[PATCH v3 1/2] spi: pic32-sqi: add binding document for PIC32 Quad-SPI driver.

[Purna Chandra Mandal <purna.mandal-UWL1GkI3JZL3oGB3hsPCZA@public.gmane.org>]

Document Device tree bindings for the quad SPI peripheral
found on Microchip PIC32 class devices.

Signed-off-by: Purna Chandra Mandal <purna.mandal-UWL1GkI3JZL3oGB3hsPCZA@public.gmane.org>
Acked-by: Rob Herring <rob-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>

Cc: Kumar Gala <galak-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
Cc: Ian Campbell <ijc+devicetree-KcIKpvwj1kUDXYZnReoRVg@public.gmane.org>
Cc: Rob Herring <robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
Cc: Pawel Moll <pawel.moll-5wv7dgnIgG8@public.gmane.org>
Cc: Mark Rutland <mark.rutland-5wv7dgnIgG8@public.gmane.org>
Cc: Mark Brown <broonie-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>

---

Changes in v3:
- update exmaple, replace 'sqi@' with 'spi@'.

Changes in v2: None

 Documentation/devicetree/bindings/spi/sqi-pic32.txt | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/spi/sqi-pic32.txt

diff --git a/Documentation/devicetree/bindings/spi/sqi-pic32.txt b/Documentation/devicetree/bindings/spi/sqi-pic32.txt
new file mode 100644
index 0000000..c82d021
--- /dev/null
+++ b/Documentation/devicetree/bindings/spi/sqi-pic32.txt
@@ -0,0 +1,18 @@
+Microchip PIC32 Quad SPI controller
+-----------------------------------
+Required properties:
+- compatible: Should be "microchip,pic32mzda-sqi".
+- reg: Address and length of SQI controller register space.
+- interrupts: Should contain SQI interrupt.
+- clocks: Should contain phandle of two clocks in sequence, one that drives
+          clock on SPI bus and other that drives SQI controller.
+- clock-names: Should be "spi_ck" and "reg_ck" in order.
+
+Example:
+	sqi1: spi@1f8e2000 {
+		compatible = "microchip,pic32mzda-sqi";
+		reg = <0x1f8e2000 0x200>;
+		clocks = <&rootclk REF2CLK>, <&rootclk PB5CLK>;
+		clock-names = "spi_ck", "reg_ck";
+		interrupts = <169 IRQ_TYPE_LEVEL_HIGH>;
+	};
-- 
1.8.3.1

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