c69fec50ec
The Lenovo Yoga Book X90F/L is a x86 ACPI tablet which ships with Android x86 as factory OS. Its DSDT contains a bunch of I2C devices which are not actually there, causing various resource conflicts. Enumeration of these is skipped through the acpi_quirk_skip_i2c_client_enumeration(). Add support for manually instantiating the I2C + other devices which are actually present on this tablet by adding the necessary device info to the x86-android-tablets module. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Link: https://lore.kernel.org/r/20230401150737.597417-3-hdegoede@redhat.com
109 lines
3.4 KiB
C
109 lines
3.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later
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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) 2021-2023 Hans de Goede <hdegoede@redhat.com>
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*/
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#ifndef __PDX86_X86_ANDROID_TABLETS_H
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#define __PDX86_X86_ANDROID_TABLETS_H
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#include <linux/gpio_keys.h>
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#include <linux/i2c.h>
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#include <linux/irqdomain_defs.h>
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struct gpio_desc;
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struct gpiod_lookup_table;
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struct platform_device_info;
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struct software_node;
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/*
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* Helpers 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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/* Structs to describe devices to instantiate */
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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_gpio_button {
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struct gpio_keys_button button;
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const char *chip;
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int pin;
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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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struct x86_gpio_button *gpio_button;
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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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int x86_android_tablet_get_gpiod(const char *label, int pin, struct gpio_desc **desc);
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int x86_acpi_irq_helper_get(const struct x86_acpi_irq_data *data);
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/*
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* Extern declarations of x86_dev_info structs so there can be a single
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* MODULE_DEVICE_TABLE(dmi, ...), while splitting the board descriptions.
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*/
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extern const struct x86_dev_info acer_b1_750_info;
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extern const struct x86_dev_info advantech_mica_071_info;
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extern const struct x86_dev_info asus_me176c_info;
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extern const struct x86_dev_info asus_tf103c_info;
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extern const struct x86_dev_info chuwi_hi8_info;
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extern const struct x86_dev_info czc_p10t;
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extern const struct x86_dev_info lenovo_yogabook_x90_info;
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extern const struct x86_dev_info lenovo_yogabook_x91_info;
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extern const struct x86_dev_info lenovo_yoga_tab2_830_1050_info;
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extern const struct x86_dev_info lenovo_yt3_info;
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extern const struct x86_dev_info medion_lifetab_s10346_info;
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extern const struct x86_dev_info nextbook_ares8_info;
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extern const struct x86_dev_info peaq_c1010_info;
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extern const struct x86_dev_info whitelabel_tm800a550l_info;
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extern const struct x86_dev_info xiaomi_mipad2_info;
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extern const struct dmi_system_id x86_android_tablet_ids[];
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#endif
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