Messages in this thread Patch in this message | | | From | nick.dyer@itdev ... | Subject | [PATCH 2/2] Input: atmel_mxt_ts - mXT224 DMA quirk was fixed in firmware v2.0.AA | Date | Thu, 7 Aug 2014 15:07:18 +0100 |
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From: Nick Dyer <nick.dyer@itdev.co.uk>
Signed-off-by: Nick Dyer <nick.dyer@itdev.co.uk> --- drivers/input/touchscreen/atmel_mxt_ts.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/drivers/input/touchscreen/atmel_mxt_ts.c b/drivers/input/touchscreen/atmel_mxt_ts.c index da497db..67ea728 100644 --- a/drivers/input/touchscreen/atmel_mxt_ts.c +++ b/drivers/input/touchscreen/atmel_mxt_ts.c @@ -1424,10 +1424,12 @@ 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 { -- 1.9.1
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