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* [PATCH v5 1/2] dt-bindings: i2c: Add Spreadtrum I2C controller documentation
@ 2017-08-29  3:35 ` Baolin Wang
  0 siblings, 0 replies; 9+ messages in thread
From: Baolin Wang @ 2017-08-29  3:35 UTC (permalink / raw)
  To: wsa, mark.rutland, robh+dt
  Cc: andriy.shevchenko, linux-i2c, devicetree, linux-kernel, broonie,
	baolin.wang, baolin.wang

This patch adds the binding documentation for Spreadtrum I2C
controller device.

Signed-off-by: Baolin Wang <baolin.wang@spreadtrum.com>
Acked-by: Rob Herring <robh@kernel.org>
---
Changes since v4:
 - No updates.

Changes since v3:
 - Add Ack from RobH.

Changes since v2:
 - Change compatible strings to be SoC specific.

Changes since v1:
 - No updates.
---
 Documentation/devicetree/bindings/i2c/i2c-sprd.txt |   31 ++++++++++++++++++++
 1 file changed, 31 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/i2c/i2c-sprd.txt

diff --git a/Documentation/devicetree/bindings/i2c/i2c-sprd.txt b/Documentation/devicetree/bindings/i2c/i2c-sprd.txt
new file mode 100644
index 0000000..60b7cda
--- /dev/null
+++ b/Documentation/devicetree/bindings/i2c/i2c-sprd.txt
@@ -0,0 +1,31 @@
+I2C for Spreadtrum platforms
+
+Required properties:
+- compatible: Should be "sprd,sc9860-i2c".
+- reg: Specify the physical base address of the controller and length
+  of memory mapped region.
+- interrupts: Should contain I2C interrupt.
+- clock-names: Should contain following entries:
+  "i2c" for I2C clock,
+  "source" for I2C source (parent) clock,
+  "enable" for I2C module enable clock.
+- clocks: Should contain a clock specifier for each entry in clock-names.
+- clock-frequency: Constains desired I2C bus clock frequency in Hz.
+- #address-cells: Should be 1 to describe address cells for I2C device address.
+- #size-cells: Should be 0 means no size cell for I2C device address.
+
+Optional properties:
+- Child nodes conforming to I2C bus binding
+
+Examples:
+i2c0: i2c@70500000 {
+	compatible = "sprd,sc9860-i2c";
+	reg = <0 0x70500000 0 0x1000>;
+	interrupts = <GIC_SPI 11 IRQ_TYPE_LEVEL_HIGH>;
+	clock-names = "i2c", "source", "enable";
+	clocks = <&clk_i2c3>, <&ext_26m>, <&clk_ap_apb_gates 11>;
+	clock-frequency = <400000>;
+	#address-cells = <1>;
+	#size-cells = <0>;
+};
+
-- 
1.7.9.5

^ permalink raw reply	[flat|nested] 9+ messages in thread

end of thread, other threads:[~2017-08-29 10:41 UTC | newest]

Thread overview: 9+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2017-08-29  3:35 [PATCH v5 1/2] dt-bindings: i2c: Add Spreadtrum I2C controller documentation Baolin Wang
2017-08-29  3:35 ` Baolin Wang
2017-08-29  3:35 ` [PATCH v5 2/2] i2c: Add Spreadtrum I2C controller driver Baolin Wang
2017-08-29  3:35   ` Baolin Wang
2017-08-29 10:14   ` Wolfram Sang
2017-08-29 10:41     ` Baolin Wang
2017-08-29 10:41       ` Baolin Wang
2017-08-29 10:14 ` [PATCH v5 1/2] dt-bindings: i2c: Add Spreadtrum I2C controller documentation Wolfram Sang
2017-08-29 10:14   ` Wolfram Sang

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