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[1/2] dt-bindings: spi: document bcm63xx SPI devicetree bindings

Message ID 20170221105822.10437-1-jonas.gorski@gmail.com
State Not Applicable, archived
Headers show

Commit Message

Jonas Gorski Feb. 21, 2017, 10:58 a.m. UTC 
Add documentation for the bindings of the low speed SPI controller found
on most bcm63xx SoCs.

Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
---
 .../devicetree/bindings/spi/spi-bcm63xx.txt        | 33 ++++++++++++++++++++++
 1 file changed, 33 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/spi/spi-bcm63xx.txt

Comments

Mark Brown Feb. 21, 2017, 11:03 p.m. UTC | #1 
On Tue, Feb 21, 2017 at 11:58:21AM +0100, Jonas Gorski wrote:
> Add documentation for the bindings of the low speed SPI controller found
> on most bcm63xx SoCs.

Please use subject lines matching the style for the subsystem.  This
makes it easier for people to identify relevant patches.
Florian Fainelli Feb. 21, 2017, 11:08 p.m. UTC | #2 
On 02/21/2017 02:58 AM, Jonas Gorski wrote:
> Add documentation for the bindings of the low speed SPI controller found
> on most bcm63xx SoCs.
> 
> Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>

Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
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Patch

diff --git a/Documentation/devicetree/bindings/spi/spi-bcm63xx.txt b/Documentation/devicetree/bindings/spi/spi-bcm63xx.txt
new file mode 100644
index 000000000000..1c16f6692613
--- /dev/null
+++ b/Documentation/devicetree/bindings/spi/spi-bcm63xx.txt
@@ -0,0 +1,33 @@ 
+Binding for Broadcom BCM6348/BCM6358 SPI controller
+
+Required properties:
+- compatible: must contain one of "brcm,bcm6348-spi", "brcm,bcm6358-spi".
+- reg: Base address and size of the controllers memory area.
+- interrupts: Interrupt for the SPI block.
+- clocks: phandle of the SPI clock.
+- clock-names: has to be "spi".
+- #address-cells: <1>, as required by generic SPI binding.
+- #size-cells: <0>, also as required by generic SPI binding.
+
+Optional properties:
+- num-cs: some controllers have less than 8 cs signals. Defaults to 8
+  if absent.
+
+Child nodes as per the generic SPI binding.
+
+Example:
+
+	spi@10000800 {
+		compatible = "brcm,bcm6368-spi", "brcm,bcm6358-spi";
+		reg = <0x10000800 0x70c>;
+
+		interrupts = <1>;
+
+		clocks = <&clkctl 9>;
+		clock-names = "spi";
+
+		num-cs = <5>;
+
+		#address-cells = <1>;
+		#size-cells = <0>;
+	};