Input: atmel_mxt_ts - add bootloader addresses for new chips

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@itdev.co.uk>
Acked-by: Benson Leung <bleung@chromium.org>
Acked-by: Yufeng Shen <miletus@chromium.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

diff --git a/drivers/input/touchscreen/atmel_mxt_ts.c b/drivers/input/touchscreen/atmel_mxt_ts.c
index bc1d276..dc8133d 100644 (file)
--- a/drivers/input/touchscreen/atmel_mxt_ts.c
+++ b/drivers/input/touchscreen/atmel_mxt_ts.c
@@ -387,6 +387,12 @@ 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: