Re: [PATCH 02/10] mfd: dt-bindings: Add bindings for the Juniper I2CS MFD
From: Rob Herring <robh@kernel.org>
Date: 2016-10-10 20:38:26
Also in:
linux-gpio, linux-hwmon, linux-i2c, linux-leds, lkml
On Fri, Oct 07, 2016 at 06:21:01PM +0300, Pantelis Antoniou wrote:
quoted hunk ↗ jump to hunk
From: Georgi Vlaev <redacted> Add device tree bindings for the Juniper I2CS MFD driver. Signed-off-by: Georgi Vlaev <redacted> [Ported from Juniper kernel] Signed-off-by: Pantelis Antoniou <redacted> --- Documentation/devicetree/bindings/mfd/jnx-i2cs.txt | 68 ++++++++++++++++++++++ 1 file changed, 68 insertions(+) create mode 100644 Documentation/devicetree/bindings/mfd/jnx-i2cs.txtdiff --git a/Documentation/devicetree/bindings/mfd/jnx-i2cs.txt b/Documentation/devicetree/bindings/mfd/jnx-i2cs.txt new file mode 100644 index 0000000..0ec103b --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/jnx-i2cs.txt@@ -0,0 +1,68 @@ +Device-Tree bindings for Juniper Networks I2CS FPGA MFD + +Required properties: +- compatible - Must be one of: + "jnx,i2cs-rcb" (Routing Engine or Control Board FRUs) + "jnx,i2cs-fpc" (Flexible Port Concentrator FRUs) + "jnx,i2cs-sib" (Switching Interface Board FRUs) + "jnx,i2cs-fan" (Fan Tray FRUs) + +Optional properties: + +Depending on the FRU, the I2CS MFD has varied group of sub-devices: + +Device Description +------ ----------- +jnx,i2cs-gpio : Virtual gpio mapping driver +jnx,i2cs-fan-hwmon : hwmon driver for fan trays +jnx,i2c-mux-i2cs : I2C Mux driver for FPC FRUs +jnx,leds-i2cs : Led driver + +All these optional nodes are described in their respective binding +documents. + +Example node: + +i2cs@54 { + compatible = "jnx,i2cs-fpc"; + reg = <0x54>; + #address-cells = <0>; + #size-cells = <0>; + + fpc2_mux {
Generic node names please.
mux {
+ compatible = "jnx,i2c-mux-i2cs";
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ fpc2i2c0: i2c@0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0>;
+ };
+ };
+
+ fpc2_gpiomap: gpio-jnx-i2cs {
gpio@54 {
+ compatible = "jnx,gpio-i2cs";
+ reg = <0x54>;
+ #gpio-cells = <2>;
+ gpio-controller;
+ interrupt-controller;
+
+ /*
+ * Map bits [0-3] of reg 0x21 as gpio inputs, bits [4-7]
+ * as gpio outputs
+ */
+ i2c-gpio-map = <0x21 0x0f>;
+ };
+
+ leds-jnx-i2cs {
leds {
+ compatible = "jnx,leds-i2cs";
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ sib8-active {
+ reg = <0>;
+ linux,default-trigger = "sib8-active";
+ };
+ };
+};
--
1.9.1