}
|
|
acpi_gpiochip_free_interrupts(chip);
|
|
}
|
|
|
|
/*
|
|
* Since this runs from module_init() it cannot use -EPROBE_DEFER,
|
|
* instead pre-load any modules which are listed as requirements.
|
|
*/
|
|
for (i = 0; dev_info->modules && dev_info->modules[i]; i++)
|
|
request_module(dev_info->modules[i]);
|
|
|
|
bat_swnode = dev_info->bat_swnode;
|
|
if (bat_swnode) {
|
|
ret = software_node_register(bat_swnode);
|
|
if (ret)
|
|
return ret;
|
|
}
|
|
|
|
gpiod_lookup_tables = dev_info->gpiod_lookup_tables;
|
|
for (i = 0; gpiod_lookup_tables && gpiod_lookup_tables[i]; i++)
|
|
gpiod_add_lookup_table(gpiod_lookup_tables[i]);
|
|
|
|
if (dev_info->init) {
|
|
ret = dev_info->init();
|
|
if (ret < 0) {
|
|
x86_android_tablet_cleanup();
|
|
return ret;
|
|
}
|
|
exit_handler = dev_info->exit;
|
|
}
|
|
|
|
i2c_clients = kcalloc(dev_info->i2c_client_count, sizeof(*i2c_clients), GFP_KERNEL);
|
|
if (!i2c_clients) {
|
|
x86_android_tablet_cleanup();
|
|
return -ENOMEM;
|
|
}
|
|
|
|
i2c_client_count = dev_info->i2c_client_count;
|
|
for (i = 0; i < i2c_client_count; i++) {
|
|
ret = x86_instantiate_i2c_client(dev_info, i);
|
|
if (ret < 0) {
|
|
x86_android_tablet_cleanup();
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
pdevs = kcalloc(dev_info->pdev_count, sizeof(*pdevs), GFP_KERNEL);
|
|
if (!pdevs) {
|
|
x86_android_tablet_cleanup();
|
|
return -ENOMEM;
|
|
}
|
|
|
|
pdev_count = dev_info->pdev_count;
|
|
for (i = 0; i < pdev_count; i++) {
|
|
pdevs[i] = platform_device_register_full(&dev_info->pdev_info[i]);
|
|
if (IS_ERR(pdevs[i])) {
|
|
x86_android_tablet_cleanup();
|
|
return PTR_ERR(pdevs[i]);
|
|
}
|
|
}
|
|
|
|
serdevs = kcalloc(dev_info->serdev_count, sizeof(*serdevs), GFP_KERNEL);
|
|
if (!serdevs) {
|
|
x86_android_tablet_cleanup();
|
|
return -ENOMEM;
|
|
}
|
|
|
|
serdev_count = dev_info->serdev_count;
|
|
for (i = 0; i < serdev_count; i++) {
|
|
ret = x86_instantiate_serdev(&dev_info->serdev_info[i], i);
|
|
if (ret < 0) {
|
|
x86_android_tablet_cleanup();
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
module_init(x86_android_tablet_init);
|
|
module_exit(x86_android_tablet_cleanup);
|
|
|
|
MODULE_AUTHOR("Hans de Goede <hdegoede@redhat.com>");
|
|
MODULE_DESCRIPTION("X86 Android tablets DSDT fixups driver");
|
|
MODULE_LICENSE("GPL");
|