diff options
Diffstat (limited to '')
| -rw-r--r-- | drivers/platform/x86/x86-android-tablets.c | 93 |
1 files changed, 92 insertions, 1 deletions
diff --git a/drivers/platform/x86/x86-android-tablets.c b/drivers/platform/x86/x86-android-tablets.c index fb257b5811d3..d39da5fca6c5 100644 --- a/drivers/platform/x86/x86-android-tablets.c +++ b/drivers/platform/x86/x86-android-tablets.c @@ -491,6 +491,86 @@ static const struct x86_dev_info chuwi_hi8_info __initconst = { }; /* + * 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 *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. @@ -560,7 +640,18 @@ static const struct dmi_system_id x86_android_tablet_ids[] __initconst = { DMI_MATCH(DMI_PRODUCT_NAME, "S806"), }, .driver_data = (void *)&chuwi_hi8_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"), |