The Medion Lifetab S10346 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 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@xxxxxxxxxx>
---
drivers/platform/x86/x86-android-tablets.c | 92 ++++++++++++++++++++++
1 file changed, 92 insertions(+)
diff --git a/drivers/platform/x86/x86-android-tablets.c b/drivers/platform/x86/x86-android-tablets.c
index 4acd6fa8d43b..f04e06eeb958 100644
--- a/drivers/platform/x86/x86-android-tablets.c
+++ b/drivers/platform/x86/x86-android-tablets.c
@@ -987,6 +987,88 @@ static void lenovo_yoga_tab2_830_1050_exit(void)
}
}
+/* 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",
@@ -1245,6 +1327,16 @@ static const struct dmi_system_id x86_android_tablet_ids[] __initconst = {
},
.driver_data = (void *)&lenovo_yoga_tab2_830_1050_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 = {
--
2.38.1
