Commit af503716ac14 ("i2c: core: report OF style module alias for devices
registered via OF") fixed how the I2C core reports the module alias when
devices are registered via OF.

But the atmel_mxt_ts driver only has an "atmel,maxtouch" compatible in its
OF device ID table, so if a Device Tree is using a different one, autoload
won't be working for the module (the matching works because the I2C device
ID table is used as a fallback).

So add compatible strings for each of the entries in the I2C device table.

Fixes: af503716ac14 ("i2c: core: report OF style module alias for devices registered via OF")
Reported-by: Enric Balletbo i Serra <redacted>
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
---

 Documentation/devicetree/bindings/input/atmel,maxtouch.txt | 6 +++++-
 drivers/input/touchscreen/atmel_mxt_ts.c                   | 4 ++++
 2 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/input/atmel,maxtouch.txt b/Documentation/devicetree/bindings/input/atmel,maxtouch.txt
index 23e3abc3fdef..cd43fb8bc2ce 100644
--- a/Documentation/devicetree/bindings/input/atmel,maxtouch.txt
+++ b/Documentation/devicetree/bindings/input/atmel,maxtouch.txt

@@ -1,8 +1,12 @@
 Atmel maXTouch touchscreen/touchpad

 Required properties:
-- compatible:
+- compatible: Must be one of the following
+    atmel,qt602240_ts
+    atmel,atmel_mxt_ts
+    atmel,atmel_mxt_tp
     atmel,maxtouch
+    atmel,mXT224

 - reg: The I2C address of the device

diff --git a/drivers/input/touchscreen/atmel_mxt_ts.c b/drivers/input/touchscreen/atmel_mxt_ts.c
index 7659bc48f1db..e8ef83f168d6 100644
--- a/drivers/input/touchscreen/atmel_mxt_ts.c
+++ b/drivers/input/touchscreen/atmel_mxt_ts.c

@@ -3238,7 +3238,11 @@ static int __maybe_unused mxt_resume(struct device *dev)
 static SIMPLE_DEV_PM_OPS(mxt_pm_ops, mxt_suspend, mxt_resume);

 static const struct of_device_id mxt_of_match[] = {
+       { .compatible = "atmel,qt602240_ts", },
+       { .compatible = "atmel,atmel_mxt_ts", },
+       { .compatible = "atmel,atmel_mxt_tp", },
        { .compatible = "atmel,maxtouch", },
+       { .compatible = "atmel,mXT224", },
        {},
 };
 MODULE_DEVICE_TABLE(of, mxt_of_match);
--

2.14.3