Add suspend mode support for atmel touchscreen driver
Signed-off-by: Jiada Wang <jiada_wang@xxxxxxxxxx>
---
.../bindings/input/atmel,maxtouch.txt | 9 ++++++++
MAINTAINERS | 1 +
include/dt-bindings/input/atmel_mxt_ts.h | 23 +++++++++++++++++++
3 files changed, 33 insertions(+)
create mode 100644 include/dt-bindings/input/atmel_mxt_ts.h
diff --git a/Documentation/devicetree/bindings/input/atmel,maxtouch.txt b/Documentation/devicetree/bindings/input/atmel,maxtouch.txt
index c88919480d37..530312fc7a99 100644
--- a/Documentation/devicetree/bindings/input/atmel,maxtouch.txt
+++ b/Documentation/devicetree/bindings/input/atmel,maxtouch.txt
@@ -31,6 +31,15 @@ Optional properties for main touchpad device:
- reset-gpios: GPIO specifier for the touchscreen's reset pin (active low)
+- atmel,suspend-mode: Select method used to suspend:
+ MXT_SUSPEND_DEEP_SLEEP - use T7 to suspend the device into deep sleep
+ MXT_SUSPEND_T9_CTRL - use T9.CTRL to turn off touch processing
+ MXT_SUSPEND_REGULATOR - use regulators to power down device during suspend
+ Definitions are in <dt-bindings/input/atmel_mxt_ts.h>.
+
+- vdd: vdd: phandle to Power supply regulator
+- avdd: phandle to Analog Power supply regulator
+
Example:
touch@4b {
diff --git a/MAINTAINERS b/MAINTAINERS
index e48ab79879ac..350ae664e6f0 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -2873,6 +2873,7 @@ T: git git://github.com/ndyer/linux.git
S: Maintained
F: Documentation/devicetree/bindings/input/atmel,maxtouch.txt
F: drivers/input/touchscreen/atmel_mxt_ts.c
+F: include/dt-bindings/input/atmel_mxt_ts.h
ATMEL WIRELESS DRIVER
M: Simon Kelley <simon@xxxxxxxxxxxxxxxxx>
diff --git a/include/dt-bindings/input/atmel_mxt_ts.h b/include/dt-bindings/input/atmel_mxt_ts.h
new file mode 100644
index 000000000000..41ed0f8111aa
--- /dev/null
+++ b/include/dt-bindings/input/atmel_mxt_ts.h
@@ -0,0 +1,23 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Atmel maXTouch Touchscreen driver
+ *
+ * Copyright (C) 2015 Atmel Corporation
+ * Author: Nick Dyer <nick.dyer@xxxxxxxxxxx>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#ifndef __DT_BINDINGS_ATMEL_MXT_TS_H
+#define __DT_BINDINGS_ATMEL_MXT_TS_H
+
+enum mxt_suspend_mode {
+ MXT_SUSPEND_DEEP_SLEEP = 0,
+ MXT_SUSPEND_T9_CTRL = 1,
+ MXT_SUSPEND_REGULATOR = 2,
+};
+
+#endif /* __DT_BINDINGS_ATMEL_MXT_TS_H */
--
2.17.1
