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authorNick Dyer <nick.dyer@itdev.co.uk>2014-08-07 20:56:01 +0400
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2014-08-08 10:36:32 +0400
commit437d4f3797041942947ec838cf5d65f770562c5d (patch)
tree408f2ce146fbddb4a2ed9626a17a177d57a42107 /drivers/input
parentfc8104bc5a3f6f49d79f45f2706f79f77a9fb2ae (diff)
downloadlinux-437d4f3797041942947ec838cf5d65f770562c5d.tar.xz
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>
Diffstat (limited to 'drivers/input')
-rw-r--r--drivers/input/touchscreen/atmel_mxt_ts.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/input/touchscreen/atmel_mxt_ts.c b/drivers/input/touchscreen/atmel_mxt_ts.c
index 03b85711cb70..d50c6147bb76 100644
--- a/drivers/input/touchscreen/atmel_mxt_ts.c
+++ b/drivers/input/touchscreen/atmel_mxt_ts.c
@@ -1422,10 +1422,12 @@ static int mxt_get_object_table(struct mxt_data *data)
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 {