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[4/5] dt-bindings: fpga: xilinx-slave-serial: add optional INIT_B GPIO

Message ID 20200611211144.9421-4-luca@lucaceresoli.net
State Accepted
Commit a5d0fbab4e0b42fb61b542b8c8c4c2ba50dc32d8
Headers show
Series None | expand

Commit Message

Luca Ceresoli June 11, 2020, 9:11 p.m. UTC 
The INIT_B is used by the 6 and 7 series to report the programming status,
providing more control and information about programming errors.

Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
---
 .../devicetree/bindings/fpga/xilinx-slave-serial.txt       | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/fpga/xilinx-slave-serial.txt b/Documentation/devicetree/bindings/fpga/xilinx-slave-serial.txt
index 9f103f3872e8..a049082e1513 100644
--- a/Documentation/devicetree/bindings/fpga/xilinx-slave-serial.txt
+++ b/Documentation/devicetree/bindings/fpga/xilinx-slave-serial.txt
@@ -16,6 +16,10 @@  Required properties:
 - prog_b-gpios: config pin (referred to as PROGRAM_B in the manual)
 - done-gpios: config status pin (referred to as DONE in the manual)
 
+Optional properties:
+- init_b-gpios: initialization status and configuration error pin
+                (referred to as INIT_B in the manual)
+
 Example for full FPGA configuration:
 
 	fpga-region0 {
@@ -40,7 +44,8 @@  Example for full FPGA configuration:
 			spi-max-frequency = <60000000>;
 			spi-cpha;
 			reg = <0>;
-			done-gpios = <&gpio0 9 GPIO_ACTIVE_HIGH>;
 			prog_b-gpios = <&gpio0 29 GPIO_ACTIVE_LOW>;
+			init_b-gpios = <&gpio0 28 GPIO_ACTIVE_LOW>;
+			done-gpios = <&gpio0 9 GPIO_ACTIVE_HIGH>;
 		};
 	};