Input: atmel_mxt_ts - mXT224 DMA quirk was fixed in firmware v2.0.AA
Signed-off-by: Nick Dyer <nick.dyer@itdev.co.uk>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
diff --git a/drivers/input/touchscreen/atmel_mxt_ts.c b/drivers/input/touchscreen/atmel_mxt_ts.c
index 03b8571..d50c614 100644
--- a/drivers/input/touchscreen/atmel_mxt_ts.c
+++ b/drivers/input/touchscreen/atmel_mxt_ts.c
@@ -1422,10 +1422,12 @@
switch (object->type) {
case MXT_GEN_MESSAGE_T5:
- if (data->info.family_id == 0x80) {
+ if (data->info.family_id == 0x80 &&
+ data->info.version < 0x20) {
/*
- * On mXT224 read and discard unused CRC byte
- * otherwise DMA reads are misaligned
+ * On mXT224 firmware versions prior to V2.0
+ * read and discard unused CRC byte otherwise
+ * DMA reads are misaligned.
*/
data->T5_msg_size = mxt_obj_size(object);
} else {