@@ -1413,21 +1413,26 @@ static int mxt_get_object_table(struct mxt_data *data)
int i;
u8 reportid;
u16 end_address;
+ u8 *crc_ptr;
table_size = data->info.object_num * sizeof(struct mxt_object);
- object_table = kzalloc(table_size, GFP_KERNEL);
+ object_table = kzalloc(table_size + MXT_INFO_CHECKSUM_SIZE, GFP_KERNEL);
if (!object_table) {
dev_err(&data->client->dev, "Failed to allocate memory\n");
return -ENOMEM;
}
- error = __mxt_read_reg(client, MXT_OBJECT_START, table_size,
+ error = __mxt_read_reg(client, MXT_OBJECT_START,
+ table_size + MXT_INFO_CHECKSUM_SIZE,
object_table);
if (error) {
kfree(object_table);
return error;
}
+ crc_ptr = (u8 *)object_table + table_size;
+ data->info_crc = crc_ptr[0] | (crc_ptr[1] << 8) | (crc_ptr[2] << 16);
+
/* Valid Report IDs start counting from 1 */
reportid = 1;
data->mem_size = 0;
mxt_update_cfg() first checks the info block CRC (data->info_crc) and always does an upload irrespective of configuration CRC if it does not match. However the info_crc is never initialised from the information provided by the firmware which causes an upload to be done at each probe if configuration data firmware is available. Signed-off-by: Martin Fuzzey <mfuzzey@parkeon.com> --- drivers/input/touchscreen/atmel_mxt_ts.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) -- To unsubscribe from this list: send the line "unsubscribe linux-input" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html