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

[nick . dyer]

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

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/