[PATCH 2/4] dt-bindings: input: edt-ft5x06 - add no-regmap-bulk-read property

[Alexandre Hamamdjian via B4 Relay <devnull+azkali.limited.gmail.com@kernel.org>]

From: Alexandre Hamamdjian <azkali.limited@gmail.com>

Document an optional boolean property for boards whose i2c controller
cannot reliably sustain the multi-byte block read of a full touch frame.
When set, the driver reads the frame one register at a time instead of in
a single bulk transfer.

Signed-off-by: Alexandre Hamamdjian <azkali.limited@gmail.com>
---
 .../devicetree/bindings/input/touchscreen/edt-ft5x06.yaml         | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/Documentation/devicetree/bindings/input/touchscreen/edt-ft5x06.yaml b/Documentation/devicetree/bindings/input/touchscreen/edt-ft5x06.yaml
index 68b2f1601654..0d8310a290ea 100644
--- a/Documentation/devicetree/bindings/input/touchscreen/edt-ft5x06.yaml
+++ b/Documentation/devicetree/bindings/input/touchscreen/edt-ft5x06.yaml
@@ -111,6 +111,14 @@ properties:
 
   interrupt-controller: true
 
+  no-regmap-bulk-read:
+    type: boolean
+    description:
+      Set this when the i2c controller the touch controller is attached to
+      cannot reliably sustain the multi-byte block read of a full touch
+      frame and aborts long transfers. The driver then reads the touch
+      frame one register at a time instead of in a single bulk transfer.
+
 unevaluatedProperties: false
 
 required:

-- 
2.55.0