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platform/x86: x86-android-tablets: Add TM800A550L data

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The whitelabel (sold as various brands) TM800A550L tablets's DSDT contains
a whole bunch of bogus ACPI I2C devices and the ACPI node describing
the touchscreen is bad (the IRQ is missing). Enumeration of these is
skipped through the acpi_quirk_skip_i2c_client_enumeration().

Add support for manually instantiating the (now) missing I2C devices by
adding the necessary device info to the x86-android-tablets module,
including instantiating an actually working i2c-client for
the touchscreen.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20211229231431.437982-13-hdegoede@redhat.com
This commit is contained in:
Hans de Goede 2021-12-30 00:14:31 +01:00
parent f359c40bf8
commit b40082d0b0
1 changed files with 92 additions and 1 deletions
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93
drivers/platform/x86/x86-android-tablets.c
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@ -490,6 +490,86 @@ static const struct x86_dev_info chuwi_hi8_info __initconst = {
.i2c_client_count = ARRAY_SIZE(chuwi_hi8_i2c_clients),
};
/*
* 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
@ -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"),