HID: apple: add Fn key mapping for Macbook Pro with touchbar

Signed-off-by: Janne Grunau <j@jannau.net>

Author: jannau

drivers/hid/hid-apple.c

@@ -285,6 +285,28 @@ static const struct apple_key_translation apple_fn_keys_spi[] = {
 	{ }
 };
 
+static const struct apple_key_translation apple_fn_keys_mbp13[] = {
+	{ KEY_BACKSPACE, KEY_DELETE },
+	{ KEY_ENTER,	KEY_INSERT },
+	{ KEY_UP,	KEY_PAGEUP },
+	{ KEY_DOWN,	KEY_PAGEDOWN },
+	{ KEY_LEFT,	KEY_HOME },
+	{ KEY_RIGHT,	KEY_END },
+	{ KEY_1,	KEY_F1 },
+	{ KEY_2,	KEY_F2 },
+	{ KEY_3,	KEY_F3 },
+	{ KEY_4,	KEY_F4 },
+	{ KEY_5,	KEY_F5 },
+	{ KEY_6,	KEY_F6 },
+	{ KEY_7,	KEY_F7 },
+	{ KEY_8,	KEY_F8 },
+	{ KEY_9,	KEY_F9 },
+	{ KEY_0,	KEY_F10 },
+	{ KEY_MINUS,	KEY_F11 },
+	{ KEY_EQUAL,	KEY_F12 },
+	{ }
+};
+
 static const struct apple_key_translation powerbook_fn_keys[] = {
 	{ KEY_BACKSPACE, KEY_DELETE },
 	{ KEY_F1,	KEY_BRIGHTNESSDOWN,     APPLE_FLAG_FKEY },
@@ -496,6 +518,9 @@ static int hidinput_apple_event(struct hid_device *hid, struct input_dev *input,
 		else if (hid->product >= USB_DEVICE_ID_APPLE_WELLSPRING4_ANSI &&
 				hid->product <= USB_DEVICE_ID_APPLE_WELLSPRING4A_JIS)
 			table = macbookair_fn_keys;
+		else if (hid->vendor == SPI_VENDOR_ID_APPLE &&
+			hid->product == SPI_DEVICE_ID_APPLE_MACBOOK_PRO13_2020)
+			table = apple_fn_keys_mbp13;
 		else if (hid->vendor == SPI_VENDOR_ID_APPLE)
 			table = apple_fn_keys_spi;
 		else if (hid->product < 0x21d || hid->product >= 0x300)
@@ -678,6 +703,7 @@ static void apple_setup_input(struct input_dev *input)
 	/* Enable all needed keys */
 	apple_setup_key_translation(input, apple_fn_keys);
 	apple_setup_key_translation(input, apple_fn_keys_spi);
+	apple_setup_key_translation(input, apple_fn_keys_mbp13);
 	apple_setup_key_translation(input, powerbook_fn_keys);
 	apple_setup_key_translation(input, powerbook_numlock_keys);
 	apple_setup_key_translation(input, apple_iso_keyboard);