6.12-stable review patch. If anyone has any objections, please let me know.
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From: Kerem Karabay kekrby@gmail.com
[ Upstream commit 7dfe48bdc9d38db46283f2e0281bc1626277b8bf ]
In Apple Touch Bar, the HID_DG_CONTACTMAX is not present, but the maximum contact count is still greater than the default. Add quirks for the same.
Acked-by: Benjamin Tissoires bentiss@kernel.org Signed-off-by: Kerem Karabay kekrby@gmail.com Co-developed-by: Aditya Garg gargaditya08@live.com Signed-off-by: Aditya Garg gargaditya08@live.com Signed-off-by: Jiri Kosina jkosina@suse.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/hid/hid-multitouch.c | 7 +++++++ 1 file changed, 7 insertions(+)
diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c index 39a8c6619876b..ec676f26800ea 100644 --- a/drivers/hid/hid-multitouch.c +++ b/drivers/hid/hid-multitouch.c @@ -1327,6 +1327,13 @@ static int mt_touch_input_configured(struct hid_device *hdev, struct input_dev *input = hi->input; int ret;
+ /* + * HID_DG_CONTACTMAX field is not present on Apple Touch Bars, + * but the maximum contact count is greater than the default. + */ + if (cls->quirks & MT_QUIRK_APPLE_TOUCHBAR && cls->maxcontacts) + td->maxcontacts = cls->maxcontacts; + if (!td->maxcontacts) td->maxcontacts = MT_DEFAULT_MAXCONTACT;