From df5b5e555b356662a5e4a23c6774fdfce8547d54 Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Mon, 2 Dec 2019 09:36:15 -0800
Subject: [PATCH] Input: goodix - add upside-down quirk for Teclast X89 tablet
Git-commit: df5b5e555b356662a5e4a23c6774fdfce8547d54
Patch-mainline: v5.5-rc1
References: bsc#1051510

The touchscreen on the Teclast X89 is mounted upside down in relation to
the display orientation (the touchscreen itself is mounted upright, but the
display is mounted upside-down). Add a quirk for this so that we send
coordinates which match the display orientation.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Bastien Nocera <hadess@hadess.net>
Link: https://lore.kernel.org/r/20191202085636.6650-1-hdegoede@redhat.com
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 drivers/input/touchscreen/goodix.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/input/touchscreen/goodix.c b/drivers/input/touchscreen/goodix.c
index fb43aa708660..0403102e807e 100644
--- a/drivers/input/touchscreen/goodix.c
+++ b/drivers/input/touchscreen/goodix.c
@@ -128,6 +128,15 @@ static const unsigned long goodix_irq_flags[] = {
  */
 static const struct dmi_system_id rotated_screen[] = {
 #if defined(CONFIG_DMI) && defined(CONFIG_X86)
+	{
+		.ident = "Teclast X89",
+		.matches = {
+			/* tPAD is too generic, also match on bios date */
+			DMI_MATCH(DMI_BOARD_VENDOR, "TECLAST"),
+			DMI_MATCH(DMI_BOARD_NAME, "tPAD"),
+			DMI_MATCH(DMI_BIOS_DATE, "12/19/2014"),
+		},
+	},
 	{
 		.ident = "WinBook TW100",
 		.matches = {
-- 
2.16.4