From: Nick Dyer <nick.dyer@xxxxxxxxxxx>
Later chips (for example mXT1664S) different mappings for bootloader addresses.
This means that we must look at the family ID to determine which address to
use.
Signed-off-by: Nick Dyer <nick.dyer@xxxxxxxxxxx>
Acked-by: Benson Leung <bleung@xxxxxxxxxxxx>
Acked-by: Yufeng Shen <miletus@xxxxxxxxxxxx>
---
drivers/input/touchscreen/atmel_mxt_ts.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/input/touchscreen/atmel_mxt_ts.c b/drivers/input/touchscreen/atmel_mxt_ts.c
index f9db3e1..5fe3285 100644
--- a/drivers/input/touchscreen/atmel_mxt_ts.c
+++ b/drivers/input/touchscreen/atmel_mxt_ts.c
@@ -391,6 +391,12 @@ static int mxt_lookup_bootloader_address(struct mxt_data *data)
switch (appmode) {
case 0x4a:
case 0x4b:
+ /* Chips after 1664S use different scheme */
+ if (data->info.family_id >= 0xa2) {
+ bootloader = appmode - 0x24;
+ break;
+ }
+ /* Fall through for normal case */
case 0x4c:
case 0x4d:
case 0x5a:
--
2.0.1
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