Nuvoton NPCM7XX I2C Controller
NPCM7xx includes 16 I2C contollers. THis driver operates the controller.
This module also includes a slave mode, which will be submitted later on.
Any feedback would be appreciated.
v2 -> v1:
- run check patch in strict mode.
- use linux crc.
- define regs in constant offset without base.
- remove debug prints.
- no declerations for local functions.
v1: initial version
Signed-off-by: Tali Perry <tali.per...@gmail.com>
---
.../devicetree/bindings/i2c/i2c-npcm7xx.txt | 27 ++++++++++++++++++++++
MAINTAINERS | 8 +++++++
2 files changed, 35 insertions(+)
create mode 100644 Documentation/devicetree/bindings/i2c/i2c-npcm7xx.txt
diff --git a/Documentation/devicetree/bindings/i2c/i2c-npcm7xx.txt
b/Documentation/devicetree/bindings/i2c/i2c-npcm7xx.txt
new file mode 100644
index 000000000000..e2ee45d7a41e
--- /dev/null
+++ b/Documentation/devicetree/bindings/i2c/i2c-npcm7xx.txt
@@ -0,0 +1,27 @@
+Nuvoton NPCM7XX I2C bus
+
+The NPCM750x includes sixteen I2C busses
+
+Required properties:
+- compatible : must be "nuvoton,npcm750-i2c-bus"
+- reg : Offset and length of the register set for the device.
+- interrupts : Contain the I2C interrupt with flags for falling edge.
+- clocks : phandle of I2C reference clock.
+
+Optional:
+- bus-frequency : Contain the I2C bus frequency,
+ the default I2C bus frequency is 100000.
+- pinctrl-0 : must be <&smbX_pins>, X is module number
+ (on NPCM7XX it's 0 to 15)
+- pinctrl-names : should be set to "default"
+Example:
+
+ i2c0: i2c-bus@80000 {
+ compatible = "nuvoton,npcm750-i2c-bus";
+ reg = <0x80000 0x1000>;
+ clocks = <&clk NPCM7XX_CLK_APB2>;
+ bus-frequency = <100000>;
+ interrupts = <GIC_SPI 64 IRQ_TYPE_LEVEL_HIGH>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&smb0_pins>;
+ };
diff --git a/MAINTAINERS b/MAINTAINERS
index 192d7f73fd01..13bac916d21d 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1244,6 +1244,14 @@ F: drivers/i2c/busses/i2c-aspeed.c
F:
Documentation/devicetree/bindings/interrupt-controller/aspeed,ast2400-i2c-ic.txt
F: Documentation/devicetree/bindings/i2c/i2c-aspeed.txt
+ARM/NUVOTON I2C DRIVER
+M: Tali Perry <tali.per...@gmail.com>
+L: linux-...@vger.kernel.org
+L: open...@lists.ozlabs.org (moderated for non-subscribers)
+S: Maintained
+F: drivers/i2c/busses/i2c-npcm7xx.c
+F: Documentation/devicetree/bindings/i2c/i2c-npcm7xx.txt
+
ARM/ASPEED MACHINE SUPPORT
M: Joel Stanley <j...@jms.id.au>
R: Andrew Jeffery <and...@aj.id.au>
--
2.14.1
