[PATCH] Input: silead - list all supported compatible strings in binding document

[Javier Martinez Canillas]

The driver contains compatible strings for different models, but the DT
binding doc only lists one of them. Add the remaining to the document.

Signed-off-by: Javier Martinez Canillas <javier@xxxxxxxxxxxxxxx>
---

 .../devicetree/bindings/input/touchscreen/silead_gsl1680.txt       | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/input/touchscreen/silead_gsl1680.txt b/Documentation/devicetree/bindings/input/touchscreen/silead_gsl1680.txt
index ce85ee508238..6aa625e0cb8d 100644
--- a/Documentation/devicetree/bindings/input/touchscreen/silead_gsl1680.txt
+++ b/Documentation/devicetree/bindings/input/touchscreen/silead_gsl1680.txt
@@ -1,7 +1,12 @@
 * GSL 1680 touchscreen controller
 
 Required properties:
-- compatible		  : "silead,gsl1680"
+- compatible		  : Must be one of the following, depending on the model:
+			    "silead,gsl1680"
+			    "silead,gsl1688"
+			    "silead,gsl3670"
+			    "silead,gsl3675"
+			    "silead,gsl3692"
 - reg			  : I2C slave address of the chip (0x40)
 - interrupt-parent	  : a phandle pointing to the interrupt controller
 			    serving the interrupt for this chip
-- 
2.9.3