platform/x86: x86-android-tablets: Add Nextbook Ares 8 data

The Nextbook Ares 8 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@redhat.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20220205191356.225505-6-hdegoede@redhat.com

diff --git a/drivers/platform/x86/x86-android-tablets.c b/drivers/platform/x86/x86-android-tablets.c
index 6d3a453d90eb6cf1f627fdbc731a4bff1df82dec..838d667126e52478923c276b440d7c168c2c26b1 100644 (file)
--- a/drivers/platform/x86/x86-android-tablets.c
+++ b/drivers/platform/x86/x86-android-tablets.c
@@ -669,6 +669,84 @@ static const struct x86_dev_info czc_p10t __initconst = {
        .init = czc_p10t_init,
 };
 
+/* 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 nextbook_ares8_int3496_gpios = {
+       .dev_id = "intel-int3496",
+       .table = {
+               GPIO_LOOKUP("INT33FC:02", 1, "mux", GPIO_ACTIVE_HIGH),
+               GPIO_LOOKUP("INT33FC:02", 18, "id", GPIO_ACTIVE_HIGH),
+               { }
+       },
+};
+
+static struct gpiod_lookup_table * const nextbook_ares8_gpios[] = {
+       &nextbook_ares8_int3496_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
@@ -830,7 +908,7 @@ static const struct dmi_system_id x86_android_tablet_ids[] __initconst = {
                .driver_data = (void *)&czc_p10t,
        },
        {
-               /* A variant of CZC P10T */
+               /* CZC P10T variant */
                .ident = "ViewSonic ViewPad 10",
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "ViewSonic"),
@@ -838,6 +916,14 @@ static const struct dmi_system_id x86_android_tablet_ids[] __initconst = {
                },
                .driver_data = (void *)&czc_p10t,
        },
+       {
+               /* 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 = {