diff mbox

[10/15] Input: atmel_mxt_ts - add bootloader addresses for new chips

Message ID 1404399697-26484-11-git-send-email-nick.dyer@itdev.co.uk (mailing list archive)
State New, archived
Headers show

Commit Message

Nick Dyer July 3, 2014, 3:01 p.m. UTC 
From: Nick Dyer <nick.dyer@itdev.co.uk>

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>
---
 drivers/input/touchscreen/atmel_mxt_ts.c | 6 ++++++
 1 file changed, 6 insertions(+)
diff mbox

Patch

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: