Thread (36 messages) 36 messages, 5 authors, 2017-04-09
STALE3351d
Revisions (5)
  1. v4 current
  2. v5 [diff vs current]
  3. v6 [diff vs current]
  4. v7 [diff vs current]
  5. v8 [diff vs current]

[PATCH v4 12/23] drivers/fsi: Add documentation for GPIO bindings

From: Christopher Bostic <hidden>
Date: 2017-03-29 17:47:28
Also in: linux-devicetree, lkml
Subsystem: fsi subsystem, open firmware and flattened device tree bindings, the rest · Maintainers: Eddie James, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds

From: Chris Bostic <redacted>

Add fsi master gpio device tree binding documentation

Signed-off-by: Chris Bostic <redacted>
Signed-off-by: Joel Stanley <joel@jms.id.au>
---
 .../devicetree/bindings/fsi/fsi-master-gpio.txt    | 24 ++++++++++++++++++++++
 1 file changed, 24 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/fsi/fsi-master-gpio.txt
diff --git a/Documentation/devicetree/bindings/fsi/fsi-master-gpio.txt b/Documentation/devicetree/bindings/fsi/fsi-master-gpio.txt
new file mode 100644
index 0000000..a767259
--- /dev/null
+++ b/Documentation/devicetree/bindings/fsi/fsi-master-gpio.txt
@@ -0,0 +1,24 @@
+Device-tree bindings for gpio-based FSI master driver
+-----------------------------------------------------
+
+Required properties:
+ - compatible = "fsi-master-gpio";
+ - clock-gpios = <gpio-descriptor>;	: GPIO for FSI clock
+ - data-gpios = <gpio-descriptor>;	: GPIO for FSI data signal
+
+Optional properties:
+ - enable-gpios = <gpio-descriptor>;	: GPIO for enable signal
+ - trans-gpios = <gpio-descriptor>;	: GPIO for voltage translator enable
+ - mux-gpios = <gpio-descriptor>;	: GPIO for pin multiplexing with other
+                                          functions (eg, external FSI masters)
+
+Examples:
+
+    fsi-master {
+        compatible = "fsi-master-gpio", "fsi-master";
+        clock-gpios = <&gpio 0>;
+        data-gpios = <&gpio 1>;
+        enable-gpios = <&gpio 2>;
+        trans-gpios = <&gpio 3>;
+        mux-gpios = <&gpio 4>;
+    }
-- 
1.8.2.2
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