Signed-off-by: Nick Dyer <nick.dyer@xxxxxxxxxxx>
Acked-by: Benson Leung <bleung@xxxxxxxxxxxx>
---
drivers/input/touchscreen/atmel_mxt_ts.c | 26 ++++++++++++++++++++++++++
1 file changed, 26 insertions(+)
diff --git a/drivers/input/touchscreen/atmel_mxt_ts.c b/drivers/input/touchscreen/atmel_mxt_ts.c
index 842312e..df8fc1a 100644
--- a/drivers/input/touchscreen/atmel_mxt_ts.c
+++ b/drivers/input/touchscreen/atmel_mxt_ts.c
@@ -206,6 +206,8 @@
#define MXT_FRAME_CRC_PASS 0x04
#define MXT_APP_CRC_FAIL 0x40 /* valid 7 8 bit only */
#define MXT_BOOT_STATUS_MASK 0x3f
+#define MXT_BOOT_EXTENDED_ID (1 << 5)
+#define MXT_BOOT_ID_MASK 0x1f
/* Touch status */
#define MXT_UNGRIP (1 << 0)
@@ -430,6 +432,27 @@ static int mxt_lookup_bootloader_address(struct mxt_data *data)
return 0;
}
+static u8 mxt_get_bootloader_version(struct mxt_data *data, u8 val)
+{
+ struct device *dev = &data->client->dev;
+ u8 buf[3];
+
+ if (val & MXT_BOOT_EXTENDED_ID) {
+ if (mxt_bootloader_read(data, &buf[0], 3) != 0) {
+ dev_err(dev, "%s: i2c failure\n", __func__);
+ return -EIO;
+ }
+
+ dev_info(dev, "Bootloader ID:%d Version:%d\n", buf[1], buf[2]);
+
+ return buf[0];
+ } else {
+ dev_info(dev, "Bootloader ID:%d\n", val & MXT_BOOT_ID_MASK);
+
+ return val;
+ }
+}
+
static int mxt_check_bootloader(struct mxt_data *data, unsigned int state)
{
struct device *dev = &data->client->dev;
@@ -462,6 +485,9 @@ recheck:
if (ret)
return ret;
+ if (state == MXT_WAITING_BOOTLOAD_CMD)
+ val = mxt_get_bootloader_version(data, val);
+
switch (state) {
case MXT_WAITING_BOOTLOAD_CMD:
case MXT_WAITING_FRAME_DATA:
--
1.7.10.4
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