1 files changed, 234 insertions, 0 deletions
diff --git a/drivers/platform/x86/x86-android-tablets/dmi.c b/drivers/platform/x86/x86-android-tablets/dmi.c
new file mode 100644
index 000000000000..4a5720d6fc1d
--- /dev/null
+++ b/drivers/platform/x86/x86-android-tablets/dmi.c
@@ -0,0 +1,234 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * DMI based code to deal with broken DSDTs on X86 tablets which ship with
+ * Android as (part of) the factory image. The factory kernels shipped on these
+ * devices typically have a bunch of things hardcoded, rather than specified
+ * in their DSDT.
+ *
+ * Copyright (C) 2021-2023 Hans de Goede <hansg@kernel.org>
+ */
+
+#include <linux/dmi.h>
+#include <linux/init.h>
+#include <linux/mod_devicetable.h>
+#include <linux/module.h>
+
+#include "x86-android-tablets.h"
+
+const struct dmi_system_id x86_android_tablet_ids[] __initconst = {
+	{
+		/* Acer Iconia One 8 A1-840 (non FHD version) */
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Insyde"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "BayTrail"),
+			/* Above strings are too generic also match BIOS date */
+			DMI_MATCH(DMI_BIOS_DATE, "04/01/2014"),
+		},
+		.driver_data = (void *)&acer_a1_840_info,
+	},
+	{
+		/* Acer Iconia One 7 B1-750 */
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Insyde"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "VESPA2"),
+		},
+		.driver_data = (void *)&acer_b1_750_info,
+	},
+	{
+		/* Advantech MICA-071 */
+		.matches = {
+			DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Advantech"),
+			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "MICA-071"),
+		},
+		.driver_data = (void *)&advantech_mica_071_info,
+	},
+	{
+		/* Asus MeMO Pad 7 ME176C */
+		.matches = {
+			DMI_EXACT_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "ME176C"),
+		},
+		.driver_data = (void *)&asus_me176c_info,
+	},
+	{
+		/* Asus TF103C */
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "TF103C"),
+		},
+		.driver_data = (void *)&asus_tf103c_info,
+	},
+	{
+		/* Chuwi Hi8 (CWI509) */
+		.matches = {
+			DMI_MATCH(DMI_BOARD_VENDOR, "Hampoo"),
+			DMI_MATCH(DMI_BOARD_NAME, "BYT-PA03C"),
+			DMI_MATCH(DMI_SYS_VENDOR, "ilife"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "S806"),
+		},
+		.driver_data = (void *)&chuwi_hi8_info,
+	},
+	{
+		/* Cyberbook T116 Android version */
+		.matches = {
+			DMI_MATCH(DMI_BOARD_VENDOR, "Default string"),
+			DMI_MATCH(DMI_BOARD_NAME, "Cherry Trail CR"),
+			/* Above strings are much too generic, also match on SKU + BIOS date */
+			DMI_MATCH(DMI_PRODUCT_SKU, "20170531"),
+			DMI_MATCH(DMI_BIOS_DATE, "07/12/2017"),
+		},
+		.driver_data = (void *)&cyberbook_t116_info,
+	},
+	{
+		/* CZC P10T */
+		.ident = "CZC ODEON TPC-10 (\"P10T\")",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "CZC"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "ODEON*TPC-10"),
+		},
+		.driver_data = (void *)&czc_p10t,
+	},
+	{
+		/* CZC P10T variant */
+		.ident = "ViewSonic ViewPad 10",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "ViewSonic"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "VPAD10"),
+		},
+		.driver_data = (void *)&czc_p10t,
+	},
+	{
+		/* Lenovo Yoga Book X90F / X90L */
+		.matches = {
+			DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Intel Corporation"),
+			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "CHERRYVIEW D1 PLATFORM"),
+			DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "YETI-11"),
+		},
+		.driver_data = (void *)&lenovo_yogabook_x90_info,
+	},
+	{
+		/* Lenovo Yoga Book X91F / X91L */
+		.matches = {
+			/* Inexact match to match F + L versions */
+			DMI_MATCH(DMI_PRODUCT_NAME, "Lenovo YB1-X91"),
+		},
+		.driver_data = (void *)&lenovo_yogabook_x91_info,
+	},
+	{
+		/*
+		 * Lenovo Yoga Tablet 2 Pro 1380F/L (13")
+		 * This has more or less the same BIOS as the 830F/L or 1050F/L
+		 * (8" and 10") below, but unlike the 8"/10" models which share
+		 * the same mainboard this model has a different mainboard.
+		 * This match for the 13" model MUST come before the 8" + 10"
+		 * match since that one will also match the 13" model!
+		 */
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Intel Corp."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "VALLEYVIEW C0 PLATFORM"),
+			DMI_MATCH(DMI_BOARD_NAME, "BYT-T FFD8"),
+			/* Full match so as to NOT match the 830/1050 BIOS */
+			DMI_MATCH(DMI_BIOS_VERSION, "BLADE_21.X64.0005.R00.1504101516"),
+		},
+		.driver_data = (void *)&lenovo_yoga_tab2_1380_info,
+	},
+	{
+		/*
+		 * Lenovo Yoga Tablet 2 830F/L or 1050F/L
+		 * The 8" and 10" Lenovo Yoga Tablet 2 use the same mainboard.
+		 */
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Intel Corp."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "VALLEYVIEW C0 PLATFORM"),
+			DMI_MATCH(DMI_BOARD_NAME, "BYT-T FFD8"),
+			/* Partial match on beginning of BIOS version */
+			DMI_MATCH(DMI_BIOS_VERSION, "BLADE_21"),
+		},
+		.driver_data = (void *)&lenovo_yoga_tab2_830_1050_info,
+	},
+	{
+		/* Lenovo Yoga Tab 3 Pro YT3-X90F */
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Intel Corporation"),
+			DMI_MATCH(DMI_PRODUCT_VERSION, "Blade3-10A-001"),
+		},
+		.driver_data = (void *)&lenovo_yt3_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 (BYT version) */
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Insyde"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "M890BAP"),
+		},
+		.driver_data = (void *)&nextbook_ares8_info,
+	},
+	{
+		/* Nextbook Ares 8A (CHT version) */
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Insyde"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "CherryTrail"),
+			DMI_MATCH(DMI_BIOS_VERSION, "M882"),
+		},
+		.driver_data = (void *)&nextbook_ares8a_info,
+	},
+	{
+		/* Peaq C1010 */
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "PEAQ"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "PEAQ PMM C1010 MD99187"),
+		},
+		.driver_data = (void *)&peaq_c1010_info,
+	},
+	{
+		/* Vexia Edu Atla 10 tablet 5V version */
+		.matches = {
+			/* Having all 3 of these not set is somewhat unique */
+			DMI_MATCH(DMI_SYS_VENDOR, "To be filled by O.E.M."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "To be filled by O.E.M."),
+			DMI_MATCH(DMI_BOARD_NAME, "To be filled by O.E.M."),
+			/* Above strings are too generic, also match on BIOS date */
+			DMI_MATCH(DMI_BIOS_DATE, "05/14/2015"),
+		},
+		.driver_data = (void *)&vexia_edu_atla10_5v_info,
+	},
+	{
+		/* Vexia Edu Atla 10 tablet 9V version */
+		.matches = {
+			DMI_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
+			DMI_MATCH(DMI_BOARD_NAME, "Aptio CRB"),
+			/* Above strings are too generic, also match on BIOS date */
+			DMI_MATCH(DMI_BIOS_DATE, "08/25/2014"),
+		},
+		.driver_data = (void *)&vexia_edu_atla10_9v_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"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "Mipad2"),
+		},
+		.driver_data = (void *)&xiaomi_mipad2_info,
+	},
+	{ }
+};
+MODULE_DEVICE_TABLE(dmi, x86_android_tablet_ids);